Product Description
Bromford '43CMnB' is a treatable 0.40-0.45% carbon-manganese-boron steel.

Composition Properties
Silico-manganese spring steel grade 251A58 as specified in BS970 Part 2 1988 'Requirements for steels for the manufacture of hot formed springs'.

Size Range
Hot Mill 1 flats are available in most combinations from 18mm up to 80mm wide by 3mm up to 13mm thick. Special profiles can be rolled within similar geometric limits.

Tolerances
BS970 Pt.1 dimensional tolerances are standard for mill
edge flats.

Width
10 to 35mm +/- 0.5mm, 35 to 75mm +/- 0.8mm,
over 75mm +/- 1.0mm

Thickness
up to 10mm +/- 0.4mm, over 10 mm +/- 0.5mm

Length
Standard + 300mm, Exacts + 50mm, Re-sheared + 6mm

Special tolerances and SPC analysis can be supplied
by agreement.

Supply Condition
Bars are available in lengths up to 8.0 metres. Bar ends are cleanly sheared. Standard bundles are 2000 kg secured with tensioned bands. Smaller bundles available by agreement.

Ancillary Services
Re-shearing, cold straightening, pickling and oiling, special bundling and wrapping.

Bromford Iron & Steel Co Ltd
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Hot Rolled Flats &
Special Profiles

Pickling & Oiling
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