Cangzhou Spiral Steel Pipes Group Co.ltd
The Solid Foundation for Project SuccessPipeline for Oil And Gas
Wuzhou Spiral Welded Steel Pipe for Oil & Gas | 18m Standard · Up to 30m Custom · CNAS-Lab Tested
Fewer welds, lower risk, faster installation — the smarter choice for your pipeline project.
🔧 Up to 30m Length → 60% fewer circumferential welds
🔬 CNAS-Accredited Lab → Internationally recognized test reports
🌍 Export to 50+ Countries → Global quality, local support
Delivered by Cangzhou Spiral Steel Pipe Group –China's Leading Large-Diameter Spiral Steel Pipe Mill
OD: 219-3620mm
Wall Thickness: 5-24.5mm
Length: 1-18m or Custom
Coating: FBE 3LPE 3LPP
Steel Grade: PSL2 X42 /X46/X52/X56/X60/X65/X70,etc.
Brand: WuZhou
OEM: Accept
Standard: API Spec 5L/ISO 3183/GB/T 9711/CSA Z245.1,etc.
Delivery Time: 3-45 Days
Payment: TT/LC
Making Process: SSAW
You're Probably Facing These Challenges...
1 Tight deadlines with too many field welds slowing you down?
2 Worried about weld quality in remote locations?
3 Tired of suppliers who can't provide traceable, internationally accepted test reports?
Here's How Wuzhou Solves Them...
1 Longer pipes = fewer welds = faster progress + safer pipeline
2 In-house CNAS lab = full traceability from coil to finished pipe
3 API 5L + ISO certifications = smooth customs clearance and project acceptance
What Is a Spiral Welded Steel Oil Pipe?
A spiral welded steel oil pipe (also called SSAW pipe) is made by spirally forming steel coils and welding the seam using a double-sided submerged arc process. It's manufactured to API 5L PSL1 / PSL2 standards for transporting crude oil, refined products, and natural gas under high pressure.
Why Spiral For Oil & Gas?
1 Spiral welds form an angle of 45-60 ° with the axial direction of the pipeline, resulting in lower stress on the weld when subjected to internal pressure
2 Especially suitable for areas with frequent geological subsidence (ideal for terrains with ground settlement)
3 Large caliber (219-3620mm) has obvious production capacity advantages and high cost-effectiveness for large diameters
Two Core Applications — Pure Focus on Oil & Gas Transmission
1：Crude Oil & Refined Products Pipelines
Spiral Welded Steel Oil Pipe, Pipeline for Oil
Working condition characteristics: sulfur-containing and waxy, requiring corrosion resistance and compactness
Wuzhou Plan: API 5L PSL2 standard, wall thickness 6-24.5mm, flexible matching pressure rating
Natural Gas Transmission Lines
Spiral Welded Pipe Gas, Pipeline for Gas
Working condition characteristics: high pressure, high flow rate, requiring low temperature impact toughness and crack arrest performance
Wuzhou Plan: Steel grade X42-X70, 30 meter ultra long pipe to reduce on-site welding in high-altitude areas
Technical Specifications at a Glance
| Parameter | What We Offer |
| Standards | API 5L PSL1 / PSL2, ISO 3183, GB/T 9711 |
| Steel Grades | Gr.B, X42, X46, X52, X56, X60, X65, X70 |
| Diameter Range | 219mm – 3620mm |
Wall Thickness | 6mm – 24.5mm |
Pipe Length | Standard 18m / Custom up to 30m |
End Finish | Beveled ends (30-35°) — ready for fast field welding |
Testing | 100% UT, X-ray, Hydrostatic — all in our CNAS lab |
Not sure which grade or thickness fits your project? Send us your design pressure and diameter — our engineers will recommend the optimal spec for free.
Why Wuzhou? Compare Us with Ordinary Suppliers
| Dimension | Ordinary Supplier | Wuzhou Steel Pipe |
| Standard Length | 12 meters | 18 meters standard — fewer welds |
| Max Custom Length | 18 meters (limited) | Up to 30 meters — 60% fewer welds |
| Testing Lab | Relies on external labs | In-house CNAS-accredited lab — full traceability |
Max Diameter | Up to 3000mm | Up to 3620mm — covers the largest trunk lines |
Certifications | Basic ISO | API 5L + ISO + CNAS — globally accepted |
Export Track Record | Limited | 50+ countries and regions — proven global experience |
Your Guarantee of Quality — CNAS Lab & Global Certifications
CNAS Laboratory Presentation
Laboratory equipment (universal testing machine, impact testing machine, spectrometer, etc.)
