Material – BS 3100 Grade B4

Standard Specification for Steel Castings for General Engineering Purposes

Group - Ferrous Mild Steel Alloys

Sub Group - BS 3100 Grade B4 Steel Castings for General Engineering Purposes

Application - Intended for Valve, Pump, General Engineering, Automotive and Other Industries

Grade Belongs to the Industry - Casting

Chemical Composition
CarbonC %0.250 max.
SiliconSi %0.750 max.
ManganeseMn %0.300 - 0.700
PhosphorusP %0.040 max.
SulphurS %0.040 max.
ChromiumCr %2.500 - 3.500
MolybdenumMo %0.350 - 0.600
NickelNi %0.400 max.
CopperCu %0.300 max.
IronFe %Balance
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Heat Treatment
As Cast or Annealing or Normalizing or Hardening and Tempering
Mechanical Properties
Tensile Strength in Mpa620 min.
Yield Strength in Mpa370 min.
Elongation in %13 min.
Reduction of Area in %-
Hardness in BHN-
Impact in Joule25 J @ RT

Cross Reference Table

Material Standard Country Grade Belong to the Industry
2074/H2A AS Australia Casting
629 BS British Casting
B6 BS British Casting
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