GB3531 16MnDR steel material for low temperature pressure vessels

GB3531 16MnDR material is a steel plate for low temperature pressure vessels. It has good toughness and weldability.

16MnDR steel chemical composition(%)

Grade	C	Si	Mn	Ni	V	Nb	Al	P	S
16MnDR	≤0.20	0.15~0.50	1.20~1.60	≤0.40	—	—	≥0.020	≤0.020	≤0.010

16MnDR steel tensile requirement

Grade	Thick/mm	Tensile Strength Rm/MPa	Yield Strength ReL/MPa	Elongation A/%	Impact test temperature /°C	Shock absorption energy KV2/J
16MnDR	6-16	490-620	315	21	-40	47
	>16-36	470-600	295	21	-40	47
	>36-60	460-590	285	21	-40	47
	>60-100	450-580	275	21	-30	47
	>100-120	440-570	265	21	-30	47

16MnDR pressure vessel steel plate use: used in petroleum and chemical equipment deethanizers, CO2 absorption towers, medium-pressure flash towers.