Grade 170H41
Corresponding Standard BS 970-1-1983
British Standard Specification for Wrough steels for mechanical and allied engineering purposes Part 1. General inspection and testing procedures and specific requirements for carbon,carbon manganese,alloy and stainless steels
Classification Alloy Steel
Properties Machinability
170H41 Chemical Element Composition Content (%)
Component C Mn P S Cr Ni Mo B *
Minimum Value 0.37 0.8 - 0.015 - - - 0.0005
Maximum Value 0.44 1.1 0.025 0.04 0.3 0.4 0.15 0.005
• For older grades of stainless steel, see Table 2 of standard BS 970-4-1970
1 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
2 Approximate Comparison Table Structural Alloy Steel
France European Standard United Kingdom
NF EN/NF EN Numerical Grade BS EN/BS
38MB5 38MB5 1.5532 170H41

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