Hardox 500 vs NM500 difference in composition & properties.
Carbon: NM500 ≤0.38% against Hardox 500 ≤0.3%.
Key differences between Hardox 500 and NM500
- Carbon: NM500 ≤0.38% against Hardox 500 ≤0.3%.
Hardox 500 vs NM500 chemical composition (weight %)
| Element | Hardox 500 | NM500 |
|---|---|---|
| C | ≤0.3 | ≤0.38 |
| Si | ≤0.4 | ≤0.7 |
| Mn | ≤1.3 | ≤1.7 |
| P | ≤0.02 | ≤0.02 |
| S | ≤0.01 | ≤0.01 |
| Cr | ≤2.2 | ≤1.5 |
| Ni | ≤2 | ≤1 |
| Mo | ≤0.4 | ≤0.65 |
| B | ≤0.005 | 0.001–0.006 |
| Ti | – | ≤0.05 |
| Al | – | ≥0.01 |
Mechanical properties, equivalents and uses
| Property | Hardox 500 | NM500 |
|---|---|---|
| Family | Abrasion-resistant steel plate | Abrasion-resistant steel plate |
| Tensile strength, MPa | – | ≥1350 |
| Yield strength, MPa | – | – |
| Elongation, % | – | ≥7 |
| Hardness | 470–530 HBW | 470–540 HBW |
| Density, g/cm³ | 7.85 | 7.85 |
| EN | Hardox® 500 (SSAB brand; no EN number) | Hardox 500 (SSAB, nearest) |
| JIS | JFE-EH500 / ABREX 500 (nearest) | – |
| IS (India) | IS 18809 ISAR 500 (nearest) · AM/NS Rockstar 500 · JSPL Rockhard 500 | IS 18809 ISAR 500 (nearest) · AM/NS Rockstar 500 · JSPL Rockhard 500 |
| AISI / ASTM | AR500 (nearest) | AR500 (nearest) |
| Typical uses | Mostly used for crusher and screen parts, buckets, cutting edges, shredder knives and high-wear liners | Mostly used for crusher parts, cutting edges and high-wear liners |
Mechanical values: Hardox 500 plate 4–32 mm (sheet 2–7 mm) / NM500 plate t ≤70 mm (surface; core 420–540). Limits vary by standard and product form; confirm against your purchase specification.
Frequently asked questions
What is the difference between Hardox 500 and NM500?
Carbon: NM500 ≤0.38% against Hardox 500 ≤0.3%.
Where are Hardox 500 and NM500 used?
Hardox 500: Mostly used for crusher and screen parts, buckets, cutting edges, shredder knives and high-wear liners. NM500: Mostly used for crusher parts, cutting edges and high-wear liners.
Can NM500 replace Hardox 500?
Only if the purchase specification allows it. Check the governing standard, chemistry limits and mechanical properties against the order, and confirm on the mill test certificate.
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Mill test certificate (EN 10204 3.1) supplied with material; third-party inspection on request.
Reference basis: Compiled by Steel Impex India. Check each table’s source, product form and delivery condition before use. Sources, calculation methods and corrections.