Astm - A564 Pdf

ASTM A564/A564M is the standard specification for hot-rolled and cold-finished age-hardening stainless steel bars and shapes. It is primarily used for materials requiring high strength and corrosion resistance, most notably Grade 630 (commonly known as 17-4 PH stainless steel). Scope & Application

The standard covers various forms including rounds, squares, hexagons, angles, and channels. These materials are typically utilized in high-stress environments such as: Aerospace: Structural components, fasteners, and shafts. Oil & Gas: Valve parts, gears, and pump shafts. Marine: Propeller shafts and marine fittings.

Chemical Processing: Equipment requiring high durability and corrosion resistance. Key Technical Features

ASTM A564/A564M is a critical international standard covering hot-rolled and cold-finished age-hardening stainless steel bars and shapes. These materials are designed for high-strength applications that also require excellent corrosion resistance, such as aerospace components, fasteners, and shafts. 1. Scope and Material Types

Forms: The specification covers bars and shapes, including rounds, squares, hexagons, and angles, typically produced by forging, extruding, or rolling.

Key Grades: The most common grade under this specification is Type 630 (UNS S17400), widely known as 17-4 PH stainless steel. Other types included are XM-25, Type 631, and Type 632.

Purpose: The material is chosen for its superior strength-to-weight ratio and resistance to corrosion, useful at temperatures up to 600∘F600 raised to the composed with power F 315∘C315 raised to the composed with power C 2. Chemical Composition and Heat Treatment

Precipitation Hardening: These steels are generally supplied in the solution-annealed condition and then age-hardened to achieve specific mechanical properties without significant distortion or cracking. Common Heat Treatments: Solution Annealed (Condition A): The initial state.

Age Hardening (Conditions H900, H1025, H1150, etc.): The number represents the hardening temperature (e.g., 900∘F900 raised to the composed with power F 1150∘F1150 raised to the composed with power F

Key Chemical Elements: Type 630 consists primarily of Iron (Fe), Chromium (Cr) at 15–17.5%, Nickel (Ni) at 3–5%, and Copper (Cu) at 3–5%. 3. Mechanical Properties

ASTM A564 defines strict requirements for tensile strength, yield strength, reduction of area, and hardness.

17-4 PH (630) Strength: Depending on the aging condition, the tensile strength can range from 145 ksi [1000 MPa] (H1075) to over 190 ksi [1310 MPa] (H900).

Hardness: Usually measured on the Rockwell C scale (HRC) or Brinell scale. 4. Key Applications Aerospace: Landing gear components and structural parts. Fasteners: High-strength bolts, screws, and studs. Oil & Gas: Pump shafts, valve stems, and downhole tools.

Marine & Industrial: Components requiring both corrosion resistance and high wear resistance. 5. Finding the Official ASTM A564 PDF

The ASTM A564 standard is regularly updated, with versions like 2013, 2019a, and 2025 appearing in searches.

Official Source: The definitive, legally binding PDF is available for purchase on the ASTM International website.

Technical Summaries: Many manufacturers and suppliers provide summaries or related PDFs for free, such as Boltport Fasteners for Grade 630 or TM Steels for 17-4 PH data.

If you are looking to purchase, I can help find suppliers who provide material test reports. Let me know: Which grade (e.g., 630/17-4PH) do you need?

Otherwise, I can also provide the specific chemical compositions for other types mentioned in the standard (like Type 631 or XM-25). ASTM A564 Specification Overview - Scribd

ASTM A564 (often referred to with its metric equivalent ASTM A564M) is the

Standard Specification for Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes

. It covers a variety of precipitation-hardening (PH) stainless steel grades, such as the widely used 17-4 PH (Type 630)

, which are valued for their high strength and corrosion resistance. ASTM International Draft Summary: ASTM A564/A564M 1. Scope & Materials

This specification covers bars and shapes including rounds, squares, hexagons, angles, tees, and channels. These materials can be produced via hot rolling, extruding, or forging. It is generally used for parts requiring high strength and corrosion resistance at temperatures up to: ASTM International 600°F (315°C) for most types. 700°F (370°C) for Type 632. 840°F (450°C) for Type UNS S46910. ASTM International 2. Common Grades

ASTM A564 includes several specialized PH stainless steel grades: Titanium Industries, Inc. Type 630 (UNS S17400): Commonly known as 17-4 PH. Type XM-12 (UNS S15500): Known as 15-5 PH. Type XM-13 (UNS S13800): Known as 13-8 PH. Type XM-25 (UNS S45000): Custom 450. Type 631 (UNS S17700):

