Manufacturer, Supplier & Exporter of 3LPP Marine Coated Pipes
3LPP (3-Layer Polypropylene) Marine Coated Pipes are specialized carbon steel pipes designed for superior corrosion protection in harsh marine and offshore environments. These pipes feature a three-layer coating system: a fusion-bonded epoxy (FBE) base layer for anti-corrosion, an adhesive layer to ensure bonding, and a thick polypropylene outer layer that provides mechanical and chemical resistance. This combination makes them ideal for pipelines exposed to seawater, buried pipelines near coastal areas, and industrial installations with aggressive environmental conditions...
Riddhi Siddhi Impex, a leading manufacturer and supplier of coated pipes, applies strict quality control and international standards during production. Using high-grade carbon steel (ASTM A106, API 5L, or equivalent), the pipes are first surface-prepared via sandblasting, then coated with FBE, followed by adhesive application, and finally the polypropylene extrusion. This meticulous manufacturing ensures excellent adhesion, impact resistance, and long-term performance even in challenging marine conditions..
The 3LPP coating system enhances the pipe’s resistance to corrosion, mechanical damage, and chemical exposure. The polypropylene outer layer protects against UV exposure, soil stresses, and abrasion during transport and installation. The inner FBE layer prevents rusting of the steel core, while the adhesive layer ensures durability under cathodic protection. Overall, these pipes offer long service life, low maintenance requirements, and reliability for offshore and coastal infrastructure projects..
These pipes are widely used in oil and gas pipelines, offshore platforms, subsea pipelines, marine water intake and discharge systems, and coastal industrial projects. They are suitable for saltwater environments, rocky seabeds, tidal zones, and areas where pipelines are buried underground near the coast. Their robust design ensures uninterrupted flow, chemical resistance, and protection against mechanical damage from marine activities..
Riddhi Siddhi Impex supplies 3LPP Marine Coated Pipes across key Indian cities, ensuring nationwide availability. Major metro cities like Mumbai, Delhi, Bengaluru, Hyderabad, Chennai, Kolkata, Pune, and Ahmedabad are part of the supply network. The company also caters to regional industrial and port cities such as Surat, Vadodara, Rajkot, Nagpur, Indore, Bhopal, Jaipur, Kanpur, Lucknow, Agra, Varanasi, Amritsar, Chandigarh, Mysuru, Udaipur, Jodhpur, Visakhapatnam, Coimbatore, Madurai, Kochi, Thiruvananthapuram, Mangalore, Nashik, Kolhapur, Chandrapur, Akola, Vilayat, Somnath, Dahej, Navsari, Valsad, and Rajpipla. This extensive network ensures timely delivery for both coastal and inland projects..
3LPP Marine Coated Pipes
Specification
| Product Name | 3LPP Marine Coated Pipes |
|---|---|
| Manufacturer | Riddhi Siddhi Impex |
| Base Material | Carbon Steel (ASTM A106 / A53 / API 5L) |
| Coating Material | 3-Layer Polypropylene (3LPP) |
| Standard | DIN 30678 / ISO 21809-1 / ASTM / API |
| Size Range | 1/2” NB to 48” NB |
| Wall Thickness | Sch 20 to Sch 160 / XXS |
| Length | Single Random, Double Random, or Cut Lengths |
| Coating Thickness | 1.8 mm to 4.5 mm (Customizable) |
| Pipe Ends | Plain End (PE), Beveled End (BE), or Threaded |
