Metals -> High-temperature or heat-resistant steel and alloy -> Hidh-temperature or heat-resistant alloy Characteristics of the material KHN55VMKYU ( HN55VMKJU, ÕÍ55ÂÌÊÞ ).
Material : KHN55VMKYU ( HN55VMKJU, ÕÍ55ÂÌÊÞ ) Classification : Hidh-temperature or heat-resistant alloy
Chemical composition in % of the material KHN55VMKYU ( HN55VMKJU, ÕÍ55ÂÌÊÞ ) . Fe C Si Mn Ni S P Cr Ce Mo W Co Al B max 1.5 max 0.1 max 0.6 max 0.3 52.234 - 62.6 max 0.011 max 0.015 8.5 - 10.5 max 0.02 6.5 - 8 6 - 7.5 11 - 13 5.4 - 6.2 max 0.02
Mechanical properties under Ò=20o Ñ of the material KHN55VMKYU ( HN55VMKJU, ÕÍ55ÂÌÊÞ ) .
Assortment Dimension Direct. s â s T
d 5
y KCU Heat treatment - mm - MPa MPa % % kJ / m2 - Bar longitudinal 1100 750 9 11 200 Heating 1220o C, 4 - 6h,Cooling air, Ageing 950o C, 8h,Cooling air,
Physical properties of the material KHN55VMKYU ( HN55VMKJU, ÕÍ55ÂÌÊÞ ) . 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 2.1 8450 100 11.8 8.8 200 12.2 10.5 300 12.7 11.8 400 13.1 13.8 500 1.88 13.4 15.9 600 1.83 13.6 18.4 700 1.76 14.1 20.9 800 1.69 14.8 23.4 900 15.7 25.9 1000 17 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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