Manufacturer, Supplier & Exporter of PU Coated Pipes (External Polyurethane)
PU coated pipes (external polyurethane coated steel or ductile pipes) are specially treated pipeline products in which the pipe’s external surface is covered with a layer of polyurethane (PU) to guard against corrosion, abrasion, chemical attack, and aggressive soil conditions. The polyurethane coating is usually applied over metal (steel or ductile-iron) or sometimes even concrete or other substrate pipes, creating a durable barrier. The external PU coating enhances longevity and lowers lifetime maintenance costs, especially critical in Indian infrastructure settings where soil conditions, groundwater salinity, varying climates and heavy loads demand robust protection..
In many Indian cities — coastal zones like Kochi or Visakhapatnam, industrial zones like Dahej, Ankleshwar, or inland heavy-load corridors like Pune, Nashik or Nagpur — the metallic or conventional pipelines face corrosion, stray currents, aggressive soils, high groundwater tables or heavy traffic loads. The external PU coating offers excellent adhesion, flexibility, impact resistance and chemical protection. For example, documents state that polyurethane external coating is “very good corrosion resistance and wear resistance” and suitable for use in all soil types and stray current environments..
When supplying PU coated external pipes, manufacturers/suppliers such as Riddhi Siddhi Impex must verify coating thickness, substrate preparation, surface cleaning, application of primer and top coat, curing process, adhesion testing, and joint integrity. For example, external polyurethane coatings are applied in multiple layers, with typical dry film thickness specification (e.g., 1000 microns in one spec) and require surface preparation like SSPC SP10 / NACE standards...
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Because large diameter coated pipes are heavy, bulky and often custom-ordered, proper logistics is crucial. Riddhi Siddhi Impex needs to coordinate manufacture or stock in regional hubs, manage transport (road/rail), site delivery, handling (crane, storage) and jointing/installation support. Delivery across all the listed cities (Mumbai, Delhi, Bengaluru, Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, 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, Rajpipla, Narmada) demands networked supply or regional manufacturing. The supplier must handle varying local site conditions (coastal, mountainous, desert, high traffic), and guarantee that the coating remains undamaged in transit and installation...
India’s infrastructure push — smart cities, water/wastewater networks, industrial corridors, coastal ports, jacking/trenchless installations, heavy traffic corridors — creates strong demand for reliable coated pipelines with long service life and minimal maintenance. PU coated external pipes are ideal for these demands. For projects in sectors like municipal water supply (in cities like Chennai, Hyderabad, Kolkata), industrial process or effluent pipelines (Gujarat industrial belt), coastal installations (Kochi, Visakhapatnam, Mangalore), or highways/metro rail under-pass pipelines (Delhi, Bengaluru, Pune), the superior protection offered by PU coatings makes them a strong choice. As a domestic supplier, Riddhi Siddhi Impex is well placed to meet this demand in Indian cities, offering timely delivery, localized logistics and support..
PU Coated Pipes (External Polyurethane)
Specification
| Product Name | PU Coated Pipes (External Polyurethane) |
|---|---|
| Manufacturer | Riddhi Siddhi Impex |
| Base Material | Carbon Steel / Mild Steel / Alloy Steel / Stainless Steel |
| Coating Material | Polyurethane (PU) – External Coating |
| Standard | ISO 21809-3 / DIN 30677-2 / ASTM / API / IS Specifications |
