12 15MS is a brand in the enterprise standard q/hgj2139-2012 of Hangzhou iron and steel group co., ltd, which increases the content of Mn and S on the basis of American standard material 12 15 and improves the material strength.
Chemical composition of 12 15MS steel (%): c: ≤ 0.09si: ≤ 0.15mn:10-1.40p: 0.04.
Extended data:
12 15 free-cutting steel products are widely used in:
Mainly used for automatic cutting machine tools to process fasteners and standard parts, such as studs, screws, nuts, pipe joints, spring seats, etc.
Mechanical equipment: woodworking machinery, ceramic machinery, paper machinery, glass machinery, food machinery, construction machinery, plastic machinery, textile machinery, jacks, hydraulic presses, etc.
2. Electrical product components: motor shaft, fan shaft, sewing machine shaft, etc.
3. Furniture: especially exported metal furniture, such as coffee tables, chairs and outdoor furniture.
4. Metal appliances: garden tools, grills, screwdrivers, anti-theft locks, etc.
5. Hardware spare parts: such as guide rails, machine keys, nuts, screws, round nails, hexagonal nails, octagonal nails and various standard parts with different specifications.
6. Automobile and motorcycle parts.
References:
Baidu encyclopedia-12 15 steel