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TP304LN Stainless Steel Pipe Tube Seamless Pipe DN80 DN100 DN 150 DN200 in 6m Length
| Place of Origin | China |
|---|---|
| Brand Name | DELTA |
| Certification | ISO |
| Model Number | TP304LN |
| Minimum Order Quantity | 1000 kgs |
| Price | 2.5 - 5.5USD/Kg |
| Packaging Details | standard packing for export |
| Delivery Time | 5 - 12 days based on the quantity |
| Payment Terms | L/C,T/T,Western Union |
| Supply Ability | 4 Ton per week |
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xProduct Details
| Products | Stainless Steel Seamless Pipe | Grade | TP304LN |
|---|---|---|---|
| Diameter | DN10 - DN400 | Length | 6m Or Custom Cutting Any Length As Request |
| Standard | ASTM EN | Service | Cutting |
| Loading Port | Shanghai Port | Thickness | 4.0 - 50.0mm |
| Highlight | TP304LN stainless steel seamless pipe,DN80 stainless steel tube 6m length,DN200 stainless steel pipe with warranty |
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Product Description
TP304LN Stainless Steel Pipe Tube Seamless Pipe DN80 DN100 DN 150 DN200 in 6m Length
Products Specification
| Products Name | TP304LN Stainless Steel Seamless Pipe |
Grade: |
304 304L 304LN 309S 310S 314 315 316L 316Ti 317L 321 329 347H 410 2205 2507 2550 S32760 904L 254SMO and equal grade in GB JIS EN DIN Standard |
| Standards: | ASTM A213M-94b ASTM A249M-94a ASTM A269-94a ASTM A312M-94b,ect. ASTM A790 |
| DIN 17456-85 DIN 17458-85 DIN 17459-92.ect | |
| JIS G3446-1994 JIS G3448-1997 JIS G3459-1997 JIS G3463-1994,ect. | |
| GB13296-1991 GB14975-2002 GB14976-2002,ect. | |
| Size: | ND5 - DN400 |
| Length: | 6m length or cutting any length as request |
| Applications: | fluid and gas transport, structure , boiler, heat exchanger, super heater |
1. Product Overview
TP304LN stainless steel seamless pipe is a low-carbon (≤0.03%) variant of the classic TP304L alloy, with the addition of nitrogen to enhance mechanical strength and corrosion resistance. This seamless pipe eliminates welded joints, ensuring uniform structure, high pressure resistance, and reliability—making it ideal for demanding industrial and commercial applications. All pipes listed here feature a fixed length of 6m, with nominal diameters (DN) of DN80, DN100, DN150, and DN200, meeting global standards for dimensional accuracy and performance.
2. Key Specifications
The following table details the critical dimensional and material specifications of the TP304LN seamless pipes:
| Parameter | Specification (DN80) | Specification (DN100) | Specification (DN150) | Specification (DN200) |
|---|---|---|---|---|
| Nominal Diameter (DN) | DN80 | DN100 | DN150 | DN200 |
| Outside Diameter (OD) | 88.9 mm | 114.3 mm | 168.3 mm | 219.1 mm |
| Standard Wall Thickness | 4.05 mm (Sch 40) / 6.35 mm (Sch 80) | 4.57 mm (Sch 40) / 7.11 mm (Sch 80) | 5.59 mm (Sch 40) / 8.74 mm (Sch 80) | 6.35 mm (Sch 40) / 10.31 mm (Sch 80) |
| Length | 6m (fixed, ±5mm tolerance) | 6m (fixed, ±5mm tolerance) | 6m (fixed, ±5mm tolerance) | 6m (fixed, ±5mm tolerance) |
| Material Grade | TP304LN (AISI 304LN / UNS S30453) | TP304LN (AISI 304LN / UNS S30453) | TP304LN (AISI 304LN / UNS S30453) | TP304LN (AISI 304LN / UNS S30453) |
| Surface Finish | Annealed & Pickled (AP) / Bright Annealed (BA) | Annealed & Pickled (AP) / Bright Annealed (BA) | Annealed & Pickled (AP) / Bright Annealed (BA) | Annealed & Pickled (AP) / Bright Annealed (BA) |
3. Chemical Composition (ASTM A312/A312M Standard)
TP304LN’s corrosion resistance and mechanical properties are determined by its strict chemical composition, as follows (all values are in weight percentage, wt%):
| Element | Minimum Content | Maximum Content | Role |
|---|---|---|---|
| Chromium (Cr) | 18.00% | 20.00% | Enhances oxidation and general corrosion resistance |
| Nickel (Ni) | 8.00% | 12.00% | Improves ductility and resistance to chloride-induced stress corrosion |
| Carbon (C) | — | 0.03% | Low carbon content prevents carbide precipitation (critical for weldability) |
| Nitrogen (N) | 0.10% | 0.16% | Boosts tensile strength and hardness without sacrificing ductility |
| Manganese (Mn) | — | 2.00% | Aids in steel melting and improves workability |
| Silicon (Si) | — | 1.00% | Enhances high-temperature oxidation resistance |
| Phosphorus (P) | — | 0.045% | Controlled to avoid brittleness |
| Sulfur (S) | — | 0.030% | Minimized to prevent corrosion and brittleness |
4. Mechanical Properties
TP304LN seamless pipes exhibit excellent strength, ductility, and toughness, compliant with ASTM A312/A312M and ASME B36.19 standards:
| Property | Test Standard | Minimum Value |
|---|---|---|
| Tensile Strength (UTS) | ASTM A370 | 515 MPa (75 ksi) |
| Yield Strength (0.2% offset) | ASTM A370 | 205 MPa (30 ksi) |
| Elongation (in 50mm) | ASTM A370 | 35% |
| Hardness (Brinell) | ASTM E10 | ≤217 HB |
| Impact Toughness (Charpy V-notch) | ASTM A370 | ≥27 J at -196°C (-321°F) |
5. Core Performance Advantages
- Superior Corrosion Resistance: The Cr-Ni-N alloy system resists general corrosion, pitting, and crevice corrosion in harsh environments (e.g., seawater, acidic/alkaline solutions). Low carbon content eliminates "sensitization" (carbide precipitation) during welding, ensuring post-weld corrosion resistance.
