NM550 Wear Resistant Steel Alloy
NM550 Wear Resistant Steel Alloy
NM550 Wear Resistant Steel Alloy
NM550 Wear Resistant Steel Alloy

NM550 Wear Resistant Steel Alloy

M550 steel plate chemical composition and alloy element introduction
Carbon C<=0.25
Si<=0.70
Mn<=1.60
P <=0.025
S<=0.010
Mo<=0.50
Cr<=1.40.
B <=0.004

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Product Introduction

NM550 Wear Resistant Steel Alloy

NM550 belongs to domestic wear-resistant steel plate, NM550 steel plate implementation standard: GB/T24186 special technical conditions.

GB= National standard in NM550 steel plate standard

T= recommended in the NM550 steel plate standard

NM550 steel plate standard 24186= Steel plate execution standard number

The NM board series has a total of six brands: NM360, NM400, NM450, NM500, NM550, NM600

NM550 is a representative of high strength structural steel plate. This steel plate has extremely high strength and toughness, and its hardness is very high, so it can be used in a variety of harsh conditions for a long time, including some extreme environmental conditions NM550 steel is a very strong and durable material that can be applied in a variety of harsh environments.

Chemical Content
Steel/Grade	C	Si	Mn	P	S	AL	Cr+Ni+Mo	Nb+V+Ti
NM360/AR360	0.10-0.30	0.20-0.40	1.00-2.00	≤0.015	≤0.003	≥0.20	<0.6	Trace Amount
NM400/AR400	0.10-0.40	0.20-0.40	1.00-2.00	≤0.015	≤0.003	≥0.20	<0.9
NM450/AR450	0.10-0.40	0.20-0.40	1.00-2.00	≤0.015	≤0.003	≥0.20	<1.2
NM500/AR500	0.10-0.40	0.20-0.45	1.00-2.00	≤0.015	≤0.003	≥0.20	<1.5
NM550/AR550	0.10-0.50	0.20-0.45	1.00-1.50	≤0.015	≤0.003	≥0.20	<2.0
NM600/AR600	0.10-0.50	0.20-0.45	1.00-1.50	≤0.015	≤0.003	≥0.20	<2.5

Mechanical property
Grade	Tensile strength	Elongation	Hardness	-20ºC Impact energy
Grade	(Mpa)	(%)(min)	(HBW)	AKv/J (min)
NM360	≥1100	12	330-390	24
NM400	≥1200	10	370-430	24
NM450	≥1250	7	420-480	24