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UNI X 75 W 18 KU

Description

UNI UNI X 75 W 18 KU Tool Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel: UNI X 75 W 18 KU
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel UNI X 75 W 18 KU UNI
T12A
T3S
U1
U10E
UNI 130505 KU
UNI 58 WCr 9 KU
UNI 88 Mn V 8 KU
UNI KU
UNI X 21O Cr 13 KU
UNI X 28 W O9 KU

Chemical composition(mass fraction)(wt.%) of the UNI X 75 W 18 KU

Element Weight %
C 0.65-0.80
Mn 0.10-0.40
Si 0.20-0.40
Cr 3.75-4.00
Ni 0.3
W 17.25-18.75
V 0.90-1.30
Cu 0.25
P 0.03
S 0.03

Mechanical Properties of steel grade UNI X 75 W 18 KU

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)
556 (≥) 483 (≥) 22 11 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 224

Physical Properties of steel grade UNI X 75 W 18 KU

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
32 - -     0.21 -  
542 145 - 43.3 133   -  
844 - 13 24.2   441 133

Heat Treatment of steel grade UNI X 75 W 18 KU

Heat treated : 1322°C - 1455°C

Technological Curves of steel grade UNI X 75 W 18 KU

Cross Reference Table (Equivalent Grade) of UNI X 75 W 18 KU

Grade Standard Country Application
UnitempAF2-1 USA Martensitic special steel
UnitempHS AISI USA Martensitic special steel
Q195 China Engineering and welding
Q215 China Engineering and welding
Q215 B China Engineering and welding
Q235 China Engineering and welding
Q235 B China Engineering and welding
Q235 C China Engineering and welding
Q235 D China Engineering and welding
Q255 A China Engineering and welding
Q255 B China Engineering and welding
Q275 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 1005 ASTM USA General use carbon steel bar
UNS G10050 UNS USA General use carbon steel bar

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