No, NM500 and AR500 aren't exactly the same, but they are very similar abrasion-resistant (AR) steel grades, often interchangeable, differing mainly in their specific standards (Chinese GB vs. general AR) and slight proprietary formulations, with both providing similar high hardness (around 500 Brinell) and excellent wear resistance for demanding applications like mining and construction. Both are designed to resist abrasion, with their hardness level (500) being the key indicator, making them functionally equivalent for many general purposes.
NM450 Wear Resistant Steel
Chemical Composition (%) of NM450 Wear Resistant Steel:
| C | Si | Mn | P | S | Cr | Ni | Mo | Ti | B | ALs |
| 0.38 | 0.70 | 1.7 | 0.020 | 0.010 | 1.2 | 1.0 | 0.65 | 0.05 | 0.005- 0.006 | 0.010 min |
Mechanical Properties of NM450 Wear Resistant Steel:
| Property | Impact test | HBW | ||
| Yield Mpa Min | Tensile Mpa | Elongation | Min J |
Min 470 |
| Thickness mm | Thickness mm | Degree | ||
| <70mm | <=80mm | % | -20 | |
AR500 steel plate
Typical Chemical Composition of AR500
| Thickness | .125" - 4" |
| Carbon | 0.31 |
| Manganese | 0.95 |
| Phosphorus | 0.025 |
| Sulfur | 0.005 |
| Silicon | 0.65 |
| Chromium | 0.75 |
| Nickel | 1.00 |
| Molybdenum | 0.75 |
| Boron | 0.003 |
Typical Mechanical Properties of AR500
| Yield Strength | 200 ksi |
| Tensile Strength | 225 ksi |
| Elongation (% in 2") | 12% |
| *Tensile & yield testing is not standard, but available upon request. | |
Key Similarities
Hardness: Both target a Brinell hardness (BHN) of around 500 (typically 470-520 HBW for NM500, 470-530 BHN for AR500), offering superior abrasion resistance.
Composition: Both contain similar alloying elements (carbon, manganese, chromium) to achieve their hardness.
Applications: Used in similar heavy-duty scenarios, including dump truck liners, excavator buckets, chutes, and crushers.
Key Differences
Standards: NM500 often follows Chinese GB standards (like GB 24186), while AR500 is a more general designation.
Manufacturer-Specific: While aligning with the same hardness class, each steelmaker might have unique proprietary blends, leading to minor chemical and property variations.
Quick Verdict: When to Choose NM500 vs. AR500
Choose NM500 if: Your equipment faces combined abrasion and impact loads (e.g., excavator buckets, crusher hammers) or operates in moderate high-temperature environments. It also delivers better long-term ROI in industries like mining, cement, and steel manufacturing, thanks to longer service life and lower maintenance costs.
Choose AR500 if: You need ballistic protection (e.g., armor) or static wear solutions (e.g., non-impact conveyor liners). It is a cost-effective option for low-stress, low-impact applications where toughness is not a priority.
If you want to learn more about GNEE's products, you can send an email to info@gneesteels.com. We are more than happy to assist you.
| Other steel plate by GNEE | ||||
| Name | Material | Specification (mm) | Tons | Remark |
| Clad steel plate | P265GH+410,S355JR+410,A516Gr70+316, A537CL1+304L,Q235B+304L,Q345B+304, A516Gr70(NACE)+410,A537CL1+904L, A537CL1+316L,A516Gr70+304L,A537CL1+304 ,A516Gr70+410,A516Gr70+904L |
2-300mm(Based plate),1-50mm(Composited plate) | / | UT, AR, TMCP.Normalized, Quenched and Tempered,Z Direction Test, Charpy V-Notch impact TestThe Third Party Test , Coated or Shot Blasting and Painting. |
| Low Alloy | Q345A, Q345B, Q345C, Q345D, Q345E, Q390, Q420, Q460C, ST52-3, S355J2+N, SS400, SA302GrC, S275NL, 35CrMo | 6 - 350 | 5788.56 | Normalizing, tempered ,controlled rolling, hot rolling , Hot rolling,1st inspection, 2nd inspection, 3rd inspection |
| Pressure Vessel Plate | A204 Grade B,A515 Grade 70,A537 Class 1,SA387 Grade 11 Class 1,P265GH,S537 Class 2,P355Q,P275N,P355N,P690Q,Q345R, | 3 - 300 | 8650 | Normalizing, tempered ,controlled rolling, hot rolling , Hot rolling,1st inspection, 2nd inspection, 3rd inspection |
| High-Strength Plate | A514 Grade F, A572 Grade 50, A588 Grade A, S355JR, S690Q, SS400, S690QL, Q345B, Q345E | 8 - 120 | 3086.352 | Quenched and tempered |
| Wear-Resistant Plate | NM360, NM400, NM450, NM500 | 6 - 150 | 3866.297 | Quenched and tempered |
| Ship Plate | ABS AH32,ABS DH32,ABS EH32,ABS FH36,ASTM A131 A, ASTM A131 EH32,ASTM A131 AH36,CCS A,CCS AH32,LR AH32, DNV A36,BV AH32 |
8 - 200 | 2853.621 | Hot rolling, normalized ,hot rolling controlled rolling, quenched and tempered + toughness and brittleness |
