Metals -> High-temperature or heat-resistant steel and alloy -> Hidh-temperature or heat-resistant alloy Characteristics of the material KHN70VMTYUF ( HN70VMTJUF, ÕÍ70ÂÌÒÞÔ ).
Material : KHN70VMTYUF ( HN70VMTJUF, ÕÍ70ÂÌÒÞÔ ) Classification : Hidh-temperature or heat-resistant alloy
Chemical composition in % of the material KHN70VMTYUF ( HN70VMTJUF, ÕÍ70ÂÌÒÞÔ ) . Fe C Si Mn Ni S P Cr Ce Mo W V Ti Al B max 5 max 0.12 max 0.6 max 0.5 60.621 - 75.2 max 0.009 max 0.015 13 - 16 max 0.02 2.5 - 4 5 - 7 0.2 - 1 1.7 - 2.2 2.4 - 2.9 max 0.015
Comment: Ni is a basis; the percentage of Ni is given approximately. Mechanical properties under Ò=20o Ñ of the material KHN70VMTYUF ( HN70VMTJUF, ÕÍ70ÂÌÒÞÔ ) .
Assortment Dimension Direct. s â s T
d 5
y KCU Heat treatment - mm - MPa MPa % % kJ / m2 - Bar longitudinal 1050 720 10 12 200
Brinell hardness of the material KHN70VMTYUF ( HN70VMTJUF, ÕÍ70ÂÌÒÞÔ ) (quenching) , HB 10 -1 = 299 - 341 MPa
Physical properties of the material KHN70VMTYUF ( HN70VMTJUF, ÕÍ70ÂÌÒÞÔ ) . 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 8.8 8470 100 10.4 10.5 200 11.7 12.6 300 12.4 14.2 400 12.9 16.3 500 1.7 13.2 18.4 600 1.65 13.6 20.5 700 1.55 14 22.6 800 1.45 14.5 25.1 900 1.3 15 28 T E 10- 5 a 10 6 l r C R 10 9
Technological properties of the material KHN70VMTYUF ( HN70VMTJUF, ÕÍ70ÂÌÒÞÔ ) . Weldability: hard weldability.
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]
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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