| Form | Seamless, Welded, ERW, or LSAW |
| Applications | Marine Pipelines, Offshore Oil & Gas, Coastal Water Supply, Chemical Transport |
Chemical Composition (Base Carbon Steel)
| Element | Content (%) |
|---|---|
| Carbon (C) | 0.23 Max |
| Manganese (Mn) | 0.30 – 1.06 |
| Phosphorus (P) | 0.05 Max |
| Sulfur (S) | 0.045 Max |
| Silicon (Si) | 0.10 – 0.35 |
| Copper (Cu) | 0.40 Max |
| Nickel (Ni) | 0.40 Max |
| Chromium (Cr) | 0.40 Max |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | ≥ 415 MPa |
| Yield Strength (0.2% offset) | ≥ 240 MPa |
| Elongation | ≥ 20% |
| Hardness | ≤ 95 HRB |
| Impact Resistance | Excellent (Due to 3LPP Coating) |
| Coating Adhesion | Strong Adhesion per DIN 30678 |
Dimension Chart (Nominal)
| Nominal Pipe Size (NB) | Outside Diameter (mm) | Wall Thickness (mm) | Length |
|---|---|---|---|
| 1/2" | 21.3 | 2.77 | Up to 12 m |
| 1" | 33.4 | 3.38 | Up to 12 m |
| 2" | 60.3 | 3.91 | Up to 12 m |
| 4" | 114.3 | 6.02 | Up to 12 m |
| 6" | 168.3 | 7.11 | Up to 12 m |
| 10" | 273.1 | 9.27 | Up to 12 m |
| 16" | 406.4 | 12.70 | Up to 12 m |
Equivalent Grades
| Standard | Grade |
|---|---|
| ASTM | A106 Grade B / A53 Grade B |
| API | 5L Grade B / X42 / X52 |
| EN | EN 10216 / EN 10224 |
| DIN | St 37.2 / St 52.3 |
| BS | 3601 / 3602 |
Equivalent Standards
| Standard | Description |
|---|---|
| DIN 30678 | 3-Layer Polypropylene Coating for Marine & Offshore Steel Pipes |
| ISO 21809-1 | External Polypropylene Coatings for Buried or Submerged Pipelines |
| API 5L | Specification for Line Pipe |
| ASTM A106 / A53 | Standard Specification for Carbon Steel Pipe for High-Temperature and Pressure Service |
Other Types of Coated Steel Pipes
| Type | Description |
|---|---|
| FBE Coated Pipes | Fusion Bonded Epoxy coated pipes for corrosion protection |
| PE Coated Pipes | Polyethylene-coated pipes for underground or buried applications |
| Internal Epoxy Coated Pipes | Epoxy-coated internal surfaces for smooth fluid flow |
| PP Coated Pipes | Single or 3-Layer Polypropylene coating for offshore and marine applications |
Given the size, weight, and length of 3LPP coated pipes, logistics play a critical role in project execution. Riddhi Siddhi Impex provides specialized transportation solutions for road, rail, and port delivery. Pipes are delivered in standard lengths or cut-to-size, depending on project requirements. The company’s domestic presence allows clients in remote industrial cities and ports to receive material promptly, supporting seamless project implementation.
Frequently Asked Questions (FAQs)
- Q1: What are the main applications of 3LPP Marine Coated Pipes?
- A1: They are widely used in offshore oil & gas pipelines, marine water systems, coastal infrastructure, and chemical transport pipelines.
- Q2: Can custom lengths and coating thickness be supplied?
- A2: Yes, Riddhi Siddhi Impex provides pipes in customized lengths and 3-layer coating thicknesses as per project requirements.
- Q3: Are 3LPP pipes resistant to seawater corrosion?
- A3: Yes, the 3-layer polypropylene coating provides excellent corrosion and chemical resistance for marine and offshore applications.
- Q4: Which Indian cities are served for 3LPP Marine Coated Pipes?
- A4: We supply across India including Mumbai, Delhi, Bengaluru, Hyderabad, Chennai, Kolkata, Pune, Surat, Vadodara, Rajkot, Nagpur, Indore, Jaipur, Kanpur, Lucknow, and more.
