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ASME SA336 F5N High Temperature And Pressure Alloy Steel Forging For Heat Exchanger Baffle
ASME SA336 F5N is a chromium-molybdenum alloy steel forging for high temperature and high pressure. It follows the ASME SA-336/SA-336M standard. This is a standard specifically for alloy steel and stainless steel forgings for pressure vessels.
F5N material grade. The N suffix usually indicates that the material has undergone a specific normalizing, heat treatment.
Pressure vessel tube sheets made of SME SA-336 F5N material are key components of high temperature and high pressure hydrogen equipment
Mechanical properties
| 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) |
| 831 (≥) | 636 (≥) | 41 | 44 | 24 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 342 |
Physical properties
| 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 |
| 44 | - | - | 0.33 | - | |||
| 633 | 595 | - | 23.3 | 142 | - | ||
| 716 | - | 22 | 42.2 | 413 | 223 |
Application:
Petroleum refining: Hydroprocessing reactors
Large forgings such as barrels, heads, flanges, tube sheets, support rings, etc. of hydrocracking reactors.
Its excellent resistance to hydrogen corrosion and temper embrittlement is crucial here.
Coal chemical industry: Key high temperature and high pressure components of coal gasifiers.
Others: High-pressure steam systems, synthetic ammonia, high temperature and high pressure heat exchangers, etc., which require high strength and toughness and high temperature corrosion resistance.
