Heat Resisting, High Alloy Steels

Compositional Analysis %
GradeSYMBOLASTM A297CSiMnPSCrMoNiSupply Condition
302C35 8/18 HF 0.4 2.0 2.0 0.05 0.05 17 - 22 1.5 6 - 10 As Cast
309C30 12/25 HH 0.5 2.5 2.0 0.05 0.05 22 - 27 1.5 10 - 14
310C45 20/25 HK  0.5 3.0 2.0 0.05 0.05 22 - 27 1.5 17 - 22
311C11 25/20 HN 0.5 3.0 2.0 0.05 0.05 17 - 23 1.5 23 - 28
330C12 37/18 HT 0.75 3.0 2.0 0.05 0.05 13 - 20 1.5 30 - 40
331C60 40/20 HU 0.75 3.0 2.0 0.05 0.05 15 - 25 1.5 36 - 46
334C11 55/18 HW 0.75 3.0 2.0 0.05 0.05 10 - 20 1.5 55 - 65

Composition % is maximum unless shown otherwise

Specialist Alloys not shown above:

TECHNICAL DATA - ASTM B753 Alloy T36

A 36% nickel-iron alloy possessing a rate of thermal expansion approximately one-tenth that of carbon steel at temperatures up to 205°C

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