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What is hardox 500 plate ?
HARDOX 500 is an Abrasion Resistant Plate with a hardness of 500 HBW, intended for applications where demands are imposed on abrasion resistance in combination with good cold bending properties. HARDOX 500 offers very good weldability.
Supplementary Technology: Brinell hardness, HBW according to EN ISO 6506-1, on a milled surface 0,5–2 mm below plate surface per heat and 40 tons. Tests are made for every variation of 15 mm in the thickness of plates from the same heat.
Mechanical Properties
Grade | Thickness (mm) | Hardness 1) (HBW) | Typical yield strength (MPa), not guaranteed |
Hardox 500 sheet | 2.0- 6.5 | 470- 530 | 1400 |
Hardox 500 plate | 4.0- 32.0 | 470- 530 | 1400 |
Hardox 500 plate | 32.1- 103.0 | 450- 540 | 1400 |
1) Brinell hardness, HBW, according to EN ISO 6506-1, on a milled surface 0.5 – 3 mm below surface. At least one test specimen per heat and 40 tons.
The nominal thickness of supplied plates will not deviate more than +/- 15 mm from the thickness of the test specimen used for hardness testing.
Hardox plate is through-hardened. Minimum core hardness is 90 % of the guaranteed minimum surface hardness.
Impact Properties
Grade | Longitudinal test, typical impact energy, Charpy V 10x10 mm test specimen. |
Hardox 500 sheet & plate 1) | 37 J/-40 oC |
1) Impact toughness measured upon agreement. For thicknesses between 6 - 11.9 mm, subsize Charpy V-specimens are used. The specified toughness is then proportional to the cross-sectional area of the test specimen, compared to a full-size specimen (10 x 10 mm). Impact testing according to ISO EN 148. Average of three tests.
Chemical Composition (heat analysis)
Grade | C *) (max %) | Si *) (max %) | Mn *) (max %) | P (max %) | S (max %) | Cr *) (max %) | Ni *) (max %) | Mo *) (max %) | B *) (max %) |
Sheet | 0.27 | 0.50 | 1.60 | 0.025 | 0.010 | 1.20 | 0.25 | 0.25 | 0.005 |
Plate | 0.30 | 0.70 | 1.60 | 0.020 | 0.010 | 1.50 | 1.50 | 0.60 | 0.005 |
The steel is grain refined. *) Intentional alloying elements.
Carbon Equivalent CET(CEV)
Thickness (mm) | Sheet 2.0 - 6.5 | Plate 4.0 - 13.0 | Plate 13.1 - 19.9 | Plate 20.0 - 39.9 | Plate 40.0 - 103.0 |
Max CET(CEV) | 0.38 (0.49) | 0.38 (0.53) | 0.43 (0.64) | 0.45 (0.66) | 0.47 (0.75) |
Typ CET(CEV) | 0.33 (0.45) | 0.37 (0.51) | 0.41 (0.63) | 0.41 (0.63) | 0.43 (0.72) |