NM400 Wear Resistant Plate

Product Introduction

Wuxi Jietai Machinery Trade Co., Ltd. is one of the most professional wear resistant steel plates manufacturers and suppliers in China. Welcome to wholesale customized wear resistant steel plates at competitive price from our factory. Good service and quality products are available.

Wear-resistant steel plates (AR steel) are hardened, alloyed steel plates designed to endure extreme abrasion, impact, and friction from materials like rock, coal, and ore, offering high hardness (400-600 HBW), strength, and toughness, significantly extending equipment life in mining, construction, and heavy industry by reducing maintenance and downtime. Key features include chromium, manganese, and nickel alloys, excellent machinability (cut/shaped), and applications in chutes, buckets, crushers, and conveyor systems.

Wear resistant steel plate (also known as abrasion resistant steel plate) is a type of high-strength, high-hardness steel produced through advanced alloy design and quenched & tempered (Q&T) heat treatment.

Its primary function is to resist:

• Sliding abrasion
• Impact wear
• Material erosion

Typical hardness ranges from 360 HB to 600 HB, depending on the grade.

International Popular Grades

Equivalent Standards

Chemical Composition (Typical Values, % by Weight)

The alloy composition is precisely adjusted to balance wear resistance and toughness:

• Carbon (C): 0.15-0.35% (enhances hardness and carbide formation)
• Manganese (Mn): 1.00-1.60% (improves hardenability and toughness)
• Chromium (Cr): 4.00-12.00% (forms hard chromium carbides for wear resistance)
• Silicon (Si): 0.30-0.80% (strengthens the matrix and improves oxidation resistance)
• Molybdenum (Mo): 0.20-0.60% (enhances hardenability and high-temperature stability)
• Nickel (Ni): 0.50-1.50% (improves low-temperature toughness and corrosion resistance)
• Phosphorus (P) ≤0.025%, Sulfur (S) ≤0.015% (strictly controlled to avoid brittleness)

Mechanical Properties (Grade: NM450 as Example)

International Standards and Certifications

• GB/T 24186-2009 (China): Wear-resistant steel plates for structure
• EN 10025-6:2004 (Europe): High-strength structural steel plates with specified minimum yield strength
• ASTM A514/A514M (USA): High-yield-strength quenched and tempered alloy steel plates
• JIS G3128 (Japan): Wear-resistant steel plates
• Certifications: ISO 9001, CE, SGS, BV (customizable based on customer requirements)

1. Wuxi Jietai Machinery Trade Co., Ltd. Core Product Grades

2. Comparison with International Famous Brands

Excellent wear resistance.

As the name suggests, wear-resistant steel has excellent wear resistance. The composite wear resistant alloy layer is generally 1/3~1/2 of the total thickness, with carbon content up to 4 ~ 5% and chromium content up to 25 ~ 30%. The metallographic volume of Cr7C3 carbide reaches more than 50%, it's the macroscopic hardness is HRC56-62 and the hardness of chromium carbide is HV1400 ~ 1800. Because carbides are vertically distributed in the wear direction, their wear resistance is more than doubled even when compared with casting alloys of the same composition and hardness.

Good impact resistance

The base layer of composite wear resistant steel plate is made of low carbon steel or low alloy steel plate, which can withstand the high load from medium and wear in the material conveying system.

Good heat resistance

The carbon steel base layer is recommended to be used at no more than 380℃, and the wear-resistant layer is no more than 600℃. Vanadium, molybdenum and other alloys added to the wear resistant layer can withstand≤800℃, for example, 15CrMo, 12Cr1MOV and other low-alloy steel plates are recommended not higher than 540℃ and heat resistant stainless steel substrate not higher than 800℃.

Good corrosion resistance

The alloy layer of wear-resisting composite steel plate contains highly chromium, which makes the plate more anti-rust and anti-corrosion, can be used in coal cylinder and funnel to prevent coal sticking.

Power plant:

Medium speed coal grinder barrel liner, fan impeller shell, dust catcher inlet flue, ash tube, bucket turbine liner, separator connection tube, coal crusher liner, coal hopper and crusher liner, burner, coal hopper and funnel liner, air preloader bracket shingle, separator guide blade.

Coal mining：

Lining of feeding trough and funnel, hopper bushing, fan blade, bottom plate of pusher, coke guide liner, ball mill lining, bit stabilizer, screw feeder bell and its base, lining of kneading machine bucket, ring feeder and bottom plate of a dump truck.

