Description

Technical Parameters

Product Overview

NM550 Wear Resistant Sheet is a high-hardness abrasion resistant steel sheet manufactured to GB/T 24186. It offers excellent wear resistance, making it suitable for mining, quarrying, cement, and heavy construction equipment.

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Grinding Polishing

Cutting

Beveling

Forming

Maching

Auto Welding

Heat treatment

Painting

Engineering Services

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Steel Plate Leveling Machine

Technical Specifications

Item	Specification
Product Grade	NM550
Standard	GB/T 24186
Hardness	530–580 HBW (Typical)
Available Thickness	6–80 mm (custom up to 120 mm available)
Available Width	1,500–3,000 mm
Available Length	3,000–12,000 mm
Delivery Condition	Quenched & Tempered (Q&T); Normalized + Tempered or customized upon request
Edge Type	Mill Edge (ME), Trimmed Edge (TE), Cut Edge
Surface Condition	Shot Blasted, As Rolled, Oiled, or Painted upon request
Flatness	According to GB/T 709 or customer specification

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Chemical Composition

Chemical Composition	Steel plate	C	Si	Mn	P	S	Cr	Ni
	Thickness	%	%	%	%	%	%	%
	2-120mm	0.30-0.37	0.2-0.405	0.40-1.60	0.010-0.020	0.005-0.010	0.30-0.80	0.002-0.60

Mechanical Properties

Hardness	520-580HB
Mechanical Properties	10mm thickness steel plate typical value	Yield Strength	Tensile Strength		Elongation
		Re	Rm		A5
		Mpa	Mpa		%
		>1300	>1550		6
Impact Toughness	10mm thickness steel plate typical value	Test		Impact test
		Temperature		Charpy-V Longitudinal
		ºC		J
		-20		12

Key Benefits

530–580 HBW hardness provides longer service life in extremely abrasive operating conditions.

High strength reduces plate deformation under heavy impact and abrasive loading.

Excellent wear resistance lowers replacement frequency and overall maintenance costs.

Good fabrication capability supports cutting, machining, drilling, and controlled welding for efficient production.

Available in custom dimensions minimizes material waste and simplifies downstream processing.

Steel plate rolling

steel plate rolling services

Press Brake Forming

Steel Plate Rolling

Typical Applications

Excavator bucket liners
Mining dump truck bodies
Crusher liners
Chute liners
Hopper liners
Cement mixer wear plates

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Groove cutting robot

groove cutting machine

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V-type, Y-type, X-type and U-type grooves

Processing Services

Plasma Cutting – Precision cutting for standard or custom profiles.

Laser Cutting – High-accuracy cutting for complex components.

Flame Cutting – Suitable for thick wear resistant plates.

Waterjet Cutting – Cold cutting without heat-affected zones.

CNC Drilling – Accurate hole machining for assembly requirements.

Beveling – Edge preparation for welding applications.

Bending – Forming within recommended bending parameters.

China Steel Armor Plate Suppliers

China Ballistic Steel Armor Plate Manufacturers

Quality Assurance

Inspection Process

Raw Material Chemical Composition Analysis

Spectrometer Verification

Plate Thickness Inspection

Width and Length Dimensional Inspection

Surface Quality Inspection

Hardness Test (Brinell HBW)

Tensile Strength Test

Yield Strength Test

Elongation Test

Charpy V-Notch Impact Test

Ultrasonic Testing (UT)

Flatness Inspection

Identification and Traceability Verification

Final Visual Inspection Before Shipment

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Certifications

Certification	Description
ISO 9001:2000	Quality Management System
ISO 14001:2004	Environmental Management System
EN 10204 3.1	Mill Test Certificate issued by manufacturer
SGS Inspection	Independent third-party inspection upon request
BV Inspection	Bureau Veritas inspection service
TÜV Inspection	Third-party product verification
ABS Material Inspection	Available for applicable projects upon request

Packaging & Shipping

Export Packing – Steel strips, protective wrapping, wooden supports, and export-grade bundles.

Rust Protection – Light anti-rust oil or waterproof packaging available for long-distance transportation.

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

Loading Method – Steel wire lifting or nylon slings with edge protection to prevent surface damage.

Container Options – 20GP, 40GP, 40HQ, break bulk, or bulk vessel depending on dimensions.

Shipping Method – Sea freight, rail freight, multimodal transport, or air freight for samples.

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steel plate for 100,000 m³ ammonia storage tank

FAQ

Q: How does NM550 compare with NM500?

A: NM550 offers higher hardness and better wear resistance, while NM500 generally provides better toughness and is preferred for applications with higher impact loads.

Q: Can NM550 be welded?

A: Yes. Recommended practices include 150–250°C preheating, low-hydrogen electrodes, and controlled cooling to reduce cracking risk.

Q: Can different plate sizes be loaded in one container?

A: Yes. Mixed thicknesses, widths, and lengths can be consolidated into one shipment when logistics allow.

Q: Which Incoterms do you support?

A: FOB, CFR, CIF, FCA, EXW, and DDP can be arranged according to the order requirements.

Q: What payment terms are available?

A: Standard terms are 30% T/T deposit and 70% balance before shipment. L/C at sight is also available for qualified orders.

Q: What export documents can you provide?

A: Typical documents include Commercial Invoice, Packing List, Bill of Lading, Mill Test Certificate (EN 10204 3.1), Certificate of Origin, and third-party inspection reports when requested.

Q: What after-sales support do you provide?

A: We provide technical consultation, material traceability, quality issue investigation, replacement support for verified manufacturing defects, and prompt assistance throughout the procurement process.

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