Description

Technical Parameters

Product Overview

NM 450 Wear Plate is a quenched wear-resistant steel plate with a nominal hardness of 450 HBW, designed for severe abrasive service. It offers high strength, good impact toughness, and excellent wear life for mining, quarrying, construction, cement, and material handling equipment.

Technical Specifications

Item	Specification
Product Grade	NM450
Standard	GB/T 24186 (NM Grade)
Delivery Condition	Q (Quenched) or Q.T. (Quenched & Tempered)
Thickness	3–80 mm
Width	1,000–3,500 mm
Length	2,000–12,000 mm
Thickness Tolerance	EN 10029 Class B (Closer tolerance available upon request)
Shape & Dimension Tolerance	EN 10029
Flatness	EN 10029 Class N, Type H
Surface Condition	EN 10163-2:2004 Class A, Subclass 1
Ultrasonic Testing	EN 10160:2004 Class S1E1 (Available)
Edge Type	Mill Edge (ME) / Trimmed Edge (TE)

chemical composition

Plate	C	Si	Mn	P	S	Cr	Ni	Mo	B	CEV	CET
Thickness mm	Max %	Max %	Max %	Max %	Max %	Max %	Max %	Max %	Max %	Typv	typv
3-(8)	0.19	0.7	1.6	0.025	0.01	0.25	0.25	0.25	0.004	0.41	0.30
8-20	0.21	0.7	1.6	0.025	0.01	0.50	0.25	0.25	0.004	0.47	0.34
(20)-40	0.23	0.7	1.6	0.025	0.01	1.00	0.25	0.25	0.004	0.57	0.37
(40)-50	0.23	0.7	1.6	0.025	0.01	1.40	0.25	0.60	0.004	0.59	0.36
(50)-80	0.26	0.7	1.6	0.025	0.01	1.40	1.00	0.60	0.004	0.72	0.41

mechanical properties

Grade	Mechanical Property			Charpy V Impact Test
Abrasion Resistant Steel NM 450	Yield	Tensile	Elongation	Degree	longitudinal
	Min Mpa	Mpa	Min %	-40	J
	1200	1400	10	-40	40

Key Benefits

450 HBW nominal hardness provides extended service life in high-abrasion environments, reducing replacement frequency.

High tensile strength up to 1,400 MPa improves structural reliability under heavy-duty operating conditions.

Good low-temperature impact toughness helps maintain performance in demanding outdoor applications.

Excellent weldability and machinability simplify fabrication while lowering processing costs.

Consistent hardness distribution supports stable product quality across large-volume procurement.

Typical Applications

Excavator buckets
Wheel loader buckets
Dump truck bodies
Mining crusher liners
Chutes and hoppers
Cement mixer liners

Processing Services

CNC Cutting - Precision flame, plasma, laser, or waterjet cutting to customer drawings.

Drilling - Accurate hole machining for direct equipment installation.

Beveling - Edge preparation for welding applications.

Bending/Forming - Cold forming within recommended processing parameters.

Welding Preparation - Surface cleaning and edge treatment before fabrication.

Marking & Identification - Heat number, dimensions, and customer markings available.

Quality Assurance

Production & Inspection Process

Raw material chemical composition verification

Steelmaking process monitoring

Heat treatment process control

Plate thickness measurement

Dimensional inspection

Surface quality inspection

Brinell hardness testing (HBW)

Tensile strength testing

Yield strength testing

Elongation testing

Charpy V-notch impact testing

Ultrasonic testing (UT)

Flatness inspection

Material traceability verification

Final inspection before shipment

nm8

Certifications

Certification	Meaning
ISO 9001:2015	Quality Management System
ISO 14001:2015	Environmental Management System
EN 10204 3.1	Mill Test Certificate issued by manufacturer
EN 10160	Ultrasonic testing standard for steel plates
EN 10029	Dimensional tolerance standard for hot rolled plates
EN 10163-2	Surface quality standard for hot rolled steel plates

Packaging & Shipping

Export Packing - Steel strips bundling with steel tags; seaworthy export packing.

Rust Protection - Anti-rust oil or temporary protective coating available upon request.

Plate Separation - Steel or wooden spacers used to prevent surface damage.

Loading Method - Container, bulk vessel, or break bulk shipment according to plate dimensions.

Identification - Each plate marked with grade, size, heat number, and production batch.

China abrasion resistant plate Suppliers

China abrasion resistant steel sheet Manufacturers

China abrasion plate Distributors

FAQ

Q: What is the difference between NM400, NM450, and NM500?

A: NM400 offers better formability, NM450 provides a balance of wear resistance and toughness, while NM500 delivers higher wear resistance for more severe abrasive environments.

Q: Can third-party inspection be arranged before shipment?

A: Yes. SGS, BV, TUV, LR, DNV, ABS and other third-party inspections can be arranged upon request.

Q: Can different sizes and grades be loaded in one container?

A: Yes. Mixed loading of different dimensions and wear plate grades is supported to improve container utilization.

Q: Do you keep NM450 plates in stock?

A: Yes. Common thicknesses are usually available in stock, while special sizes may require new production.

Q: What international steel grades are comparable to NM450?

A: Comparable wear-resistant grades include Hardox® 450, Dillidur 450V, Raex 450, XAR® 450, and other 450 HBW-class abrasion-resistant plates, subject to specification verification.

Q: What processing precautions should be considered?

A: To preserve the delivered mechanical properties, avoid prolonged exposure or preheating temperatures exceeding 250°C. Follow appropriate welding procedures and use recommended filler materials.

Q: What export documents do you provide?

A: Standard export documents include MTC (EN 10204 3.1), Commercial Invoice, Packing List, Bill of Lading, Certificate of Origin, and inspection certificates when required.

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