ASTM A516 grade 55 steel plate chemical and mechanical property

ASTM A516 grade 55 steel plate is mainly used in moderate and lower temperature pressure vessels, which is decided by ASTM A516 grade 55 steel plate chemical composition and its welding property.

ASTM A516 grade 55 steel plate Chemical Composition:

Grade	The Element Max (%)
A516 grade 55	C	Si	Mn	P	S
Thick <12.5mm	0.24	0.13-0.45	0.79-1.30	0.035	0.035
Thick12.5-50mm	0.26	0.13-0.45	0.79-1.30	0.035	0.035
Thick50-100mm	0.28	0.13-0.45	0.79-1.30	0.035	0.035
Thick100-200mm	0.29	0.13-0.45	0.79-1.30	0.035	0.035
Thick>200mm	0.29	0.13-0.45	0.79-1.30	0.035	0.035

Carbon Equivalent: Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%

ASTM A516 grade 55 steel plate Mechanical Property:

Grade	Thickness(mm)	Min Yield (Mpa)	Tensile(MPa)	Elongation(%)
A516 grade 55	6mm-40mm	205Mpa	380-515Mpa	27%
	40mm-100mm	205Mpa	380-515Mpa	23%
The min impact energy is longitudinal energy

The ASTM A516 grade 55 steel plate mechanical property such as tensile strength, yield strength, and elongation shall be determined by a tension test for the A516 grade 55 plate. With excellent notch toughness and weldability, ASTM A516 grade 55 steel plate is suitable for large fabricators service in oil and gas plants.