GB3531 low temperature boiler and pressure vessel steel 15MnNiDR plate

GB3531 low temperature boiler and pressure vessel steel 15MnNiDR plates shall be done low temperature impact test under minus 45 centigrade. The heat treatment can be normalized or normalized plus tempered when rolling.

GB3531 low temperature boiler and pressure vessel steel 15MnNiDR plate chemical composition (max):

C%	SI%	Mn%	Ni%	Mo%	V%	Nb%	Alt%	P%, max	S%, max
≤0.18	0.15-0.50	1.2-1.6	0.20-0.60		≤0.050		≥0.020	0.02	0.008

GB3531 low temperature boiler and pressure vessel steel 15MnNiDR plate mechanical property:

Thickness, in mm	Tensile Strength	Yield Strength, min	Elongation, %, min
6<T≤16	490-620	325	20
16<T≤36	480-610	315
36<T≤60	470-600	305

GB3531 low temperature boiler and pressure vessel steel 15MnNiDR plate application:
GB3531 low temperature boiler and pressure vessel steel 15MnNiDR plates are used to build boilers and pressure vessels such as petroleum, chemical industry, power plants.