Stainless Steel
Ferritic 439

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Specifications (ASTM/ASME)
Alloy UNS Designation Material
Specification
Tubing
Specification
Pipe
Specification
439 S43035 A 240/SA-240 A 268/SA-268 ---
Chemical Composition (%)
Alloy 439
UNS Designation S43035
Carbon (C) max. 0.030
Manganese (Mn) max. 1.00
Phosphorus (P) max. 0.040
Sulfur (S) max. 0.030
Silicon (Si) max. 1.00
Chromium (Cr) 17.0 - 19.0
Nickel (Ni) max. 0.50
Nitrogen (N) max. 0.030
Aluminum (Al) max. 0.15
Titanium (Ti) 0.20 + 4 x (C + N) min., 1.10 max.
Iron (Fe) Balance
Typical Physical & Mechanical Properties - Annealed Condition (Room Temperature)
Alloy UNS Designation Minimum Tensile Strength
Minimum Yield
Strength
0.2% Offset
Minimum Percent (%)
Elongation in
2 inches (50.8 mm)
(psi) (MPa) (psi) (MPa)
439 S43035 60,000 415 30,000 205 20

 

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