Metals -> High-temperature or heat-resistant steel and alloy -> High alloy high-temperature steel Characteristics of the material 20KH20N14S2 ( 20H20N14S2, 20Х20Н14С2 ).
Material : 20KH20N14S2 ( 20H20N14S2, 20Х20Н14С2 ) Classification : High alloy high-temperature steel
Chemical composition in % of the material 20KH20N14S2 ( 20H20N14S2, 20Х20Н14С2 ) . C Si Mn Ni S P Cr Ti Cu max 0.2 2 - 3 max 1.5 12 - 15 max 0.025 max 0.035 19 - 22 max 0.2 max 0.3
Mechanical properties under Т=20o С of the material 20KH20N14S2 ( 20H20N14S2, 20Х20Н14С2 ) .
Assortment Dimension Direct. s в s T
d 5
y KCU Heat treatment - mm - MPa MPa % % kJ / m2 - Bar Ж 60 590 295 35 55 Guenching 1000 - 1150o C, air, Sheet thin 590 40
Physical properties of the material 20KH20N14S2 ( 20H20N14S2, 20Х20Н14С2 ) . 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 7800 946 100 16 15 7760 1000 200 17 1051 300 18 1095 400 19 1130 500 21 1100 600 18.1 23 7550 1194 700 18.3 24 7510 1218 800 18.5 26 7470 1242 900 18.8 28 7420 1242 1000 19 T E 10- 5 a 10 6 l r C R 10 9
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]
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