| Size Range | 1/2” NB to 48” NB (Custom sizes available) |
| Wall Thickness | Sch 20 to Sch 160 / XXS |
| Coating Thickness | 800 Microns – 1500 Microns (Custom as per project) |
| Pipe Ends | Plain End (PE), Beveled End (BE), Threaded |
| Form | Seamless, Welded, ERW, LSAW |
| Applications | Oil & Gas Pipelines, Water Supply, Industrial Piping, Marine & Subsea Lines, Chemical Transport |
Chemical Composition (Typical Base 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 |
| Nickel (Ni) | 0.40 Max |
| Chromium (Cr) | 0.40 Max |
| Copper (Cu) | 0.40 Max |
Mechanical Properties
| Property | Typical Value |
|---|---|
| Tensile Strength | ≥ 415 MPa |
| Yield Strength (0.2% offset) | ≥ 240 MPa |
| Elongation | ≥ 20% |
| Hardness | ≤ 95 HRB |
| Impact Resistance | Excellent (PU absorbs mechanical shocks) |
| Coating Adhesion | Strong Adhesion (per ISO 21809-3) |
| Temperature Resistance | -30°C to +120°C |
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 Gr B / A53 Gr B |
| API | 5L Gr B / X42 / X52 |
| EN | EN 10216 / EN 10224 |
| DIN | St 37.2 / St 52.3 |
| BS | 3601 / 3602 |
Equivalent Standards
| Standard | Description |
|---|---|
| ISO 21809-3 | External Polyurethane Coating for Buried or Submerged Pipelines |
| DIN 30677-2 | Polyurethane Coatings for Steel Pipes |
| ASTM A106 / A53 | Specification for Carbon Steel Pipe for High-Temperature and Pressure Service |
| API 5L | Specification for Line Pipe |
Other Types of Coated Pipes
| Type | Description |
|---|---|
| 3LPE Coated Pipes | Three-layer polyethylene coating for underground and underwater pipelines |
| FBE Coated Pipes | Fusion Bonded Epoxy coating for corrosion resistance |
| Internal Epoxy Coated Pipes | Internal epoxy coating to improve flow efficiency |
| PP Coated Pipes | Polypropylene coated pipes for high-temperature chemical applications |
In summary, external polyurethane coated pipes represent a high-performance pipeline solution especially suited for challenging soil, corrosive environments, heavy loads and long-life installations. With Riddhi Siddhi Impex positioned as a domestic manufacturer/supplier, clients in Indian cities from metropolises (Mumbai, Delhi, Bengaluru) to regional hubs (Nagpur, Udaipur, Rajpipla) can access these advanced piping solutions. When procuring PU coated external pipes, focus on substrate specification, coating system, local delivery logistics, installation support and warranty of coating integrity. If you’re planning a project in any of the listed cities and need PU coated external pipes, Riddhi Siddhi Impex can be contacted to provide detailed specification sheets, regional stock availability, delivery lead-time and installation guidance..
Frequently Asked Questions (FAQs)
- Q1: What is a PU Coated Pipe (External Polyurethane)?
- A1: PU Coated Pipes are steel or carbon steel pipes with a durable external polyurethane layer for corrosion, impact, and chemical resistance.
- Q2: What are the key advantages of PU Coated Pipes?
- A2: They offer superior corrosion resistance, mechanical strength, abrasion protection, and long service life for industrial and water pipelines.
- Q3: Where are PU Coated Pipes used?
- A3: Used in oil & gas pipelines, water distribution systems, chemical plants, and marine environments.
- Q4: Does Riddhi Siddhi Impex supply PU Coated Pipes across India?
- A4: Yes, we supply PU Coated Pipes in Mumbai, Delhi, Bengaluru, Hyderabad, Chennai, Kolkata, Ahmedabad, Pune, Surat, Vadodara, and other major Indian cities.
Cities we have supplied our products to
