Metals -> High-temperature or heat-resistant steel and alloy -> High alloy high-temperature steel Characteristics of the material 10KH7MVFBR ( 10KH7MVFBR, 10Õ7ÌÂÔÁÐ ).
Material : 10KH7MVFBR ( 10KH7MVFBR, 10Õ7ÌÂÔÁÐ ) Classification : High alloy high-temperature steel
Chemical composition in % of the material 10KH7MVFBR ( 10KH7MVFBR, 10Õ7ÌÂÔÁÐ ) . C Ni S P Cr Mo V Nb B 0.07 - 0.12 0.5 - 1 max 0.025 max 0.025 6 - 8 0.7 - 1 0.3 - 0.5 0.15 - 0.4 max 0.005
Temperature of critical points of the grade 10KH7MVFBR ( 10KH7MVFBR, 10Õ7ÌÂÔÁÐ ).
Ac1 = 860 , Ac3 (Acm ) = 905 , Ar3 (Arcm ) = 435 , Ar1 = 350
Mechanical properties under Ò=20o Ñ of the material 10KH7MVFBR ( 10KH7MVFBR, 10Õ7ÌÂÔÁÐ ) .
Assortment Dimension Direct. s â s T
d 5
y KCU Heat treatment - mm - MPa MPa % % kJ / m2 - Pipe longitudinal 690 580 20 65 1000 Normalizing 980 - 100o C,Cooling air, Drawing 700 - 730o C, 3h,Cooling air, Blank for pipe longitudinal 690 610 18 59 530 Annealing 800 - 830o C,Cooling oven, 30 o C/h,
Physical properties of the material 10KH7MVFBR ( 10KH7MVFBR, 10Õ7ÌÂÔÁÐ ) . 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 2.46 25.5 7850 510 100 2.396 10.25 200 2.39 11.6 300 2.195 12.4 400 2.006 12.75 500 1.92 13.25 600 1.85 13.6 700 1.685 13.4 800 1.445 T E 10- 5 a 10 6 l r C R 10 9
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]
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