ASTM A269 TP321 Stainless Steel Cold Finished Pipe
Outer Diameter：3.18-810mm
Type：Seamless Pipe
Wall Thickness;0.2-40mm
Technique：Hot Rolled/Cold Drawn
Shape：Round/Customized
Process：Polished/Solution Treatment
End：Plain End/Bevel End
Test：BV, SGS Is Available
Stock：Size Can Customized
ASTM A269 TP321 stainless steel cold finished pipe Introduction
ASTM A269 TP321 stainless steel cold finished pipe is widely used in general service fields such as conveying gas, water, oil and other fluids. Due to its excellent corrosion resistance and high temperature stability, it is also suitable for oil, gas pipelines and various industrial and construction applications.
ASTM A269 TP321 Bright Annealing Tube
Advantages of ASTM A269 TP321 stainless steel Tubes
ASTM A269 TP321 bright annealed tube: through controlled atmosphere heat treatment, the austenite structure is retained, the surface is smooth (Ra≤0.4μm), the corrosion resistance is enhanced, the tube body is soft and ductile, and it is suitable for high-cleanliness and bending forming scenes (such as food and medicine pipelines).
ASTM A269 TP321 hardened tube: after high-temperature quenching and rapid cooling, the microstructure changes, the hardness and strength are significantly improved (yield strength ≥300MPa), and it is suitable for high-pressure and wear-resistant conditions (such as mechanical structural parts).
ASTM A269 TP321 welded tube corrosion resistance: TP321 contains titanium stabilization design, and has strong resistance to high-temperature oxidation and intergranular corrosion. However, when it is exposed to chloride/acidic environment for a long time or the surface oxide layer is damaged, pitting or crevice corrosion may occur, and regular maintenance and passivation treatment are required.
Why Choose GNEE
GNEE provides customized TP321 seamless/welded pipes, supports cold/hot processing, TIG/MIG welding, and is suitable for a wide temperature range of -196℃~900℃. It can meet the requirements of demanding scenarios such as marine engineering and high-temperature boilers, and provides a variety of options such as electrolytic polishing and different wedge interfaces.
ASTM A269 TP321 Austenitic alloy steel pipe Specifcation
Chemical Composition (Weight %)
| Element | Carbon (C) | Manganese (Mn) | Phosphorus (P) | Sulfur (S) | Silicon (Si) | Chromium (Cr) | Nickel (Ni) | Titanium (Ti) |
|---|---|---|---|---|---|---|---|---|
| Requirement | ≤0.08 | ≤2.00 | ≤0.045 | ≤0.03 | ≤0.75 | 17.0–19.0 | 9.0–13.0 | ≥5×(C+N), ≤0.70<sup>1</sup> |
Mechanical Properties
| Property | Min. Tensile Strength (MPa) |
Min. Yield Strength (MPa) |
Min. Elongation (%) |
Max. Hardness (HRB) |
Max. Hardness (HB) |
|---|---|---|---|---|---|
| Requirement | 515 | 205 | 40 | 95 |
ASME SA 269 TP 321 Seamless and Welded Tubing Manufacturer
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Packaging of ASTM A269 Stainless Steel Tubes
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