Can you customize the product specifications?

Yes, we offer customization for Outer Diameter, Thickness, Length, and Standard according to customer requirements.

What is the warranty period?

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

High-Quality ASTM Q345 Spiral Steel Pipe for Industrial Use

Name: High-Quality ASTM Q345 Spiral Steel Pipe for Industrial Use
Brand: Shandong Tongmao Special Steel Co., Ltd.
SKU: 1969851785

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.

Q345

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

Customizable Dimensions: OD 3.0-2500mm, Thickness 1.0-150mm, Length 6-12m or as required.

Fast Delivery: Complete delivery within 5-10 days after payment with abundant stock.

3-Year Warranty: Comprehensive 3-year warranty coverage for seamless steel pipes.

Multiple Standards: Complies with ASTM, AISI, JIS, EN, DIN, and GB standards.

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

OEM/ODM Service: Customization from designs available with professional manufacturing.

Wide Application: Suitable for pipeline transport, oil/gas drilling, construction, and more.

Quality Assurance: ISO9001 certified with strict quality testing before delivery.

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: ≤5.99h

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.