SKH3 High Speed Steel
JIS SKH3 high speed tool steel manufacturers and suppliers,supplied in round rods,flat/square bars,plates,sheets and blocks.Produced as forged,rolled and cold drawn.
SKH3 steel is a Tungsten-Cobalt high speed tool steel according to Japan standard. SKH3 hss steel is similar to SKH2 steel but with added 5% cobalt to increase heat resistance. The red hardness of SKH3 steel is better. The surface hardness can reach 66-68HRC after heat treatment.
Carbon:0.73/0.83; Chromium:3.80/4.50; Vanadium:0.80/1.20;
Tungsten: 17.00/19.00; Cobalt:4.50/5.50;
3.Form & Size
1)Fuhongsteel are manufacturers and suppliers of SKH3 High Speed Steel round bars,flat/square bars,plates,sheets.
2)SKH3 High Speed Tool Steel Size Available(Length can be customized):
dia. 1-16mm(cold draw);
dia. 10-50mm(hot rolled);
dia. 50-180mm(hot forged);
dia. 180-300mm(free forging);
Thickness: 1-2.5mm(cold rolled); 1.5-20mm(hot rolled); 20-300mm(hot forged);
Width: Max 800mm;
5.JIS SKH3 HSS Steel Applications
SKH3 tool steel is generally used in high speed cutting tool, tools on automation machines, and high strength materials.
1)Preheat JIS SKH3 tool steel uniformly and slowly to 860-880°C.
2)Increase the forging temperature up to 1150-1200°C.
3)SKH3 steel should be cooled very slowly after forging.
SKH3 tool steel should be annealed after hot working. Increase the temperature of SKH3 high speed steel to 850°C(Max220°C per hour). Hold at the temperature and then cool slowly with the furnace. The annealed hardness achieved should be below 255HB.
1)Preheat the SKH3 hss steel to 500°C ;
2)Then increase the temperature until 880-900°C;
3)Heating the hardening temperature around 1180°C;
4)JIS SKH3 high speed steel must be heated throughly;
5)Quench in the warm oil,and then complete the quench;
6)SKH3 tool steel is always suitable for vacuum hardening.
1)Temper SKH3 high speed steel immediately after quenching;
2)Heat thoroughly and uniformly to the tempering temperature;
3)Hold for at least two hours (one hour per about 25mm);
4)Triple tempering is strongly recommended for SKH3 tool steel.
Enquiry for JIS SKH3 high speed steel round rods,flat/square bars,plates,sheets and blocks.