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Description

SKT 3 Tool Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel: SKT 3
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel SKT 3
X30WCrV9-3
SKD 6
SKD 61
X40CrMoV5-1
SKD 62
X35CrWMoV5
SKD 7
32CrMoV3-3
SKD 8
X38CrCoWV4-4-4

Chemical composition(mass fraction)(wt.%) of the SKT 3

C
Si
Mn
P
S
Cr Ni
 0.5-0.6 0.35  0.6  0.03  0.02   0.9-1.2 0.25-0.6 
Mo Al Cu Nb Ti V Ce
 0.3-0.5   ≤0.25      ≤ 0.2  
N Co Pb B Other    
             
             

Mechanical Properties of steel grade SKT 3

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)
111 (≥) 916 (≥) 34 43 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 444

Physical Properties of steel grade SKT 3

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
44 - -     0.34 -  
269 841 - 41.3 212   -  
982 - 23 23.2   324 224

Heat Treatment of steel grade SKT 3

Heat treated : 1312°C - 1757°C

Technological Curves of steel grade SKT 3

Cross Reference Table (Equivalent Grade) of SKT 3

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
Q235 China Engineering and welding
Q235 B China Engineering and welding
Q235 C China Engineering and welding
Q235 D China Engineering and welding
Q235q C China Bridge structure with steel
Q235q D China Bridge structure with steel
Q345q E China Bridge structure with steel
Q345q C China Bridge structure with steel
ASTM 1030 ASTM USA General use carbon steel bar
UNS G10300 UNS USA General use carbon steel bar
ASTM 1013 ASTM USA General use carbon steel bar
UNS G10130 UNS USA General use carbon steel bar
T13 China Carbon tool steel
5Cr3Mn1SiMo1V China Alloy tool steel - Impact resistance tool steel
3Cr2W8V China Alloy tool steel - hot-work die steel
5Cr4Mo3SiMnVA1 China Alloy tool steel - hot-work die steel
3Cr3Mo3W2V China Alloy tool steel - hot-work die steel

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