Metals -> Corrosion-resistant (stainless) steel -> Corrosion-resistant high-temperature steel Characteristics of the material 12KH13 ( 12H13, 12Х13 ).
Material : 12KH13 ( 12H13, 12Х13 ) Substitute: 20Х13 Classification : Corrosion-resistant high-temperature steel
Chemical composition in % of the material 12KH13 ( 12H13, 12Х13 ) . C Si Mn Ni S P Cr 0.09 - 0.15 max 0.8 max 0.8 max 0.6 max 0.025 max 0.03 12 - 14
Temperature of critical points of the grade 12KH13 ( 12H13, 12Х13 ).
Ac1 = 730 , Ac3 (Acm ) = 850 , Ar3 (Arcm ) = 820 , Ar1 = 700
Mechanical properties under Т=20o С of the material 12KH13 ( 12H13, 12Х13 ) .
Assortment
Dimension
Direct.
s в
s T
d 5
y
KCU
Heat treatment - mm - MPa MPa % % kJ / m2 - Sheet trick 500 350 21 Sheet thin 400 21 Bars 600 420 20 60 Pipe hot strain 400 21 Wire 500 14 Band 400 17 Pipe cooling strain 400 220 Bar longitudinal 600 420 20 60 900 Guenching 1000 - 1050o C, air, Drawing 700 - 790o C, air,
Brinell hardness of the material 12KH13 ( 12H13, 12Х13 ) (annealing) , HB 10 -1 = 121 - 187 MPa Brinell hardness of the material 12KH13 ( 12H13, 12Х13 ) (quenching) , HB 10 -1 = 235 MPa Brinell hardness of the material 12KH13 ( 12H13, 12Х13 ) (quenching, tempering) , HB 10 -1 = 187 - 229 MPa
Physical properties of the material 12KH13 ( 12H13, 12Х13 ) . 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 2.17 7720 506 100 2.12 10.2 28 7700 473 584 200 2.06 11.2 28 7670 487 679 300 1.98 11.4 28 7640 506 769 400 1.89 11.8 28 7620 527 854 500 1.8 12.2 27 7580 554 938 600 12.4 26 7550 586 1021 700 12.7 26 7520 636 1103 800 13 25 7490 657 900 10.8 666 1000 11.7 T E 10- 5 a 10 6 l r C R 10 9
Technological properties of the material 12KH13 ( 12H13, 12Х13 ) . Weldability: limited weldability. Temper brittleness: predisposed
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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