Hardox® round bars

Hardox^® round bars allow you to upgrade your steel quality in different heavy-wear applications such as agriculture, engineering and machining, mining, drilling and construction. These abrasion-resistant steel round bars are tested frequently in each batch and come with guaranteed properties, as all engineering steels require.

Why Hardox^® round bar?

• Come already through-hardened
• Easy to machine and weld, no preheating needed
• Exceptionally clean and fatigue resistance comparable with ingot casted steel
• Have same guaranteed properties as Hardox^® wear plate
• Open up new design potential for stronger, lighter equipment

Hardox^® abrasion-resistant round bars feature the same guaranteed properties as the trusted Hardox^® wear plate. They come in two hardness levels: Hardox^® 400 and Hardox^® 500. Hardox^® 400 is offered in diameters of 40–100 mm (1.575–3.937 in.) and Hardox^® 500 in diameters of 40–160 mm (1.575–6.299 in.) Both round steel bars come in lengths up to 5,000 mm (196.85 in). The cleanliness and fatigue resistance of Hardox^® steel round bars are comparable with ingot casted steel, combined with high strength and impact toughness.

Engineering components subjected to high stress levels are traditionally hardened by heat treatment. But this only affects the surface of the material and fails to penetrate down to the core. Hardox^® round bars are hardened steel round bars that are delivered already through-hardened. The hardness is consistent from the surface right down to the core of the material.

Hardox^® abrasion-resistant round bars can reach very tight tolerances. In cooperation with an expert machining center in Germany, we have succeeded in easily achieving tolerances of h11, h9 and f8 for the Hardox^® 400 and 500 bars. This capability opens new opportunities for a wide range of applications using high-strength bright bar. Examples include axel, pin and coupling applications.

You might be considering buying conventional steel for rods, such as high-carbon steels like 42CrMo4V steel. These steels are an acceptable solution but can pose some serious limitations.

For one, you need an additional heat treatment to increase the bar’s strength, which usually results in an inconsistent hardness profile on the cross section. This will significantly impair the impact toughness levels, giving you a product whose quality you can’t rely on. And heat treatment is a costly, time-consuming process.

A rod mill is an application that requires significant wear resistance, as well as high crack resistance and toughness.

To satisfy our customers’ growing demand for Hardox^® round bars, we have improved local availability in order to speed up deliveries. The most common dimensions of Hardox^® round bars are stocked at 15 sales locations worldwide, making it easy to order production material and test samples. The local stocks can also be customized to provide certain dimensions. The central stock for Hardox^® round bars is located in Antwerp, Belgium. The production stock is located in Sweden.

The map shows central and local stocks. For available dimensions and delivery conditions in your area, contact SSAB sales.