Mechanical properties under Т=20oС of the material 30KHGFRL ( 30HGFRL, 30ХГФРЛ ) .
Assortment
Dimension
Direct.
sв
sT
d5
y
KCU
Heat treatment
-
mm
-
MPa
MPa
%
%
kJ / m2
-
Casting
to 100
700
500
12
25
400
Guenching 900 - 920oC,Drawing 650 - 670oC,
Brinell hardness of the material 30KHGFRL ( 30HGFRL, 30ХГФРЛ ) (quenching, tempering) ,
HB 10 -1= 196 - 255 MPa
Technological properties of the material 30KHGFRL ( 30HGFRL, 30ХГФРЛ ) .
Temper brittleness:
predisposed
Technological properties of the material 30KHGFRL ( 30HGFRL, 30ХГФРЛ ) .
Linear shrinkage, % :
1.5 - 2
Specification :
Mechanical properties :
sв
- 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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