SAE standard material F 837 Class A1-55 S20300 belongs to the USA, from the steel to the finished product, we have the perfect technology and many years of accumulation of experience, we can now produce products include steel coil, sheet, plate,round bar, square steel, steel wire, steel pipe, forgings, other...
F 837 Class A1-55 S20300 Application:Standard Specification for Stainless Steel Socket Head Cap Screws (Metric)
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | - | 0.08 | ||
| Mn | 5.00 | 6.50 | ||
| Si | - | 1.00 | ||
| P | - | 0.04 | ||
| S | 0.18 | 0.35 | ||
| Cr | 16.00 | 18.00 | ||
| Ni | 5.00 | 6.00 | ||
| Mo | - | 0.50 | ||
| Cu | 1.75 | 2.25 |