API 5L Gr.B SSAW Steel Pipe | OD 219‑3620mm, Custom Length Up To 30m | Cangzhou Factory
group namePipeline for Oil And Gas
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Min Order2 ton
brand nameCangzhou Spiral Steel Pipe Manufacturers
modelAPI5LGrB-1
payment methodL/C, T/T
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update timeTue, 18 Aug 2026 00:16:00 GMT
Paramtents
Certificate API 5L, CE, ISO 9001
Special Pipe API Pipe
Pipe Ends plain, bevel
Standard API 5L
Technique SAW
Secondary Or Not Non-secondary
Product name API 5L Gr.B steel pipe SSAW
Length 1M-30M or custom
Tolerance ±5% or custom
Section Shape Round
Outer Diameter 219 - 3620 mm
Wall thickness 6 --25.4 mm
Material B, X42, X52, X60, X65, X70, X80
End protector None OR Plastic caps
Packging & Delivery
Min Order2 ton
Briefing
API 5L Grade B spiral submerged‑arc welded line pipe, Made in our 13 production‑line factory, tested by in‑house CNAS lab
Detailed
API 5L Gr.B SSAW Steel Pipe (Spiral Welded Carbon Steel Line Pipe)
API 5L Grade B spiral submerged‑arc welded line pipe, also known as L245 line pipe & MS spiral welded line pipe, PSL1 & PSL2 available. Made in our 13 production‑line factory, tested by in‑house CNAS lab, custom length 16m,18m,max 30m for oil‑gas transmission. Get specs & quotation.
If you are sourcing qualified oil & gas transmission spiral pipeline, helical weld pipe or spiral submerged‑arc welded line pipe for oil, natural gas and fluid transportation projects, API 5L Gr.B SSAW steel pipe (also called L245 line pipe, MS spiral welded line pipe and API 5L Grade B carbon steel transmission tube) is one of the most widely‑used pipeline solutions worldwide.
Manufactured by Cangzhou Spiral Welded Steel Pipe Manufacturing Group, our double-sided submerged arc welded spiral pipe / HSAW steel pipe covers outer diameter 219‑3620 mm, wall thickness 6‑25.4 mm. Supported by 13 full production lines and our independent CNAS‑certified laboratory, we supply standard lengths and extra-long long-length helical carbon steel pipe sections of 16 m, 18 m, up to maximum 30 m. Longer pipes greatly cut on‑site welding joints and reduce leakage risks for long‑distance pipeline construction. Our large‑diameter spiral carbon steel pipe is a cost‑effective option for large energy infrastructure projects using API 5L transmission line pipe.
Product Execution Standard
Our API 5L Gr.B SSAW pipes are strictly manufactured and inspected according to API 5L, including two specification levels: PSL 1 & PSL 2.
PSL 1: General‑purpose API 5L transmission line pipe, basic chemical and mechanical requirements, suitable for conventional oil, gas and water transmission
PSL 2: Higher specification level, stricter chemical composition, mandatory impact test, full material traceability, for critical and high‑safety long-length helical carbon steel pipe projects
Chemical Composition (Heat Analysis, wt%)
| Parameter | PSL‑1 Max Value | PSL‑2 Max Value |
| Carbon (C) | ≤0.26 | ≤0.22 |
| Manganese (Mn) | ≤1.20 | ≤1.20 |
| Phosphorus (P) | ≤0.030 | ≤0.025 |
Sulfur (S) | ≤0.030 | ≤0.015 |
Silicon (Si) | ≤0.45 | ≤0.45 |
Note: Cu ≤0.50%, Ni ≤0.30%, Mo ≤0.15% for PSL‑2; other trace elements comply with API 5L requirements for L245 line pipe | ||
Mechanical Properties
| Performance Parameter | API 5L Gr.B Standard Requirement |
| Minimum Yield Strength | 245 MPa (35500 psi), core indicator of L245 line pipe |
| Minimum Tensile Strength | 415 MPa (60200 psi) |
| Elongation | ≥21% (depends on wall thickness) |
PSL‑2 Extra Limit | Yield strength 245‑448 MPa, max yield‑to‑tensile ratio ≤ 0.93, Charpy impact test ≥27J for API 5L Grade B carbon steel transmission tube |
Available Size & Custom Length Advantage
->Outer Diameter: 219 mm — 3620 mm
->Wall Thickness: 6 mm — 25.4 mm
->Standard lengths: 6 m,9 m,12 m
->Extra‑long optional: 16 m, 18 m, maximum customized length 30 m long-length helical carbon steel pipe
Most factories can only supply pipes below 12 meters. Our production capacity allows single pipe up to 30 meters. Fewer field welds help you shorten construction time, lower welding cost and improve overall pipeline sealing reliability, especially for large‑diameter spiral carbon steel pipe long‑distance oil & gas transmission spiral pipeline projects. Our double-sided submerged arc welded spiral pipe eliminates extra field joints for cross-region pipeline engineering.
Our Factory Strength
13 Full Production Lines
We own 13 complete SSAW spiral welding production lines. Stable monthly output supports large‑volume API 5L Gr.B pipe orders, shorten your lead time and avoid delivery delays for large pipeline EPC projects of oil & gas transmission spiral pipeline and bulk L245 line pipe orders.
30 Meter Spiral Welded Pipe Is Producing
large Diameter SSAW Pipe
Pipe End Treatment
Coating Treatment
Rust Removal
Sandblasting
Pipeline Transmission Equipment
Repair Welding
In‑House CNAS‑Certified Laboratory
All raw materials and finished pipes go through full inspection inside our CNAS accredited lab before shipment.
