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ASTM A564 Stainless Steel Age Hardened

ASTM A564

What is ASTM?

ASTM is the common designation for the ASTM International (formerly known as American Society for Testing and Materials). ASTM International is an American based standard organisation that oversees the development and curation of technical standards. One of these technical standards is A564.

What is A564?

The ASTM A564 (A564M is the equivalent metric version of A564) is a technical specification a that covers bars and profiles of age-hardened stainless steels. Variations of the steels covered are hot-finished or cold-finished rounds, squares, hexagons, bar shapes, angles, tees, and channels are included. These various shapes may be produced by hot rolling, extruding, or forging. The material shall be subjected to tension, impact, and hardness tests. The steel grades for the specification are defined by the chemical composition. ASTM A564 equivalent materials in other standards (JIS, EN, DIN, GOST etc.) may be found by investigating the individual material grades.

 

Material Grades of A564

There are three common grade naming conventions for A564:

1.Three Number Code: 

AZZ

3XX - Austenitic Chromium Nickel Alloys

4XX - Ferritic / Martensitic Chromium Alloys

Additional Letters are related to added elements.

Ti – Titanium

H – Higher Carbon

L – Lower carbon

N – Nitrogen

2. Unified Numbering System (UNS)

AXXXXXX

A – Primary material category letter S for steel or N for Nickel.

X – Unique Number code for category.

3. ASTM numbering system for proprietary steels.

XM - Z

Z - Code for steel grade.

 

Designations provided to represent the heat treatments provided to the materials:

Condition HXXXX

H - Heat Treatment

XXXXX - Temperature in Fahrenheit

Condition A

A - Annealed

See material pages of the steel grades of ASTM A564 for greater details on the material properties and equivalent materials:

Suppliers who provide materials according to ASTM A564:

Companies Locations
Best Stainless & Alloys USA
Global Metals Australia
SUZHOU A-ONE SPECIAL ALLOY CO.,LTD. China
Atlas Steels Australia
Calico Metal Industries Pvt. Ltd. India
ACNIS International France, Brasil, China
TW Metals USA, UK,  Poland, France, India, Mexico, Japan, China, Israel
CALIFORNIA METAL & SUPPLY INC. USA
METAL UDYOG India
MMC Ltd USA, UK
Nippon Titanium Metals Corporation Japan
Beartech Alloys USA
Jiaxing MT stainless steel co.,ltd. China
Farmers Copper LTD. USA
B.B.S. i Halmstad AB Sweden
LIAISON STAINLESS, INC. USA
Interlloy Pty Ltd Australia