W-1 is a water-hardening tool steel that is easy to machine. Its high carbon content allows it to develop a keen cutting edge. It has a moderate wear resistance.
W-1 is a water-hardening tool steel that is easy to machine. Its high carbon content allows it to develop a keen cutting edge. It has a moderate wear resistance.
| C | CO | CR | MN | MO | NI | P | S | SI | V | W |
|---|---|---|---|---|---|---|---|---|---|---|
| 0.70 – 1.50 | 0.15 Max. | 0.10 – 0.40 | 0.10 Max. | 0.10 – 0.40 | 0.10 Max. | 0.15 Max. |
Flats • Hollowbar • Metric • Non-Standard • Rounds • Squares • Standard
| Blanking Dies | Cartridge Dies | Circular Cutters |
| Draw Dies | Drifts | Drills |
| Engraving Stamps | Forming Dies | Gauges |
| Jeweler Dies | Knurling Tools | Paper Knives |
| Punches | Reamers | Striking Dies |
| Taps | Threading Dies | Wood Knives |
ASTM A686-US
SAE J437 (W108)-US
SAE J437 (W109)-US
SAE J437 (W112)-US
SAE J437 (WhO)-US
SAE J438 (W108)-US
SAE J438 (W109)-US
SAE J438 (W110)-US
SAE J438 (W112)-US
UNS T72301-US
AISI W1 Tool Steel-US
| Treatment | Temperature Range | Cooling/Quenching | Notes |
|---|---|---|---|
| Forging | 1700-1900° F | In air. | Heat slowly to maximum temperature. Forging should begin as soon as the section is uniformly heated through. |
| Annealing | 1400-1450° F | Cool slowly in the furnace at a maximum rate of 50° F per hours.. | Protect against surface decarburization by pack-annealing. Hold at temperature for 1 hour. |
| Stress Relieving | 1200-1250° F | Cool slowly in air. | Stress relieve after rough machining |
| Preheating | 1200-1250° F | Preheat time in furnace is ¾ Hr. per inch of thickness | |
| Hardening | 1375-1450° F | In water or in a brine solution. | Small tools or parts may be heated in molten lead or in a salt bath. Soak time is 10 minutes per inch of thickness. Minimum of 30 minutes. |
| Tempering | Temper immediately after hardening and quenching. Recommended temperature is 350-550° F. |