| Analysis | Applications | Heat Treating | Tolerances | Speedy Metals items |
W1 drill rod is a 1% carbon water hardening tool steel that has superior machinability over all the other tool steel drill rods. W1 provides good wear resistance and toughness for the short run, but will not give tool life as extensive as O-1. W1 drill rod is produced in a ground and polished condition, with a fine surface finish better than 40 micro inches. Supplied in standard 36" lengths.
| Carbon (C) | Manganese (Mn) | Silicon (Si) | Chromium (Cr) Max | Molybdenum (Mo) Max | Tungsten (W) Max | Vanadium (V) Max | Phosphorus (P) Max | Sulfur (S) Max |
| 0.95-1.05 | 0.3-0.4 | 0.1-0.25 | 0.15 | 0.1 | 0.15 | 0.1 | 0.025 | 0.025 |
AISI/SAE W1 conforms to ASTM A-686-79, SAE J-439, QQ-T- 580 RevC
Typical applications for W1 drill rod are shafts, pins, taps, drills, punches, arbors, machinery parts, cold forming tools, blacksmithing tools, woodworking tools, chisels, etc.
HARDENING
Heat thoroughly to 1425-1500°F. Hold one half hour per inch of section; quench in water or brine.
TEMPERING
The tempering temperature may be varied according to the desired hardness. If maximum hardness is desired, tempering should be in the range 300-400°F.
| Tempering Temperature °F | Rockwell C |
| As Hardened | 55-68 |
| 300 | 64-65 |
| 400 | 62-64 |
| 500 | 58-59 |
| 600 | 54-56 |
| 700 | 50-51 |
| 800 | 46-47 |