09MnNiDR steel plate material Introduction

09MnNiDR steel plate material Introduction

09MnNiDR is a commonly used cryogenic container steel plate in the chemical industry, due to the addition of nickel (Ni) element to the steel, so that the steel plate can still maintain high mechanical strength and toughness in the ultra-low temperature state. It is mainly used in cryogenic container equipment.

09MnNiDR is mainly produced in Wuyang Steel Mill, which implements the standard GB3531. 09 means that the C content is about 0.09%, Mn means that the Mn content is about 1%, Ni means that there are trace alloying elements, generally above 0.30 is considered an alloying element, it needs to be expressed, D means "low temperature", that is, the first letter of pinyin, R means "container", that is, the first letter of pinyin

Delivery status: normalizing, normalizing + tempering, other technical conditions can be attached according to customer requirements, and the flaw detection standards can meet the national standard of one, two and three explorations.

Chemical composition

 

trademark	C	Si	Mn	P	S	Ni	Cr	Mo	Cu	Nb
09MnNiDR	≤0.12	0.15-0.5	1.2-1.6	≤0.02	≤0.015	0.3-0.8	≤0.25	≤0.08	≤0.25	≤0.04

Mechanical properties

trademark	Delivery status	Steel plate thickness / mm	Tensile test			Impact test		Flexure test
			Tensile strength Rm, MPa	Yield strength	Elongation A/%	temperature	V-type impact energy	180°
								b=2a
09MnNiDR	Normalizing & normalizing + tempering	6～16	440～570	≥300	23	-70	-70	d=2a
		>16～36	430～560	280
		>36～60	430～560	270
		>60～120	420～550	260

Note:
Cr, Mo and Cu are residual elements; Trace amounts of V, Ti, Nb, B and RE elements are allowed; Alt can be used instead of Als, and Alt ≥ 0.02.
The data comes from the network and is for reference only.

09MnNiDR Applications

It is mainly used in the manufacture of petroleum and chemical equipment deethanization towers, CO2 absorption towers, medium-pressure flash towers, coolers, deethanization towers, reabsorption towers, compressor casings, propane cryogenic storage tanks, etc.