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NM600 Abrasion Resistant Steel Plate

570~640 HBW Quenched & Tempered Ultimate Wear Applications
Surface Hardness: 570 ~ 640 HBW

Chinese NM600 ultra-high strength abrasion resistant steel plate — engineered for extreme wear conditions in mining, quarrying, and heavy machinery. Meets GB/T 24186-2022 standard.

Maximum Service Life

570-640 HBW ultra-high hardness delivers exceptional wear resistance, 10-15x longer life than structural steel.

Ultra-High Hardness

Maximum hardness up to 640 HBW, superior abrasion resistance for most severe conditions.

Limited Workability

Cutting and welding with specialized procedures and preheating required.

Decoding the Grade: NM600

N 耐磨 – Wear / Abrasion resistant
M 磨 – Abrasion reinforced
600 Typical Brinell Hardness (HBW)

International Standards & Comparisons

🇨🇳

China (GB/T 24186)

NM600 / NM600D/E

Chemical Composition (wt%, max unless range):
C ≤0.45, Si ≤0.70, Mn ≤1.90, P ≤0.020, S ≤0.010,
Cr ≤1.60, Ni ≤2.00, Mo ≤0.80, Ti ≤0.05, B 0.0005-0.006, Als ≥0.010
Hardness: 570~640 HBW (≤60mm)
Tensile: By agreement
🇺🇸

USA (ASTM / AR Standard)

AR600 / AR600F

Typical Composition (wt%):
C 0.32-0.45, Si 0.20-0.60, Mn 0.70-1.60, P ≤0.025, S ≤0.010,
Cr 0.80-1.50, Ni ≤1.50, Mo 0.40-0.80, B 0.0005-0.005
Hardness: 570~640 HBW
🇩🇪

Germany (DILLINGER)

XAR® 600

Typical Composition (wt%):
C ≤0.42, Si ≤0.55, Mn ≤1.60, P ≤0.020, S ≤0.010,
Cr ≤1.5, Ni ≤1.5, Mo ≤0.8, B ≤0.005
Hardness: 570~640 HBW
🇸🇪

Sweden (SSAB)

Hardox® 600

Typical Composition (wt%):
C 0.30-0.42, Si ≤0.70, Mn ≤1.60, P ≤0.025, S ≤0.010,
Cr ≤1.5, Ni ≤1.5, Mo ≤0.8, B ≤0.005
Hardness: 570~640 HBW

Note: NM600 provides ultra-high hardness for extreme abrasion conditions. AR600/XAR600/Hardox600 are approximate commercial equivalents.

Domestic Grade Comparison (NM600 / NM600D / NM600E)

📋

NM600 (Standard)

Base Grade / Ultimate Wear Applications

Chemical Composition (wt%, max):
C ≤0.45, Si ≤0.70, Mn ≤1.90, P ≤0.020, S ≤0.010,
Cr ≤1.60, Ni ≤2.00, Mo ≤0.80, Ti ≤0.05, B 0.0005-0.006
Hardness: 570~640 HBW (≤60mm)
Tensile: By agreement
Impact: Not guaranteed
❄️

NM600D (Low Temperature)

D Grade / -20°C Impact Toughness

Chemical Composition (wt%, max):
C ≤0.45, Si ≤0.70, Mn ≤1.90, P ≤0.015, S ≤0.005,
Cr ≤1.60, Ni ≤2.00, Mo ≤0.80, Ti ≤0.05, B 0.0005-0.006, Als ≥0.015
Hardness: 570~640 HBW (≤60mm)
Tensile: By agreement
Impact: By agreement @ -20°C
CEV ≤0.84 (≤50mm) / ≤0.94 (>50mm)
🧊

NM600E (Extra Low Temperature)

E Grade / -40°C Impact Toughness

Chemical Composition (wt%, max):
C ≤0.45, Si ≤0.70, Mn ≤1.90, P ≤0.015, S ≤0.005,
Cr ≤1.60, Ni ≤2.00, Mo ≤0.80, Ti ≤0.05, B 0.0005-0.006, Als ≥0.015
Hardness: 570~640 HBW (≤60mm)
Tensile: By agreement
Impact: By agreement @ -40°C
CEV ≤0.84 (≤50mm) / ≤0.94 (>50mm)

According to GB/T 24186-2022, NM600D and NM600E are low-temperature impact grades. Impact values and tensile properties shall be agreed upon between supplier and buyer.

