Grade 50B44
USA UNS G50441
Corresponding Standard ASTM A29/A29M-2005
General Requirements for Steel Bars, Carbon and Alloy, Hot-Wrought
Classification Alloy Steel
50B44 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Cu B Al
Minimum Value 0.43 0.15 0.75 - - 0.2 - 0.0005 -
Maximum Value 0.48 0.35 1 0.025 0.025 0.6 0.3 0.003 0.05
Approximate Comparison Table Structural Alloy Steel
China United States France United Kingdom
GB ISC ASTM/AISI UNS NF EN/NF BS EN/BS
40B
45B
40MnB
A70402
A70452
A71402
50B44
81B45
G50441
G81451
-
-
38MB5
170H41
-
185H40

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