SD Xinjiyuan Steel | Bulk Steel Tubes, Plates & Beams | Factory Direct logo
API 5L X65 SSAW Steel Pipe OD 6-2500mm Factory Direct Supplier
API 5L X65 SSAW Steel Pipe OD 6-2500mm Factory Direct Supplier
API 5L X65 SSAW Steel Pipe OD 6-2500mm Factory Direct Supplier
API 5L X65 SSAW Steel Pipe OD 6-2500mm Factory Direct Supplier
API 5L X65 SSAW Steel Pipe OD 6-2500mm Factory Direct Supplier
API 5L X65 SSAW Steel Pipe OD 6-2500mm Factory Direct Supplier
Factory Direct

Bulk Supply · No Middlemen · 2,800+ Specifications

API 5L X65 SSAW Steel Pipe OD 6-2500mm Factory Direct Supplier

API 5L X65 SSAW Steel Pipe, OD 6–2500 mm, ±1% tolerance, plain/beveled ends — spirally submerged arc welded for high-pressure oil and gas pipeline transport, hot-rolled surface with full dimensional consistency across large-diameter ranges. - Original mill test certificates provided per batch, third-party SGS/BV inspection available, ISO 9001 and API 5L certified factory-direct supply with volume pricing for bulk orders.

  • ISO 9001:2015
  • CE EN 10210 / 10219
  • FPC Certified
  • Mill Test Certificate
  • SGS / BV On Request
1 t
Trial MOQ
12 h
Quote Reply
3-7 d
Stock Dispatch
100%
With Mill Certs

Send your size list, grade and monthly tonnage -- our export team returns pricing, stock status and documentation plan.

Technical Data

Specification parameters.

Non-standard sizes, grades and surface finishes are produced to order. Confirm exact tolerances with our engineering team before contract.

Technical specification parameters for API 5L X65 SSAW Steel Pipe OD 6-2500mm Factory Direct Supplier
Parameter Value
Material Grade Q195 - Q690 · 201 / 304 / 316L · ASTM A500
Standard ASTM A554 / A500 · EN 10219 / 10210 · JIS G3466 · GB
Production Type ERW Welded · Seamless · Hot Dip Galvanized
Size Range 20×20 - 500×500 mm · Wall thickness 0.8 - 20 mm
Length 5.8 m / 6 m / 12 m · Custom cutting available
Surface Finish BA Mirror · No.4 Satin · Pickled · Galvanized
MOQ 1 ton trial order · Full container contract volume
Lead Time Ready stock 3-7 days · Custom 15-25 days
Packing Plastic film + woven bag + steel strapping, seaworthy
Port / Terms FOB Qingdao · CIF / CFR · EXW negotiable

Where It Is Used

Application scenarios.

  • Construction & Structural

    Steel frames, curtain wall supports, canopies and load-bearing hollow sections for commercial projects.

  • Infrastructure Projects

    Highway guardrails, bridge components, transmission towers and municipal engineering works.

  • Machinery & OEM

    Equipment frames, agricultural machinery, conveyor structures and fabricated assemblies.

  • Architecture & Decoration

    Handrails, balustrades, interior fittings and decorative mirror-finish stainless tube.

  • Furniture & Hardware

    Shelving systems, display racks, office furniture tubing and hardware wholesale supply.

  • Energy & Petrochemical

    Fluid conveyance frameworks, platform structures and corrosion-resistant piping supports.

Full Description

Product details.

¥560.00

API 5L X65 SSAW Steel Pipe, OD 6–2500 mm, ±1% tolerance, plain/beveled ends — spirally submerged arc welded for high-pressure oil and gas pipeline transport, hot-rolled surface with full dimensional consistency across large-diameter ranges. – Original mill test certificates provided per batch, third-party SGS/BV inspection available, ISO 9001 and API 5L certified factory-direct supply with volume pricing for bulk orders.

Description

Let me work through this step by step.

Gate Check: identifier = “API 5L X65 SSAW Steel Pipe” — not null/empty. Proceed.

Keyword count plan: “API 5L X65 SSAW steel pipe” — need 3-6 occurrences. I’ll place them in: H2 section, H3 application section, H3 grade/process section, H3 hidden costs section, and FAQ. That gives ~5 uses.

