• Bright Mild Steel Bar

Bright steel bar is usually a carbon steel alloy which has had the surface condition improved by drawing, peeling or grinding over the hot rolled finish supplied by the steel mill. Advantages achieved include improved machining, less wastage at component production stage, enhancement of physical and mechanical properties and improved dimensional tolerances and straightness.

Product Stocking and Processing Service Program

Bright Mild Steel Bar
Standard AS1443 or similar overseas standards
Condition 3.17mm to 203.2mm
Size Range 9.52 x 3.17mm to 152.4 x 76.2mm
Grades 4.76mm to 90mm A/F
Processing Bar cutting

The download below provides detail of size range and thickness within the grades.

The information provided is for standard stock product and does not encapsulate all available combinations. Please contact the nearest Atlas Steels sales outlet if non standard product is required and we will enquire about its availability through our global supply network of mills and stockists.

Atlas Steels locations and contacts can be found in main menu of this website

Types of cold finished bars

Cold drawn bars are widely used in mass production of parts due to their excellent mechanical and dimensional properties, with machining characteristics in excess of the hot rolled bar condition. Round, hexagonal and square bars can be produced by cold drawing.

Turned and polished round bars have similar mechanical properties to those of equivalent hot rolled bar, but exhibit a smooth, bright surface finish and improved dimensional accuracy. They are widely used where a surface free of decarburisation is required, for example in induction hardening and when the surface must be free from surface defects, such as for use in cold forming.

Cold drawn and precision ground or turned and precision ground round bars, where very close dimensional tolerances and finishes are required, e.g. plating.

Cold rolled sizes up to 100mm wide and 7mm thick inclusive are produced by cold rolling to produce flat and some special shape sections to suitable tolerances and surface finishes.

Grade Datasheets

Code Description
Datasheet (171 kb)
All purpose low carbon steel with good ductility and weldability. Application in non-critical engineering applications.
Datasheet (171 kb)
All purpose medium carbon steel with intermediate strength good ductility and weldability. Application in low-stress engineering applications.
Datasheet (172 kb)
Low carbon free-machining steel with excellent machinability for non-critical engineering applications.
Datasheet (172 kb)
Low carbon free-machining steel with lead addition. Superior machinability in high-speed machining. Application in non-critical engineering applications. Cannot be welded.