shengtian
Steel-Plastic Composite Pipe
Full-chain pipe manufacturer
7+ factories, 80+ warehouses
PE/PVC-lined, corrosion-resistant
Water, drainage, fire pipeline use
ASTM / GB / CJT / ISO standards
Fast delivery, factory price — seeking partners
shengtian
Steel-Plastic Composite Pipe
We are a full-chain steel pipe manufacturer with 7+ production bases and 80+ warehouses globally.
From hot-rolled coils to inner welded pipes, plastic lining, coating, packaging — fully in-house production.
Available with PE/PP/PVC plastic inner linings and anti-corrosion outer layers.
Standards: CJ/T 183, GB/T 28897, ISO 17456, and more.
Suitable for potable water, drainage, fire protection, chemical transport, and municipal pipelines.
All standard sizes in stock — fast delivery — factory-direct pricing.
Looking for long-term partners and project distributors worldwide.
If you complete the form below we will contact you as soon as possible.
LANGZHENG
Steel-Plastic Composite Pipe
We are a full-chain steel pipe manufacturer with 7+ production bases and 80+ warehouses globally.
From hot-rolled coils to inner welded pipes, plastic lining, coating, packaging — fully in-house production.
Available with PE/PP/PVC plastic inner linings and anti-corrosion outer layers.
Standards: CJ/T 183, GB/T 28897, ISO 17456, and more.
Suitable for potable water, drainage, fire protection, chemical transport, and municipal pipelines.
All standard sizes in stock — fast delivery — factory-direct pricing.
Looking for long-term partners and project distributors worldwide.
Spiral Steel Pipe Manufacturer – Coated, Insulated & Composite Options Available
SSAW Pipe / Anti-corrosion Pipe / Pre-insulated Pipe / Steel-Plastic Composite Pipe
Full-Chain Spiral Steel Pipe Solutions
SSAW spiral pipes with full-chain processing — forming, welding, coating, insulation & delivery.
✅ API/ASTM/EN/GB certified
✅ Daily output 1,000+ tons
✅ Trusted by EPCs in 30+ countries
Full-Chain Spiral Steel Pipe Manufacturer
Integrated Spiral Pipe Solutions: Production, Coating, Stock, Delivery
01
Spiral Pipe Production
We specialize in SSAW spiral welded steel pipe manufacturing, with advanced forming, automatic welding, and ultrasonic testing equipment.
Custom diameters up to 3000mm – ideal for water, oil & gas pipelines, piling, and structural projects.
🔘 Custom sizes available
🔘 Meets API, ASTM, EN, GB standards
02
Anti-Corrosion & Insulation Processing
We provide professional anti-corrosion treatments (3LPE, FBE, epoxy) and pre-insulated pipe solutions.
In-house coating lines ensure strict quality control and fast delivery.
🔘 Internal & external coating options
🔘 Suitable for underground, marine, district heating lines
03
Scale & Logistics
With over 7 production bases and 80+ warehouse sites worldwide, we maintain over 300,000 tons of steel pipes in stock.
We support bulk orders, fast lead times, and global logistics services.
🔘 All major sizes in stock
🔘 Long-term supply for global EPCs & contractors.
Spiral Pipe Production
We specialize in SSAW spiral pipes up to 3000mm.
Advanced welding + ultrasonic testing = reliable quality.
Used for water, oil, gas, piling & structural projects.
Standards: API, ASTM, EN, GB
Anti-Corrosion & Insulation
3LPE, FBE, epoxy coating + insulation layer processing.
In-house coating lines for fast lead time & strict QC.
Options: internal/external coating, pre-insulation
Scale & Logistics
Over 300,000 tons in stock, ready to ship.
7 production bases + 80+ global warehouses.
Serving bulk orders & long-term EPC contracts
300,000+ Tons
Year-round inventory across all specs
7 Factory Bases
Full-process production, self-owned plants
80+ Warehouses
Global stock for fast local dispatch
100+ Countries
Long-term partners worldwide
What our customers say
Hear from our satisfied customers who have experienced the quality and value of our products and services.
We’ve been sourcing spiral welded pipes from Shengtian for over 3 years.
Welding quality is reliable, and their anti-corrosion coating never fails.
Jordan Smith
Shengtian offers custom diameters and coatings for our oil & gas projects.
Their fast response and technical support save us a lot of time.
Li Song
What impressed us most was the SSAW production capacity.
They delivered 3,000mm pipes on time with full test reports.
Casey Williams
We switched to Shengtian after comparing spiral pipe samples from 5 suppliers.
Their coating thickness and weld seams are always consistent.
Riley Brown
Stock is available, even for large pipe diameters.
Their logistics team helped us meet every deadline for our EPC project.
Morgan Davis
Excellent experience with Shengtian.
They handled coating, beveling, insulation, and docs smoothly.
Always fast response and on-time shipment.
Cameron Miller
Cooperation Cases
What our customers say
Hear from our satisfied customers who have experienced the quality and value of our products and services.
We’ve been sourcing spiral welded pipes from Shengtian for over 3 years.
Welding quality is reliable, and their anti-corrosion coating never fails.
Jordan Smith
Shengtian offers custom diameters and coatings for our oil & gas projects.
Their fast response and technical support save us a lot of time.
Li Song
What impressed us most was the SSAW production capacity.
They delivered 3,000mm pipes on time with full test reports.
Morgan Davis
Excellent experience with Shengtian.
They handled coating, beveling, insulation, and docs smoothly.
Always fast response and on-time shipment.
Casey Williams
Frequently Asked Questions
Find answers to commonly asked questions about our products and services.
What is a steel-plastic composite pipe?
A steel-plastic composite pipe combines a welded steel pipe as the base with a corrosion-resistant plastic coating (such as PE, EP, or PPR) on the inner or outer surface, enhancing both strength and corrosion resistance.
What are the advantages of steel-plastic composite pipes?
These pipes offer the mechanical strength of steel and the corrosion resistance, smooth flow, and hygiene of plastic, making them ideal for long-term piping systems.
What applications are steel-plastic pipes suitable for?
They are widely used in water supply, fire protection systems, gas pipelines, industrial fluid transport, and municipal engineering.
What coatings do you offer for composite pipes?
We provide various coatings including internal and external PE, epoxy resin (FBE), and PP-R, depending on your performance and environment requirements.
Can you supply both straight and coiled pipes?
We mainly supply straight lengths (6m or customized), but coiled pipes may be available for small-diameter PE-coated products on request.
Do your composite pipes meet international standards?
Yes. Our steel-plastic composite pipes comply with GB/T, ASTM, and ISO standards, and we offer certification and third-party inspection as needed for export projects.
Steel-Plastic Composite Pipe
We are a full-chain galvanized pipe manufacturer with 7 production bases and 80+ warehouses worldwide.
Welcome to visit our factory — see our production lines in action, check real inventory, and discuss long-term cooperation face-to-face.
Let’s grow together with strength, scale, and trust.
Home
Full-chain manufacturer with 7 factories and 80+ warehouses worldwide.
Visit us to see the real production and inventory — let’s build long-term cooperation on trust and scale.
If you complete the form below we will contact you as soon as possible.
Contact Us
Here’s how you can contact us for any questions or concerns.
Address
No. 070, Group 4, Huwan Village, Qingyihu Town, Shuyang County, Suqian City, Jiangsu Province, 223600, China
Phone/WhatsApp/WeChat
+8618526263999
shengtianyonghe@gmail.com