High speed die steel(HSS/HS)/round bar
1)W6Mo5Cr4V2/JIS SKH51 /AISI M2/DIN HS6-5-2(1.3343)
2)Smelting : EAF+LF+VD+ESR
high speed die steel round bar
W6Mo5Cr4V2/JIS SKH51 /AISI M2/DIN HS6-5-2(1.3343)
skh51 high speed die steelis a general purpose molybdenum-type high speed steel exhibiting well-balanced toughness,
wear resistance and red hardness properties.
1.Chemical Composition
C | Si | Mn | S | P | Cr | V | W | Mo |
0.8-0.9 | 0.2-0.45 | 0.15-0.4 | ≤0.03% | ≤0.03% | 3.8-4.4 | 1.75-2.2 | 5.5-6.75 | 4.5-5.5 |
2.Dimension(mm)
1)Round Bar: Diameter 20-400mm
2)Flat Bar: Thickness20-200mm*Width60-500mm
3)Plate:Thickness0.5-200mm
Note:we can produce special specification products as per customer's requiremen
3.Hardness
Tempering °C | 500 | 550 | 600 | 650 |
HRC | 64 | 65 | 64 | 61 |
4.Smelting Process: EAF+LF+VD+ESR
5.Surface TreatmentsPeeling/Turned/Grinding/Polishing
high speed die steel round bar
can be nitrided, steam tempered or titanium-nitride coated if desired.
If the CVD TiN treatment is used, care is required in vacuum hardening
6.Inspecting:UTS according to SEP1921 C/c or GB/T6402
7.Quality Control
test products mechanical and chemical properties in every procedure
(third party inspection institution:ISO9001-2008,CIQ,SGS,ITS,BV,etc)
8.Certificate
Mill Test Certificate(MTC)
Mangnaflux Test
Ultrasonic Test
