Grade SNB5
Corresponding Standard JIS G 4107-2007
Alloy Steel Bolting Materials for High Temperature Service
Classification Alloy Steel
SNB5 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Mo
Minimum Value - - - - - 4 0.4
Maximum Value 0.1 1 1 0.04 0.03 6 0.65
SNB5 Mechanical Properties
condition Heat Treatment or Condition
Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
Reduction of Area
ψ
%
Bar, Wire rod, Bolt; d≤100 Normalizing + Tempering or Quenching + Tempering ≥690 ≥550 ≥16 ≥50
Approximate Comparison Table Structural Alloy Steel
Japan United States
JIS ASTM AISI
SNB5 A193 B5 501

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