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Cromax® and NiKrom™ – Hard chrome plated bar from Ovako

Cromax 280X

Cromax 280X is based on a low carbon, microalloyed steel combining high strength with excellent machinability and weldability. For diameter up to 90 mm, yield and tensile strength are 20% higher than is normal for hard-chrome bars based on lowcarbon weldable steel. This improvement is achieved without detriment to machinability or weldability. In comparison with standard products based on grade 20MnV6, the superior properties profile of Cromax 280X offers a number of potential advantages in the design and manufacture of fluid-power cylinders, not the least of which is the possibility to downsize piston rods without loss of loadbearing capacity, thereby reducing not only weight but also cost.

Cromax IH 280X

Cromax IH 280X is the induction-hardened version of Cromax® 280X. Apart from improved resistance to damage from external impact, this product offers increased buckling strength. In many applications the material enables downsizing of piston rods, resulting in cost and weight savings.

Cromax IH 482

Cromax IH 482 is an induction-hardened product that effectively resists damage from external impact. Cromax® IH 482 is based on a high-strength, medium-carbon, microalloyed steel.

Cromax 42CrMo4

Quenched-and-tempered Cromax 42CrMo4 is manufactured from the standard low-alloy chromium-molybdenum steel. The product finds application where there is a requirement for elevated strength in combination with a defined and high level of toughness.

Cromax C35E

CromaxR C35E is a hard-chrome plated product based on mediumcarbon steel. Compared with the traditional C45Ebase, C35E offers improved weldability. However, by means of thermo-mechanical processing, the mechanical properties of the C35E used for Cromax products are rendered equivalent to those attainable in C45E.

NiKROM – Nickel-chrome plated bars

 

NiKrom products

In its standard form, Nikrom is based on the same steel grade as Cromax 280X, a low-carbon, micro-alloyed steel combining high strength with excellent machinability and weldability. For diameters smaller than 90 mm, yield and tensile strength are 20% higher than what is normal for chrome- or nickel-chrome plated products based on low carbon weldable steel of 20MnV6-type. This improvement is achieved without affecting machinability or weldability.