12L14 Free cutting steel
What is 12L14 Steel？
12L14 referred to as automatic steel, automatic steel is easy cutting structural steel, easy cutting structural steel is also known as automatic machine tool processing steel, this kind of steel, is suitable for mechanical processing automation and production line production of steel. 12L14 easy cutting steel has the characteristics of good cutting performance and low cutting force.
12L14 steel application
12L14 steel has added lead element, which is a kind of lead steel alloy. The production process is carbonization and phosphorous. The high machinability of 12L14 steel makes it ideal for high speed machine operation. The 12L14 is used in machining and manufacturing applications to produce parts with a good finish, such as screws, nuts and shafts. 12L14 steel is also used in the manufacture of bushings, gaskets, and other components that require close tolerances and a good surface finish.
12L14 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 |
12L14 steel 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 |
12L14 steel 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 |
Free cutting Steel bar Packing:
*Bars from different heats will not be mixed and dispatched.
*Bars will be bundles and securely metal strapped in 4 min places of the bar length and tagged properly.
*Anti-rust oil paint
* plastics bag wrapped,wooden box,wooden pallet
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FAQ
Is 12L14 mild steel?
Yes, 12L14 steel is a type of mild steel. It is a lead-bearing steel that has an excellent machinability rating of 180% of AISI 1212 steel. It is a resulfurized and rephosphorized carbon steel that is used for a variety of applications including fasteners and other parts that require extensive machining.
What is the difference between 12L14 steel and 1018 steel?
12L14 steel is a lead-bearing steel that has a high level of machinability and is primarily used for making parts that require extensive machining. It has excellent free-cutting properties, good toughness, and a low level of distortion after machining. 1018 steel is a low-carbon steel that contains 0.6-0.9% manganese and 0.05-0.20% silicon. It has a higher tensile strength and is more ductile than 12L14 Steel. It is usually used in cold-formed or machined parts and is used in a variety of applications, such as gears, shafts, axles, and fasteners.
What does the L stand for in 12L14 steel?
The “L” in 12L14 steel stands for “Leaded”. 12L14 is a type of steel containing lead which helps to improve machinability.
Can 12L14 be welded?
Yes, 12L14 steel can be welded. It is a low-carbon steel with a high manganese content which makes it relatively easy to weld. It is commonly used in the manufacture of parts such as gears, shafts, pins, and dowels. When welding 12L14, it is important to use a low heat input to avoid warping the metal. Preheat and post-heat treatments may also be necessary to reduce the risk of cracking.
