Astm A564 Pdf < 95% ULTIMATE >

Hardness typically ranges from 35-43 HRC (Rockwell C) for the H900 condition.

While the ASTM A564 document regulates dozens of specialized alloy variations, a few distinct grades dominate industrial manufacturing: Grade 630 (Type 17-4PH)

For example, for a Type 630 bar in the "Hardened and Double Tempered" condition, one vendor data sheet shows requirements of: astm a564 pdf

| Condition | Tensile Strength (MPa) | Yield Strength, 0.2% (MPa) | Elongation (%) | |---|---|---|---| | H900 | 1,310 | 1,172 | 10 | | H925 | 1,172 | 1,069 | 10 | | H1025 | 1,069 | 1,000 | 12 | | H1075 | 1,000 | 862 | 13 | | H1100 | 965 | 793 | 14 | | H1150 | 931 | 724 | 16 |

Often used in aerospace, chemical processing, and structural components that require high hardness at temperatures up to 600°F (315°C). Product Forms: Hardness typically ranges from 35-43 HRC (Rockwell C)

Sites like ANSI or IHS Markit provide licensed digital versions.

Due to their superior properties, ASTM A564 steels are used in demanding environments: Due to their superior properties, ASTM A564 steels

These properties are achieved through various heat treatment conditions (e.g., H900, H1025, H1150) which the specification references. Depending on the condition, the material can achieve dramatically different mechanical properties.