17-7 PH (limited to small diameter bars due to ferrite content). ASTM International 3. Mechanical Properties & Heat Treatment

A564/A564M Standard Specification for Hot-Rolled and Cold ... - ASTM

The ASTM A564 specification defines the standards for hot-rolled and cold-finished age-hardening (precipitation-hardening) stainless steel bars and shapes. This standard is critical for industries like aerospace, oil and gas, and chemical processing, where materials must withstand extreme stress and corrosive environments while maintaining precise dimensions. Scope of ASTM A564

The specification covers a variety of product forms including rounds, squares, hexagons, bar shapes, angles, tees, and channels. These may be produced via hot rolling, extruding, or forging. The materials are primarily used for parts requiring high strength and corrosion resistance at temperatures generally up to 600°F (315°C), though some specialized grades like Type 632 can reach 700°F (370°C). Key Material Grades and UNS Designations

ASTM A564 includes several high-performance alloys, the most prominent being Type 630, widely known as 17-4 PH (UNS S17400). Grade/Type UNS Designation Key Characteristics 630 (17-4 PH) S17400

Most common grade; high strength, hardness, and corrosion resistance. 631 (17-7 PH) S17700

High ferrite content; best suited for smaller diameter bars due to ductility limits. XM-13 S13800

13-8 Mo; high-strength martensitic alloy with excellent toughness. XM-25 S45000

Custom 450; machinable in the as-received fully heat-treated condition. Mechanical Properties and Heat Treatment

The defining feature of ASTM A564 materials is their ability to be heat treated to specific mechanical properties via age hardening.

Understanding ASTM A564: The Standard for High-Strength Age-Hardening Stainless Steel

In the world of high-performance engineering, finding a material that balances extreme strength with reliable corrosion resistance can be a challenge. That is where ASTM A564 comes into play. If you are looking for the "rulebook" on age-hardening stainless steel bars and shapes, this is the specification you need to know. What is ASTM A564? astm a564 pdf

ASTM A564 (often paired with its metric counterpart, SA-564M) is the standard specification for hot-rolled and cold-finished age-hardening stainless steel bars and shapes. It covers various product forms, including:

Shapes: Rounds, squares, hexagons, angles, tees, and channels.

Manufacturing Methods: These can be produced via hot rolling, extruding, or forging. Why "Age-Hardening"?

The standout feature of the steels covered by this specification is their ability to be age-hardened (also known as precipitation hardening). This process involves heat treating the metal to significantly increase its yield strength and hardness without the risk of cracking or distortion that often plagues other high-strength steels. Popular Grades Under ASTM A564

While the specification covers several types, one name appears more than any other: Grade 630, better known as 17-4 PH (UNS S17400).

17-4 PH (Grade 630): A martensitic precipitation-hardening steel that offers an incredible combination of high strength and modest corrosion resistance. It is widely used in aerospace, chemical processing, and marine environments.

Type XM-25: Notable for being machinable even in its fully heat-treated condition.

Types 631 and 632: These contain higher levels of ferrite, meaning they are typically limited to smaller diameter bars to maintain ductility. Key Technical Requirements

If you are reviewing an ASTM A564 PDF for a project, keep an eye on these critical sections: Astm A564-10 | PDF | Forging | Stainless Steel - Scribd

If you are looking for the ASTM A564 standard in PDF format, you are likely involved in the selection, testing, or specification of high-strength precipitation-hardening stainless steels.

While the official PDF must be purchased from ASTM International or authorized resellers (to ensure you have the latest copyright-compliant version), the following guide serves as a helpful "cheat sheet" to the standard. This will help you determine if A564 is the right specification for your needs before you acquire the full document.

How to Get the Official ASTM A564 PDF (Legally)

You will find dozens of sketchy websites offering “free ASTM A564 PDF downloads.” Avoid them. They often use outdated revisions (e.g., 2013 instead of 2022) or contain OCR errors that can misstate a heat treat temperature by 50°F—enough to scrap a $10,000 part.

Scope and Materials

• Covered products: Hot‑worked or cold‑finished bars, billets, and forgings.
• Common grades: Includes a range of alloyed stainless steels such as precipitation‑hardening (PH) and martensitic grades (e.g., 17-4 PH, 15-5 PH, 13-8 Mo) as well as some duplex and other high‑strength alloys depending on purchaser specification.
• Forms: Round, square, hex, flat bars, and forgings for subsequent machining or fabrication.

