ASTM A312 TP304L Stainless Steel Pipes
ASTM A312 TP304L is the low-carbon version of 304 stainless steel, designed to offer superior weldability, reduced carbide precipitation, and enhanced corrosion resistance. TP304L stainless steel pipes are widely used in chemical processing, pharmaceuticals, food industries, water treatment, and structural applications due to their cleanability, high strength, and excellent resistance to intergranular corrosion.
Manufactured as Seamless, Welded, ERW & EFW, TP304L pipes meet ASTM A312 / ASME SA312 quality standards and ensure superior performance in highly sensitive and corrosive environments.
Key Features
- Low Carbon Content for excellent weldability
- Superior Corrosion Resistance in chemical & atmospheric environments
- Prevents Carbide Precipitation during welding
- Hygienic Material ideal for food, dairy & pharma sectors
- Suitable for Cryogenic Conditions
- High Strength-to-Weight Ratio
- Durable, Rust-Free, and Easy to Fabricate
- Available in a wide range of schedules & sizes
Equivalent Grades
| Standard | Grade |
|---|---|
| UNS | S30403 |
| EN / DIN | 1.4306 / 1.4307 |
| JIS | SUS 304L |
| BS | 304S11 |
| GOST | 03Х18Н11 |
Available Sizes
| Type | Size Range |
|---|---|
| Seamless | 1/8″ NB to 24″ NB |
| Welded | 1/2″ NB to 48″ NB |
| Wall Thickness | 1.5 mm to 50 mm |
| Schedules | SCH 5 to SCH 160, XXS |
| Outer Diameter (OD) | 6mm – 1219mm |
ASTM A312 TP304L Chemical Composition
| Element | % Composition |
|---|---|
| Carbon (C) | ≤ 0.03 |
| 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 – 13.0 |
| Nitrogen (N) | ≤ 0.10 |
| Iron (Fe) | Balance |
ASTM A312 TP304L Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | ≥ 485 MPa |
| Yield Strength (0.2% Proof) | ≥ 170 MPa |
| Elongation | ≥ 35% |
| Hardness (Brinell) | ≤ 201 HB |
| Hardness (Rockwell B) | ≤ 92 HRB |
ASTM A312 TP304L Physical Properties
| Property | Value |
|---|---|
| Density | 8.0 g/cm³ |
| Melting Point | 1400–1450°C |
| Thermal Conductivity | 16.2 W/m·K |
| Coefficient of Expansion | 17.3 µm/m°C |
| Electrical Resistivity | 0.72 µΩ·m |
| Modulus of Elasticity | 193 GPa |
Types of TP304L Stainless Steel Pipes
- Seamless Pipes
- Welded Pipes
- ERW Stainless Steel Pipes
- EFW Pipes
- Round Pipes
- Square & Rectangular Pipes
- Polished Pipes (180 / 240 / 320 / 600 Grit)
- Heat Exchanger & Condenser Tubes
Applications
- Food, Dairy & Beverage Processing
- Pharmaceutical & Biotech
- Chemical Processing Plants
- Oil & Gas Refineries
- Water Treatment & Desalination
- Textile & Paper Industry
- Construction & Architectural Structures
- Power Generation
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