What payment methods do you accept?

We support L / C, T/ T, Western Union, MoneyGram and other payment methods.

Do you offer customization services?

Yes, we offer customization from designs including OD, thickness, length, and surface treatment.

What is the warranty period?

We provide a 3-year warranty for our seamless carbon steel pipes.

China Large Stock Seamless Welded Carbon Steel Pipe

Name: China Large Stock Seamless Welded Carbon Steel Pipe
Brand: Shandong Tongmao Special Steel Co., Ltd.
SKU: 1939412502

Shandong, ChinaShandong Tongmao Special Steel Co., Ltd.

US$750.00

5-9 Tons

US$730.00

10-19 Tons

US$700.00

20+ Tons

Sample price:US$1.00/kg.Request sample

Product profile

Customization

Available

After-sales Service

12 Months

Warranty

3 Years

Model NO.

Q235

Type

Seamless

Technique

Hot Rolled

Material

Carbon Steel

Surface Treatment

Black

Usage

Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Machinery Industry, Chemical Industry, Mining, Construction & Decoration

Section Shape

Round

Thickness

1.0-150mm (Sch10s-Xxs)

Length

6m,9m,12m, 4-12m or as Required

Od

3.0mm - 2500mm (1/8" - 100")

Standard

ASTM / AISI / JIS / En / DIN / GB

Transport Package

Bundled Wooden Pallets

Specification

6-2000mm or customizable

Trademark

tongmao

Origin

China

HS Code

73051900

Production Capacity

5000000tons

Key features

Seamless Carbon Steel Pipe: Hot rolled seamless pipe available in black, bare, or galvanized finishes.

Wide Customization Range: OD 3.0-2500mm, Thickness 1.0-150mm, Length 1-12m or as required.

Fast Delivery Cycle: Complete delivery within 5-10 days after payment confirmation.

Comprehensive Warranty: 3-year warranty coverage for all mechanical defects.

Flexible Payment Terms: Supports L/C, T/T, Western Union, and MoneyGram.

OEM and ODM Services: Customization available from client designs and specifications.

Global Shipping Options: Supports sea, air, land transport, and express delivery methods.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceManagement Certification

Shandong Tongmao Special Steel Co., Ltd.

Shandong, China

Business Type: Manufacturer/Factory, Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Designs CertifiedExport Year: 10 years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤5.50h

AI-Powered supplier vetting

SummaryThe supplier is a limited-company trading company with eight employees and a product scope covering copper, aluminum, steel, brass, and stainless-steel products. It has self-operated import/export rights, eight years of export experience, and exports account for 71%–90% of total sales. Production information states annual capacity of 500,000 tons for steel pipe and 10,000 tons for copper pipe, with peak- and off-season lead times both within 15 working days. However, the supplier reports no overseas showrooms, agents, branches, or offline trade-show participation, and has no written complaint-handling, corrective-action, or supplier-service assessment procedures. Quality controls include quality assurance, but finished products are randomly inspected and checked by packing staff, with one quality inspector and no raw-material traceability. Innovation and formal R&D capabilities are limited: no new products were launched in the previous year, and no 3D design, ODM, SDK, or popular-brand OEM services are...

After-Sales capabilityThe supplier has no overseas showroom, overseas agent or branch, or offline trade-show participation. It also has no written corrective-and-preventive-action procedures, complaint-handling procedures, or effective supplier-service assessment records, although it accepts multiple quotation and payment terms and reports lead times within 15 working days.

R&D capabilityThe supplier reports no new products in the previous year and does not provide 3D software design, ODM, SDK, or popular-brand OEM services. Its stated R&D-related service is customization from samples, indicating limited innovation capability rather than a documented product-development program.

Production capacityThe supplier provides stated annual productivity of 500,000 tons for steel pipe and 10,000 tons for copper pipe, with peak- and off-season lead times both within 15 working days. It has export experience of eight years, self-operated import/export rights, and export sales of 71%–90%; however, quality inspection is limited to random inspection, packing-staff checks, one inspector, and no raw-material traceability.

Customization capabilityCustomization from samples is explicitly available in both the R&D/design-related and product-capability information. No broader 3D, ODM, SDK, or formal product-development capability is stated, so the confirmed capability is sample-based customization.

Product Q&A

Q:Are you a factory or trading company?

We are manufacturer, sincerely welcome you visit our factory.

Q:Can you guarantee your galvanized steel coil quality?

Best quality is our principle all the time. We have 2 times quality test before delivery.

Q:What is your MOQ?

We welcome your trial order MOQ 25 T to be stuffed in 1*20GP. Large quantity can reduce your cost .

Q:What is your main market?

Galvanized steel coils are mainly exported to Afirca ,Southeast Asia, the Middle East,Central Asia Europe, North & South America and other countries and regions.

Q:What is the delivery cycle?

Complete the delivery within 5-10 days after your payment.