Carbon Steel Pipe Manufacturer - High-Quality Seamless & Welded Pipes

Kuaima Steel Co., Ltd.

Verified Custom manufacturer · 7 yrs ·

China

Customizable Rock-bottom price

$925 1-49 ton Base price

$885 50-99 ton 4.3% off

$865 ≥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$ 925.00

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

Carbon Steel Pipe Manufacturer – Product Specifications

Property	Parameter	Description
Product Name	Carbon Steel Pipe	Seamless and welded carbon steel pipes for industrial use
Material Grade	ASTM A106 Gr.B / A53 Gr.B / API 5L Gr.B	Common grades supplied by carbon steel pipe manufacturers
Manufacturing Process	Seamless (HFS/CDS), ERW, LSAW, SSAW	Multiple process options available
Standard Compliance	ASTM A106, ASTM A53, API 5L, EN 10210, EN 10219	Meets major international pipe standards
Carbon (C)	≤0.30%	Carbon content per ASTM A106 Gr.B
Manganese (Mn)	0.29–1.06%	Enhances strength and hardenability
Phosphorus (P)	≤0.035%	Controlled for improved ductility
Sulfur (S)	≤0.035%	Low sulfur ensures good 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%	Measured in 50 mm gauge length
OD Range	6 mm – 1220 mm	Covers seamless and welded pipe sizes
Wall Thickness	1 mm – 120 mm	Standard and custom wall thickness available
Length	5.8 m – 12 m or custom	Single random, double random, or cut-to-length
Surface Treatment	Black painted, varnished, oiled, galvanized	Corrosion protection options from manufacturer
Application	Oil & gas, construction, power plant, water supply	Widely used across industrial sectors
Certification	EN 10204 3.1, ISO 9001, API 5L, PED 2014/68/EU	Quality certifications provided by manufacturer
Packaging	Bundled with steel strips, plastic caps on ends	Standard seaworthy export packaging
MOQ	5 tons	Minimum order quantity per size

Carbon Steel Pipe Manufacturer - High-Quality Seamless & Welded Pipes

As a trusted carbon steel pipe manufacturer, we supply premium-grade seamless and welded carbon steel pipes engineered for demanding industrial environments. Our production facilities deliver pipes that comply with ASTM A106/A53, API 5L, and EN 10210 standards, serving clients across oil and gas, construction, power generation, and water transmission sectors. Whether you require large-diameter line pipes or precision-machined boiler tubes, our mill-direct supply chain ensures factory-competitive pricing with consistent quality assurance.

What Is a Carbon Steel Pipe?

A carbon steel pipe is a tubular steel product with carbon content ranging from 0.06% to 1.65% by weight, manufactured through either seamless extrusion or longitudinal/spiral welding processes. These pipes deliver robust structural integrity and superior tensile properties, making them the preferred choice for high-pressure fluid transport, structural frameworks, and mechanical applications.

Carbon Steel Pipe Technical Specifications

Our carbon steel pipes are manufactured according to the following internationally recognized standards and parameters:

Parameter	Specification
Standards	ASTM A106 Grade B, ASTM A53 Grade B, API 5L (PSL1/PSL2), EN 10210-1:2006
Outside Diameter	21.3 mm – 914.4 mm (1/2" – 36")
Wall Thickness	1.5 mm – 60 mm per schedule (SCH 10 – SCH XXS)
Yield Strength (A106 Gr.B)	240 MPa minimum per ASTM A106/A106M-19a
Tensile Strength (A106 Gr.B)	415 MPa minimum
Carbon Content (A106 Gr.B)	0.30% maximum
Pipe Types	Seamless (SMLS), ERW, LSAW, SSAW
Surface Treatment	Black painted, varnished, galvanized, 3LPE coated

Why Choose Our Carbon Steel Pipe Manufacturing

Integrated production line: Annual output capacity exceeding 200,000 metric tons across seamless and welded pipe mills
Rigorous quality control: 100% hydrostatic testing, ultrasonic examination per ASTM E213, and dimensional inspection on every heat
Certified operations: ISO 9001:2015, API 5CT/5L licensed, and PED 2014/68/EU compliant
Global logistics: Export-standard bundling and container loading with experience shipping to over 60 countries

Frequently Asked Questions

What is the minimum order quantity (MOQ) for carbon steel pipes?