Summary

ASTM A564 is the go-to standard for Precipitation-Hardening Stainless Steel bars. If you are machining parts like pump shafts, landing gear components, or high-strength fasteners, you are likely looking at Grade 630 (17-4 PH). When reviewing the PDF, pay close attention to the Condition (H900, H1150, etc.), as this dictates the final strength and hardness of the part.

Comprehensive Guide to ASTM A564: Standard Specification for Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes

If you are searching for an ASTM A564 PDF, you are likely involved in high-performance engineering, aerospace, or chemical processing. ASTM A564 is the definitive industry standard covering age-hardening (precipitation-hardening) stainless steels. These materials are prized for their unique ability to achieve high strength and hardness through heat treatment while maintaining excellent corrosion resistance.

This article provides a deep dive into the specifications, grades, and applications covered by ASTM A564 to help you understand why this standard is critical for modern manufacturing. What is ASTM A564?

ASTM A564/A564M is a standard specification issued by ASTM International. It covers various forms of stainless steel, primarily bars and shapes, that are "age-hardening." Unlike standard 300-series stainless steels (which are hardened by cold working) or 400-series (hardened by quenching), A564 alloys use a specialized heat-treatment process called precipitation hardening. Key Characteristics:

High Strength: Can reach tensile strengths exceeding 150,000 psi.

Corrosion Resistance: Comparable to 304 stainless steel in many environments.

Dimensional Stability: Minimal distortion during the low-temperature aging process.

Versatility: Available in hot-rolled and cold-finished conditions. Common Grades under ASTM A564

The most recognizable grades within the ASTM A564 specification are the "17-4 PH" and "15-5 PH" varieties. 1. Type 630 (17-4 PH)

The "workhorse" of the precipitation-hardening family. It contains approximately 17% chromium and 4% nickel, with copper additions to facilitate hardening.

Best for: Pump shafts, valve components, and aerospace parts. 2. Type 631 (17-7 PH)

A chromium-nickel-aluminum alloy. It is known for high strength and fatigue resistance.

Best for: Springs and washers that operate at high temperatures. 3. XM-12 (15-5 PH)

A variant of 17-4 that offers better toughness and transverse properties. It is often used when a higher degree of structural integrity is required. 4. XM-13 (13-8 Mo)

Provides excellent toughness and resistance to stress-corrosion cracking in harsh environments. Understanding Heat Treatment Conditions

When reviewing an ASTM A564 PDF data sheet, you will encounter various "Conditions." These refer to the state of the metal following heat treatment:

Condition A (Solution Annealed): The material is soft and ready for machining or cold working. It has not yet been "aged."

Condition H900, H1025, H1150: The "H" stands for Hardened, followed by the temperature (in Fahrenheit) used for the aging process. A lower aging temperature (e.g., H900) results in higher hardness, while a higher temperature (e.g., H1150) results in better ductility and toughness. Chemical and Mechanical Requirements

To comply with ASTM A564, the material must meet strict chemical compositions and mechanical property benchmarks. Chromium (%) Nickel (%) Copper (%) Yield Strength (min) 630 (17-4) 15.0 – 17.5 3.0 – 5.0 3.0 – 5.0 145 ksi (H900) XM-12 (15-5) 14.0 – 15.5 3.5 – 5.5 2.5 – 4.5 145 ksi (H900)

Note: Always refer to the official ASTM A564 PDF for the most current and precise values, as standards are updated periodically. Applications of ASTM A564 Materials

Due to the balance of mechanical strength and chemical stability, these alloys are found in demanding sectors:

Aerospace: Landing gear components, engine parts, and structural fasteners.

Oil & Gas: High-pressure valves, pump shafts, and offshore platform hardware. ASTM A564/A564M is the standard specification for hot-rolled

Medical: Surgical instruments and orthopedic implants where high hardness and sterilization resistance are required.

Food Processing: Gears and wear strips that must resist both corrosion and mechanical wear. Why You Need the Official ASTM A564 PDF

While summaries are helpful, engineers and procurement officers should always consult the full ASTM A564 PDF document for:

Permissible Variations: Understanding tolerances for diameter, thickness, and straightness.

Test Methods: Specific protocols for tension tests and impact tests.

