Grade GH1140
China ISC H11400
Old Grade
Corresponding Standard GB /T 14992-2025
Superalloys and Intermetallic Compounds-Designation and Chemical Composition
Classification Special Alloy Steel
GH1140 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu Mo Ti W Al Ce More
Minimum Value 0.06 - - - - 20 35 - 2 0.7 1.4 0.2 - Fe:Balance
Maximum Value 0.12 0.8 0.7 0.025 0.015 23 40 0.25 2.5 1.2 1.8 0.6 0.05
Approximate Comparison Table Deformed High-Temperature Alloy
China Russia
GB ISC GOST
GH1140
(GH140)
H11400 ЭИ 602

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