ASTM A213 TP304L Stainless Steel Tubes (UNS S30403)
ASTM A213 TP304L Stainless Steel Tubes (UNS S30403) are the low-carbon variant of the 304 grade, designed for enhanced weldability and minimized carbide precipitation. These tubes offer excellent corrosion resistance, superior mechanical strength, and exceptional performance in high-temperature and high-pressure environments. They are widely used in boilers, heat exchangers, condensers, and petrochemical plants.
Key Features
- Low Carbon Content for enhanced weldability
- Excellent Corrosion Resistance in a wide range of environments
- High Strength & Durability under elevated temperatures
- Superior Formability & Machinability
- Ideal for Heat Exchangers & Boiler Applications
- Oxidation & Thermal Fatigue Resistant
Equivalent Grades
| Standard | Equivalent Grade |
|---|---|
| UNS | S30403 |
| EN / DIN | 1.4306 / 1.4307 |
| JIS | SUS 304L |
| GB | 022Cr19Ni10 |
| BS | 304S11 |
| ASTM | 304L |
Available Sizes
- Outside Diameter (OD): 6 mm to 101.6 mm
- Wall Thickness: 0.5 mm to 12.7 mm
- Length: 1 meter to 12 meters
- Custom cut lengths available on request
ASTM A213 TP304L Chemical Composition
| Element | Content (%) |
|---|---|
| Carbon (C) | ≤ 0.030 |
| Manganese (Mn) | ≤ 2.00 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 |
| Silicon (Si) | ≤ 0.75 |
| Chromium (Cr) | 18.0 – 20.0 |
| Nickel (Ni) | 8.0 – 12.0 |
| Nitrogen (N) | ≤ 0.10 |
ASTM A213 TP304L Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength (MPa) | ≥ 485 |
| Yield Strength 0.2% (MPa) | ≥ 170 |
| Elongation (%) | ≥ 35 |
| Hardness (HBW) | ≤ 192 |
Physical Properties
| Property | Value |
|---|---|
| Density | 8.0 g/cm³ |
| Melting Range | 1400–1450°C |
| Thermal Conductivity @100°C | 16.2 W/m•K |
| Electrical Resistivity | 0.72 μΩ•m |
| Modulus of Elasticity | 193 GPa |
Types of ASTM A213 TP304L Tubes
- Seamless Tubes
- Cold Drawn Tubes
- Heat Exchanger Tubes
- Boiler Tubes
- U-Bend Tubes
- Straight Tubes
- Polished Tubes (180 / 240 / 320 / 400 Grit)
Applications
- Heat Exchangers
- Condensers
- Boiler Tubes
- Petrochemical & Refinery Plants
- Power Generation
- Food Processing Equipment
- Fertilizer Industry
- Pharmaceutical Industry
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