Korea KS D 3577 (2007), STS436LTB Specialsteel Stainless steel for boiler and heat exchanger tubes and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Class | Grade | Type | Standard | Country | Application |
|---|---|---|---|---|---|---|
| Steel Grades | Specialsteel | STS436LTB | Ferrite | KS | Korea | Stainless steel for boiler and heat exchanger tubes |
| C | Si | Mn | P | S | Cr | Ni | Mo | N | Ti,Nb,Zr |
|---|---|---|---|---|---|---|---|---|---|
| ≤0.025 | ≤1.00 | ≤1.00 | ≤0.040 | ≤0.030 | 16.00 -19.00 | ≤0.60 | 0.75 -1.50 | ≤0.025 | 8×(C%+N%) -0.80 |
| 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) |
|---|---|---|---|---|---|---|
| 475 (≥) | 176 (≥) | 42 | 22 | 42 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 221 |
| 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 |
|---|---|---|---|---|---|---|---|
| 22 | - | - | 0.12 | - | |||
| 931 | 257 | - | 43.3 | 244 | - | ||
| 986 | - | 31 | 33.2 | 413 | 143 |
Heat treated : 1313°C - 1632°C
| D 3577 (2007) | Stainless steel for boiler and heat exchanger tubes | D-3577-(2007).pdf |
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