Characteristics of the material 9KH2 ( 9H2, 9Х2 ).
9KH2 ( 9H2, 9Х2 )
Tool steel for roller
Chemical composition in % of the material 9KH2 ( 9H2, 9Х2 ) .
0.85 - 0.95
0.25 - 0.5
0.2 - 0.7
1.7 - 2.1
Temperature of critical points of the grade 9KH2 ( 9H2, 9Х2 ).
Ac1 = 756 , Ac3(Acm) = 783
Technological properties of the material 9KH2 ( 9H2, 9Х2 ) .
is not used.
- welding is done without heating and subsequent heat treeting
- welding is possible under heating up to 100-120 grade and subsequent heat treeting
- obtaining the quality welding needs the additional operations:heating up to 200-300 grade; the heat treeting ia annealing
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