Free Cutting Bright Bars — Manufacturer & Supplier
The fastest bar on an automatic lathe — EN1A, EN1A Pb, 11SMn30, 11SMnPb30, 12L14 and 1215.
Free cutting steel is resulphurised on purpose. The manganese sulphide inclusions break the chip at the tool tip instead of letting it curl into a bird's nest, which is what lets a bar-fed lathe run unattended through a night shift. Leaded versions add roughly 25% to cutting speed again. The trade is that these grades are not weldable and will not harden, so they belong in machined parts rather than stressed ones. Stocked 4 mm to 80 mm in cold drawn, turned and ground condition.
Manufactured under the Stancor Bright Bars brand by Stancor Bright Bars.
Specifications
- gradeRange
- EN1A, EN1A Pb, 11SMn30, 11SMnPb30, 12L14, SAE 1215
- diameter
- 4 mm to 80 mm
- sections
- Round, square, hexagon & flat
- lengths
- 3 m, 4 m, 6 m and cut to length
- tolerance
- ISO h8, h9, h10, h11 to EN 10278
- straightness
- 0.5 mm/m (1 mm/m on cold drawn above 80 mm)
- certification
- EN 10204 3.1 (3.2 on request)
Free Cutting Bright Bars Applications
- Screw machine products
- Pins & dowels
- Hose & pipe fittings
- Bushes & collars
- Electrical terminals
Applicable Standards & Specifications
- EN 10277-3
- EN 10278
- BS 970 Part 3
- ASTM A108
- IS 1570 Part 2