Since then, various lead-sulfur binary and multi-composite free-cutting steels have come out one after another. 1215 due to accurate accuracy, good surface condition, easy to cut steel products can be used directly, such as spraying, sanding, bending, drilling, can also be directly electroplated after fine drawing according to actual requirements, eliminating a lot of machining time and saving the cost of configuring processing machinery.
Supply Form & Size
| Form of Supply | Size(mm) | Length(mm) |
| Round bar | 6.0mm-120mm | 2.5m-6m |
Chemical Composition&Related Specifications
| Grade | C | Si | Mn | S | P |
| 1215 | ≤0.09 | ≤0.1 | 0.75-1.05 | 0.26-0.35 | 0.04-0.09 |
Brand comparison table
| AISI/SAE | DIN/EN | BS | JIS/KS | China |
| 1215 | 11SMn37(1.0736) | 11SMn37(1.0736) | SUM22 | / |
Mechanical Property
| tensile strength σb (MPa) | 390~540 |
| elongation δ5 (%) | ≥22 |
| Reduction of area ψ (%) | ≥36 |
