Grade F738M Class C4-50 416Se
USA UNS S41623
Corresponding Standard ASTM F738M-2002
Stainless Steel Metric Bolts, Screws, and Studs
Classification Martensitic Stainless Steel
F738M Class C4-50 416Se Chemical Element Composition Content (%)
Component C Si Mn P S Cr Se
Minimum Value - - - - - 12 0.15
Maximum Value 0.15 1 1.25 0.06 0.06 14 -
F738M Class C4-50 416Se Mechanical Properties
Heat Treatment or Condition
Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Hardness
HBW
M1.6~M5 A ≥500 HRB
≤85
M6~M36 A ≥500 ≥250 ≤85
• D-nominal thread diameter

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