T-15 is an air or oil hardening tool steel that has exceptional wear resistance. It resists softening at high operating temperatures.
T-15 is an air or oil hardening tool steel that has exceptional wear resistance. It resists softening at high operating temperatures.
| C | CO | CR | MN | MO | NI | P | S | SI | V | W |
|---|---|---|---|---|---|---|---|---|---|---|
| 1.50 – 1.60 | 4.75 – 5.25 | 3.75 – 5.00 | 0.15 – 0.40 | 1.00 Max. | 0.15 – 0.40 | 4.50 – 5.25 | 11.75 – 13.00 |
Flats • Hollowbar • Metric • Non-Standard • Rounds • Squares • Standard
| Boring Tools | Broaches | Cold Heading Punches |
| Header Die Inserts | Hobs | Lathe Tools |
| Milling Cutters | Planer Tools | Reamers |
| Shaper Tools | Shaving Tools | Taps |
AISI T15 High Speed Tool Steel-US
DIN 1.3202-Germany
UNI 130505 KU-Italy
B.S. BT 15-US
ASTM A600-US
FED QQ-T-590-US
UNS T12001-US
UNS T12015-US
| Treatment | Temperature Range | Cooling/Quenching | Notes |
|---|---|---|---|
| Forging | 1700-2100° F | Slow. | Cool slowly in dry sand or in other insulating media. |
| Annealing | 1600-1650° F | Cool slowly at a rate of 35° F per hour to 1000° F. | For best results, insulating media is desirable. Hold at temperature for 2 hours. |
| Stress Relieving | 1100-1300° F | Cool slowly | Stress relieve after rough machining |
| Preheating | 1450-1500° F | Preheat time in furnace is ¾ Hr. per inch of thickness. Heating up to temperature as slow as possible. | |
| Hardening | 2250-2300° F (furnace) 2220-2275° F (salt bath) | Quench in air or warm oil. To minimize quenching strains, quench in salt at 1000° F | For maximum wear resistance, harden at 2300° F. For maximum toughness and high hardness, harden at 2200° F. |
| Tempering | (See Chart) | Double tempering is recommended. The usual tempering time is 2+2 hours. Recommended temperature is 1000-1075° F for cutting tools. 1100-1200° F for shock tools |