Custom Size Carbon Steel Pipe - Factory Direct Supply
Supplier's customization ability
- Drawing-based customization
- Sample-based customization
- Full customization
Minimum order quantity: 1 ton
Shipping total: To be negotiated
- Lead time:
- confirmed with the quotation
- Packaging:
- standard export packing
- Samples:
- available on request
Product details
Custom Size Carbon Steel Pipe Specification Sheet
| Property | Parameter | Description |
|---|---|---|
| Product Name | Custom Size Carbon Steel Pipe | Tailored carbon steel pipe to specific dimensions |
| Material Grade | ASTM A106 Gr.B / ASTM A53 Gr.B / API 5L Gr.B | Common carbon steel grade equivalents |
| Manufacturing Process | Seamless (SMLS) / ERW / LSAW / SSAW | Multiple process options per project needs |
| Standard Compliance | ASTM A106, ASTM A53, API 5L, EN 10210, GB/T 8163 | Meets major international standards |
| Carbon (C) | ≤0.30% | Carbon content for structural strength |
| Manganese (Mn) | 0.29–1.06% | Improves hardenability and tensile strength |
| Phosphorus (P) | ≤0.035% | Controlled for improved ductility |
| Sulfur (S) | ≤0.035% | Low sulfur for better weldability |
| Silicon (Si) | ≥0.10% | Acts as deoxidizer and strengthener |
| Tensile Strength | ≥415 MPa | Minimum value per ASTM A106 Gr.B |
| Yield Strength | ≥240 MPa | Minimum yield strength requirement |
| Elongation | ≥30% | Ductility in 50 mm gauge length |
| Custom OD Range | 10 mm–1220 mm | Non-standard outer diameters available on request |
| Custom Wall Thickness | 1 mm–120 mm | Tailored wall thickness per client specification |
| Custom Length | 1 m–18 m or as required | Cut-to-length and random lengths supported |
| Surface Treatment | Black painted, varnished, galvanized, 3LPE coated | Multiple anti-corrosion options |
| Application | Oil & gas, construction, water supply, mechanical engineering | Wide range of industrial applications |
| Certification | EN 10204 3.1, ISO 9001, API 5L, PED 2014/68/EU | Quality certifications provided with shipment |
| Packaging | Bundled with steel strips, plastic caps, waterproof wrapping | Standard seaworthy export packaging |
| MOQ | 5 tons | Minimum order quantity for custom sizes |
Custom Size Carbon Steel Pipe - Factory Direct Supply
Custom size carbon steel pipe delivers a tailored piping solution for projects where standard dimensions fall short. Manufactured to buyer-specified outer diameters, wall thicknesses, and cut lengths, these pipes serve critical roles in structural fabrication, fluid transport, mechanical processing, and energy infrastructure. Whether you require a non-standard OD for a retrofit project or precise cut lengths to minimize on-site waste, our mill-direct supply chain ensures dimensional accuracy, consistent material quality, and factory-competitive pricing for global B2B buyers.
What Is Custom Size Carbon Steel Pipe?
Custom size carbon steel pipe refers to carbon steel tubular products manufactured or processed to non-standard dimensions specified by the purchaser. Unlike off-the-shelf stock sizes, these pipes are produced with tailored outer diameters ranging from 21.3 mm to 1420 mm, wall thicknesses from 1.5 mm to 60 mm, and lengths up to 18 meters—conforming to standards such as ASTM A106/A53, API 5L, EN 10210, or GB/T 8162 depending on end-use requirements.
Custom Size Carbon Steel Pipe Technical Specifications
Our custom carbon steel pipes are manufactured according to the following key parameters:
| Parameter | Range / Detail |
|---|---|
| Material Grades | ASTM A106 Gr.B, A53 Gr.B, API 5L Gr.B–X70, Q345B, S355J2H |
| Outer Diameter | 21.3 mm – 1420 mm (customizable) |
| Wall Thickness | 1.5 mm – 60 mm |
| Length | Up to 18,000 mm, cut-to-length available |
| Manufacturing Process | Seamless (hot-rolled), ERW, LSAW, SSAW |
| Tensile Strength (A106 Gr.B) | ≥ 415 MPa per ASTM A106/A106M-19a |
| Yield Strength (A106 Gr.B) | ≥ 240 MPa |
| Carbon Content (A106 Gr.B) | ≤ 0.30% |
| Surface Treatment | Black paint, varnish, oil coating, galvanized, or bare |
Key Applications for Custom Carbon Steel Pipe
- Oil & Gas Pipelines: API 5L-compliant custom pipes employed for high-pressure transmission lines where non-standard wall thickness is required for specific MAOP calculations.
- Structural & Mechanical Engineering: Hollow sections in custom ODs find extensive application in bridge supports, building columns, and heavy equipment frames per EN 10210-1:2006.
- Power Generation: ASTM A106 Gr.B seamless pipes in custom lengths serve boiler systems and high-temperature steam lines operating up to 400°C.
- Water & Fluid Transport: SSAW and ERW custom size carbon steel pipe solutions for municipal water supply, irrigation, and industrial process piping.
Why Choose Our Custom Size Carbon Steel Pipe
With over 15 years of export experience, we operate an integrated supply model combining in-house mill production with precision cutting and processing facilities. Each custom size carbon steel pipe order ships with EN 10204 3.1 mill test certificates, and our quality management system is certified to ISO 9001:2015. We maintain annual production capacity exceeding 200,000 metric tons, enabling us to handle both trial orders and large-volume project contracts with reliable lead times.
Frequently Asked Questions
What is the minimum order quantity (MOQ)?
For standard custom size carbon steel pipe orders, our MOQ starts at 5 metric tons. Trial orders of 1–2 tons may be accommodated for new customers upon discussion.
Do you provide material test certificates?
Yes. Every shipment includes EN 10204 Type 3.1 mill test certificates covering chemical composition, mechanical properties, and dimensional inspection results.
What is the typical delivery time?
Standard custom orders are fulfilled within 15–25 working days from order confirmation. Urgent or small-batch requirements may ship within 10 days subject to current mill scheduling.
Can you produce non-standard OD and wall thickness combinations?
Absolutely. Our rolling and welding lines accommodate OD tolerances per ASTM A530/A530M and custom wall thicknesses beyond standard schedules. Provide your drawings or specifications, and our engineering team will confirm feasibility within 24 hours.
Get a Competitive Quote for Custom Size Carbon Steel Pipe
Ready to source custom size carbon steel pipe at mill-direct rates? Share your required dimensions, grade, quantity, and delivery destination. Our dedicated sales team provides detailed quotations—including FOB, CFR, or CIF pricing—within one business day. Explore our carbon steel seamless pipe or API 5L line pipe catalog for additional options. Contact us today to get started.

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Know your supplier
Supplier's customization ability
- Drawing-based customization
- Sample-based customization
- Full customization
Minimum order quantity: 1 ton
Shipping total: To be negotiated
- Lead time:
- confirmed with the quotation
- Packaging:
- standard export packing
- Samples:
- available on request