Characteristics of the material 3KH2N2MVF ( 3H2N2MVF, 3Õ2Í2ÌÂÔ ).
Material :
3KH2N2MVF ( 3H2N2MVF, 3Õ2Í2ÌÂÔ )
Classification :
Die tool steel
Chemical composition in % of the material 3KH2N2MVF ( 3H2N2MVF, 3Õ2Í2ÌÂÔ ) .
C
Si
Mn
Ni
S
P
Cr
Mo
W
V
0.32 - 0.38
0.17 - 0.37
0.5 - 0.8
1.4 - 1.8
max 0.03
max 0.03
2 - 2.5
0.8 - 1
0.8 - 1.2
0.2 - 0.3
Mechanical properties under Ò=20oÑ of the material 3KH2N2MVF ( 3H2N2MVF, 3Õ2Í2ÌÂÔ ) .
Assortment
Dimension
Direct.
sâ
sT
d5
y
KCU
Heat treatment
-
mm
-
MPa
MPa
%
%
kJ / m2
-
Forging
to 700
tangent
1400
1300
7
Normalizing and drawing
Technological properties of the material 3KH2N2MVF ( 3H2N2MVF, 3Õ2Í2ÌÂÔ ) .
Weldability:
hard weldability.
Flakes :
weakly predisposed
Temper brittleness:
weakly predisposed
Specification :
Mechanical properties :
sâ
- Tensile strength , [MPa]
sT
- Yield stress, [MPa]
d5
- Specific elongation at fracture , [ % ]
y
- Reduction of area , [ % ]
KCU
- Impact strength , [ kJ / m2]
HB
- Brinell hardness , [MPa]
Weldability :
without limitations
- welding is done without heating and subsequent heat treeting
limited weldability
- welding is possible under heating up to 100-120 grade and subsequent heat treeting
hard weldability
- obtaining the quality welding needs the additional operations:heating up to 200-300 grade; the heat treeting ia annealing
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