ASTM A747/A747M - 18

Standard Specification for Steel Castings, Stainless, Precipitation Hardening

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1.1 This specification covers iron-chromium-nickel-copper corrosion-resistant steel castings, capable of being strengthened by precipitation hardening heat treatment.1.2 These castings may be used in services requiring corrosion resistance and high strengths at temperatures up to 600?°F [315?°C]. They may be machined in the solution heat-treated condition and subsequently precipitation hardened to the desired high-strength mechanical properties specified in Table S24.1 with little danger of cracking or distortion.1.3 The material is not intended for use in the solution heat-treated condition. Note 1: If the service environment in which the material is to be used is considered conducive to stress-corrosion cracking, precipitation hardening should be performed at a temperature that will minimize the susceptibility of the material to this type of attack.1.4 Supplementary requirements of an optional nature are provided for use at the option of the purchaser. The supplementary requirement

Antal sider: 4

Internationale relationer :

ICS: 77.140.80 - Jern- og stålstøbegods

Varenummer: A004091