- High Mechanical Strength: Nitrogen addition increases tensile strength by ~15-20% compared to TP304L, allowing thinner walls for weight/cost savings while maintaining pressure resistance.
- Excellent Ductility & Weldability: Low carbon and high nickel content enable easy forming (bending, flanging) and welding via TIG, MIG, or SMAW processes—no post-weld heat treatment required for most applications.
- High-Temperature Stability: Withstands continuous service temperatures up to 870°C (1600°F) and intermittent use up to 925°C (1700°F) without significant oxidation or strength loss.
- Hygienic & Non-Toxic: Smooth surface finish (AP/BA) prevents bacterial growth, meeting food-grade and pharmaceutical standards (FDA-compliant).
6. Compliance with International Standards
All TP304LN seamless pipes adhere to globally recognized standards for quality and safety:
- Material & Manufacturing: ASTM A312/A312M (USA), ASME B36.19M (Stainless Steel Pipe), EN 10216-5 (European), JIS G3459 (Japan).
- Dimensional Tolerance: EN 10216-5 Class 2 (for OD and wall thickness); ASME B36.19M for length and straightness.
- Non-Destructive Testing (NDT): 100% Ultrasonic Testing (UT) for internal/external defects (per ASTM A578 Level A); Hydrostatic Testing (per ASTM A312) at 3.45 MPa (500 psi) to ensure leak tightness.
- Certifications: ISO 9001 (Quality Management), ISO 14001 (Environmental Management), PED 2014/68/EU (Pressure Equipment Directive) for pressure applications.
7. Typical Applications
TP304LN seamless pipes are widely used across industries due to their balanced performance:
- Oil & Gas: Offshore pipelines, wellhead equipment, and subsea manifolds (resists seawater corrosion).
- Chemical & Petrochemical: Reactors, process pipelines, and storage tanks (handles acids, alkalis, and organic solvents).
- Water Treatment: Desalination plants, wastewater treatment systems, and potable water pipelines (resists chloride pitting).
- Food & Beverage: Dairy processing, brewing, and beverage conveyance (hygienic, easy to clean).
- Pharmaceuticals: Pharmaceutical manufacturing equipment and sterile fluid transfer (meets FDA/USP standards).
- Power Generation: Boiler feedwater lines, heat exchangers, and turbine systems (high-temperature and pressure resistance).
- Construction: Architectural handrails, structural supports, and decorative elements (aesthetic and weather-resistant).
8. Export Packaging & Shipping
To ensure product integrity during international transportation, the pipes are packaged as follows:
- Inner Protection: Each pipe is wrapped in PE film to prevent scratches, moisture, and contamination. For bright annealed (BA) pipes, additional VCI (Volatile Corrosion Inhibitor) paper is used to avoid rust.
- Bundling: Pipes are bundled into compact packs (10-15 pieces per bundle, depending on DN) using galvanized steel straps (width: 32mm, thickness: 1.2mm) to prevent shifting.
- Palletization: Bundles are placed on wooden pallets (heat-treated, ISPM 15-certified) to comply with international phytosanitary requirements (avoids pest infestation).
- Outer Cover: Each pallet is covered with a heavy-duty PP woven bag or waterproof tarpaulin to protect against rain, dust, and UV radiation.
- Labeling: Clear labels are affixed to each bundle/pallet, including: Product Name (TP304LN Seamless Pipe), DN/OD/Wall Thickness/Length, Material Certificate No., Heat No., Quantity, Weight, and Destination Port.
- Shipping: Compatible with container shipping (20ft/40ft containers) or bulk cargo. Loading capacity: ~20-25 tons per 40ft container (varies by DN and wall thickness).
9. Quality Assurance
Every batch of TP304LN seamless pipes undergoes strict quality control:
- Incoming material inspection (chemical composition testing via / Spectroscopy).
- Hot rolling and cold drawing process monitoring (dimensional accuracy checks).
- Annealing and pickling process control (microstructure analysis via metallography).
- 100% UT and hydrostatic testing.
- Final inspection (surface finish, straightness, and dimensional verification).
- Material Certificate: Each shipment includes a MTC (Material Test Certificate) per EN 10204 3.1/B, providing full traceability of chemical composition, mechanical properties, and NDT results.
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