Introduction:

Abrasion resistant (AR) steel plate is a high-carbon alloy steel designed specifically to have greater hardness properties than low-carbon steel. Hardness typically comes at the expense of strength, making AR wear-resistant steel an ideal material for harsh, high-abrasion conditions, and not for structural applications.

Specification:

Chemical Composition (%) of NM Wear Resistant Steel

Steel Grade C Si Mn P S Cr Mo B N H Ceq
NM360/NM400 ≤0.20 ≤0.40 ≤1.50 ≤0.012 ≤0.005 ≤0.35 ≤0.30 ≤0.002 ≤0.005 ≤0.00025 ≤0.53
NM450 ≤0.22 ≤0.60 ≤1.50 ≤0.012 ≤0.005 ≤0.80 ≤0.30 ≤0.002 ≤0.005 ≤0.00025 ≤0.62
NM500 ≤0.30 ≤0.60 ≤1.00 ≤0.012 ≤0.002 ≤1.00 ≤0.30 ≤0.002 ≤0.005 ≤0.0002 ≤0.65
NM550 ≤0.35 ≤0.40 ≤1.20 ≤0.010 ≤0.002 ≤1.00 ≤0.30 ≤0.002 ≤0.0045 ≤0.0002 ≤0.72

Mechanical Properties of NM Wear Resistant Steel

Steel Grade Yield Strength /MPa Tensile Strength /MPa Elongation A50 /% Hardess (Brinell) HBW10/3000 Impact/J （-20℃）
NM360 ≥900 ≥1050 ≥12 320-390 ≥21
NM400 ≥950 ≥1200 ≥12 380-430 ≥21
NM450 ≥1050 ≥1250 ≥7 420-480 ≥21
NM500 ≥1100 ≥1350 ≥6 ≥470 ≥17
NM550 - - - ≥530 -

Abrasion Resistant Steel Plate Availability

Grade Thickness Width Length
AR200 / AR 235 3/16" – 3/4" 48" – 120" 96" – 480"
AR400F 3/16" – 4" 48" – 120" 96" – 480"
AR450F 3/16" – 2 " 48" – 96 " 96" – 480"
AR500 3/16" – 2 " 48" – 96 " 96" – 480"
AR600 3/16" – 3/4" 48" – 96 " 96" – 480"

Chemical Composition of Abrasion Resistant Steel Plate

Grade C Si Mn P S Cr Ni Mo B
AR500 0.30 0.7 1.70 0.025 0.015 1.00 0.70 0.50 0.005
AR450 0.26 0.7 1.70 0.025 0.015 1.00 0.70 0.50 0.005
AR400 0.25 0.7 1.70 0.025 0.015 1.50 0.70 0.50 0.005
AR300 0.18 0.7 1.70 0.025 0.015 1.50 0.40 0.50 0.005

Mechanical Properties of Abrasion Resistant Steel Plate

Grade Yield Strength MPa Tensile Strength MPa Elongation A Impact Strength Charpy V 20J Hardness Range
AR500 1250 1450 8 -30C 450-540
AR450 1200 1450 8 -40C 420-500
AR400 1000 1250 10 -40C 360-480
AR300 900 1000 11 -40C -

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