12L14 is a free cutting structural steel, which is a type of steel that is easily machined by cutting (turning, milling, pulling, planing, drilling, etc.), also known as automatic machine tool processing steel, abbreviated as automatic steel. It was developed to adapt to the automation of mechanical processing and production on assembly lines.
chemical composition
Carbon C:<=0.15
Manganese Mn: 0.85-1.15
Sulfur S: 0.26-0.35
Phosphorus P: 0.04~0.09
Lead Pb: 0.15~0.35
mechanical property 
Tensile strength σ b (MPa): 540
Yield strength σ s (MPa): 415
Elongation rate δ 5 (%): ≥ 10
Shrinkage rate of cross-section (%): ≥ 35
Hardness: ≤ 170HV
Mainly used for the production of instruments, watch parts, automobiles, machine tools, and other various machines with strict requirements for size accuracy and smoothness, but with relatively low requirements for mechanical performance, such as gears, shafts, bolts, valves, bushings, pins, pipe joints, spring seat cushions, machine tool screws, plastic molding molds, surgical and dental surgical tools, etc.
1. The company has established long-term and stable cooperative relationships with multiple well-known steel mills at home and abroad, all of which provide original material certification
2. Wholesale and retail, with favorable prices, superior quality (large quantities are preferred), and timely and fast delivery
3. The company has several large vertical band saws and steel plate precision machining machinery,
4. It is a large enterprise that integrates the sales, wholesale, and machining services of multiple imported high-quality mold steel products
5. Wide channels, sufficient supply of goods, and business scope covering all parts of the country, can meet the needs of customers in various regions
Sincerely welcome new and old customers from all walks of life to call and inquire about and negotiate business at any time. Our high-quality products and reasonable prices will definitely meet your requirements!
Welcome new and old customers to call for consultation and negotiation.