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Description

SKT 6 Tool Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel: SKT 6
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel SKT 6
X40CrMoV5-1
SKD 62
X35CrWMoV5
SKD 7
32CrMoV3-3
SKD 8
X38CrCoWV4-4-4
SKT 3
SKT 4
55NiCrMoV7

Chemical composition(mass fraction)(wt.%) of the SKT 6

C
Si
Mn
P
S
Cr Ni
 0.4-0.5 0.1-0.4  0.2-0.5  0.03  0.02   1.2-1.5  3.8-4.3
Mo Al Cu Nb Ti V Ce
    ≤ 0.25        
N Co Pb B Other    
             
             

Mechanical Properties of steel grade SKT 6

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
383 (≥) 749 (≥) 31 21 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 142

Physical Properties of steel grade SKT 6

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
14 - -     0.13 -  
985 251 - 41.3 111   -  
197 - 14 14.2   131 321

Heat Treatment of steel grade SKT 6

Heat treated : 1976°C - 1175°C

Technological Curves of steel grade SKT 6

Cross Reference Table (Equivalent Grade) of SKT 6

Grade Standard Country Application
SKT3 JIS Japan Hot-work die steel
SKT4 JIS Japan Hot-work die steel
SKT6 JIS Japan Hot-work die steel
ASTM 1006 ASTM USA General use carbon steel bar
UNS G10060 UNS USA General use carbon steel bar
UNS G10160 UNS USA General use carbon steel bar
ASTM 1016 ASTM USA General use carbon steel bar
Cr06 China Alloy tool steel - Measuring tool steel cutting tools
6CrW2Si China Alloy tool steel - Impact resistance tool steel
6CrMnSi2Mo1V China Alloy tool steel - Impact resistance tool steel
6W6Mo5Cr4V China Alloy tool steel - Impact resistance tool steel
W6Mo5Cr4V2 China High-speed tool steel
CW6Mo5Cr4V2 China High-speed tool steel
W6Mo5Cr4V3 China High-speed tool steel
CW6Mo5Cr4V3 China High-speed tool steel
W6Mo5Cr4V2Co5 China High-speed tool steel
W6Mo5Cr4V2Al China High-speed tool steel
YG6X China Hard alloy tungsten cobalt class
YG6A China Hard alloy tungsten cobalt class
YG6 China Hard alloy tungsten cobalt class

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