Overview of Bright Annealed A213 TP304L Stainless Steel Seamless Tube
Bright Annealed A213 TP304L seamless tubes are high-quality, austenitic stainless steel tubes manufactured to ASTM A213 specifications. Made from TP304L, a low-carbon variant of 304 stainless steel, these tubes are cold-drawn and bright annealed in a controlled atmosphere to achieve a smooth, reflective, oxide-free surface finish.
The bright annealing process enhances corrosion resistance, cleanliness, and dimensional precision, making these tubes ideal for heat exchangers, condensers, instrumentation lines, and high-purity applications in industries like pharmaceuticals, food processing, and petrochemicals.
Advantages of A213 TP304L BA Tube:
Superior corrosion resistance
High dimensional accuracy
Hygienic and easy to clean
Suitable for high-temperature service
Technical Parameters and Specifications
| Parameter Category | Range/Requirement |
|---|---|
| Outer Diameter | 3.175mm~42mm (1/8"~1.5") |
| Wall Thickness | 0.45mm~3.0mm (Tolerance ±10%) |
| Length | 3m/6m (fixed-length), customizable |
| Pressure Capacity | 80~180 MPa |
| Applicable Standards | ASTM A213/A269, ASME BPE, JIS G3459, etc. |
Chemical Composition of SS304L (UNS S30403)
| Element | Content (%) |
|---|---|
| Carbon (C) | ≤ 0.035 |
| Manganese (Mn) | ≤ 2.00 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 |
| Silicon (Si) | ≤ 1.00 |
| Chromium (Cr) | 18.0 – 20.0 |
| Nickel (Ni) | 8.0 – 12.0 |
| Nitrogen (N) | ≤ 0.10 |
| Iron (Fe) | Balance |
Mechanical Properties of SS304L (UNS S30403)
| Property | Value |
|---|---|
| Tensile Strength (min) | 485 MPa (70 ksi) |
| Yield Strength (min) | 170 MPa (25 ksi) |
| Elongation (min) | 35% |
| Hardness (max) | 90 HRB (Rockwell B) |
| Modulus of Elasticity | ~193 GPa (28 × 10⁶ psi) |
| Density | 8.0 g/cm³ |
| Melting Point | ~1400–1450 °C (2550–2640 °F) |
Typical Applications
