Non-ferrous Metal

Ferritic / Martensitic Welded Stainless Steel Tube ASTM A268 / A268M

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Specifications:

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Specifications (ASTM/ASME)?Ferritic and Martensitic Stainless Steel Tubing |
Alloy | UNS Designation | Material
Specification | Tubing
Specification | Pipe
Specification |
409 | S40910 | A 240/SA-240 | A 268/SA-268 | --- |
409 | S40920 | A 240/SA-240 | A 268/SA-268 | --- |
409 | S40930 | A 240/SA-240 | A 268/SA-268 | --- |
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Alloy | UNS Designation | Material
Specification | Tubing
Specification | Pipe
Specification |
439 | S43035 | A 240/SA-240 | A 268/SA-268 | --- |
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Chemical Composition:
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Chemical Composition (%)?Ferritic and Martensitic Stainless Steel Tubing |
Alloy | 409 | 409 | 409 |
UNS Designation | S40910 | S40920 | S40930 |
Carbon (C) max. | 0.030 | 0.030 | 0.030 |
Manganese (Mn) max. | 1.00 | 1.00 | 1.00 |
Phosphorus (P) max. | 0.040 | 0.040 | 0.040 |
Sulfur (S) max. | 0.020 | 0.020 | 0.020 |
Silicon (Si) max. | 1.00 | 1.00 | 1.00 |
Chromium (Cr) | 10.5 - 11.7 | 10.5 - 11.7 | 10.5 - 11.7 |
Nickel (Ni) max. | 0.50 | 0.50 | 0.50 |
Nitrogen (N) max. | 0.030 | 0.030 | 0.030 |
Titanium (Ti) | 6 x (C + N) min., 0.50 max. | 8 x (C + N) min., 0.15 - 0.50 | 0.05 max. |
Columbium (Cb) max. | 0.17 | 0.10 | --- |
Titanium (Ti) plus
Columbium (Cb) | --- | --- | 0.08 + 8 x (C + N) min., 0.75 max. |
Iron (Fe) | Balance | Balance | Balance |
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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 |
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Mechanical Property:
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Typical Physical & Mechanical Properties - Annealed Condition (Room Temperature) |
Ferritic and Martensitic Stainless Steel Tubing |
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) |
409 | S40910 | 55,000 | 380 | 25,000 | 170 | 20 |
409 | S40920 | 55,000 | 380 | 25,000 | 170 | 20 |
409 | S40930 | 55,000 | 380 | 25,000 | 170 | 20
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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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