- AISI T1
Standards : X100CrMoV5
| Element | Content (%) |
|---|---|
| Carbon (C) | 0.70 – 0.80 |
| Tungsten (W) | 17.25 – 18.75 |
| Molybdenum (Mo) | ≤ 1.00 |
| Vanadium (V) | 0.90 – 1.30 |
| Chromium (Cr) | 3.75 – 4.50 |
| Manganese (Mn) | ≤ 0.30 |
| Silicon (Si) | ≤ 0.30 |
| Phosphorus (P) | ≤ 0.03 |
| Sulfur (S) | ≤ 0.03 |
Grade Brief
AISI T1 (also known as 1.3355 or HS18-0-1) is the original tungsten-based high-speed tool steel. It offers a balanced combination of hardness, toughness, wear resistance, and hot hardness. Although tungsten steels are less common today due to cost and supply, T1 remains widely used for general-purpose high-speed cutting tools.
- Type: Tungsten high-speed tool steel
- Hardness (after heat treatment): 62–66 HRC
- Characteristics: High hardness, wear resistance, red hardness, good toughness
Applications: Turning tools, planing & slotting tools, taps, twist drills, threading dies, broaches, reamers, and profile cutting tools
Mode of Supply
Kuber Multi Metals is the largest stockiest and supplier of T1 Steel in flat, square and round bar. We provide steel in all sizes as your requirements. T1 die steel is available in flat, square and round shape. Consult our team who will assist you for T1 steel query.
Steel Properties
Standard hiqh-speed steel qrade. Itswell-balanced alloycomposition forms the basis of its high_touqhness and good clll:ting edge retention, render’lng it suitable for a large variety of applications.
| Property | Value |
|---|---|
| Hardness (Annealed) | ~ 229 HB |
| Hardness (After Heat Treatment) | 62 – 66 HRC |
| Tensile Strength | ~ 3400 MPa (quenched & tempered) |
| Compressive Strength | Excellent |
| Red Hardness | Maintains cutting edge up to 550–600 °C |
Physical Properties
These physical properties are approximate values and can vary depending on the specific composition , heat treatment and manufacturing processes used for M42/DIN 3247/AISI M42 steel.
| Temperature (°C) | 20 | 350 | 700 |
|---|---|---|---|
| W/(m·K) | 32.8 | 23.5 | 25.5 |
Heat Treatment & Processes
Annealing
Heat to: 850 – 900 °C
Cooling: Hold, then slow cool at ≤ 10 °C/h to 600 °C, then air cool
Hardness after annealing: ≤ 229 HB
Hardening (Quenching)
Preheat: 450 – 500 °C, then 850 – 900 °C
Austenitize: 1280 – 1300 °C
Quench: Oil, salt bath, or air
Tempering
Immediately after quenching
Temper at: 540 – 560 °C (usually 2–3 times)
Final Hardness: 62 – 66 HRC
Application
Twist drills, reamers, taps, Milling cutters, broaches, Turning, slotting, and planing tools, Threading dies and profile cutting tools, General-purpose cutting operations
Conclusion
AISI / ASTM T1 (1.3355 / HS18-0-1) is a traditional high-speed tool steel containing tungsten with high hardness, wear resistance, and red hardness up to 600 °C. T1 has superior toughness and durability, and is still a useful tool in twist drills, taps, reamers, milling cutters, broaches, threading dies, and other general-purpose cutting tools. T1 is still in use in machining operations and other applications and is popular in spite of newer models such as M2 due to its reliable performance and reliability in machining.
Addition to other Grades
HCHCR-D2 Steel , HCHCR-D3 Steel , P20+Ni Steel , P20 Steel , P20 HH , Stavax ESR , DB6 Steel , H13 Steel, H11 Steel, H21 Steel, H10 Steel, H12 Steel, M2 Steel, M35 Steel, M42 Steel, T1 Steel, C 45, MS Steel, En 31, En 24 , En 353 , En 19 , En 8 , En 8D , En 9 , En 47 , 20 Mncrs , SAE8620 , DIN 2379 Steel, DIN 2080 Steel, DIN 2738 Steel, DIN 2311 Steel, DIN 2714 Steel, DIN 2344 Steel , DIN 2343 Steel, DIN 2581 Steel, DIN 2365 Steel, DIN 2606 Steel, DIN 3343 Steel, DIN 3243 Steel, DIN 3247 Steel, DIN 3355 Steel , AISI D2 Steel, AISI D3 Steel, AISI P20+Ni Steel, AISI P20 Steel, AISI L6 Steel, AISI H13 Steel, AISI H11 Steel, AISI H21 Steel, AISI H10 Steel, AISI H12 Steel, AISI M2 Steel , AISI M35 Steel, AISI M42 Steel , AISI T1 Steel