Mumbai, PU Coated Pipes (External Polyurethane) Suplier in Delhi, PU Coated Pipes (External Polyurethane) Suplier in Bengaluru(Bangalore), PU Coated Pipes (External Polyurethane) Suplier in Hyderabad, PU Coated Pipes (External Polyurethane) Suplier in Chennai, PU Coated Pipes (External Polyurethane) Suplier in Kolkata, PU Coated Pipes (External Polyurethane) Suplier in Pune, PU Coated Pipes (External Polyurethane) Suplier in Ahmedabad, PU Coated Pipes (External Polyurethane) Suplier in Surat, PU Coated Pipes (External Polyurethane) Suplier in Vadodara, PU Coated Pipes (External Polyurethane) Suplier in Rajkot, PU Coated Pipes (External Polyurethane) Suplier in Nagpur, PU Coated Pipes (External Polyurethane) Suplier in Indore, PU Coated Pipes (External Polyurethane) Suplier in Bhopal, PU Coated Pipes (External Polyurethane) Suplier in Jaipur, PU Coated Pipes (External Polyurethane) Suplier in Kanpur, PU Coated Pipes (External Polyurethane) Suplier in Lucknow, PU Coated Pipes (External Polyurethane) Suplier in Agra, PU Coated Pipes (External Polyurethane) Suplier in Varanasi, PU Coated Pipes (External Polyurethane) Suplier in Amritsar, PU Coated Pipes (External Polyurethane) Suplier in Chandigarh, PU Coated Pipes (External Polyurethane) Suplier in Mysuru (Mysore), PU Coated Pipes (External Polyurethane) Suplier in Udaipur, PU Coated Pipes (External Polyurethane) Suplier in Jodhpur, PU Coated Pipes (External Polyurethane) Suplier in Visakhapatnam, PU Coated Pipes (External Polyurethane) Suplier in Coimbatore, PU Coated Pipes (External Polyurethane) Suplier in Madurai, PU Coated Pipes (External Polyurethane) Suplier in Kochi, PU Coated Pipes (External Polyurethane) Suplier in Thiruvananthapuram, PU Coated Pipes (External Polyurethane) Suplier in Mangalore, PU Coated Pipes (External Polyurethane) Suplier in Nagpur, PU Coated Pipes (External Polyurethane) Suplier in Nashik, PU Coated Pipes (External Polyurethane) Suplier in Kolhapur, PU Coated Pipes (External Polyurethane) Suplier in Chandrapur, PU Coated Pipes (External Polyurethane) Suplier in Akola, PU Coated Pipes (External Polyurethane) Suplier in Vilayat, PU Coated Pipes (External Polyurethane) Suplier in Somnath, PU Coated Pipes (External Polyurethane) Suplier in Dahej, PU Coated Pipes (External Polyurethane) Suplier in Vadodara, PU Coated Pipes (External Polyurethane) Suplier in Narmada, PU Coated Pipes (External Polyurethane) Suplier in Surat, PU Coated Pipes (External Polyurethane) Suplier in Ankleshwar, PU Coated Pipes (External Polyurethane) Suplier in Navsari, PU Coated Pipes (External Polyurethane) Suplier in Valsad, PU Coated Pipes (External Polyurethane) Suplier in Rajpipla, PU Coated Pipes (External Polyurethane) Suplier in Veraval, PU Coated Pipes (External Polyurethane) Suplier inKovvur, PU Coated Pipes (External Polyurethane) Suplier in Andra Pradesh, PU Coated Pipes (External Polyurethane) Suplier inKarwar, PU Coated Pipes (External Polyurethane) Suplier in Karnataka, PU Coated Pipes (External Polyurethane) Suplier inKosamba, PU Coated Pipes (External Polyurethane) Suplier in Gujarat, PU Coated Pipes (External Polyurethane) Suplier in Vishakapatnam, PU Coated Pipes (External Polyurethane) Suplier in Shahad, PU Coated Pipes (External Polyurethane) Suplier in Pondicherry, PU Coated Pipes (External Polyurethane) Suplier in Kakkinada, PU Coated Pipes (External Polyurethane) Suplier in Andra Pradesh, PU Coated Pipes (External Polyurethane) Suplier in Nagda, PU Coated Pipes (External Polyurethane) Suplier in Madhya Pradesh, PU Coated Pipes (External Polyurethane) Suplier inHarihar, PU Coated Pipes (External Polyurethane) Suplier in Karnataka, PU Coated Pipes (External Polyurethane) Suplier in Tuticorin, PU Coated Pipes (External Polyurethane) Suplier in Tamilnadu, PU Coated Pipes (External Polyurethane) Suplier in Trivandrum, PU Coated Pipes (External Polyurethane) Suplier in KeralaKurnool, PU Coated Pipes (External Polyurethane) Suplier in Andra Pradesh, PU Coated Pipes (External Polyurethane) Suplier in Rourkela, PU Coated Pipes (External Polyurethane) Suplier in Hindupur, PU Coated Pipes (External Polyurethane) Suplier in Orissa, PU Coated Pipes (External Polyurethane) Suplier in Renukoot, PU Coated Pipes (External Polyurethane) Suplier in Uttar Pradesh, PU Coated Pipes (External Polyurethane) Suplier in Morbi, PU Coated Pipes (External Polyurethane) Suplier in Kerala , PU Coated Pipes (External Polyurethane) Suplier inHimachal, PU Coated Pipes (External Polyurethane) Suplier in Dehradun, PU Coated Pipes (External Polyurethane) Suplier in Visakhapatnam , PU Coated Pipes (External Polyurethane) Suplier inJamnagar, PU Coated Pipes (External Polyurethane) Suplier in Kozhikode, PU Coated Pipes (External Polyurethane) Suplier in Pondicherry, PU Coated Pipes (External Polyurethane) Suplier in Ludhiana, PU Coated Pipes (External Polyurethane) Suplier inLatur, PU Coated Pipes (External Polyurethane) Suplier in Nanded, PU Coated Pipes (External Polyurethane) Suplier in Vijaywada, PU Coated Pipes (External Polyurethane) Suplier in Alwar, PU Coated Pipes (External Polyurethane) Suplier in Bareilly, PU Coated Pipes (External Polyurethane) Suplier in Bikaner, PU Coated Pipes (External Polyurethane) Suplier in Andheri, PU Coated Pipes (External Polyurethane) Suplier in Marol, PU Coated Pipes (External Polyurethane) Suplier in Taloja, PU Coated Pipes (External Polyurethane) Suplier in Turbhe, PU Coated Pipes (External Polyurethane) Suplier in TTC (Thane-Belapur), PU Coated Pipes (External Polyurethane) Suplier in Pimpri-Chinchwad, PU Coated Pipes (External Polyurethane) Suplier in Chakan, PU Coated Pipes (External Polyurethane) Suplier in Talegaon, PU Coated Pipes (External Polyurethane) Suplier in Ranjangaon, PU Coated Pipes (External Polyurethane) Suplier in Jejuri, PU Coated Pipes (External Polyurethane) Suplier in Baramati, PU Coated Pipes (External Polyurethane) Suplier in Satpur, PU Coated Pipes (External Polyurethane) Suplier in Ambad, PU Coated Pipes (External Polyurethane) Suplier in Sinnar, PU Coated Pipes (External Polyurethane) Suplier in Igatpuri, PU Coated Pipes (External Polyurethane) Suplier in Shendra, PU Coated Pipes (External Polyurethane) Suplier in Waluj, PU Coated Pipes (External Polyurethane) Suplier in Chikalthana, PU Coated Pipes (External Polyurethane) Suplier in Paithan, PU Coated Pipes (External Polyurethane) Suplier in Hingna, PU Coated Pipes (External Polyurethane) Suplier in Butibori, PU Coated Pipes (External Polyurethane) Suplier in Kalmeshwar, PU Coated Pipes (External Polyurethane) Suplier in Umred, PU Coated Pipes (External Polyurethane) Suplier in Shiroli, PU Coated Pipes (External Polyurethane) Suplier in Kagal, PU Coated Pipes (External Polyurethane) Suplier in Gokul Shirgaon, PU Coated Pipes (External Polyurethane) Suplier in Akkalkot, PU Coated Pipes (External Polyurethane) Suplier in Chincholi, PU Coated Pipes (External Polyurethane) Suplier in Lote-Parshuram, PU Coated Pipes (External Polyurethane) Suplier in Dombivli, PU Coated Pipes (External Polyurethane) Suplier in Ambernath, PU Coated Pipes (External Polyurethane) Suplier in Mahad, PU Coated Pipes (External Polyurethane) Suplier in Roha, PU Coated Pipes (External Polyurethane) Suplier in Palghar, PU Coated Pipes (External Polyurethane) Suplier in Tarapur (Boisar) and for inder national
Countries we have supplied our products to
