What is ASTM T2 High Speed Tool Steel?
ASTM/AISI T2 high speed steel is a Tungsten High Speed Steel grade Tool Steel in specification of ASTM A600. ASTM A600 standard covers tungsten-type and molybdenum-type high-speed steels used primarily in the fabrication of tools. There are seven types of tungsten high-speed tool steels designated T1, T2, T4, T5, T6, T8 and T15 etc.
AISI T2 high speed steel is an air-hardening medium alloy tool steel that has wear resistance intermediate between the high carbon chromium tool steels and oil hardening tool steels. But it offers good toughness and exhibits minimal distortion on hardening.
1.AISI T2 High Speed Steel Supply Range
T2 Steel Round Bar: diameter 2mm – 800mm
T2 Steel Flat: thickness 2-20mm x width 10-100mm
T2 Tool Steel Plate: thickness 2-200mm x width 200-610mm
Surface Finish: Black, Rough Machined, Turned or as per given requirements.
2.Standard of AISI T2 High Speed Steel
| Country | USA |
| Standard | ASTM A600 |
| Grades | T2 / T12002 |
3.AISI T2 High Speed Steel Chemical Composition Properties
| ASTM A600 | C | Mn | P | S | Si | Cr | V | Mo | W | Co | ||||||||
| T2 | 0.80 | 0.90 | 0.20 | 0.40 | 0.03 | 0.03 | 0.20 | 0.40 | 3.75 | 4.50 | 1.80 | 2.40 | … | 1.00 | 17.50 | 19.00 | … | … |
4.AISI T2 High Speed Steel Mechanical Properties
- T2 Tool Steel Physical Properties
| Properties | Metric | Imperial |
| Density | 7.86 g/cm3 | 0.284 lb/in3 |
- Mechanical Properties of T2 HSS Tool Steel
| Yield Rp0.2 (MPa) |
Tensile Rm (MPa) |
Impact KV (J) |
Elongation A (%) |
Reduction in cross section on fracture Z (%) |
As-Heat-Treated Condition | HBW |
| 339 (≥) | 619 (≥) | 11 | 13 | 43 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 234 |
- Thermal Properties of T2 Tool Steel
| Properties | Metric | Imperial |
| Thermal expansion co-efficient (@20-260°C/68-500°F) | 10.6 µm/m°C | 5.89 µin/in°F |
5.Forging of ASTM T2 High Speed Steel
Soak AISI T2 tool steel for 1 hour at 2150 F (1177℃) prior to forging.
Do not work below 1850 F (1010℃). Post-work solution treatment is required prior to final hardening.
6.ASTM T2 High Speed Steel Heat Treatment
| Annealing hardness HBS |
Cold pull hardness HBS |
Preheating temperature ℃ |
Quenching temperature ℃ |
Holding time min |
Hardening medium | Temper temperature ℃ |
After tempering hardness ≥HRC |
|
| salt-bath furnace | controlled atmosphere furnace | |||||||
| 235 | 262 | 788 | 1191 | 1204 | 5～15 | air cooling | 522 | 60 |
7.Applications of ASTM/AISI T2 High Speed Steel
AISI T2 high speed steel are mainly used in high speed tool and cutting applications such as drills, milling processes, reamers, etc. Some typical applications of T2 tool steel are as below:
- Turning and slotting tools
- Broaching tools
- Reamers
- Threading dies
- Twist drills
- Tapes
Besides of AISI T2 HSS tool steel materials, we are capable of supply AISI T1 Tool Steel for your high speed cutting purpose. You are welcome to send us requests anytime for the ASTM T2 high speed steel price. We are a better choice. Please leave a comment if there are any questions.
