18 Gauge Mattress Spring Steel Wire 1.3mm 2.3mm 3.2mm 7mm EN10270-1 Carbon Spring Steel Wire

Standard: EN10270-1, DIN17223-1, JIS G 3521 and customer standard.
Diameter: 0.15mm-17.0mm
Grade: 65Mn, 67A, 67B, 70#, 72A, 72B, 80#, 82A, 82B,T9A, 9254 etc.
Application: mechnical springs, mattress wire , upholstery wire
Packing: metal spool , plywood spool, catch weight coil, rosette coil , carrier , Z2 , Z3 coil etc .
| Grade | C | Si | Mn | P Max. | S Max. | Cu Max. |
| SL | 0.35-1.0 | 0.10-0.30 | 0.5-1.20 | 0.035 | 0.035 | 0.20 |
| SM | 0.35-1.0 | 0.10-0.30 | 0.5-1.20 | 0.035 | 0.035 | 0.20 |
| SH | 0.35-1.0 | 0.10-0.30 | 0.5-1.20 | 0.035 | 0.035 | 0.20 |
| DM | 0.45-1.0 | 0.10-0.30 | 0.5-1.20 | 0.020 | 0.025 | 0.12 |
| DH | 0.45-1.0 | 0.10-0.30 | 0.5-1.20 | 0.020 | 0.025 | 0.12 |
| 72A | 0.69-0.76 | 0.15-0.35 | 0.30-0.60 | 0.040 | 0.030 | * |
| 82B | 0.79-0.86 | 0.15-0.35 | 0.60-0.90 | 0.040 | 0.030 | * |






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