Technical advice
The right steel for every application
More hardness does not always mean longer life. A plate that is too hard for an impact application can crack; one that is too soft wears out too soon.
Nine selection factors
Choosing a wear plate is not only about hardness. These are the criteria we review with every customer.
Brinell hardness
The most common indicator of abrasion resistance. It is expressed in HBW and measured with a tungsten carbide indenter. Higher hardness usually resists sliding wear better, but it is not the only criterion.
Abrasion resistance
Depends on both the steel and the abrasive: particle hardness, shape, size and speed, plus contact pressure. The same steel behaves differently with silica sand than with limestone.
Impact resistance
Where there is impact, the toughness of the steel prevents cracking and spalling. In high-impact applications, too much hardness can shorten service life instead of extending it.
Weldability
The higher the hardness and thickness, the more care is needed with preheating, heat input and low-hydrogen consumables. Always follow the steel manufacturer’s recommendations.
Bendability
Minimum bending radii grow with hardness and thickness. If the part has to be formed, this may decide the grade before abrasion does.
Thickness
Sets the wear allowance, the equipment weight and the cutting and welding processes. Sometimes a harder grade allows a thinner plate with the same service life.
Operating conditions
Temperature, humidity, corrosion, load type and duty cycle all affect how the plate actually performs in service.
Cost-benefit
Price per kilogram does not capture the full value. A plate that lasts longer can offset a higher initial cost with fewer replacements.
Total cost of ownership
Includes material, fabrication, installation, downtime, maintenance labour and lost production. It is the most complete way to compare alternatives.
Unsure between 450 and 500? Use the comparison.
Which steel does your application need?
Tell us what material you handle, how often the part is replaced and what steel you use today.