USA AMS SA-541/SA-541M, SA-541 Class 8A Specialsteel Quenched and Tempered Carbon and Alloy Steel Forgings for Pressure Vessel Components and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Class | Grade | Type | Standard | Country | Application | 
|---|---|---|---|---|---|---|
| Steel Grades | Specialsteel | SA-541 Class 8A | Precipitation-Hardening | AMS | USA | Quenched and Tempered Carbon and Alloy Steel Forgings for Pressure Vessel Components | 
| C | Si | Mn | P | S | Ni | Cr | Al | Cu | Ti | Fe | N | Mo | W | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ≤0.20 | ≤0.50 | ≤1.00 | ≤ ≥ | ≤ ≥ | ≤ ≥ | ≤12.50 | ≤ ≥ | ≤ ≥ | ≤ ≥ | ≤remaining | ≤ ≥ | ≤ ≥ | ≤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) | 
|---|---|---|---|---|---|---|
| 557 (≥) | 894 (≥) | 23 | 32 | 41 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 131 | 
| 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 | 
|---|---|---|---|---|---|---|---|
| 43 | - | - | 0.31 | - | |||
| 919 | 224 | - | 32.3 | 441 | - | ||
| 313 | - | 14 | 22.2 | 441 | 113 | 
Heat treated : 1984°C - 1858°C
| Grade | Standard | Country | Application | 
|---|---|---|---|
| 1.4418 | |||
| 1.4418 | |||
| S41800 | |||
| S41800 | |||
| 418 | |||
| S41800 | |||
| AMS 6418F | |||
| UNS W50418 | |||
| UNS W21418 | |||
| SCM418 | |||
| SCM418H | |||
| SCM418TK | |||
| 418(S41800) | |||
| Type418(GreekAscollOy) | |||
| S41800 | |||
| UNS S41800 | |||
| 1.4418 | |||
| 1.4418 | |||
| GH4180 | |||
| GH4180 | 
| SA-541/SA-541M | Quenched and Tempered Carbon and Alloy Steel Forgings for Pressure Vessel Components | SA-541-SA-541M.pdf | 
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