Our standard MOQ starts at 5 metric tons for common sizes. For non-standard dimensions or special wall thicknesses, we accept orders from 10 metric tons per specification.

Do you provide material test certificates?

Yes. Every shipment includes EN 10204 Type 3.1 Mill Test Certificates covering chemical composition, mechanical properties, hydrostatic test results, and NDE reports.

Carbon steel pipe manufacturer China

What is the typical delivery time?

Stock items ship within 5–7 working days. Custom-manufactured carbon steel pipes typically require 20–35 days depending on diameter, wall thickness, and coating requirements.

Can you supply pipes cut to custom lengths?

Absolutely. We offer precision cutting from 0.5 m to 18 m in fixed or random lengths, along with beveling, threading, and groove preparation per ASME B16.25 specifications.

Carbon steel pipe supplier

Get a Competitive Quote for Carbon Steel Pipes

Ready to source from a reliable carbon steel pipe manufacturer with mill-direct rates? Contact our sales team today with your project specifications — including pipe standard, grade, dimensions, quantity, and required coatings. We respond to all inquiries within 12 hours with a detailed quotation and delivery schedule tailored to your project timeline.

Carbon steel pipe wholesale

Ratings & Reviews

4.5

Based on 8 reviews

5 5

4 2

3 1

2 0

1 0

Chris Martin

Canada

2025-02-01

Perfect Mill-Direct Pricing on API 5L PSL2 Line Pipe — Repeat Buyer

This is our fourth order with this manufacturer — 60 tons of API 5L PSL2 seamless line pipe, OD 273.1mm (10 inch), wall 12.7mm, Grade X52, for a gas gathering system in Saskatchewan. Mill test reports showed Charpy impact values at -20°C well above the PSL2 minimum, which was critical for our cold-climate application. All pipes were clearly heat-numbered and traceable to the MTRs. Custom lengths of 11.8m were cut precisely with tolerances within ±5mm. Compared to sourcing through Canadian distributors, the mill-direct pricing saved us approximately 14% on this order. Export packaging held up perfectly through the Vancouver port transit. Consistent quality across all four orders — this supplier is now our preferred source for API line pipe.

Robert Brown

United Kingdom

2025-02-25

Acceptable Quality Carbon Steel Pipes — Documentation Issue Resolved

Ordered 22 tons of ASTM A106 Grade B seamless pipes, OD 114.3mm, SCH 80, for a power station steam condensate system. Pipe dimensions and mechanical properties were within spec — tensile strength confirmed at 430 MPa on the mill certificate. However, the initial shipment was missing the NDE ultrasonic examination records required under our project QA plan. Raised the issue with the sales team; they provided the complete ASTM E213 UT reports within 48 hours via email. The delay caused a minor hold on our site inspection. Quality of the pipes themselves was not in question, and our welding team reported clean bevel preparation. Supplier was responsive in resolving the documentation gap. Would consider a repeat order if documentation process is tightened.

Carlos Silva

Brazil

2025-03-23

Reliable SSAW Carbon Steel Pipes for Water Transmission

Sourced 120 tons of SSAW carbon steel pipes, OD 711mm (28 inch), wall thickness 9.5mm, for a municipal water transmission project in Recife. Pipes were supplied with external 3LPE coating and internal epoxy lining as specified. Coating adhesion tests performed by our QC team on-site passed without issue. Documentation included hydrostatic test certificates and NDE reports per the order requirements. Delivery was 38 days — slightly beyond the 35-day estimate due to coating scheduling, but the supplier communicated the delay proactively and adjusted the shipping schedule. Price was 11% lower than the Brazilian domestic mill quote for the same specification. Will consider for future infrastructure tenders.