South Korea, PU Coated Pipes (External Polyurethane) Exporter in Africa, PU Coated Pipes (External Polyurethane) Exporter in Sri Lanka, PU Coated Pipes (External Polyurethane) Exporter in Syria, PU Coated Pipes (External Polyurethane) Exporter in Taiwan, PU Coated Pipes (External Polyurethane) Exporter in Tanzania, PU Coated Pipes (External Polyurethane) Exporter in Tajikistan, PU Coated Pipes (External Polyurethane) Exporter in Thailand, PU Coated Pipes (External Polyurethane) Exporter in Turkey, PU Coated Pipes (External Polyurethane) Exporter in Turkmenistan, PU Coated Pipes (External Polyurethane) Exporter in Ukraine, PU Coated Pipes (External Polyurethane) Exporter in United Kingdom, PU Coated Pipes (External Polyurethane) Exporter in Arab Emirates (UAE), PU Coated Pipes (External Polyurethane) Exporter in Uzbekistan, PU Coated Pipes (External Polyurethane) Exporter in Vietnam, PU Coated Pipes (External Polyurethane) Exporter in Yemen, PU Coated Pipes (External Polyurethane) Exporter in France, PU Coated Pipes (External Polyurethane) Exporter in Germany, PU Coated Pipes (External Polyurethane) Exporter in Greece, PU Coated Pipes (External Polyurethane) Exporter in Oman, PU Coated Pipes (External Polyurethane) Exporter in Colombia, PU Coated Pipes (External Polyurethane) Exporter in Portugal, PU Coated Pipes (External Polyurethane) Exporter in Japan, PU Coated Pipes (External Polyurethane) Exporter in Lithuania, PU Coated Pipes (External Polyurethane) Exporter in Macau, PU Coated Pipes (External Polyurethane) Exporter in Mongolia, PU Coated Pipes (External Polyurethane) Exporter in Qatar, PU Coated Pipes (External Polyurethane) Exporter in Ireland, PU Coated Pipes (External Polyurethane) Exporter in Malaysia, PU Coated Pipes (External Polyurethane) Exporter in Bangladesh, PU Coated Pipes (External Polyurethane) Exporter in Russia, PU Coated Pipes (External Polyurethane) Exporter in Iran, PU Coated Pipes (External Polyurethane) Exporter in Jordan, PU Coated Pipes (External Polyurethane) Exporter in Singapore, PU Coated Pipes (External Polyurethane) Exporter in Bulgaria, PU Coated Pipes (External Polyurethane) Exporter in Poland, PU Coated Pipes (External Polyurethane) Exporter in Denmark, PU Coated Pipes (External Polyurethane) Exporter in Nigeria, PU Coated Pipes (External Polyurethane) Exporter in Gambia, PU Coated Pipes (External Polyurethane) Exporter in Indonesia, PU Coated Pipes (External Polyurethane) Exporter in Finland, PU Coated Pipes (External Polyurethane) Exporter in Argentina, PU Coated Pipes (External Polyurethane) Exporter in Chile, PU Coated Pipes (External Polyurethane) Exporter in Spain, PU Coated Pipes (External Polyurethane) Exporter in Peru, PU Coated Pipes (External Polyurethane) Exporter in Kuwait, PU Coated Pipes (External Polyurethane) Exporter in India, PU Coated Pipes (External Polyurethane) Exporter in Saudi Arabia, PU Coated Pipes (External Polyurethane) Exporter in Slovakia, PU Coated Pipes (External Polyurethane) Exporter in Slovenia, PU Coated Pipes (External Polyurethane) Exporter in Sweden, PU Coated Pipes (External Polyurethane) Exporter in Switzerland, PU Coated Pipes (External Polyurethane) Exporter in Bahrain, PU Coated Pipes (External Polyurethane) Exporter in the Netherlands, PU Coated Pipes (External Polyurethane) Exporter in United Kingdom, PU Coated Pipes (External Polyurethane) Exporter in Mexico, PU Coated Pipes (External Polyurethane) Exporter in Bulgaria, PU Coated Pipes (External Polyurethane) Exporter in Spain, PU Coated Pipes (External Polyurethane) Exporter in France, PU Coated Pipes (External Polyurethane) Exporter in Germany, PU Coated Pipes (External Polyurethane) Exporter in Colombia, PU Coated Pipes (External Polyurethane) Exporter in Brazil, PU Coated Pipes (External Polyurethane) Exporter in Saudi Arabia, PU Coated Pipes (External Polyurethane) Exporter in Iraq, PU Coated Pipes (External Polyurethane) Exporter in Iran, PU Coated Pipes (External Polyurethane) Exporter in Sudan, PU Coated Pipes (External Polyurethane) Exporter in Libya, PU Coated Pipes (External Polyurethane) Exporter in Tanzania, PU Coated Pipes (External Polyurethane) Exporter in Nigeria, PU Coated Pipes (External Polyurethane) Exporter in New Zealand, PU Coated Pipes (External Polyurethane) Exporter in Paris, PU Coated Pipes (External Polyurethane) Exporter in Switzerland
