ASTM A269 TP304L Stainless Steel Tubes
ASTM A269 TP304L Stainless Steel Tubes are high-quality, low-carbon austenitic stainless steel tubes designed for superior corrosion resistance, excellent weldability, and smooth hygienic performance. The low-carbon “L” grade reduces carbide precipitation during welding, ensuring TP304L maintains excellent corrosion resistance even in applications that require frequent or continuous welding. Perfect for food processing, pharmaceuticals, heat exchangers, instrumentation, and chemical industries, ASTM A269 TP304L tubes deliver consistent performance, durability, and clean surface finish suitable for sanitary environments.
Key Features
- Low Carbon Content for enhanced weldability
- Excellent Corrosion Resistance across a wide variety of environments
- Smooth, Clean Inner Surface ideal for hygienic & high-purity applications
- High Strength-to-Weight Ratio
- Superior Formability & Machinability
- Available in Seamless, Welded & Bright Annealed Form
- Long Service Life & Low Maintenance
Equivalent Grades
| Standard | Grade |
|---|---|
| ASTM | 304L |
| UNS | S30403 |
| EN | 1.4306 / 1.4307 |
| JIS | SUS 304L |
| GOST | 03Х18Н11 |
Available Sizes
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Outer Diameter: 6 mm – 114 mm
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Wall Thickness: 0.5 mm – 6 mm
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Length: 1–12 meters or custom
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Custom dimensions available for bulk orders
ASTM A269 TP304L Chemical Composition
| Element | % |
|---|---|
| Carbon (C) | 0.03 max |
| Manganese (Mn) | 2.00 max |
| Phosphorus (P) | 0.045 max |
| Sulfur (S) | 0.030 max |
| Silicon (Si) | 0.75 max |
| Chromium (Cr) | 18.0 – 20.0 |
| Nickel (Ni) | 8.0 – 12.0 |
| Nitrogen (N) | 0.10 max |
ASTM A269 TP304L Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | 485 MPa (min) |
| Yield Strength | 170 MPa (min) |
| Elongation | 35% (min) |
| Hardness | 90 HRB (max) |
ASTM A269 TP304L Physical Properties
| Property | Value |
|---|---|
| Density | 8.0 g/cm³ |
| Melting Point | 1400–1450°C |
| Thermal Conductivity | 16.2 W/m·K |
| Electrical Resistivity | 0.72 µΩ·m |
| Modulus of Elasticity | 193 GPa |
Types of ASTM A269 TP304L Tubes
- Seamless Tubes
- Welded Tubes
- Cold Drawn Tubes
- Bright Annealed (BA) Tubes
- Polished Tubes (180, 240, 320, 400 Grit)
- Instrumentation Tubes
- Heat Exchanger Tubes
Applications
- Food & Dairy Processing
- Pharmaceutical & Biotech Plants
- Heat Exchangers & Condensers
- Chemical & Petrochemical Industries
- Beverage & Brewery Systems
- Instrumentation & Control Lines
- Oil & Gas Refineries
- Pulp & Paper Industry
- General Engineering Applications
- Sanitary & High-Purity Systems
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