Carbon Steel Welded Pipe - High-Strength Industrial Grade

Kuaima Steel Co., Ltd.

Verified Custom manufacturer · 7 yrs ·

China

Customizable Rock-bottom price

$620 1-49 ton Base price

$595 50-99 ton 4% off

$580 ≥100 ton 6.5% off

Price validity: subject to market conditions

Supplier's customization ability

Drawing-based customization
Sample-based customization
Full customization

Quantity

Minimum order quantity: 1 ton

Shipping total: To be negotiated

Subtotal of goods US$ 620.00

Start order request

Payment and delivery

Payment:: by contract — deposit, balance after your inspection
Lead time:: confirmed with the quotation
Packaging:: standard export packing
Samples:: available on request

Product details

Technical Specifications of Carbon Steel Welded Pipe

Property	Parameter	Description
Product Name	Carbon Steel Welded Pipe	ERW/LSAW/SSAW welded carbon steel pipe
Material Grade	ASTM A53 Gr.B / A500 Gr.B / API 5L Gr.B	International grade equivalents
Manufacturing Process	ERW, LSAW, SSAW	Electric Resistance Welded, Longitudinal/Spiral Submerged Arc Welded
Standard Compliance	ASTM A53, ASTM A500, API 5L, EN 10219, BS 1387	Meets major international standards
Carbon (C)	≤0.26%	Carbon content per ASTM A53 Gr.B
Manganese (Mn)	≤1.20%	Improves strength and hardenability
Phosphorus (P)	≤0.035%	Controlled for ductility
Sulfur (S)	≤0.035%	Low sulfur for improved weldability
Silicon (Si)	≤0.35%	Deoxidizer in steelmaking process
Tensile Strength	≥415 MPa	Minimum tensile strength per ASTM A53 Gr.B
Yield Strength	≥240 MPa	Minimum yield strength
Elongation	≥22%	Ductility in 50mm gauge length
OD Range	21.3mm - 2540mm	Available outer diameter options
Wall Thickness	0.8mm - 40mm	Standard and custom wall thickness
Length	5.8m - 12m or custom	Standard and custom lengths available
Surface Treatment	Black, Galvanized, Anti-corrosion Coated, Oiled	Multiple surface finish options
Application	Structural, Water/Gas Transport, Fencing, Scaffolding	Typical application industries
Certification	EN 10204 3.1, ISO 9001, API 5L	Quality certifications provided
Packaging	Bundled with steel strips, plastic caps on ends	Standard export packaging
MOQ	5 tons	Minimum order quantity

Carbon Steel Welded Pipe - High-Strength Industrial Grade

Carbon steel welded pipe is a cost-effective and structurally reliable tubular product manufactured by forming flat steel strips or plates into cylindrical shapes and joining them through electric resistance welding (ERW) or submerged arc welding (SAW). Engineered to deliver superior tensile properties and consistent dimensional accuracy, this pipe serves critical roles in fluid transportation, structural frameworks, and industrial process systems. Whether you operate in construction, petrochemical, or water infrastructure sectors, carbon steel welded pipe provides the mechanical performance and value-driven pricing that demanding projects require.

Carbon steel welded pipe supplier

What Is Carbon Steel Welded Pipe?

Carbon steel welded pipe refers to a hollow steel section produced by welding the longitudinal or spiral seam of a formed steel strip. Unlike seamless alternatives, welded pipe offers tighter wall thickness tolerances and more efficient production at larger diameters. It is manufactured in accordance with ASTM A53/A53M-22 (Type E and Type S), ASTM A500, and EN 10219-1:2006, ensuring reliable chemical composition and mechanical properties for structural and pressure applications.

Carbon Steel Welded Pipe Technical Specifications

Our carbon steel welded pipe inventory covers a comprehensive range of dimensions and grades to meet diverse project requirements:

Parameter	Specification
Outside Diameter	21.3 mm – 2540 mm (1/2" – 100")
Wall Thickness	1.0 mm – 40 mm
Length	5.8 m, 6 m, 11.8 m, 12 m, or custom cut
Steel Grades	ASTM A53 Gr.B, A500 Gr.B/C, API 5L Gr.B–X65, Q235B, Q345B
Yield Strength (A53 Gr.B)	≥ 241 MPa minimum per ASTM A53/A53M-22
Tensile Strength (A53 Gr.B)	≥ 414 MPa minimum
Carbon Content (A53 Gr.B)	≤ 0.30% maximum
Welding Process	ERW, LSAW, SSAW
Surface Treatment	Black, oiled, galvanized, epoxy coated, 3LPE
Standards	ASTM A53, ASTM A500, API 5L PSL1/PSL2, EN 10219, BS 1387

Key Applications of Carbon Steel Welded Pipe

The robust mechanical integrity and excellent welding characteristics of carbon steel welded pipe make it the preferred choice for numerous industrial sectors:

