Grade 416S37
Old Grade
Corresponding Standard BS 970-4-1970
Specification for Wrought steels in the form of blooms,billets,bars and forgings--Part 4:Valve steels
Classification Martensitic Stainless Steel
416S37 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu Mo
Minimum Value 0.2 - - - 0.15 12 - - -
Maximum Value 0.28 1 1.5 0.04 0.3 14 1 0.3 0.6
416S37 Mechanical Properties
condition Heat Treatment or Condition
Tensile Strength
σb
Mpa
Specified Plastic Yield Strength
Rp0.2
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
Hardness
HBW
Impact Energy Absorption
KV2
J
Steel, section≤152.4mm Hardened + tempered (R) 696~853 ≥490 ≥529 ≥11 201~255 Izod: ≥20ft·lbf
Steell, section≤152.4mm Hardened + tempered (S) 774~921 ≥559 ≥588 ≥10 223~277 Izod: ≥10ft·lbf
• The letters P, R, S and T in the table indicate the range of tensile strength of quenched and tempered steels.
• When supplied in the softened condition the hardness shall be 229 HB max.
416S37 Corresponding Standards(Same grade name, different standards)

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