Cement plant: chute liner, end bushing, cyclone dust collector, powder separator blade and guide blade, fan blade and liner, recovery bucket liner, screw conveyor bottom plate, pipe assembly, frit cooling tray liner, conveyor chute liner, where require wear-resistant steel plates with 8-30mm thickness.

Construction machinery:

Loaders, bulldozers, excavators, rotary drilling RIGS and drill pipes need to be made of extremely hard and wear-resistant steel plates. The available materials are hardox 500/550/600 high-strength wear-resistant steel plates of 20-60mm thickness.

Loading machinery such as unloading mill chain plate, hopper lining board, grab blade board, automatic tipping truck tipping board, dump truck. It is recommended wear-resistant steel plate with a thickness of 25-45mm.

Mining machinery such as ore, stone crusher lining board, blade, conveyor lining board. The available material is HARDOX 500/600 wear-resistant steel plate with a thickness of 10-30mm.

Construction machinery such as cement pusher tooth plate, concrete mixing building, mixer lining board, dust remover lining board, brick machine die board. It is recommended wear resistant steel plates with a thickness of 10-30mm.

In addition, wear-resistant steel can also be used in sanding machine barrel, blades, as well as a variety of bearing structures, railway wheel structures and rollers.

Wuxi Jietai Machinery Trade Co., Ltd. supplies wear resistant steel plates with:

Thickness: 6–120 mm

Width: up to 3,500 mm

Grades: NM360 / NM400 / NM450 / NM500 / AR400 / AR500

Delivery condition: Quenched & Tempered (Q&T)

Inspection: EN 10204 3.1 / 3.2

Customized cutting and profiling services available

1. Key Factors to Consider

Wear Type: Choose AR360/AR400 for low-impact abrasive wear; AR450/AR500 for high-impact wear; AR600 for extreme abrasive wear.

Working Temperature: For environments above 250℃, select heat-resistant wear resistant steel plate (with added Mo, V elements); for low-temperature (-20℃ below) scenarios, prioritize grades with high toughness (e.g., AR450 with Ni addition).

Load and Impact: Higher impact loads require better toughness (e.g., excavator buckets need AR450 instead of AR600 to avoid fracture).

Processing Requirements: For complex bending or welding, choose grades with lower hardness (AR360/AR400) or preheat before processing.

2. Thickness Selection Principle

Thin plates (3mm-12mm): Suitable for light wear parts (conveyor belts, small hoppers)

Medium plates (12mm-30mm): General-purpose wear parts (excavator buckets, truck bodies)

Thick plates (30mm-150mm): Heavy-duty wear parts (crusher liners, mining equipment components)

Note: Thicker plates may require preheating during welding and cutting to ensure processing quality.

Professional Production Capacity: Equipped with advanced TMCP production lines and quenching-tempering heat treatment equipment, ensuring stable product quality and high precision.

Full Range of Products: Covers AR360-AR600 grades and various specifications, meeting diverse customer needs.

Cost-Effective Solution: Direct factory supply, no middlemen, providing competitive prices while ensuring product quality.

Global Service Network: Offers one-stop services including technical consultation, customized production, logistics and transportation, and after-sales support, ensuring timely delivery and efficient problem-solving.

Environmental Commitment: Adopts energy-saving and emission-reduction production processes, and all products meet environmental protection standards, supporting customers' sustainable development goals.

With outstanding abrasion resistance and high structural strength, wear resistant steel plate is an ideal material for equipment operating under extreme wear conditions. Backed by strict quality control and global supply experience, Wuxi Jietai Machinery Trade Co., Ltd. delivers reliable wear resistant steel plate solutions to customers worldwide.

If you want to learn more about Jietai's products, you can send an email to xingbaoln03@gmail.com. We are more than happy to assist you.

Q1: What hardness grade should I choose?

It depends on wear conditions. NM400 / AR400 is suitable for general abrasion, while NM500 / AR500 is recommended for severe wear.

Q2: Can wear resistant steel plate be welded?

Yes, with proper preheating and low-hydrogen electrodes.

Q3: Is higher hardness always better?

Not always. Higher hardness improves wear resistance but may reduce impact toughness. Selection should match operating conditions.

Q4: Does Wuxi Jietai Machinery Trade Co., Ltd. offer cut-to-size services?

Yes. Plates can be supplied cut, drilled, or shaped according to drawings.

Q5: What industries use wear resistant steel most?

Mining, construction, cement, steel plants, and bulk material handling industries.