USA UNS S42226
Corresponding Standard ASTM A565/A565M-2010(R2017)
Martensitic Stainless Steel Bars for High-Temperature Service
Classification Martensitic Stainless Steel
Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Mo N W V Nb Al
Minimum Value 0.15 0.2 0.5 - - 10 0.3 0.8 0.04 - 0.15 0.35 -
Maximum Value 0.2 0.6 0.8 0.02 0.01 11.5 0.6 1.1 0.08 0.25 0.25 0.55 0.05
Mechanical Properties
Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
Reduction of Area
ψ
%
Hardness
HBW
Impact Energy Absorption
KV2
J
HT - Heat treated (for high-temperature service) ≥965 ≥690 ≥15 ≥45 ≤321 ≥11
Annealed ≤302

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