Certification: Ensuring the Mill Test Report (MTR) aligns with the specific year-version of the standard. Conclusion

ASTM A564 is the cornerstone for anyone working with age-hardening stainless steel bars. Whether you are opting for the versatile 17-4 PH or the high-toughness 13-8 Mo, understanding the thermal processing and chemical limits defined by this standard is essential for project success.

Looking for more technical specs? You can purchase and download the official version of the ASTM A564 PDF directly from the ASTM International website to ensure your project meets all regulatory and safety requirements.

The Importance of ASTM A564 PDF in the Manufacturing Industry

The American Society for Testing and Materials (ASTM) is a globally recognized leader in the development and delivery of voluntary consensus standards. One of the most widely used standards in the manufacturing industry is ASTM A564, which covers the requirements for precipitation-hardening stainless steel bars, shapes, and forgings. In this article, we will explore the significance of ASTM A564 PDF and its applications in various industries.

What is ASTM A564?

ASTM A564 is a standard specification that covers precipitation-hardening stainless steel bars, shapes, and forgings. These materials are used in a wide range of applications, including aerospace, chemical processing, and oil and gas industries. The standard provides detailed requirements for the chemical composition, mechanical properties, and testing methods for these materials.

What is Precipitation-Hardening Stainless Steel?

Precipitation-hardening stainless steel is a type of corrosion-resistant steel that exhibits high strength and excellent resistance to corrosion. This type of steel is achieved through a process called precipitation hardening, which involves heating the steel to a specific temperature to create precipitates that strengthen the material. Precipitation-hardening stainless steel is widely used in applications where high strength, corrosion resistance, and toughness are required.

Importance of ASTM A564 PDF

The ASTM A564 PDF is a valuable resource for manufacturers, engineers, and designers who work with precipitation-hardening stainless steel materials. The PDF provides detailed information on the standard specification, including:

1. Chemical Composition: The PDF outlines the chemical composition requirements for precipitation-hardening stainless steel, including the maximum and minimum percentages of elements such as chromium, nickel, and molybdenum.
2. Mechanical Properties: The standard specifies the mechanical properties of the material, including tensile strength, yield strength, and elongation.
3. Testing Methods: The PDF describes the testing methods required to ensure that the material meets the specified requirements, including tensile testing, hardness testing, and corrosion testing.
4. Inspection and Acceptance: The standard provides guidelines for inspection and acceptance of the material, including requirements for surface finish, dimensions, and non-destructive testing.

Applications of ASTM A564

ASTM A564 materials are widely used in various industries, including:

1. Aerospace: Precipitation-hardening stainless steel is used in aerospace applications due to its high strength, corrosion resistance, and toughness.
2. Chemical Processing: The material is used in chemical processing applications where corrosion resistance and high strength are required.
3. Oil and Gas: ASTM A564 materials are used in oil and gas applications, including offshore platforms, due to their corrosion resistance and high strength.
4. Medical Equipment: Precipitation-hardening stainless steel is used in medical equipment applications where high strength, corrosion resistance, and biocompatibility are required.

Benefits of Using ASTM A564 PDF

The ASTM A564 PDF provides several benefits to manufacturers, engineers, and designers, including:

1. Improved Material Selection: The PDF provides detailed information on the chemical composition, mechanical properties, and testing methods for precipitation-hardening stainless steel.
2. Increased Efficiency: The standard specification ensures that materials meet specific requirements, reducing the risk of material failure and improving efficiency.
3. Enhanced Safety: The PDF provides guidelines for inspection and acceptance, ensuring that materials meet safety standards.
4. Cost Savings: The use of ASTM A564 materials can result in cost savings due to their high strength, corrosion resistance, and durability.

Conclusion

In conclusion, the ASTM A564 PDF is a valuable resource for manufacturers, engineers, and designers who work with precipitation-hardening stainless steel materials. The standard specification provides detailed requirements for chemical composition, mechanical properties, testing methods, and inspection and acceptance. The use of ASTM A564 materials offers several benefits, including improved material selection, increased efficiency, enhanced safety, and cost savings. As the manufacturing industry continues to evolve, the importance of ASTM A564 PDF will remain a critical component in ensuring the quality and reliability of precipitation-hardening stainless steel materials.

References

• ASTM A564/A564M-19: Standard Specification for Precipitation-Hardening Stainless Steel Bars, Shapes, and Forgings
• ASM International: Precipitation-Hardening Stainless Steels
• SAE AMS 5643: Precipitation-Hardening Stainless Steel Bars, Shapes, and Forgings

Download ASTM A564 PDF

The ASTM A564 PDF can be downloaded from the ASTM website or purchased through various online platforms. It is recommended that users review the standard specification carefully to ensure compliance with relevant regulations and industry standards.

