Oil & Gas Transmission
API 5L / ISO 3183 line pipe for transmission, gathering, sour service and offshore specifications.
API 5L · ISO 3183 · NACE MR0175 / ISO 15156
Factory-authorized LSAW Line Pipe Export Agent for Energy Projects
We support API 5L / ISO 3183 line pipe projects in Ø406–1422 mm, wall thickness 6.35–52.37 mm and grades up to X80 / L555, alongside seamless, alloy, coated, hydrogen, structural and clad pipe. Every quotation is reviewed against the line list and confirmed in writing.
Factory-authorized first-tier agent
API 5L / ISO 3183 PSL2
Ø406–1422 mm
to X80 / L555
EN 10204 3.1 MTC
FOB Chinese port
Oil & gas transmission · Refining · Coating · Hydrogen and CO₂ · Structure · Bimetallic clad pipe
Export agency · established 2013
API 5L / ISO 3183Ø406–1422 mmL245–L555 / X80
28 MT MOQFOB Chinese portWritten contract basis
Product Range
Six application lines for oil, gas and industrial projects
Tell us the medium, design pressure, temperature, standard, size and destination. We will confirm the commercial scope and issue a written quotation.
Refining & Chemical Process Pipe
EFW and seamless process pipe for high-temperature, high-pressure and low-temperature service.
ASTM A671 / A672 / A691 · A335 P11–P92
Coated Anti-Corrosion Pipe
External FBE, 2LPE, 3LPE, 2LPP and 3LPP systems, plus internal epoxy or drag-reducing lining.
ISO 21809 series · project specification
Hydrogen & CO₂ Transmission
Project-specific line pipe for hydrogen and dense-phase or supercritical CO₂ service.
ASME B31.12 · CGA G-5.6 · AIGA 033/14
High-end Structure Pipe
Structural pipe for piling, marine works and heavy equipment frames.
ASTM A252 Gr.3 · EN 10219 S355J2H
Bimetallic Cladding Pipe
Stainless or alloy liner bonded to a carbon steel body for corrosive process duty.
316L or alloy 825 liner · project specification
Supply Scope
Standards and size ranges reviewed against your line list
LSAW line pipe
API 5L / ISO 3183 PSL1 or PSL2, outside diameter Ø406–1422 mm, wall thickness 6.35–52.37 mm, grades L245/Gr.B through X80/L555. Sour service, low-temperature and offshore requirements are reviewed against the project specification.
Common grades: L245/B · L290/X42 · L320/X46 · L360/X52 · L415/X60 · L450/X65 · L485/X70 · L555/X80.
Seamless, alloy and process pipe
API 5L, ASTM A106 Gr.B/C, A53 Type S, A333 Gr.1/3/6/8, A335 P1–P92, A213, A312, API 5CT, ASTM A671/A672/A691. Typical seamless range is OD 1/2"–24", with project-specific exceptions confirmed in writing.
Selection depends on medium, design temperature, pressure, impact requirements, NACE exposure and the governing project code.
Company Entity
Company details and current commercial terms
Current commercial basis effective 5 November 2026. It remains subject to the signed order contract and any later written amendment.
| Legal name | HEBEI GAOYANG TRADE CO.,LTD |
|---|---|
| Company role | Factory-authorized first-tier export agent |
| Registered address | Xinhua District, Shijiazhuang, Hebei, China |
| Primary scope | LSAW line pipe, seamless and alloy pipe, EFW process pipe, coating, hydrogen and CO₂ pipe, structural pipe, bimetallic clad pipe, fittings and spools |
| Sales email | export@steegaoyangtrde.com |
| +86 186 3303 8617 |
| Incoterm | FOB Chinese port |
|---|---|
| Minimum order | 28 metric tons, all pipe products |
| Payment | 40% deposit with the order; 60% before dispatch |
| Lead time | Normally 25–45 days after deposit, based on the rolling schedule |
| Included documents | EN 10204 3.1 MTC, packing list, invoice, bill of lading and certificate of origin |
| Optional reports | Hydrostatic, NDT and special coating reports are chargeable when specified |
| Contract priority | The signed order contract prevails |
Documents & Coordination
Clear scope before the order, clear documents with it
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Order documents
EN 10204 3.1 MTC, packing list, commercial invoice, bill of lading and certificate of origin are included at no additional charge.
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Optional reports
Hydrostatic and NDT reports, special coating reports and special batch verification are chargeable when listed in the agreed quotation or contract.
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Shipping support
FOB Chinese port shipment; the final port, schedule, packing and document scope are confirmed with the order.
Order Support
Documentation, logistics and after-sales support
Documentation
Standards, dimensions, packing and document requirements are matched to the line list and confirmed in the quotation.
Logistics
FOB Chinese port. Vessel booking and freight assistance can be discussed at the carrier's actual cost.
After-sales
Any claim or technical query is reviewed against the signed contract, order documents and available shipment records.
Buyer Questions
What buyers ask before ordering
What is the minimum order quantity?
28 metric tons for all pipe products. The final order quantity and allocation are confirmed in the contract.
Which standards can be quoted?
API 5L / ISO 3183, ASTM A106, A53 Type S, A333, A335 P1–P92, A213, A312, API 5CT, ASTM A252, EN 10219, and ASTM A671 / A672 / A691 are reviewed against the project specification and confirmed in writing.
Which documents are included?
EN 10204 3.1 MTC, packing list, commercial invoice, bill of lading and certificate of origin are included at no additional charge. Hydrostatic or NDT reports and special coating reports are charged when required.
What are the payment and delivery terms?
FOB Chinese port; 40% deposit with the order and 60% before dispatch; normally 25–45 days after deposit based on the rolling schedule. The signed contract prevails.
Can coated or sour-service pipe be quoted?
Yes, subject to specification review. Coating system, HIC/SSC requirements, inspection scope and the applicable standard must be stated in the inquiry and confirmed in the quotation.
Request a Quotation
Send your line list for a written quotation
Include the standard, grade, outside diameter, wall thickness, length, quantity, end finish, coating, inspection requirements and destination port. If you have a tender document or piping class, send it as it is.
| Sales email | export@steegaoyangtrde.com |
|---|---|
| +86 186 3303 8617 | |
| Working hours | Monday–Saturday, 08:30–20:00 GMT+8 |
| More answers | Steel pipe buyer answers |