Iconization of Inspection Process: Coil Inspection → Forming → Welding → 100% UT → Hydrostatic Test → Final Release
in a word: Every test report we issue is internationally recognized (ILAC-MRA) — saving you time and money on third-party retesting.
Certification Wall
API 5L Monogram: Your passport to global oil & gas projects
ISO 9001 / 14001 / 45001: Quality, environment, and safety management
CNAS Accreditation: Internationally accepted test reports
Trusted by Projects in 50+ Countries
Central Asia Gas Project
Supplied 30-meter X65 PSL2 SSAW pipes. Reduced field welds by 60%, completed installation 3 weeks ahead of schedule.
Middle East Crude Line
Delivered X52 PSL1 pipes with 3PE coating. Passed all third-party inspections on the first attempt.
Southeast Asia Water Crossing
Provided 24.5mm wall thickness pipes for a river-crossing gas pipeline — zero leak reports after 2 years of operation.
FAQ
Q1: Why choose spiral welded (SSAW) over LSAW or seamless for my oil & gas project?
For large diameters (>24"), SSAW offers better cost-efficiency and lower weld stress.
Q2: How does the 30-meter super-long pipe help me?
Reduces welds from 84 to 34 per kilometer — 60% fewer joints = 60% lower risk.
Q3: Can you supply X70 PSL2 for sour service (H₂S environments)?
Yes. Our CNAS lab controls hardness below 250 HV10, meeting HIC resistance requirements.
Q4: What's your lead time for a custom order?
Typically 1-5 weeks for standard grades; we'll include a clear schedule in your quote.
Q5: How do you ensure consistent quality across large orders?
CNAS lab monitors every batch — from coil chemistry to final hydrostatic testing. Full traceability provided.
Q6: Do your test reports really get accepted overseas without retesting?
Yes — CNAS is ILAC-MRA signatory, so your inspectors can accept our reports directly.
Q7: What's the difference between PSL1 and PSL2?
PSL2 has stricter chemical, toughness, and NDT requirements — ideal for high-pressure/sour service. We offer both.
Q8: Can I visit your factory in Hebei before placing an order?
Absolutely. We welcome factory tours — schedule with us anytime.
Q9: What coating options do you offer?
3PE, FBE, bitumen, and other anti-corrosion coatings available per your project spec.
Q10: Do you provide shipping and logistics support?
Yes — we work with experienced forwarders for smooth delivery to your port of destination.
Still have a question? Contact our oil & gas team directly.
Ready to Make Your Pipeline Project Safer and More Efficient?
Get a Quick Quote
Factory address:
No. 92, Jiefang East Road, Xinhua District, Cangzhou
Phone:+86 15822968134
Email: richard@ssawpipe.com
WhatsApp：8615822968134
Working hours: 7 * 24 On Line
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Carbon steel SSAW pipe API 5L
We offer high-quality steel pipes: DIN EN 10220 spiral welded, API 5L spiral, heavy-duty drill, ARC welded pile, cold-rolled carbon, & spiral round. Made with advanced processes, they boast high strength, corrosion resistance, and good welding. Ideal for oil/gas, construction, bridges, machinery. Customized services available to meet industry demands.
Carbon steel line pipe as per API 5L SSAW/SAWH pipes large outside diameter
FAQ
Why is Cangzhou Spiral Steel Pipe Group considered a Leading spiral Steel pipe mill in China?
Annual production capacity of 400000 tons
13 production lines
OD 3620mm (Asian minority)
CNAS Laboratory
Is 18m pipe difficult to transport?
No. We have dedicated logistics plans using extendable flatbed trailers. For large diameters (eg, 3620mm), we arrange custom barge or escorted trucking solutions. Per-meter freight cost is often lower than 12 m pipe .
Can you provide HIC-tested pipe for sour service?
Yes. We supply API 5L PSL2 pipe with additional HIC (NACE TM0284) and SSC (NACE TM0177) testing, fully certified by our CNAS Lab #L19514. Required for sour gas applications with content H₂S content.