Author persona integration: Foshan-based, started in loading/customs, pitfall = improper container loading causing oval deformation on large-diameter SSAW pipes. Need to weave this naturally into relevant sections (loading, hidden costs, why buy from us).

Section-by-section drafting:

  1. Bold positioning statement: identifier = “API 5L X65 SSAW Steel Pipe”. Sum of digits: A(0)+P(0)+I(0)+5+L(0)+X(0)+6+5+S(0)S(0)A(0)W(0)S(0)t(0)e(0)e(0)l(0)P(0)i(0)p(0)e(0) = 5+6+5 = 16. 16 mod 3 = 1. → Direction 1: 全规格一站采购.

Draft: Full-Range Large-Diameter Pipeline Supply — OD 6–2500 mm SSAW pipes in API 5L X65 with mill certificates ready for immediate dispatch.

  1. Technical Specifications table: Use specs from draft. Designation first row.
  1. Application Suitability table: From applications list, intersect with target industries.
  1. H2 — pain point切入: Something about certification gaps and quality uncertainty for large-diameter pipeline steel. Must contain main keyword.
  1. Image placeholder 1
  1. H3 — application matching: How API 5L X65 SSAW steel pipe matches pipeline engineering requirements.
  1. H3 — engineering compliance: API 5L, pressure ratings, third-party inspection for customs.
  1. H3 — grade & process interpretation: SSAW process, X65 grade significance, hot-rolled surface.
  1. Image placeholder 2
  1. H3 — hidden costs of wrong procurement: Oval deformation from bad loading, missing MTC causing customs hold, wrong grade causing weld failures.
  1. H3 — why buy from us: Factory-direct, lab testing, loading optimization (tie to persona), 2800+ specs, SGS/BV inspection.
  1. Documentation & Compliance: 4-6 bullets specific to API 5L X65.
  1. Packaging, Loading & Delivery: 4-6 bullets, each mentioning a product feature.
  1. H3 — inquiry guidance: Engineering-decision-maker tone.
  1. FAQ: 4-5 from draft FAQ topics.
  1. CTA ending: Contact info from client profile.

Word count management: Target 700-1000 English words. Need to be concise in each section.

Prohibited words check: No game-changer, unlock, seamless (wait — “seamless” is prohibited but the product is SSAW welded, so I won’t use “seamless” anyway), robust, leverage, etc.

No Chinese characters — full English output.

Let me now compose the full markdown.

Full-Range Large-Diameter Pipeline Supply — OD 6–2500 mm API 5L X65 SSAW steel pipe inventory covering standard and non-standard pipeline specifications, with original mill test certificates ready for every shipment.

Technical Specifications

Parameter Value
Designation API 5L X65 SSAW Steel Pipe
Product Type SSAW Welded Steel Pipe
Steel Grade API 5L X65
Standard API 5L, ASTM, CE, JIS, ISO 9001
Section Shape Round
Outer Diameter 6–2500 mm
Technique Spirally Submerged Arc Welding (SSAW)
Surface Treatment Hot Rolled
Tolerance ±1%
Ends Plain / Beveled
Alloy Non-Alloy Carbon Steel
Processing Service Welding, Punching, Cutting, Bending, Decoiling
Application Oil & Gas Pipeline, Fluid Transport, Hydraulic Pipe, Gas Pipe, Chemical Fertilizer Pipe, Boiler Pipe
MOQ 1 Ton
Origin Shandong, China

Application Suitability

Industry Typical Applications
Oil & Gas Transmission Onshore and offshore crude oil and natural gas trunk pipelines, gathering lines
Municipal Water Supply Long-distance raw water conveyance mains, intake and outfall structures
Chemical & Fertilizer Plants Process fluid transfer lines, cooling water circulation pipes
Infrastructure Piling Bridge foundation piles, port quay wall structural supports
Industrial Boiler Systems High-temperature steam and hot water transport headers

Certification Gaps That Block Large-Diameter Pipe at Customs

Every API 5L X65 SSAW steel pipe shipped from our mill carries an original test certificate tied to its heat number — eliminating the documentation failures that delay pipeline projects at destination ports.

