Grade XM-16
USA UNS S45500
Corresponding Standard ASTM A564/A564M-2019(a)
Standard Specification for Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes
Classification Precipitation-Hardening Stainless Steel
Properties Corrosion Resistance
XM-16 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu Mo Ti Nb
Minimum Value - - - - - 11 7.5 1.5 - 0.9 0.1
Maximum Value 0.03 0.5 0.5 0.015 0.015 12.5 9.5 2.5 0.5 1.4 0.5
XM-16 Mechanical Properties
condition Heat Treatment or Condition
Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
Reduction of Area
ψ
%
Hardness
HBW
Bars, Profiles Solution Treatment (A) HB: ≤331
HRC: ≤36
Bar, Section; t≤150; Longitudinal H900 ≥1620 ≥1515 ≥8 ≥30 HRC: ≥47
HB: ≥444
Bar, Section; t≤150; Longitudinal H950 ≥1515 ≥1415 ≥10 ≥40 HRC: ≥44
HB: ≥415
Bar, Section; t≤150; Longitudinal H1000 ≥1415 ≥1275 ≥10 ≥40 HRC: ≥40
HB: ≥363
Approximate Comparison Table
China United States
GB ISC ASTM UNS
022Cr12Ni9Cu2NbTi
GB/T 20878-2024
S51290 XM-16
ASTM A959
S45500

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