Metals -> Casting steel -> Casting steel for general purposes Characteristics of the material 35KHML ( 35HML, 35ÕÌË ).
Material : 35KHML ( 35HML, 35ÕÌË ) Substitute: 30ÕÌË, 35ÕÍË, 40ÕÃÐË Classification : Casting steel for general purposes
Chemical composition in % of the material 35KHML ( 35HML, 35ÕÌË ) . C Si Mn Ni S P Cr Mo Cu 0.3 - 0.4 0.2 - 0.4 0.4 - 0.9 max 0.3 max 0.04 max 0.04 0.8 - 1.1 0.2 - 0.3 max 0.3
Temperature of critical points of the grade 35KHML ( 35HML, 35ÕÌË ).
Ac1 = 757 , Ac3 (Acm ) = 802 , Ar3 (Arcm ) = 750 , Ar1 = 693
Mechanical properties under Ò=20o Ñ of the material 35KHML ( 35HML, 35ÕÌË ) .
Assortment
Dimension
Direct.
s â
s T
d 5
y
KCU
Heat treatment - mm - MPa MPa % % kJ / m2 - Casting to 100 600 400 12 20 300 Normalizing 860 - 880o C,Drawing 600 - 650o C,
Brinell hardness of the material 35KHML ( 35HML, 35ÕÌË ) , HB 10 -1 = 163 - 225 MPa Brinell hardness of the material 35KHML ( 35HML, 35ÕÌË ) (quenching, tempering) , HB 10 -1 = 206 - 255 MPa
Physical properties of the material 35KHML ( 35HML, 35ÕÌË ) . T E 10- 5 a 10 6 l r C R 10 9 Grade MPa 1/Grade Watt/(m·Grade) kg/m3 J/(kg·Grade) Ohm·m 20 2.15 47 7840 242 100 2.12 12.2 44 479 273 200 2.07 12.6 42 500 337 300 2.03 13.4 40 512 438 400 1.92 14.3 37 529 549 500 1.79 14.5 34 550 674 600 1.66 14.6 31 580 830 700 1.41 14.7 28 617 983 800 1.3 12.2 27 689 1120 900 12.7 27 685 1201 T E 10- 5 a 10 6 l r C R 10 9
Technological properties of the material 35KHML ( 35HML, 35ÕÌË ) . Weldability: limited weldability. Flakes : predisposed Temper brittleness: not predisposed
Technological properties of the material 35KHML ( 35HML, 35ÕÌË ) . Linear shrinkage, % : 2.2 - 2.3
Specification :
Mechanical properties :
s â - Tensile strength , [MPa]
s T - Yield stress, [MPa]
d 5 - Specific elongation at fracture , [ % ]
y - Reduction of area , [ % ]
KCU - Impact strength , [ kJ / m2 ]
HB - Brinell hardness , [MPa]
Physical properties :
T - Test temperature , [Grade]
E - Young modulus , [MPa]
a - Coefficient of linear expansion
(range 20o - T ) , [1/Grade]
l - Termal (heat) condition coefficient , [Watt/(m·Grade)]
r - Density , [kg/m3 ]
C - Specific heat
( range 20o - T ), [J/(kg·Grade)]
R - Electrical resistance , [Ohm·m]
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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