Cities we have supplied our products to
Mumbai, 3LPP Marine Coated Pipes Suplier in Delhi, 3LPP Marine Coated Pipes Suplier in Bengaluru(Bangalore), 3LPP Marine Coated Pipes Suplier in Hyderabad, 3LPP Marine Coated Pipes Suplier in Chennai, 3LPP Marine Coated Pipes Suplier in Kolkata, 3LPP Marine Coated Pipes Suplier in Pune, 3LPP Marine Coated Pipes Suplier in Ahmedabad, 3LPP Marine Coated Pipes Suplier in Surat, 3LPP Marine Coated Pipes Suplier in Vadodara, 3LPP Marine Coated Pipes Suplier in Rajkot, 3LPP Marine Coated Pipes Suplier in Nagpur, 3LPP Marine Coated Pipes Suplier in Indore, 3LPP Marine Coated Pipes Suplier in Bhopal, 3LPP Marine Coated Pipes Suplier in Jaipur, 3LPP Marine Coated Pipes Suplier in Kanpur, 3LPP Marine Coated Pipes Suplier in Lucknow, 3LPP Marine Coated Pipes Suplier in Agra, 3LPP Marine Coated Pipes Suplier in Varanasi, 3LPP Marine Coated Pipes Suplier in Amritsar, 3LPP Marine Coated Pipes Suplier in Chandigarh, 3LPP Marine Coated Pipes Suplier in Mysuru (Mysore), 3LPP Marine Coated Pipes Suplier in Udaipur, 3LPP Marine Coated Pipes Suplier in Jodhpur, 3LPP Marine Coated Pipes Suplier in Visakhapatnam, 3LPP Marine Coated Pipes Suplier in Coimbatore, 3LPP Marine Coated Pipes Suplier in Madurai, 3LPP Marine Coated Pipes Suplier in Kochi, 3LPP Marine Coated Pipes Suplier in Thiruvananthapuram, 3LPP Marine Coated Pipes Suplier in Mangalore, 3LPP Marine Coated Pipes Suplier in Nagpur, 3LPP Marine Coated Pipes Suplier in Nashik, 3LPP Marine Coated Pipes Suplier in Kolhapur, 3LPP Marine Coated Pipes Suplier in Chandrapur, 3LPP Marine Coated Pipes Suplier in Akola, 3LPP Marine Coated Pipes Suplier in Vilayat, 3LPP Marine Coated Pipes Suplier in Somnath, 3LPP Marine Coated Pipes Suplier in Dahej, 3LPP Marine Coated Pipes Suplier in Vadodara, 3LPP Marine Coated Pipes Suplier in Narmada, 3LPP Marine Coated Pipes Suplier in Surat, 3LPP Marine Coated Pipes Suplier in Ankleshwar, 3LPP Marine Coated Pipes Suplier in Navsari, 3LPP Marine Coated Pipes Suplier in Valsad, 3LPP Marine Coated Pipes 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Andra Pradesh, 3LPP Marine Coated Pipes Suplier in Rourkela, 3LPP Marine Coated Pipes Suplier in Hindupur, 3LPP Marine Coated Pipes Suplier in Orissa, 3LPP Marine Coated Pipes Suplier in Renukoot, 3LPP Marine Coated Pipes Suplier in Uttar Pradesh, 3LPP Marine Coated Pipes Suplier in Morbi, 3LPP Marine Coated Pipes Suplier in Kerala , 3LPP Marine Coated Pipes Suplier inHimachal, 3LPP Marine Coated Pipes Suplier in Dehradun, 3LPP Marine Coated Pipes Suplier in Visakhapatnam , 3LPP Marine Coated Pipes Suplier inJamnagar, 3LPP Marine Coated Pipes Suplier in Kozhikode, 3LPP Marine Coated Pipes Suplier in Pondicherry, 3LPP Marine Coated Pipes Suplier in Ludhiana, 3LPP Marine Coated Pipes Suplier inLatur, 3LPP Marine Coated Pipes Suplier in Nanded, 3LPP Marine Coated Pipes Suplier in Vijaywada, 3LPP Marine Coated Pipes Suplier in Alwar, 3LPP Marine Coated Pipes Suplier in Bareilly, 3LPP Marine Coated Pipes Suplier in Bikaner, 3LPP Marine Coated Pipes Suplier in Andheri, 3LPP Marine Coated 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Countries we have supplied our products to
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