Oil and Gas Transmission: Line pipe manufactured to API 5L specifications for transporting crude oil, natural gas, and refined products across long-distance pipeline networks.
Structural Construction: Columns, trusses, and piling conforming to ASTM A500 Gr.C with 345 MPa minimum yield strength for commercial and industrial buildings.
Water Supply and Drainage: Municipal water distribution and sewage systems utilizing pipes with anti-corrosion coatings per AWWA C200 standards.
Mechanical and Automotive: Precision welded tubing for machinery frames, conveyor rollers, and vehicle chassis components.
Fire Protection Systems: Sprinkler and standpipe installations requiring pipes that meet ASTM A795 and UL/FM certification.

Frequently Asked Questions

What is the minimum order quantity (MOQ)?

Our standard MOQ for carbon steel welded pipe is 5 metric tons per size and specification. For non-standard dimensions or custom coating requirements, a minimum of 10 metric tons may apply.

Carbon steel welded pipe wholesale

Do you provide material test certificates?

Yes. Every shipment includes EN 10204 Type 3.1 mill test certificates documenting chemical analysis, mechanical testing results, hydrostatic test records, and dimensional inspection data.

Carbon steel welded pipe China

What is the typical delivery time?

Stock items in common sizes ship within 7–10 business days. Custom orders, including specific grades or coatings, typically require 20–35 days depending on production scheduling and quantity.

Can you cut to custom sizes?

Absolutely. We offer precision cutting, beveling, and end-preparation services. Tolerances of ±1.0 mm on length are achievable for carbon steel welded pipe orders requiring exact dimensions.

Get a Competitive Quote for Carbon Steel Welded Pipe

Ready to source premium-grade carbon steel welded pipe at factory-competitive pricing? Our technical team brings over 15 years of experience in steel pipe supply for global infrastructure and energy projects. Contact us today with your specifications—including diameter, wall thickness, grade, coating, and quantity—and receive a detailed quotation within 24 hours. For applications requiring alternative materials, explore our stainless steel welded pipe or seamless carbon steel pipe options.

Ratings & Reviews

4.5

Based on 8 reviews

5 5

4 2

3 1

2 0

1 0

Chris Martin

Canada

2025-09-02

Acceptable Quality Carbon Steel Pipe, Packaging Issue Resolved

Ordered 8 tons of ASTM A53 Gr.B ERW pipe, 88.9mm OD x 5.49mm wall, for fire protection sprinkler installations across three commercial sites in Ontario. Material quality was acceptable — chemical and mechanical properties on the 3.1 certificates were within ASTM A53 requirements, and the pipes passed our incoming hydrostatic test checks. However, approximately 15% of the bundle arrived with damaged plastic end caps, exposing the pipe ends to moisture during transit. We found minor surface rust on the exposed ends of around 12 pieces. After raising this with the supplier, they responded within one business day and offered a partial credit for the affected pieces, which was fair. The underlying pipe material was unaffected after cleaning. Delivery was 9 days, which was fast. We would order again but will specify reinforced end protection in the next purchase order.

Wei Chen

Singapore

2025-09-24

Excellent API 5L PSL2 X52 Pipe for Petrochemical Pipeline

This was our fourth procurement from this supplier, covering 60 tons of API 5L PSL2 X52 LSAW welded pipe, 457mm OD x 14.3mm wall, for a refinery interconnecting pipeline in Jurong Island. PSL2 documentation requirements are stringent and the supplier delivered — full traceability records, CVN impact test results at -20°C averaging 68J, and ultrasonic weld inspection reports were all included in the document package before shipment. Carbon equivalent values on the certs were 0.38%, supporting good field weldability for our construction team. Goods arrived 11 days ahead of the scheduled delivery date, which helped us recover schedule on the project. Our QA inspector was on-site for mill inspection and reported no issues with the production run. Consistently the most reliable overseas pipe supplier in our approved vendor list.

Carlos Silva

Brazil

2025-10-13

Reliable SSAW Pipe for Industrial Conveyor System, Good Pricing

We purchased 12 tons of SSAW welded pipe, 508mm OD x 9mm wall, Q235B grade, black finish, for conveyor roller support structures at our São Paulo plant. Pipe geometry was consistent and the spiral weld seam showed no visible undercut or porosity on visual inspection. Mechanical properties on the test certificates were within expected range for Q235B. Delivery took 25 days, which was on the longer end of what was quoted, though the supplier proactively updated us with shipping status. Price was approximately 9% below what we had paid a local Brazilian distributor for similar specification last quarter. Dimensional tolerance on OD was ±1.2mm on some pieces, slightly wider than the ±1.0mm we requested — not a problem for this application but worth noting for tighter structural uses.