| Standard: | AISI,JIS,GB,BS,DIN,API,EN,ASTM | Technique: | Hot Rolled,Cold Rolled,Cold Drawn,ERW,Forged,Saw,Extruded,EFW,Spring | Shape: | U Channel,Square,C Channel,Hexagonal,Round,Rectangular,Oval,LTZ |
| Surface Treatment: | Galvanized,Coated,Copper Coated,Color Coated,Oiled,Dry,Chromed Passivation,Polished,Bright,Black,PVDF Coated | Steel Grade: | Q195,Q215,Q235,Q215B,Q235B,RHB335,HRB400,200 Series,300 Series,400 Series,600 Series,SS400-SS490,10#,20#,A53(A,B) | Certification: | ISO,SGS,CE |
| Thickness: | as required | Length: | as required | Net Weight: | as required |
1. HSS (M2/W6Mo5Cr4V2/SKH-51/KM-2/1.3342/S600) Round Bar
a)Characteristic:Tungsten-molybdenum high speed steel developed by China,high performance in toughness ,hardness, high temperature hardness.
b)Anneal temperature: 840-860
Relief annealing temperature: 720-760
Hardening temperature: 1210-1230
Hardening medium: salt bath under 600,aslo use oil cooling or air cooling
Normal temper temperation: 540-560 RC Rockwell Hardness after hardening and temperature: 63-66
c)Production Capacity: 1000 Tons/Month
d)Tech:EAF+LF+VD+ESR
e)High strength at elevated temperatures
2. Chemical composition
| C | Si | Mn | W | Mo | Cr | V | P | S |
| 0.80-0.90 | 0.20-0.45 | 0.15-0.40 | 5.50-6.75 | 4.50-5.50 | 3.80-4.40 | 1.75-2.20 | ≤0.030 | ≤0.030 |
3. Process condition
Forged + Annealed + Machining (Peeled/Turned)
Rockwell Hardness: 64-66
Quenching Temperature: 1190-1230
4. Available sizes
Diameter:20mm-80(85)mm(rolled round steel),90-350(400)mm(forged round steel)
Length: optional
5. Heat treatment
1.Annealing after forging:heat to 840-860°c,keep 2-4H,coolbelow to 500°c,hardness≤285HBS
2.Isothermal annealing after forging:heat to 540-860°c,keep temperature 2-4H,furnacecold to 740-760°c,keep temperature 4-6H,to 500°c,hardness≤255HBS.
6. Applications
Can be used in the manufacture of high capacity cutting tools to bear impact force ,such as gear shaper cutter, milling cutter,screw tap,drill bit etc.Also can be used in manufacture of large scale and thermoplasticity shaped cutting tools and antiabrasive cutting tools under high load
7. Packing situation
Standard seaworthy packing or as customers' requirement.
8. Delivery time
30 days after order is confirmed.
9. Products
