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What is the difference between RMRS grade D steel plate and ABS Gr D plate

What is the difference between RMRS grade D steel plate and ABS Gr D plate? Actually, the  Chemical Composition and mechanical properties of RMRS grade D steel plate and ABS Gr D plate are totally same. The only difference is the certified classification society is different. One is by Russia classification society RMRS, and the other is by American classification society ABS. On the market, RMRS grade D steel plate is less popular than ABS Gr D plate.

RMRS grade D steel plate chemical composition:

RMRS grade D steel plate mechanical properties:

RMRS grade D steel plate is common strength steel for hull constructions. Its low temperature impacting test shall be done under minus 20 centi degree. RMRS grade D steel plate is mainly used in shipbuilding project and ocean offshore structural project.