Material – BS A 3

Standard Specification for Carbon Steel; Railway Rolling Stock Materials

Group - Ferrous Mild Steel Alloys

Sub Group - BS A 3 Carbon Steel; Railway Rolling Stock Materials

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

Grade Belongs to the Industry - Casting

Chemical Composition
CarbonC %0.450 max.
SiliconSi %0.500 max.
ManganeseMn %1.000 max.
PhosphorusP %0.040 max.
SulphurS %0.040 max.
ChromiumCr %0.500 max.
NickelNi %0.300 max.
MolybdenumMo %0.400 max.
VanadiumV %0.100 max.
CopperCu %0.300 max.
IronFe %Balance
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Heat Treatment
Annealing or Normalising or Hardening + Tempering
Mechanical Properties
Tensile Strength in Mpa650 - 800
Yield Strength in Mpa420 min.
Elongation in %19 min.
Reduction of Area in %-
Hardness in BHN-
Impact in Joule-

Cross Reference Table

Material Standard Country Grade Belong to the Industry
J04002 UNS USA Casting
DIN 1.1190 DIN Germany Steel
1040 AISI USA Forging, Bar, Wire, and Shape
42CD4M AFNOR NF France Casting
A732 3Q ASTM USA Casting
A732 1Q ASTM USA Casting
A732 3A ASTM USA Casting