Why Choose NM600 Wear Plate?

Ultimate Abrasion Resistance

570-640 HBW maximum hardness delivers best-in-class wear resistance for extreme environments.

High Hardness Retention

Optimized heat treatment ensures uniform hardness distribution through thickness.

Specialized Fabrication

Cutting and welding with specialized procedures and preheating.

Typical Applications

Mining & Quarrying

Crusher liners, screen decks, chutes, hoppers, slurry lines, mill liners

Construction Equipment

Ground engaging tools, wear parts, extreme duty buckets

Heavy Transport

Mining truck bodies, heavy-duty dump truck liners

Material Handling

Conveyor chutes, transfer points, wear liners, slurry pipelines, cyclones

Customization Services

Cut-to-size / Precision cutting
Plasma / Waterjet cutting
Drilling / Machining
Surface treatment / Painting
Heat treatment (quenching & tempering)
Third-party inspection (SGS, BV)

Contact us for custom requirements — no minimum order restrictions for processing!

Available Stock Sizes

Thickness (mm) Width (mm) Length (mm) Stock Status
6 - 12 1500 - 2500 6000 - 12000 ✓ In Stock
14 - 25 2000 - 2800 8000 - 12000 ✓ In Stock
30 - 50 2000 - 3000 8000 - 12000 ✓ In Stock
55 - 60 2000 - 3000 6000 - 10000 Made to Order

Chemical Composition (GB/T 24186-2022)

Grade C Si Mn P S Cr Ni Mo Ti B Als
NM600 (max) ≤0.45 ≤0.70 ≤1.90 ≤0.020 ≤0.010 ≤1.60 ≤2.00 ≤0.80 ≤0.05 0.0005-0.006 ≥0.010
NM600D/E (max) ≤0.45 ≤0.70 ≤1.90 ≤0.015 ≤0.005 ≤1.60 ≤2.00 ≤0.80 ≤0.05 0.0005-0.006 ≥0.015

Mechanical Properties

Grade Thickness Tensile (MPa) Elongation % Impact (J) Hardness HBW
NM600 ≤60mm By agreement By agreement — 570~640
NM600D ≤60mm By agreement By agreement By agreement @ -20°C 570~640
NM600E ≤60mm By agreement By agreement By agreement @ -40°C 570~640
Note: Tensile, elongation and impact properties for NM600/NM600D/NM600E shall be agreed upon between supplier and buyer according to GB/T 24186-2022. Brinell hardness is guaranteed. Bending not applicable for NM600 grades (see Table 7).
Delivery: Quenched; Quenched + Tempered; TMCP + Tempered; or Hot Rolled (as agreed).

Technical FAQ

Welding methods?

SMAW, GMAW, FCAW. Preheat 250-300°C, low hydrogen practices. Consult specialized procedure.

Bending?

Not recommended. NM600 is not suitable for bending operations per GB/T 24186 Table 7.

Cutting methods?

Plasma, waterjet, abrasive cutting. Preheating required for laser cutting.

Hardness uniformity?

≤30mm uniform, 30-60mm slight core decrease within tolerance.

Max service temp?

Continuous ≤200°C, short peaks ≤250°C. Higher temps reduce hardness.

Impact properties?

D/E grade impact values by agreement. Consult supplier for specific requirements.

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MOQ: 5 tons
Stock: 30-35 days
Mill: 35-40 days