Description
The extra-high tough steel for structural wear parts
350HBW steel is an abrasion-resistant plate with guaranteed impact toughness. With a nominal hardness of 350 HBW, it’s a good choice for structural wear parts like thick cutting edges, demolition tools and rippers.
Dimension Range
350HBW steel is available in thicknesses of 40 – 160 mm. 350HBW steel is available in widths up to 3350 mm and lengths up to 14630 mm. For thicknesses over 125 mm preferred width is 1650 mm. More detailed information on dimensions is provided in the dimension program.
Mechanical Properties
| Thickness (mm) | Hardness (HBW) Min - Max (1) | Typical yield strength, not guaranteed (MPa) |
| 40.0- 160.0 | 310- 370 | 850 |
(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 material thickness will not deviate more than ± 15 mm from that of the test specimen.
VANFORGE wear resistant steel is through-hardened. Minimum core hardness is 90 % of the guaranteed minimum surface hardness.
Impact Properties
| Grade | Min. Impact energy (J) for transverse tests Charpy V 10x10 mm test specimen (2) |
| 350HBW steel | 40 J / -40 °C |
(2) Impact testing according to ISO EN 148 per heat and thickness group. Average of three tests. Single value minimum 70% of specified average.
Chemical Composition (heat analysis), %, max
| C | Si | Mn | P | S | Cr | Ni | Mo | B |
| 0.20 | 0.60 | 1.60 | 0.050 | 0.020 | 0.70 | 2.0 | 0.70 | 0.005 |
The steel is grain refined.
Intentional alloying elements.
Thickness
Tolerances according to the requirements of EN 10029 Class A
Length and Width
Tolerances conforms to EN 10029
Shape
Tolerances according to EN 10029
Flatness
Tolerances according to EN 10029 Class N.
Surface Properties
EN 10163-2 Class A Subclass 1
Delivery Conditions
The delivery condition is Quenched. The plates are delivered with sheared or thermally cut edges. Untrimmed edges after agreement.
Fabrication and Other Recommendations
Welding, bending and machining.
350HBW steel is not intend 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 450 ºC .
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.
Production process
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