T1 High Speed Steel

T1  high speed tool steel manufacturers and suppliers, supplied in round rods,flat/square bars,plates,sheets,wire and blocks.

T1 steel is a typical Tungsten-type high speed tool steel according to ASTM standard.It has good comprehensive performance. T1 hss steel has a high hardness (HRC62~66), strength, toughness and heat resistance.The red hardness of T1 tool steel can reach 620°C.It’s cutting edge can be more sharp. AISI T1 high-speed steel has strong commonality. However its strength with cross section dimension decreases a lot.

T1 High Speed Steel

Chemical Composition
CarbonChromiumVanadiumTungsten
Min0.653.750.917.25
Max0.84.51.318.75
Related Specification
W-Nr: 1.3355
DIN: HS18-0-1
JIS/KS: SKH2
UNS: T12001
Heat Treatment
Annealing
1.Annealing is recommended after hot working and before re hardening
2.Heat the temperature to 850°C at a rate of no more than 220°C per hour.
3.Hold at the temperature for one hour per inch of thickness(at least two hours).
4.Cool slowly in the furnace or in air to ambient temperature.
5.The resultant hardness achieved should be Max 255HB or lower.
Hardening
1.Preheat T1 to 480-500°C ,then up to 880-900°C.
2.Heat to the final hardening temperature of 1200°C and make sure the material must be heated through.
3.Quench in the warm oil,and then complete the quench in air.(care must be taken at this step)
4.T1tool steel is suitable for vacuum hardening.
Tempering
1.Tempering must be done immediately after quenching.
2.Heat thoroughly and uniformly to the tempering temperature
3.Hold at the temperature for at least two hours (one hour per inch of the total thickness).
4.Triple tempering is strongly recommended for T1 tool steel.
Delivery Condition
Shape:Round / Square / Flat Bars, Sheet, Plate,Wire.
Surface Condition:Black/Turning/grinding
Round bar
Diameter1-16mm10-50mm50-180mm 180-300mm
ProcessCold DrawnHot RolledHot ForgedFree Forging
Flat bar
Thickness1-2.5mm1.5-20mm 20-300mm
WidthMax 800mmMax 800mmMax 800mm
ProcessCold DrawnHot RolledHot Forged
Quality Assured Supply
T1 high speed steel is supplied in accordance with our ISO 9001 : 2008 registration.