ASTM A182 – Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service
Grade: F51 Ferritic-Austenitic Stainless Steel
Chemical Requirements max, %
Elements | F51 (S31803) |
Carbon | 0.030 |
Manganese | 2.00 |
Phosphorus | 0.030 |
Sulfur | 0.020 |
Silicon | 1.00 |
Nickel | 4.5-6.5 |
Chromium | 21.0-23.0 |
Molybdenum | 2.5-3.5 |
Nitrogen | 0.08-0.20 |
Tensile and Hardness Requirements
Grade Symbol | F51 (S31803) |
Tensile Strength,min, ksi [Mpa] | 90[620] |
Yield Strength, min,ksi [MPa] | 65[450] |
Elongation in 2 in.[50 mm] or 4D,min, % | 25 |
Reduction of Area, min, % | 45 |
Brinell HardnessNumber | … |