Grade GH1140
Corresponding Standard GJB 3167-1988
Specification for cold drawn wires of heat-resisting superalloy for cold upsetting
Classification Special Alloy Steel
GH1140 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Mo Ti W Al Ce More
Minimum Value 0.06 - - - - 20 35 2 0.7 1.4 0.2 - Fe:Remainder;Al+Ti≤1.75
Maximum Value 0.12 0.8 0.7 0.025 0.015 23 40 2.5 1.2 1.8 0.6 0.05
• B and Ce are added based on calculated amounts and are not analyzed. The addition amounts shall be specified in the quality certificate.
• The permissible deviations in the chemical composition of wire rods shall comply with Table 4 of the original GB/T 14992 standard.
• Upon the buyer\'s request, alloys with stricter composition ranges than those specified in the table can be supplied.
GH1140 Mechanical Properties
condition Test Temperature Heat Treatment or Condition
Tensile Strength
σb
Mpa
Elongation or Extension Rate
δ
%
Hardness
HBW
Wire material Room Temperature 1050~1080°C, Air cooling ≤735 ≥40 -

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