shengtian
pre-insulated pipe
Full-chain pipe manufacturer
7+ factories, 80+ warehouses
ASTM / EN / GB standards
PU foam + HDPE/steel jackets
For heating, oil, chilled water lines
Fast delivery, factory price — seeking partners
shengtian
pre-insulated pipe
We are a full-chain steel pipe manufacturer with over 7 production bases and 80+ warehouses globally.
From hot-rolled coils to finished pipes with insulation — in-house production ensures full quality control.
Standards: ASTM A106, A53, EN 253, GB/T 29047, and more.
Available with polyurethane foam (PUF), HDPE/steel jackets, and anti-corrosion coatings.
Supports heat preservation for district heating, chilled water, oil & gas, and industrial systems.
Full size range in stock — fast delivery — competitive factory price.
Looking for long-term partners in heating, thermal, and industrial piping projects.
If you complete the form below we will contact you as soon as possible.
LANGZHENG
pre-insulated pipe
We are a full-chain steel pipe manufacturer with over 7 production bases and 80+ warehouses globally.
From hot-rolled coils to finished pipes with insulation — in-house production ensures full quality control.
Standards: ASTM A106, A53, EN 253, GB/T 29047, and more.
Available with polyurethane foam (PUF), HDPE/steel jackets, and anti-corrosion coatings.
Supports heat preservation for district heating, chilled water, oil & gas, and industrial systems.
Full size range in stock — fast delivery — competitive factory price.
Looking for long-term partners in heating, thermal, and industrial piping projects.
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 pre-insulated pipe?
A pre-insulated pipe is a pipeline system that consists of an inner steel carrier pipe, thermal insulation layer (usually polyurethane foam), and an outer protective casing (PE or steel). It is used for heat preservation and energy efficiency.
What are the main applications of pre-insulated pipes?
Pre-insulated pipes are commonly used in district heating and cooling systems, oil pipelines, steam pipelines, and underground thermal distribution projects.
What insulation materials do you use?
We primarily use polyurethane foam (PUF) for thermal insulation, known for its low thermal conductivity and excellent durability.
What outer jacket materials are available?
The outer casing can be made from HDPE, galvanized steel, or spiral welded steel, depending on the environmental and project requirements.
Can you provide custom sizes and insulation thickness?
Yes, we offer customized pipe sizes, insulation thickness, and jacket materials based on your specific project needs.
Do you support third-party inspection and export service?
Absolutely. We provide full documentation, support third-party inspection, and offer international shipping for pre-insulated piping systems.
pre-insulated 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