Hardox® 600
Hardox® 600, with a nominal hardness of 600 HBW, is an extra-hard wear resistant steel that can be cut and welded. It is designed for use in high-performing wear parts in harsh wear environments.
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Hardox® 600, with a nominal hardness of 600 HBW, is an extra-hard wear resistant steel that can be cut and welded. It is designed for use in high-performing wear parts in harsh wear environments.
Get technical adviceDownload data sheet
With Hardox® 600, you don’t have to sacrifice wear resistance for impact strength. Thanks to its properties, this steel can withstand impacts that often lead to fracture or destruction of other wear parts made in white iron chromium castings, manganese castings, bimetals or ceramics. Hardox® 600 has an impact toughness that can make it more durable than those materials. It also successfully fights sliding wear. Want to learn if Hardox® 600 is right for your particular application?
A little extra hardness can go a long way. At the high end on the hardness scale for our Hardox® range of grades, Hardox® 600 can give your equipment the extra edge in service life in applications that take a beating. Hardox® 600 has a yield strength around 1650 MPa, much higher than for standard structural steels like S355 steel, which has a yield strength of about 355 MPa.
If you upgrade from a lower Hardox® grade like Hardox® 500, you can gain up to a 50% longer equipment service life. When upgrading from a 400 HBW AR steel, you can get a service life up to 4 times longer. If you do opt for using a lower-grade material, remember that you might be looking at higher production, replacement and downtime costs in the long run.
Used in recycling plastic, electronic waste and aluminium, prismatic knives in Hardox® 600 will extend service life. The toughness of Hardox® 600 will reduce the risk for chipping compared to tool steel, providing a more reliable solution.
The high hardness of Hardox® 600 offers very high wear resistance in combination with the possibility to drill, countersink or even stud weld bolts to the steel. This makes Hardox® 600 an easy solution compared to HCWI casted material or chromium carbide solutions.
Concrete molds for concrete or terracotta pavers made of Hardox® 600 extend service life many times compared to the previous 500 HBW steel. Extends lifetime from 4-8 weeks to an entire 6-12 months.
A transfer chute with liner plates in Hardox® 600 provides a long service life when moving iron ore and other highly abrasive materials. Compared to an AR 500 steel, Hardox® 600 can double the lifetime.
Learn how mining and materials company LKAB benefits from the superior wear resistance of Hardox® 600.
With the Hardox® WearCalc app from SSAB, you can determine the increase in service life of equipment for different Hardox® grades compared to mild steel. Calculations include a lot of abrasive materials such as granite, clinker, coal, iron ore, limestone, sand, glass and household waste containing metal.
Hardox® 600 is available as plate in thicknesses of 0.118 - 2.559" and as sheet in thicknesses of 0.118 - 0.197", . Hardox 600 is available in widths up to 78.740" and lengths up to 575.984". Preferred dimensions for the plates are 78.740 x 157.480" and for the sheets the preferred dimensions are 49.212 x 118.110" or 59.055 x 118.110" depending on thickness. Other dimensons on request. More detailed information on dimensions is provided in the dimension program.
1) Brinell hardness, HBW, according to EN ISO 6506-1, on a milled surface 0.019 – 0.118" below surface. At least one test specimen per heat and 40 tonnes. The nominal thickness of supplied plates will not deviate more than +/- 0.590" from the thickness of the test specimen used for hardness testing. For sheet the Brinell hardness test is according to EN ISO 6506-1 on each heat treatment individual/coil. Hardness is measured on a milled surface 0.012 - 0.079" below surface.
Tolerances according to Hardox® Thickness Guarantee.
Hardox® Guarantees meet the requirements of EN 10029 Class A for plate, but offer more narrow tolerances. For sheets the guarantees meets the requirements of 1/2 EN 10051.
According to SSAB’s dimensions program. Tolerances conforms to EN 10029 or to SSAB’s standard after agreement. For sheet the tolerances are according to EN 10051 or to SSAB´s standard after agreement.
Tolerances according to EN 10029 for plate and according to EN 10051 for sheet.
Tolerances according to Hardox® Flatness Guarantee class D, which are more restrictive than EN 10029 Class N. For sheet, the tolerances are according to Hardox® Flatness Guarantees Class B, which are more restrictive than EN 10051.
According to EN 10163-2 Class A, Subclass 1.
The delivery condition is Quenched or Quenched and Tempered. Plates are delivered with sheared or thermally cut edges and thicknesses over 3.150" are delivered with mill edge as standard. Sheets are delivered with an as-rolled surface and mill edge as standard.
Welding, bending and machining
Recommendations can be found in SSABs brochures at www.hardox.com or consult Tech Support.
Hardox® 600 is not intended for further heat treatment. It has obtained its mechanical properties by quenching and when necessary by means of subsequent tempering. The properties of the delivery condition cannot be retained after exposure to temperatures in excess of 480ºF for plate and 302ºF for sheets.
Appropriate health and safety precautions must be taken when welding, cutting, grinding or otherwise working on this product. Grinding, especially of primer coated plates, may produce dust with a high particle concentration.