Grade 04Cr15Ni6CuMoNb
China ISC C15CMN
Corresponding Standard GB /T 41157.3-2022
Fasteners for Nuclear Power Plants— Part3: Bolts, Screws and Studs Made of Corrosion-Resistant Stainless Steel
Classification Precipitation-Hardening Stainless Steel
04Cr15Ni6CuMoNb Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu Mo More
Minimum Value - - - - - 14 6 1.25 0.5 Nb:≥8×w(C) ③
Maximum Value 0.05 1 1 0.02 0.005 16 7 1.75 1
04Cr15Ni6CuMoNb Mechanical Properties
product Test Temperature Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
Hardness
HBW
Impact Energy Absorption
KV2
J
Bolts, Screws, Studs Room Temperature 960~1080 ≥790 ≥0.2d
HBW: ≥292
HRC: ≥30
HV: ≥307
-80°C:
≥60
Bolts, Screws, Studs ≥630

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