Korea KS D 3587 (1991), STS316HTF Specialsteel Steel tubes for fired heater and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Class | Grade | Type | Standard | Country | Application | 
|---|---|---|---|---|---|---|
| Steel Grades | Specialsteel | STS316HTF | Austenite | KS | Korea | Steel tubes for fired heater | 
| C | Si | Mn | P | S | Cr | Ni | Mo | N | 
|---|---|---|---|---|---|---|---|---|
| ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 16.00 -18.00 | 10.00 -14.00 | 2.00 -3.00 | ≤ ≥ | 
| 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) | 
|---|---|---|---|---|---|---|
| 995 (≥) | 422 (≥) | 22 | 14 | 12 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 122 | 
| 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 | 
|---|---|---|---|---|---|---|---|
| 41 | - | - | 0.31 | - | |||
| 718 | 427 | - | 41.3 | 312 | - | ||
| 535 | - | 22 | 23.2 | 224 | 321 | 
Heat treated : 1815°C - 1153°C
| D 3587 (1991) | Steel tubes for fired heater | D-3587-(1991).pdf | 
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