Fasteners

Steel wire rod for fasteners:

The wire rod for screws and connecting components is cold shaped, hot shaped or machined. This includes various bolts, nuts, trunnions, and machine parts used in various industrial sectors. The material for this application meets the requirements of high surface and internal quality.

Cold heading steel CHQ (heat treatable and non-heat treatable)

Cold heading (or cold forming) is a method of forming metal in progressive steps into net shaped or near net shaped parts like screws, bolts, nuts and rivets.

The cold heading process for manufacturing fasteners and fixings demands wire rod prossessing structural homogeneity and excellent deformability, required strength/hardness as an end product, and no surface defect or inclusion which may result in processing cracks.

Our typical materials used for cold heading products are:

Boron (LOW AND MEDIUM CARBON AND LOW ALLOY) STEELS

Our boron steels offer enhanced formability, as-rolled strength, lower processing time and cost, and fairly low susceptibility to head bursts. This enables them to be processed into more complex fastener shapes. These steels offer excellent hardenability and consistent performance during cold forming and subsequent heat treatments.

LOW-CARBON ALUMINIUM-KILLED STEELS

Our low-carbon aluminum-killed steels are suitable for the full range of cold heading applications. They offer enhanced ductility, formability and strength.

ALLOY STEELS

We offer low-alloy (with and without boron) heat-treatable wire rod products with controlled hardenability. These products meet national and international specifications. they can be supplide based an specific requiments..

Some of the CHQ grades supplied by Kavir Steel according to EN 10263-2, 10263-3, 10263-4 and ASTM F2282-15 are as follows:

10B21, 10B38, 20MnB4, 23MnB4, 30MnB4, 36CrB4, SCM435 (35CrMo4), C10C, C20C, SAE1022