T1 High Speed Steel

bright surface T5 high speed steel bar

The T1 High Speed Steel is known for its balanced combination of abrasion resistance, high toughness, high ?hardness (can reached 62~66Hrc) and good red hardness (can work in Max 620 °C, Advice work below 600 °C)As T1 tungsten high speed steel it is used in a variety of applications and worldwide it is the most popular high speed steel because of its superior qualities. As a result of its low carbon and high alloy content, T1 has an outstanding combination of toughness properties and abrasion resistance when correctly hardened and tempered. and ?T1 high speed steel is easy to grinding.

T1 tool steel HSS Related Specifications ASTM A600-1999

Chemical composition

C(%) 0.65~0.80 Si(%) 0.20~0.45 Mn(%) 0.10~0.40
P(%) ≤0.030 S(%) ≤0.030 Cr(%) 3.75~4.50
W(%) 17.25~18.25 V(%) 0.90~1.30

T1 Tool Steel Form of Supply

T1 high speed steel, we can supply the?round bar, flat bar, plate and square block. Diameters can be sawn to your required lengths as one offs or multiple cut pieces. Rectangular pieces can be sawn from flat bar or plate to your specific sizes. Ground tool steel bar can be supplied, providing a quality precision finished bar to tight tolerances.

  • Round bar: diameter 2mm – 300mm
  • Plate: thickness 2mm – 300mm x width 100-1800mm

Applications of AISI T1 tool steel

T1 high speed steel is the most widely used tungsten is a general type of high speed steel, high temperature hardness and red hardness and hardness is high, easy to grinding. Apply for working temperature below 600 ℃ can still keep the cutting performance of cutting tools, such as vehicles, shaver, milling, reaming, broach, drilling, gear cutting tools and tap, die, etc., suitable for processing soft or medium hardness material below (300 ~ 320 HB). And make high temperature abrasion machine parts.


Forging?of AISI ?T1 tool steel HSS

Heat to Forging temperture slowly. Soak enough time, pls ensure heat thorough

Annealing of high speed steel T1

Hardness HBS | annealing: 255


Cold Drawn of HSS T1 steel

  • Hardness HBS | cold drawn: 269
  • Hardness HBS | cold drawn after annealing: 262


?Heat treat treatment of T1 high speed tool steel

  • ?Preheat temperature: 816 ~ 816℃
  • Quenching temperature / ℃ | salt bath furnace: 1277
  • Quenching temperature / ℃ | controlled atmosphere furnace: 1288
  • Tempering temperature / ℃ : 552
  • After tempering hardness or higher: 63?HRC

T1 High Speed Steel?Regular size and Tolerance

1) Hot Rolled round bar
Diameter Tolerance
Diameter Tolerance
6.4~15.8 -0.038 ~0.038 181~<206.2 0~1.6
15.8~<77.6 0~0.10 206.2~<257 0~2.4
77.6~<103 0~0.15 257~<307.7 0~3.2
103~<181 0~0.78 ≥307.7 0~4.7
2) Hot Rolled steel plate
Thickness Tolerance
Thickness Tolerance
≤25.4 -0.41~0.79 >127~152 -1.60~2.39
>25.4~76 -0.79~1.19 >178~254 -1.98~3.18
>76~127 -1.19~1.60 >254~305 -2.39~3.96

Others have not specified size, pls contact our?experienced sales team.

Processing?of high speed steel T1 HSS

T1 High Speed steel round bar and flat sections can be cut to your required sizes. T1 High Speed ground steel bar can also be supplied, providing a high quality tool steel precision ground tool steel bar to your required tolerances. T1 High Speed steel is also available as Ground Flat Stock / Gauge Plate, in standard and nonstandard sizes.


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