12L14 Bright Bar Manufacturer & Supplier
The American free cutting standard — high sulphur, high manganese and leaded, with the best machinability of any carbon steel bar. Not for welding, plating adhesion or heat treatment.
UNS: G12144 / 1.0718 | Category: Free Cutting Steel
Size Range
Outer Diameter: Diameter 4-75 mm · Round, square, hexagon & flat sections
Chemical Composition (%)
| C | Mn | S | Pb | P |
|---|---|---|---|---|
| 0.15 max | 0.85-1.15 | 0.26-0.35 | 0.15-0.35 | 0.04-0.09 |
Mechanical Properties
- Tensile Strength
- 415-540 MPa (cold drawn)
- Yield Strength
- 350-415 MPa
- Elongation
- 10%
- Reduction of area
- 35%
Applicable Standards
- EN 10277-3 (free cutting bright steel)
- EN 10278 (dimensions & tolerances)
- BS 970 Part 3
- IS 1570 Part 2
- ASTM A108 / A29
- EN 10204 3.1 certification
Applications
- Screw machine products
- Threaded inserts
- Cable glands
- Instrument spindles
- Bushings
Industries Served
- Automotive & Auto Components
- Fasteners
- Hydraulics & Pneumatics
- General Engineering
- Textile Machinery
- Pumps & Valves
Equivalent Grades
- EN
- 11SMnPb30 / EN1A Pb
- Werkstoff / DIN
- 1.0718
- JIS
- SUM24L