Features
- Fine precision
- Superior surface quality
- Nickel plated optional
Chemical Composition
| Wire Grade | C | Si | Mn | P | S | Cu |
| JIS G 3522 SWPA | 0.80-0.85 | 0.12-0.32 | 0.30-0.60 | max0.025 | max0.025 | max0.020 |
| JIS G 3522 SWPB | 0.80-0.85 | 0.12-0.32 | 0.60-0.90 | max0.025 | max0.025 | max0.020 |
Dimensional Tolerance
| Diameter range (mm) | SWB SWC | |
| Tolerance(mm) | Roundness(mm) | |
| 0.15≤D≤0.20 | ＋0/-0.004 | max 0.003 |
| 0.20≤D≤0.50 | ＋0/-0.008 | max 0.004 |
| 0.50≤D≤0.60 | ＋0/-0.010 | max 0.005 |
| 0.60≤D≤1.00 | +0.005/-0.010 | max 0.008 |
| 1.00≤D≤1.50 | +0.005/-0.015 | max 0.010 |
Tensile Strength
| JIS G3522 SWPA/SWPB | ||
| Diameter (mm) | Tensile Strength (N/mm2) | |
| SWPA | SWPB | |
| 0.15 | 2650-2940 | 2940-3240 |
| 0.16 | 2650-2940 | 2940-3240 |
| 0.17 | 2600-2890 | 2890-3190 |
| 0.18 | 2600-2890 | 2890-3190 |
| 0.19 | 2600-2840 | 2840-3090 |
| 0.20 | 2600-2840 | 2840-3090 |
| 0.25 | 2500-2750 | 2750-2990 |
| 0.30 | 2400-2650 | 2650-2890 |
| 0.35 | 2350-2600 | 2650-2890 |
| 0.40 | 2350-2600 | 2600-2840 |
| 0.45 | 2300-2550 | 2550-2790 |
| 0.50 | 2300-2550 | 2550-2790 |
| 0.55 | 2260-2500 | 2500-2750 |
| 0.60 | 2210-2450 | 2450-2700 |
| 0.65 | 2210-2450 | 2450-2700 |
| 0.70 | 2160-2400 | 2400-2650 |
| 0.75 | 2110-2350 | 2350-2600 |
| 0.80 | 2110-2350 | 2350-2600 |
| 0.85 | 2110-2350 | 2300-2500 |
| 0.90 | 2110-2350 | 2300-2500 |
| 0.95 | 2060-2260 | 2260-2450 |
| 1.00 | 2060-2260 | 2260-2450 |
| 1.05 | 2010-2210 | 2210-2400 |
| 1.10 | 2010-2210 | 2210-2400 |
| 1.15 | 2010-2210 | 2210-2400 |
| 1.20 | 2010-2210 | 2210-2400 |
| 1.25 | 1960-2160 | 2160-2350 |
| 1.30 | 1960-2160 | 2160-2350 |
| 1.35 | 1960-2160 | 2160-2350 |
| 1.40 | 1960-2160 | 2160-2350 |
| 1.45 | 1910-2110 | 2110-2300 |
| 1.50 | 1910-2110 | 2110-2300 |