Korea KS D 3757 (2003), NCF625TB Specialsteel Seamless nickel-chromium-iron alloy heat exchanger tubes and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
Category | Class | Grade | Standard | Country | Application |
---|---|---|---|---|---|
Steel Grades | Specialsteel | NCF625TB | KS | Korea | Seamless nickel-chromium-iron alloy heat exchanger tubes |
C | Si | Mn | P | S | Cr | Ni | Cu | Al | Ti | Fe | Nb+Ta | Mo |
---|---|---|---|---|---|---|---|---|---|---|---|---|
≤0.10 | ≤0.50 | ≤0.50 | ≤0.015 | ≤0.015 | 20.00 -23.00 | 58.00 - ≥ | ≤ ≥ | ≤0.40 | ≤0.40 | ≤5.00 | 3.15 -4.15 | 8.00 -10.00 |
Yield Rp0.2 (MPa) |
Tensile Rm (MPa) |
Impact KV/Ku (J) |
Elongation A (%) |
Reduction in cross section on fracture Z (%) |
As-Heat-Treated Condition | Brinell hardness (HBW) |
---|---|---|---|---|---|---|
685 (≥) | 675 (≥) | 14 | 42 | 11 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 224 |
Temperature (°C) |
Modulus of elasticity (GPa) |
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and | Thermal conductivity (W/m·°C) |
Specific thermal capacity (J/kg·°C) |
Specific electrical resistivity (Ω mm²/m) |
Density (kg/dm³) |
Poisson’s coefficient, ν |
---|---|---|---|---|---|---|---|
32 | - | - | 0.21 | - | |||
369 | 164 | - | 12.3 | 213 | - | ||
314 | - | 44 | 21.2 | 344 | 213 |
Heat treated : 1236°C - 1676°C
Grade | Standard | Country | Application |
---|---|---|---|
NCF625 | |||
NCF625 TP | |||
NCF625 TB | |||
NCF625 TB | |||
NCF625 TP | |||
NCF625 | |||
NCF625 | |||
NCF625 | |||
NCF625TB | |||
NCF625TB | |||
NCF625TP | |||
NCF625TP |
D 3757 (2003) | Seamless nickel-chromium-iron alloy heat exchanger tubes | D-3757-(2003).pdf |
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