15CrMoR(H) is a kind of pressure vessel steel plate, belonging to a temperature of hydrogen proof steel. The implementation standards of 15CrMoR (H) in accordance with the provisions of GB713, The technical conditions for the thickness of 8~60mm15CrMoR (H) steel plate production and inspection.

Chemical Composition For 15CrMoR(H) Pressure Vessel Steel

Grade	Chemical composition（mass fraction）/ %
	C	Si	Mn	Ni	Cr	Mo	P	S
15CrMoR(H)	0.12~0.18	0.15~0.40	0.40~0.70	≤0.020	0.8~1.20	0.45~0.60	≤0.010	≤0.010

 

Mechanical Property For 15CrMoR(H)  Pressure Vessel Steel

		value	Unit
Tensile Rm	Thickness ≤100mm	450~590	MPa
	>100~150mm	440~580
Tensile Rp0.2	Thickness ≤100mm	≥295	MPa
	>100~150mm	≥255
Tensile		≥19	%
Shrinkage of tensile section Z		≥45（Circular tensile test） ≥40（plate tensile test）	%
0 degrees C Charpy Notch (V)		average value ≥55	J
bending test		d=2a

Smelting method

The smelting process of electric furnace and vacuum degassing is adopted. Steel plate should be the essence of fine grain calm steel
Delivery status

The steel plate with normalizing + tempering (allowing accelerated cooling) delivery.

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