What are the customization options for dimensions?

Outer diameter ranges from 3.0mm to 2500mm, thickness from 1.0mm to 150mm, and length from 1m to 12m based on customer requirements.

How long does delivery take?

We complete the delivery within 5-10 days after your payment.

What payment methods do you accept?

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

Building Material Hot Cold Rolled ASTM A53 Seamless Alloy Galvanized Hollow Section Square Rectangular Round Mechanical Structural Carbon Seamless Steel Pipe

Name: Building Material Hot Cold Rolled ASTM A53 Seamless Alloy Galvanized Hollow Section Square Rectangular Round Mechanical Structural Carbon Seamless Steel Pipe
Brand: Shandong Tongmao Special Steel Co., Ltd.
SKU: 1947835555

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.

020 1045 ST37 ST52 C45 A106B 15CrMo

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

Comprehensive Warranty: Covers 3 years of mechanical defects with dedicated after-sales support.

Customizable Dimensions: Outer diameter 3.0-2500mm, thickness 1.0-150mm, and length 1-12m tailored to needs.

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

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

OEM/ODM Services: Full customization available from designs with professional engineering support.

Extensive Material Options: Carbon steel with black, bare, varnish, or galvanized surface treatments.

Global Shipping Support: Sea, air, land transportation, and express delivery methods available.

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: ≤5.48h

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 warranty period?

We provide a 3-year warranty for all our mechanical equipment.