September 26, 2018

Carbon Steel 230-450

ISO3755, 230-450 230-450W Carbon Steel

Casting grades: 230-450 230-450W

Metal Type: Carbon Steels

Casting Process: Sand Casting or Lost Wax Precision Investment Casting

Standard: ISO 3755

Similar Grade: GBT11352 ZG230-450; ASTM A27 450-240; BS3100 AM2; DIN1681 GS45 JIS5101 SC450; ГОСТ 977 25Л

Heat treatment: Annealing, Quenching and Tempering

Steel GradeC %Mn  %Si %P %S %Ni  %Cr %Cu %Mo %V %
Steel GradeTensile Strength

Rm Mpa

Upper Yield  Re,  MpaElongation


Reduction of area

Z %

Impact Strength



1. Mechanical properties are obtained from 28mm thick standard test blocks.
2. The testing ambient temperature was take as 23 ±- 5°C degree

What’s the means “W” in ISO3755?

“W” means WELDABLE GRADE.  For example, 230-450 is non-weldable grade casting materiel, it’s choice of chemical composition shall be left to the discretion of the manufacturer.  But 230-450W is weldable grade, ISO 3755 standard indicate the detailed chemistry for welding purpose.

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