Global procurement teams sourcing large-diameter welded pipes frequently encounter missing or incomplete mill test certificates, unclear steel grade traceability, and absent third-party inspection reports. When a container of X65 pipeline tubes arrives without proper API 5L compliance documentation, customs authorities at the destination port hold the entire shipment. Project timelines slip, demurrage charges accumulate, and the buyer faces the choice of re-exporting or paying for retrospective certification — neither of which is cheap. [NEED_CITE: API 5L pipeline steel documentation requirements for international shipment]

API 5L X65 SSAW steel pipe spiral weld detail

Matching API 5L X65 SSAW Steel Pipe to Pipeline Engineering Demands

Large-diameter SSAW pipes in X65 grade serve high-pressure transmission lines where structural continuity over long weld joints matters. The spirally submerged arc welding process produces a helical seam that distributes stress evenly along the pipe body, making it suitable for both onshore trunk lines and offshore platform risers. Our API 5L X65 SSAW steel pipe range covers OD 6–2500 mm, allowing engineers to specify exact diameters for flow capacity calculations without compromising on wall thickness or weld integrity. Beveled ends come standard for field welding compatibility, while plain ends serve mechanical coupling applications.

Engineering Compliance and Pressure Rating Considerations

API 5L X65 indicates a minimum yield strength class within the API 5L specification framework, widely specified for hydrocarbon transmission pipelines across Middle East, Southeast Asian, and African infrastructure projects. [NEED_CITE: API 5L steel grade designation system and pressure rating calculations] Engineers selecting X65 over lower grades such as B or X42 gain higher pressure containment capacity for the same wall thickness — a critical factor in deep-trench or subsea installations where weight and material cost scale with diameter. Third-party inspection by SGS or BV before shipment confirms chemical composition and mechanical properties against the API 5L standard, satisfying both project specification requirements and destination-country import regulations.

Understanding the SSAW Process and X65 Grade Selection

Spirally Submerged Arc Welding forms the pipe from steel coil through continuous helical forming, with internal and external submerged arc welds applied simultaneously. This method allows production of large diameters — up to 2500 mm — from relatively narrow coil widths, reducing material waste compared to plate-based alternatives. The hot-rolled surface finish provides adequate corrosion resistance for buried or coated pipeline applications, and serves as a suitable base for subsequent 3PE or FBE coating if the project specification demands enhanced external protection. API 5L X65 sits in the mid-to-upper range of the API pipeline grade spectrum, offering a balance between weldability and strength that makes it the default choice for long-distance gas and oil transmission lines operating at moderate to high pressures. [NEED_CITE: SSAW versus LSAW manufacturing process comparison for large-diameter pipe]

API 5L X65 SSAW steel pipe cross-section showing spiral weld seam

The Hidden Cost of Getting Large-Diameter Pipe Loading Wrong

I once watched a container of large-diameter SSAW pipes arrive at a West African port with every tube end oval-deformed because no internal bracing had been installed before ocean transit. The entire batch required re-rounding at the project site, adding weeks of delay and significant cost. Beyond loading failures, procurement teams also face hidden expenses from material grade substitution — receiving X42 tubes labeled as X65 — which only surfaces during field welding when the weld procedure qualification fails. Missing heat-number traceability means the entire lot may be rejected by the project QA team, regardless of whether the physical material is acceptable. [NEED_CITE: large-diameter steel pipe ocean freight loading and securing standards]

Why Pipeline Buyers Source API 5L X65 SSAW Steel Pipe From Our Mill

We operate three dedicated SSAW production lines in Jinan with monthly capacity exceeding 20,000 tons, meaning factory-direct pricing without trading company margins. Every API 5L X65 SSAW steel pipe undergoes three-stage in-house inspection covering dimensional tolerance, weld seam ultrasonic testing, and chemical composition analysis. Our loading team — trained through years of handling large-diameter tubes — produces a custom container loading plan for every shipment, with internal steel bracing and edge protectors to prevent oval deformation during ocean freight. Original mill test certificates accompany each batch, and SGS or BV third-party inspection is available on request before container sealing. With over 2,800 specifications in ready stock, standard sizes ship within days while custom OD and wall thickness orders complete within typical production lead times.