The ASTM A564/A564M is the standard specification for hot-rolled and cold-finished age-hardening stainless steel bars and shapes. It primarily covers alloys designed for high strength and corrosion resistance, most notably Type 630, also known as 17-4 PH (UNS S17400). Key Technical Articles and PDFs

If you are looking for a comprehensive overview or the full technical specifications, these sources provide high-quality information:

Standard Specification Overview: For a summary of the scope, chemical composition, and mechanical properties, Scribd's ASTM A564 Overview provides a structured look at the document.

Engineering Insight Article: For a more readable "article" style guide rather than just a raw data sheet, Saky Steel's Guide on ASTM A564 Type 630 details key features, technical specs, and industry applications for 17-4 PH round bars.

Full Standard PDF (Legacy/Reference): A complete, downloadable PDF version of an earlier revision (2002) is available via HTPipe, which includes the full scope, referenced documents, and detailed heat treatment tables. Major Alloys & Properties Covered

A564/A564M Standard Specification for Hot-Rolled and Cold ... - ASTM

ASTM A564 PDF: A Comprehensive Guide to the Standard Specification

ASTM A564 is a standard specification for age-hardening stainless steel bars and shapes. The specification covers various grades of stainless steel, including 630, 631, 634, 635, and 637, which are commonly used in aerospace, chemical processing, and other industries.

What is ASTM A564?

ASTM A564 is a standard specification published by the American Society for Testing and Materials (ASTM) that outlines the requirements for age-hardening stainless steel bars and shapes. The specification covers various grades of stainless steel, which are designed to provide high strength, corrosion resistance, and durability.

What is the significance of ASTM A564 PDF? Summary ASTM A564 is the go-to standard for

The ASTM A564 PDF is a widely used document that provides detailed information on the standard specification. The PDF version of the specification is convenient to access and use, allowing engineers, designers, and manufacturers to quickly refer to the requirements and guidelines for age-hardening stainless steel bars and shapes.

Key Features of ASTM A564 PDF

Some of the key features of ASTM A564 PDF include:

• Material specifications: The specification outlines the chemical composition, mechanical properties, and other requirements for various grades of age-hardening stainless steel.
• Heat treatment: The specification provides guidelines for heat treatment, including solution treatment, aging, and precipitation hardening.
• Mechanical properties: The specification outlines the mechanical properties, such as tensile strength, yield strength, and elongation, for various grades of stainless steel.
• Corrosion resistance: The specification provides guidelines for corrosion resistance, including testing methods and requirements.

Industries that Use ASTM A564

ASTM A564 is widely used in various industries, including:

• Aerospace: The specification is used for aircraft and spacecraft components, such as engine parts, landing gear, and other structural components.
• Chemical processing: The specification is used for chemical processing equipment, such as pumps, valves, and pipes.
• Oil and gas: The specification is used for oil and gas equipment, such as wellheads, valves, and fittings.

How to Access ASTM A564 PDF

The ASTM A564 PDF can be accessed through various sources, including:

• ASTM website: The official ASTM website provides access to the specification, which can be purchased or downloaded as a PDF file.
• Online libraries: Online libraries, such as IHS Standards Store and ANSI Webstore, provide access to the specification.
• Document providers: Document providers, such as Techstreet and Standards Store, offer access to the specification.

In conclusion, ASTM A564 PDF is a comprehensive guide to the standard specification for age-hardening stainless steel bars and shapes. The specification provides detailed information on material specifications, heat treatment, mechanical properties, and corrosion resistance, and is widely used in various industries.

The ASTM A564 / A564M is the standard specification for hot-rolled and cold-finished age-hardening stainless steel bars and shapes. It covers a variety of corrosion-resistant and high-strength steels, most notably Grade 630 (commonly known as 17-4 PH stainless steel). Core Content of ASTM A564

The specification provides critical technical data required for manufacturing and procurement:

Scope & Applications: These steels are designed for parts requiring high strength and corrosion resistance at room temperature or up to 600∘F600 raised to the composed with power F 315∘C315 raised to the composed with power C

Common Grades: Includes types such as 630 (UNS S17400), XM-13 (UNS S13800), and XM-16.

