Wear Resistant Steel Plate NM500
Wear Resistant Steel Plate NM500
Wear Resistant Steel Plate NM500
Wear Resistant Steel Plate NM500

Wear Resistant Steel Plate NM500

Naming :N is the first pinyin letter of "resistant" in "wear-resistant".
M is the first pinyin letter for "wear" in "wear".
500 is the Brinell Hardness number HB value. (500 hardness value is a broad sense, the domestic NM500 hardness value is about 500.)
NM500 wear-resistant steel plate is widely used in engineering machinery, environmental protection machinery, metallurgical machinery, abrasive tools, bearings and other product parts.

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Product Introduction

wear resistant steel plate NM500

Introduction to the use of flaw detection

Ultrasonic flaw detection is mainly used for internal flaw detection below the surface of parts, generally used for machining parts with higher requirements, and the identification requirements for defects are higher, requiring trained specialized personnel. Operation experience high technical requirements, high requirements for workpiece surface roughness, large equipment investment.

Magnetic particle inspection mainly investigates the defects in the surface depth of 3mm. It is used for flaw detection of magnetic conductive materials, with low cost, low requirements for product surface roughness, and high value of flaw detection equipment (compared with penetration detection). It is often used for routine process inspection and mass inspection of products. When the requirements are high, the fluorescent magnetic particle can also be used to detect the flaw, and the inspection is convenient.

Penetration detection can be used for non-magnetic materials, easy to operate, easy to carry. Toxic, flammable and explosive. It is generally used for complex parts on the surface of the product, and the measured area is small. For example, when welding seams are repaired, PT is commonly used to check whether the cracks are worn clean.

Chemical composition

ingredient	C	Si	Mn	P	S	Cr	Mo	Ni	Bt	CEV
nm500	≤0.38	≤0.70	≤1.70	≤0.020	≤0.010	≤1.20	≤0.65	≤1.00	0.005-0.006	0.65
nm500	130	2	7	7	6	1	7	5	1

Mechanical property

mark	thickness	strength of extension	ductility	—20℃Impact work (longitudinal）AKV/J	Brinell HardnessHBW	cold bend
NM500	6～60	—	—	≥24	480～525	Sample width B=30MM bending Angle 180° Bending center diameter dw4n