Grade GH1140
Corresponding Standard GB /T 15062-2008
Superalloy tube for general application
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:Remainder
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
① When smelted using an electric arc furnace, the Al+Ti content shall not exceed 1.55%. When smelted using an electric arc furnace (non-vacuum induction furnace) combined with electroslag remelting or vacuum refining, the Al+Ti content shall not exceed 1.75%.
Approximate Comparison Table
China Russia
GB ISC GOST
GH1140
(GH140)
H11400 ЭИ 602

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