Heat Treatment Conditions: Material is often purchased in the solution-annealed condition and then age-hardened to achieve specific mechanical properties (e.g., conditions H900, H1025, H1075, H1150). Mechanical Requirements: Specifies minimum values for: Tensile Strength: Often exceeding ] for certain conditions. Yield Strength: Often ] minimum for Condition H1075.

Hardness: Defined by Brinell (HBW) or Rockwell C (HRC) scales.

Elongation & Reduction of Area: Ensuring material ductility.

Chemical Composition: Detailed tables for carbon, manganese, phosphorus, sulfur, silicon, chromium, nickel, and copper (the primary age-hardening element in 17-4 PH). Typical Document Structure A standard PDF of this specification typically includes: ASTM A564 Specification for Stainless Steel | PDF - Scribd

specification covers hot-rolled and cold-finished age-hardening stainless steel bars and shapes

. It is primarily used for parts requiring high strength and excellent corrosion resistance, such as those found in the aerospace and chemical processing industries. Boltport Fasteners Core Overview of ASTM A564 Key Material Type

: Includes precipitation-hardening martensitic and austenitic stainless steels. Common Grades : The most recognized grade under this specification is , also known as (UNS S17400). Temperature Range

: Suitable for high-strength applications at room temperature or service temperatures up to 600°F (315°C) Boltport Fasteners Common Mechanical Properties (Grade 630 / 17-4 PH)

Materials under this standard are valued for their ability to achieve a wide range of mechanical properties through different heat treatment "ages" (e.g., H900, H1050, H1150). Description Tensile Strength High strength achieved via precipitation hardening. Corrosion Resistance Comparable to 304 stainless steel in most environments. Fabrication

Good weldability and can be machined in the solution-annealed condition. Accessing the Full PDF

ASTM standards are copyrighted documents. You can typically find the official, full-text ASTM A564 PDF through the following types of sources: Official Purchase : The complete standard is available directly from the ASTM International Technical Datasheets

: For specific material properties without purchasing the full regulatory text, manufacturers like Boltport Fasteners

provide detailed PDFs covering chemical composition and mechanical requirements. chemical composition of a specific grade, or do you need a summary of the heat treatment conditions?

ASTM A564 UNS S17400 Material Specification - Boltport Fasteners

standard material specification for hot-rolled and cold-finished age-hardening stainless steel bars and shapes

. It primarily covers precipitation-hardening martensitic and austenitic stainless steels, most notably , which is commonly known as (UNS S17400). Zhengzhou Huitong Pipe Fittings Co.,Ltd. Key Specifications of ASTM A564 Material Types:

Includes various grades of age-hardening stainless steels designed for high strength and corrosion resistance. Common Applications:

Often used in aerospace, chemical processing, and structural components that require high hardness at temperatures up to 600°F (315°C). Product Forms:

Rounds, squares, hexagons, bar shapes, angles, tees, and channels produced via hot rolling, extruding, or forging. Mechanical Properties:

Can be heat-treated to various "H" conditions (e.g., H900, H1025) to achieve specific hardness and strength levels. For example, condition typically yields a Rockwell C hardness of 35–43. Zhengzhou Huitong Pipe Fittings Co.,Ltd. Resources and PDF Links

You can find detailed technical data and full specification excerpts at these sources: Full Specification PDF (Archive): ASTM A564/A564M-02 PDF for scope and chemical requirements. UNS S17400 Datasheet: Detailed breakdown of 17-4 PH properties under A564 Grade 630 Technical Data: Product specifications from

For the absolute latest version (e.g., A564/A564M-19), it is recommended to purchase directly from the ASTM International official site for specific heat-treat conditions like astm-a564.pdf

1. Grade 630 (UNS S17400 – "17-4 PH")

• The workhorse. 17% Chromium, 4% Nickel, 4% Copper.
• Conditions: H900 (hardest) to H1150 (toughest).
• Use case: Pump shafts, gears, nuclear components, aircraft fittings.

Why Use ASTM A564 Material?

If you are specifying A564 for a project, it is usually because:

1. High Strength-to-Weight Ratio: You need strength that exceeds standard 300-series stainless steel (like 304 or 316) but without the weight of high-alloy carbon steels.
2. Corrosion Resistance: You need a material that resists rust better than carbon steel but still holds a load.
3. Dimensional Stability: Unlike some other hardening processes, precipitation hardening causes minimal distortion, making it ideal for precision parts like gears, shafts, and valve components.