GB3531 06Ni9DR Steel is a kind of Low Temperature Pressure Vessel Plate, generally called the 9Ni or 9 nickel steel. It is equivalents to SA553, SA353, 9Ni. 06Ni9DR Steel plate with off-line quenching + tempering heat treatment as the state delivery.

In order to improve the toughness of steel, can also enter the second quenching. On the thickness of not more than 12mm of the plate can also be twice normalizing and tempering delivery, The tempering temperature of the steel plate is not lower than 540 ° C

 

GB3531 06Ni9DR  Chemical Composition Analysis

Grade	Chemical composition analysis/%
	C	Si	Mn	Ni	P	S
06Ni9DR	≤0.08	0.15~0.35	0.3~0.8	8.5~10.0	≤0.008	≤0.004

To improve the properties of the steel, other microalloying elements may be added.
Cr + Cu + Mo in steel should not exceed 0.50%

GB3531 06Ni9DR Mechanical Property Analysis

Grade	Delivery status	Thickness mm	Tensile Test			Impact Test		Bend test
			tensile strength (Mpa)	Yield strength (Mpa）≥	ElongationA %	temperature ℃	Shock absorbing energy J	180°b=2a
06Ni9DR	Q+T	5~30	680~820	560	18	-196	100	D=3a
		30~50		550

Product size we mainly supply: 6~150*1600~4100*L

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