Grade GH4145
Corresponding Standard DL /T 439-2018
The technical guide for high-temperature bolt of fossil-fired power plant
Classification Nickel and Nickel Alloys
GH4145 Chemical Element Composition Content (%)
Component Fe C Si Mn P S Cr Ni Cu Ti Zr B Al Mg
Minimum Value 5 - - - - - 14 70 - 2.25 - - 0.4 -
Maximum Value 9 0.08 0.35 0.35 0.015 0.01 17 - 0.5 2.75 0.05 0.01 1 0.01
GH4145 Mechanical Properties
condition Test Temperature Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
Reduction of Area
ψ
%
Hardness
HBW
Impact Energy Absorption
KV2
J
Bolt Material Room Temperature ≥1000 ≥550 ≥12 ≥18 262~331 -
GH4145 Corresponding Standards(Same grade name, different standards)

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