Documentation & Compliance

  • Mill Test Certificate documenting API 5L X65 chemical composition and mechanical properties per heat number
  • API 5L certification confirming compliance with the latest edition of the specification for pipeline-grade welded steel
  • ISO 9001:2015 quality management certificate covering the full SSAW production process
  • SGS or BV third-party inspection report available upon request for pre-shipment quality verification
  • Material traceability sheet linking each pipe to its heat number, coil batch, and production date
  • Complete customs documentation package including packing list, bill of lading, and certificate of origin

Packaging, Loading & Delivery

  • API 5L X65 SSAW pipes bundled with high-tensile steel strips, with end protectors on beveled edges to prevent damage during handling
  • Internal steel bracing installed inside each large-diameter tube before container loading to prevent oval deformation during ocean transit
  • Hot-rolled surface pipes coated with anti-rust oil before bundling to preserve surface condition during humid climate transit
  • Custom container loading plans optimized for OD 6–2500 mm dimensions, maximizing payload per 20ft and 40ft containers
  • Heat number and API 5L X65 grade stenciled on each pipe end for on-site identification and traceability verification
  • FOB, CIF, and DDP shipping terms available with professional export documentation handling

Start Your API 5L X65 Pipeline Procurement

Submit your specification sheet — including outer diameter, wall thickness, total tonnage, steel grade, and destination port — and receive a detailed quotation with volume pricing, mill test certificate confirmation, and container loading plan within 12 hours. For non-standard dimensions or custom length requirements, our engineering team provides a feasibility assessment and production timeline before you commit.

Request Your API 5L X65 SSAW Steel Pipe Quotation

Send your specifications via email or WhatsApp to receive factory-direct pricing and original mill test certificates.

Company: Shandong Xin Jiyuan Special Steel Tube Co., Ltd

Tel: +86 531 8573 6315

Mobile/WhatsApp/WeChat: +86 188 5315 7756

Email: admin@sdxinjiyuan.com

Frequently Asked Questions

Q: What is the difference between API 5L X65 and other pipeline grades such as X42 or X70?

A: API 5L X65 occupies a mid-to-upper position in the API pipeline grade spectrum, offering higher pressure containment than X42 while maintaining better weldability than X70. The specific grade selection depends on your pipeline operating pressure, wall thickness design, and field welding procedure qualifications.

Q: Can you provide third-party inspection and original mill test certificates for customs clearance?

A: Yes. Every API 5L X65 SSAW steel pipe batch ships with an original mill test certificate documenting chemical composition and mechanical properties. SGS or BV third-party inspection is available on request before container sealing, covering dimensional checks, weld seam testing, and visual inspection.

Q: What is the MOQ for large-diameter SSAW pipes, and do you support split shipments?

A: The minimum order quantity is 1 ton. We support split shipments and consolidated multi-product container loading, allowing you to combine different diameters and wall thicknesses in a single container to optimize freight cost.

Q: How do you handle container loading optimization for heavy large-diameter pipes?

A: Our loading team produces a custom plan for each shipment based on pipe OD, length, and weight. Internal steel bracing is installed inside large-diameter tubes to prevent oval deformation, and edge protectors guard beveled ends. Loading plans maximize payload per container while maintaining weight distribution within shipping limits.

Q: What is the production lead time for custom outer diameter and wall thickness specifications?

A: Standard sizes in API 5L X65 are available from ready stock for immediate dispatch. Custom OD and wall thickness orders follow typical production lead times, with exact timelines confirmed after specification review.

Get Factory-Direct API 5L X65 SSAW Steel Pipe Pricing

Contact us with your project specifications to receive a competitive quotation backed by original mill test certificates and professional export support.

Company: Shandong Xin Jiyuan Special Steel Tube Co., Ltd

Tel: +86 531 8573 6315

Mobile/WhatsApp/WeChat: +86 188 5315 7756

Email: admin@sdxinjiyuan.com

Inquiry · Factory-Direct Supply

Request a quotation for API 5L X65 SSAW Steel Pipe OD 6-2500mm Factory Direct...

Share your required sizes, steel grades, monthly tonnage and destination port. Our export team returns a loaded-container quotation within 12 hours, including stock status, lead time and full documentation plan.

sales@xinjiyuan-steel.com · +86 531 8888 0000 · Mon-Sat 08:30-19:00 GMT+8

  • 20,000+

    Tons monthly capacity

  • 2,800+

    Specifications in stock

  • 50+

    Countries served

  • 3

    Production lines

More From Our Lines