中文版
Home Material ISO 4955-2016
简体 | 繁體
Grade X7NiCrWCuCoNbNB25-23-3-3-3-2
ISO Numeric Designation 4990-310-35-U
Corresponding Standard ISO 4955-2016
Heat-resistant Steels
Classification Alloy Steel
Properties Corrosion Resistance
X7NiCrWCuCoNbNB25-23-3-3-3-2 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu N W Nb B Co
Minimum Value 0.04 - - - - 21.5 23.5 2.5 0.2 3 0.4 0.002 1
Maximum Value 0.1 0.4 0.6 0.025 0.015 23.5 26.5 3.5 0.3 4 0.6 0.008 2
X7NiCrWCuCoNbNB25-23-3-3-3-2 Mechanical Properties
Heat Treatment or Condition
Tensile Strength
σb
Mpa 		Yield Point
σs
Mpa 		Elongation or Extension Rate
δ
% 		Hardness
HBW
Solid Solution Annealing (+AT) 650~850 ≥310 ≥35 ≤185

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!