3PE Insulated Spiral API Certified for Agricultural Irrigation Sewage
Internal epoxy external 3PE anticorrosion steel pipe is also known as TPEP anticorrosion steel pipe (T, three layers of the initial letters of the English Three, PE refers to polyethylene, EP refers to epoxy resin), is in the external 3PE internal fusion bonded epoxy anticorrosive steel pipe and external single-layer polyethylene composite steel pipe epoxy composite steel pipe on the basis of the upgraded again the product is the current long-distance pipeline buried in the commonly used form of corrosion of the steel pipe.
Advantage Of TPEP Spiral Welding Pipe
Internal oxygen external 3PE (TPEP)anti-corrosion spiral steel pipe has those advantages:
1. Good anti-corrosion performance
2. Cathodic peel resistance
3. High mechanical strength
4. Strong bearing capacity
5. Green and pollution-free
6. Smooth inner wall of pipeline
7. Low coefficient of friction
Complete Steel Grade For Your Square Steel Pipe
Yuantai Derun Square Steel Pipe – Diverse Steel Grades for Global Applications
Yuantai Derun offers an extensive selection of square steel pipe steel grades, catering to specialized requirements across international markets. Our products comply with major global standards, including:
☆ American Standard (ASTM): Gr. A, B, C, etc.
☆ European Standard (EN): S235, S275, S355, S420, S460, etc.
☆ Japanese Standard (JIS): SS400, STKR400, STKR490, etc.
☆ Chinese Standard (GB): Q195, Q235, Q355, etc.
☆ Canadian Standard (CSA): 300W, 350W, etc.
For a detailed quotation tailored to your needs, please share your specific steel grade requirements with us today.
TPEP SSAW Steel Pipe Standards
API 5L, ASTM A501/500, bs,EN10210/10219,JIS G3466,CJ/T120-2016,GB/T23257-2017,AWWA-C213-2015,etc.
Application Of TPEP Spiral Steel Pipes
TPEP anti-corrosion spiral steel pipe is used for those industries,such as:
1. Water supply and drainage
2. Seawater transportation
3. Warm water delivery
4. Oil pipeline
5. Gas transportation
6. Irrigation of farmland
3PE Spiral Steel Pipes Making Process mainly including those steps:
bare spiral welded steel pipe->Intermediate frequency preheating->Shot blasting rust removal->Rust removal quality inspection->Intermediate frequency preheating->Powder coating->Adhesive->Polyethylene layer->water cooling->Coating inspection->3PP anti-corrosion pipe storage

Yuantai Derun Square Steel Pipes – Quality Assured at Every Stage
From raw material sourcing to finished products, Yuantai Derun implements rigorous quality control at every step. We exclusively use traceable raw materials from reputable manufacturers, subjecting them to comprehensive inspections, including but not limited to:
● Dimensional & Visual Checks (appearance, size, straightness)
● Mechanical Testing (impact resistance, yield & tensile strength, hardness)
● Material Analysis (chemical composition, metallographic examination)
● Non-Destructive & Corrosion Testing (UT inspection, salt spray testing)
Contact us today to discuss your specific testing requirements—we ensure precision and reliability in every pipe.
| Product Description | |
| Outer Diameter | 219mm to 4500mm |
| Wall Thickness | 4-30 mm |
| Length | 4-24M according to client requirement |
| Tolerance | ±5% or as required |
| Brand | Yuantai Derun Steel Pipe Manufacturing Group |
| Model | SSAW/LSAW |
| Surface Treatment | Black painted or REQUEST |
| Standards | ASTM A500/A501,EN10219,EN10210 |
| Certificate | CE,LEED,BV,PHD&EPD,BC1,EN10210/10219, ISO9000/14001/45001,DNV,ABS,JIS G3466 |
| Brand | Yuantai Derun or OEM |
| MOQ | 2-5 Tons or No minimum order |
| Delivery Time | 7-30 days |
| Samples | Free Samples Get Free Sample Now! |

+86 18526786715
18526786715




