Metals -> Corrosion-resistant (stainless) steel -> Corrosion-resistant high-temperature steel Characteristics of the material 40KH13 ( 40H13, 40Х13 ).
Material : 40KH13 ( 40H13, 40Х13 ) Substitute: 30Х13 Classification : Corrosion-resistant high-temperature steel
Chemical composition in % of the material 40KH13 ( 40H13, 40Х13 ) . C Si Mn Ni S P Cr 0.35 - 0.44 max 0.6 max 0.6 max 0.6 max 0.025 max 0.03 12 - 14
Temperature of critical points of the grade 40KH13 ( 40H13, 40Х13 ). Mechanical properties under Т=20o С of the material 40KH13 ( 40H13, 40Х13 ) .
Assortment
Dimension
Direct.
s в
s T
d 5
y
KCU
Heat treatment - mm - MPa MPa % % kJ / m2 - Bars 1700 1145 5.5 33.5 113 Guenching 1030 - 1050o C, air, Heating 530o C, 2h, Bars 1165 960 13 47.5 210 Guenching 1030 - 1050o C, oil, Heating 550o C, 10h,
Brinell hardness of the material 40KH13 ( 40H13, 40Х13 ) (annealing) , HB 10 -1 = 143 - 229 MPa Brinell hardness of the material 40KH13 ( 40H13, 40Х13 ) (quenching, tempering) , HB 10 -1 = 460 - 550 MPa
Physical properties of the material 40KH13 ( 40H13, 40Х13 ) . 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 2.18 25 7650 461 590 100 2.14 10.8 26 7630 482 650 200 2.06 11.9 27.2 7600 523 710 300 1.98 12.3 28.3 7570 565 790 400 1.88 13 29.1 7540 607 860 500 1.76 13.6 29.1 7510 674 940 600 1.63 13.5 29.1 7480 775 1000 700 1.48 13.8 28.3 7450 988 1120 800 1.4 14.6 27.9 7420 825 1180 900 28.5 691 1160 T E 10- 5 a 10 6 l r C R 10 9
Technological properties of the material 40KH13 ( 40H13, 40Х13 ) . Weldability: is not used.
Specification :
Mechanical properties :
s в - 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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