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Home Material GB /T 41157.3-2022
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Grade 05Cr15Ni4Cu4Mo2
China ISC C15CM
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
05Cr15Ni4Cu4Mo2 Chemical Element Composition Content (%)
Component C Si Mn P ① S ② Cr Ni Cu Mo
Minimum Value - - - - - 13.5 3 3 1.2
Maximum Value 0.07 1 1 0.025 0.02 15.5 5 5 2
05Cr15Ni4Cu4Mo2 Mechanical Properties
product Test Temperature Heat Treatment or Condition
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 Solid Solution Treatment - - - HBW: ≤363
HRC: ≤38
HV: ≤382		 -
Bolts, Screws, Studs Room Temperature Precipitation Hardening Screw type A grade:
≥ 960		 Screw type A grade:
≥ 790		 Screw type A grade:
≥ 0.2d		 Screw type A grade:
HBW: ≥ 302
HRC: ≥ 32
HV: ≥ 318		 0°C:
Class A screws:
≥60 (Level 1)
≥40 (Level 2/3)
Bolts, Screws, Studs Precipitation Hardening Screw type A grade:
≥ 630

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