Metals -> High-temperature or heat-resistant steel and alloy -> High alloy high-temperature steel Characteristics of the material 12KH12MVFBR ( 12H12MVFBR, 12Õ12ÌÂÔÁÐ ).
Material : 12KH12MVFBR ( 12H12MVFBR, 12Õ12ÌÂÔÁÐ ) Classification : High alloy high-temperature steel
Chemical composition in % of the material 12KH12MVFBR ( 12H12MVFBR, 12Õ12ÌÂÔÁÐ ) . C Si Mn Ni S P Cr Mo W V Nb B 0.1 - 0.15 max 0.5 0.5 - 1 0.5 - 1 max 0.025 max 0.025 11 - 13 0.7 - 1 0.55 - 0.85 0.15 - 0.3 0.15 - 0.3 max 0.08
Mechanical properties under Ò=20o Ñ of the material 12KH12MVFBR ( 12H12MVFBR, 12Õ12ÌÂÔÁÐ ) .
Assortment Dimension Direct. s â s T
d 5
y KCU Heat treatment - mm - MPa MPa % % kJ / m2 - Blank for pipe longitudinal 880 740 20 64 1300 Normalizing 1000 - 1050o C,Cooling air, Drawing 750 - 780o C, 3h,Cooling air, Pipe longitudinal 820 640 17 Normalizing 1000 - 1050o C,Cooling air, Drawing 750 - 780o C, 3h,Cooling air,
Physical properties of the material 12KH12MVFBR ( 12H12MVFBR, 12Õ12ÌÂÔÁÐ ) . 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 2.28 27.6 7850 100 11.15 21.8 200 2.15 11.13 24 300 2.09 11.42 25.1 400 1.95 11.8 26.3 500 1.88 12 27.2 600 1.73 12.15 28 700 1.55 12.15 28.9 800 12.65 900 11.6 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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