Basic Info.
Model NO.
cold drawn steel bar
Special Use
Free Cutting Steel
Raw Material
Steel Round Bar
Main Grade
Mild Steel
Grade Name
1215 12L14 Sum23 Sum24 1141 1144 304cu
Steel Type
Easy Machining
Steel Shape
Round Bar, Hex Steel Bar, Flat Bar
Surface
Bright and Shinny Surface
Free Sample
Yes
Transport Package
5 Layer Anti-Rust Packaging
Specification
dia: 5mm-70mm
Trademark
dajin
Origin
China
Production Capacity
2000
Product Description
SUM23 11SMn30 12L14 1215 cold drawn free cutting mild steel bar
1.12L14 cold drawn bar brife introduction
12L14 is a Re-Sulphurised, Re-Phosphorised Free Maching Steel. This is premium grade of free cutting steel is used by repitition
engineers and general machining for a wide variety of applicaitons. It has excellent machinability and is suitable for case hardening and electroplating.
2.12L14 Cold drawn steel bar Typical applications
Aircraft landing bolts, fasteners, bushings, and shafts,Brake hose ends, pulleys, disc brake pistons, wheel nuts and inserts, control linkages, gear box components (case hardened), domestic garbage bin axles, concrete anchors, padlock shackles,hydraulic fittings,vice jaws (case
Hardened).
3.12L14 cold drawn steel bar main type and avaliable sizes
4.12L14 Cold drawn steel bar size tolerance
h9,h10,h11 or other tolerance according to client's requirement
5.12L14 Cold drawn steel bar chemical composition(%)
6.12L14 Alternative grade in different standard
7.12L14 Typical Mechanical Properties - Cold Drawn and Turned and Polished Condition
1.12L14 cold drawn bar brife introduction
12L14 is a Re-Sulphurised, Re-Phosphorised Free Maching Steel. This is premium grade of free cutting steel is used by repitition
engineers and general machining for a wide variety of applicaitons. It has excellent machinability and is suitable for case hardening and electroplating.
2.12L14 Cold drawn steel bar Typical applications
Aircraft landing bolts, fasteners, bushings, and shafts,Brake hose ends, pulleys, disc brake pistons, wheel nuts and inserts, control linkages, gear box components (case hardened), domestic garbage bin axles, concrete anchors, padlock shackles,hydraulic fittings,vice jaws (case
Hardened).
3.12L14 cold drawn steel bar main type and avaliable sizes
| Round bars | 5mm-130mm |
| Suqare bar | 6*6mm-100*100mm |
| Flat bars | 3mm*20mm-50mm*100mm |
| Hex bars | 6mm-100mm |
| Bar Finsihe | Peeled, Cold Drawn, TurnedTurned & Polished, Centreless Ground |
4.12L14 Cold drawn steel bar size tolerance
h9,h10,h11 or other tolerance according to client's requirement
5.12L14 Cold drawn steel bar chemical composition(%)
| C | Si | Mn | P | S | Pb |
| Max 0.15 | Max 0.10 | 0.80-1.20 | 0.04-0.09 | 0.25-0.35 | 0.15-0.35 |
6.12L14 Alternative grade in different standard
| Germany | DIN 95MnPb28, Werkstoff No. 1.0718 |
| Great Britain | BS970 230M07 leaded, EN1A Leaded |
| Japan | JIS: SUM22L |
| USA | AISI /SAE 12L14 UNS G12144 |
7.12L14 Typical Mechanical Properties - Cold Drawn and Turned and Polished Condition
| Cold Drawn Size mm | up to 16mm | 17 - 38mm | 39 - 100mm | |
| Tensile Strength Mpa | Min | 480 | 430 | 400 |
| Max | 760 | 690 | 630 | |
| Yield Strength Mpa | Min | 350 | 330 | 290 |
| Max | 590 | 550 | 500 | |
| Elongation in 50mm % | Min | 7 | 8 | 9 |
| Hardness HB | Min | 142 | 120 | 115 |
| Max | 225 | 205 | 185 |
