Steel Glossary
Hardox 500
Highly wear-resistant, hardened steel for versatile applications in mechanical engineering. As an advancement of Hardox 450, it is even more resistant to abrasive wear. Hardox 500 can also be formed by bending and is easily weldable.
Round material made of Hardox 500 offers very high strength and convincing toughness. The high strength makes Hardox 500 an excellent choice for high-strength components in various mechanical engineering applications. The high hardness enables very wear-resistant applications, such as in excavator bucket liners. Moreover, precision parts in mechanical engineering benefit from its high hardness and toughness.
Gebrüder Recknagel is an official sales and service partner of the Swedish manufacturer SSAB's Hardox Wearparts Center.
Typical Properties
| Hardox 500 | Typical Properties* |
|---|---|
| Hardness (HBW) | 470 - 530 |
| Toughness KBZ (J) | Min 27 (@ -40°C) |
| Typical Yield Strength (MPa) | 1,200 |
| Typical Tensile Strength (MPa) | 1,700 |
| Typical Elongation (A5,%) | 12 |
| Typical max CET | 0.51 |
* This product is under development, and the data in this table represent typical values based on the limited available measurements.
Diameter
Diameters range from 30 - 160mm. All diameter tolerances comply with DIN EN 10060 or SSAB specifications.
| Diameter Tolerances | |
|---|---|
| ∅ (mm) | rolled |
| 20 ≤ 75 | EN 10060 |
| > 75 - 160 | SSAB Specification |
| Diameter ∅ (mm) |
Tolerances, rolled surface (mm) | |
|---|---|---|
| Min | Max | |
| 26.0 - 35.0 | - 0.60 | + 0.60 |
| 36.0 - 50.0 | - 0.80 | + 0.80 |
| 52.0 - 80.0 | - 1.00 | + 1.00 |
| 76.0 - 115.0 | - 0.00 | + 3.50 |
| 116.0 - 160.0 | - 0.00 | + 3.00 |
According to EN 10060 for ∅ ≤ 75mm.
SSAB Specification for
∅ ≥ 76 - 160mm.
Straightness
Tolerances according to EN 10060. The maximum permissible deviation is 2mm/m when measured using a calibrated measuring device over 1 meter.
Length
The tolerance for rolled production lengths (approximately 5,000mm) according to EN 10060 is -0mm / +200mm. Any section lengths are available as VarioRond, with a length tolerance of -0mm / +3mm for sawn pieces.
Surface
The surface corresponds to EN 10221 Class C for ∅ ≤ 75mm. For bars with ∅ > 120mm, the maximum depth of surface discontinuities is 0.0075 x ∅ [mm].
Testing
The bar hardness is measured on a milled surface, with indentations positioned for Charpy impact testing
according to EN 10083.
Charpy-V-notch impact toughness testing positioning according to
EN 10083.
Roundness
Tolerances for rolled and peeled bars according to EN 10060 mean that the roundness deviation must not exceed 75% of the diameter tolerance range according to EN 10060.
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