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Home Material ASTM A276/A276M-2017
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USA UNS S44003
ASTM
Specification or Grade		 440B
Corresponding Standard ASTM A276/A276M-2017
Standard Specification for Stainless Steel Bars and Shapes
Classification Martensitic Stainless Steel
Chemical Element Composition Content (%)
Component C Si Mn P S Cr Mo
Minimum Value 0.75 - - - - 16 -
Maximum Value 0.95 1 1 0.04 0.03 18 0.75
Mechanical Properties
Heat Treatment or Condition
Hardness
HBW
Hot rolled Annealing (A) ≤269
Cold rolled Annealing (A) ≤285
1 Approximate Comparison Table Martensitic Stainless Steel
China Taiwan, China Japan South Korea United States
GB ISC CNS JIS KS ASTM UNS
85Cr17
(8Cr17) 		S44080 440B SUS 440B STS 440B 440B S44003
2 Approximate Comparison Table Martensitic Stainless Steel
China Japan South Korea United States Germany France European Standard
GB ISC JIS KS ASTM/AISI UNS DIN EN/DIN NF EN/NF EN Numerical Grade
90Cr18MoV
(9Cr18MoV) 		S46990 SUS 440B STS 440B 440B S44003 X90CrMoV 18 Z6CND17.12 X90CrMoV 18 1.4112
3 Approximate Comparison Table Plastic Mold Steel
China Japan United States Germany
GB ISC JIS ASTM UNS DIN EN/DIN W-Nr.
9Cr18MoV T46993 SUS 440B 440B S44003 X90CrMoV 18 1.4112
4 Approximate Comparison Table Martensitic Stainless Steel
China Japan United States International Organization for Standardization European Standard
ISC JIS UNS ISO Numerical Grade Numerical Grade
S44080 SUS440B S44003 X85Cr17 4041-440-03-X (1.4041)

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