Huangshi Xiri Trading Co., Ltd.

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High speed tool steel-T1

Equivalent grades GB DIN AISI JIS      
W18Cr4V 1.3355  T1 SKH2
Chemical Composition C Si Mn Cr  V W Mo  
0.65-0.80 0.20-0.40 0.10-0.40 3.75-4.50 0.90-1.30 17.25-18.25 0.03max  
Available size Round Bar Diameter Length
70-600mm 2000-6000mm
Flat Bar Thickness Width Length
25-400mm 200-800mm 2000-6000mm
EF/ ESR+ hot forged/ hot rolled
Surface condition Black surface/ Grinded/ Machined
Annealed hardness HBS≤262
Characteristics high strength at elevated temperatures,good toughness, high compressive strength,good wear resistance.
Applications Tools for the machining of very hard metals, nickel, cobalt,titanium based alloys, broaches, cutters, twist drills, taps,cutting tools and cold work punches.
Heat Treatment The annealing temperature is 860 ~ 880 ℃. Generally, quenching divided into two stages. Preheated in 800 ~ 850 ℃(so as not to cause high thermal stress), and then heated to quenching temperature 1220 ~ 1250 ℃ rapidly, oil cooling. In order to make the transformation of retained austenite, further improve the hardness and wear resistance, the general should be 3 times tempering, tempering temperature 550 ~ 570 ℃, each holding 2 hours.

High speed tool steel-T1
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