Inspection items include：
->Chemical composition analysis for L245 line pipe
->Tensile & yield mechanical test of API 5L Grade B carbon steel transmission tube
->Hydrostatic pressure test for double-sided submerged arc welded spiral pipe
->Ultrasonic nondestructive weld inspection
->Dimension tolerance check for long-length helical carbon steel pipe
->Charpy impact test (PSL‑2)
We can provide complete official test reports to meet third‑party inspection and project acceptance requirements for helical weld pipe and HSAW steel pipe. Get specs & quotation.
Chemical composition analysis for L245 line pipe
Tensile & yield mechanical test of API 5L Grade B carbon steel transmission tube
Hydrostatic pressure test for double-sided submerged arc welded spiral pipe
Ultrasonic nondestructive weld inspection
X-ray Testing Online long-length helical carbon steel pipe
Charpy impact test (PSL‑2)
Pipe End, Coating & Optional Processing
->Pipe end: Plain end / 30°~37.5° beveled end
->Anti‑corrosion coating: 3PE, FBE, epoxy coal‑tar pitch, black varnish for MS spiral welded line pipe
->Custom marking, export packaging for sea transportation of API 5L Gr.B SSAW line pipe
Acceptance & Inspection Standard
Each batch of API 5L Gr.B SSAW pipe follows full acceptance procedures:
1. Raw coil material incoming inspection of L245 steel
2. Online dimensional monitoring during forming and welding of double-sided submerged arc welded spiral pipe
3. 100% hydrostatic pressure test
4. Weld seam ultrasonic nondestructive testing
5. Sampling mechanical property and chemical test in CNAS laboratory for API 5L Grade B carbon steel transmission tube
6. Visual inspection, marking and packing check
All inspection records are traceable for your project filing, whether you name it L245 line pipe, spiral submerged‑arc welded line pipe or helical weld pipe. Get specs & quotation.
Main Application
On‑shore oil & natural gas transmission pipelines (API 5L transmission line pipe)
Water and hydrocarbon medium long‑distance delivery via long-length helical carbon steel pipe
Petrochemical plant process pipelines with MS spiral welded line pipe
Municipal large‑diameter energy pipeline projects using double-sided submerged arc welded spiral pipe
Our oil & gas transmission spiral pipeline is widely chosen by global EPC contractors for crude oil and natural gas delivery. Get specs & quotation.
FAQ
Q1: What is API 5L Gr.B SSAW steel pipe?
A: API 5L Gr.B SSAW steel pipe, also called helical weld pipe / HSAW steel pipe / L245 line pipe / API 5L Grade B carbon steel transmission tube, is double-sided submerged arc welded spiral pipe carbon steel API 5L transmission line pipe, widely used for oil, gas and liquid transportation. Our factory produces OD 219‑3620mm long-length helical carbon steel pipe, available in 16m,18m and max 30m custom length, tested in our CNAS laboratory.
Q2: Can you produce API 5L Grade B spiral submerged‑arc welded line pipe in 16m,18m or 30 meter length?
A: Yes. Supported by 13 production lines, we can supply extra-long long-length helical carbon steel pipe, including 16 m, 18 m, up to maximum 30 meters, to reduce on‑site welding work for API 5L transmission line pipe projects.
Q3: What is the difference between API 5L Gr.B PSL1 and PSL2?
A: PSL‑1 meets basic pipeline requirements for MS spiral welded line pipe. PSL‑2 has stricter chemical limits for L245 line pipe, mandatory impact test and full traceability, recommended for critical oil‑gas transmission large‑diameter spiral carbon steel pipe projects.
Q4: Do you provide material test certificates for API 5L Gr.B SSAW pipe?
A: Yes. All double-sided submerged arc welded spiral pipe are inspected inside our CNAS certified lab. We supply MTC, hydrostatic report and NDT inspection documents for each shipment of our oil & gas transmission spiral pipeline and L245 line pipe.
Q5: What outer diameter range can you supply for API 5L Gr.B spiral welded pipe?
A: Our API 5L Gr.B SSAW pipe covers OD 219 mm to 3620 mm, wall thickness 6 mm‑25.4 mm, we support non‑standard size customization of API 5L Grade B carbon steel transmission tube.
Q6: Can API 5L Gr.B SSAW pipe be coated with 3PE anti‑corrosion layer?
A: Yes, we offer one‑stop anti‑corrosion services including 3PE, FBE and epoxy coating for API 5L Grade B carbon steel transmission tube and MS spiral welded line pipe.
Q7: What inspection will you carry out before delivery?
A: Chemical composition test for L245 line pipe, mechanical tensile test, hydrostatic pressure test, ultrasonic weld inspection for double-sided submerged arc welded spiral pipe, dimensional check for long-length helical carbon steel pipe, all finished inside our CNAS laboratory.
Q8: What is your production capacity for large API 5L Gr.B pipe orders?
A: We have 13 complete spiral welded pipe production lines, with stable capacity to handle bulk API 5L transmission line pipe and L245 line pipe projects and guarantee on‑time delivery.
Q9: What pipe ends are available for API 5L Gr.B SSAW steel pipe?
A: We supply plain end and beveled end for double-sided submerged arc welded spiral pipe, plastic end caps are available to protect pipe ends during ocean shipping of MS spiral welded line pipe.
Q10: Can I get a quotation for API 5L Gr.B SSAW spiral welded pipe?
A: Please provide outer diameter, wall thickness, length, PSL level, coating requirement and quantity of your L245 line pipe / long-length helical carbon steel pipe. We will send you a detailed technical quotation quickly.
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- Nearest port for product export
- Tianjin Port, Port of Tangshan
- Delivery clauses under the trade mode
- FOB, CFR, CIF, EXW, FCA
- Acceptable payment methods
- T/T, L/C