What certifications do your products hold?

Our products are certified by ABS, RoHS, UL, AISI, JIS, ASTM, DIN, and GB standards.

What payment terms do you accept?

We accept T/T, L/C, Western Union, PayPal, D/P, and small-amount payments.

What after-sales services are provided?

We provide bending, welding, cutting, and decoiling services as part of our after-sales support.

Q235B Hollow Steel Square&Rectangular Welded Steel Pipes and Tubes

Name: Q235B Hollow Steel Square&Rectangular Welded Steel Pipes and Tubes
Brand: Zhejiang Zhong Ding Iron and Steel Co., Ltd.
SKU: 1966313985

Zhejiang, ChinaZhejiang Zhong Ding Iron and Steel Co., Ltd.

US$680.00

1-49 Tons

US$640.00

50-99 Tons

US$620.00

100+ Tons

Product profile

After-sales Service

Bending,Welding,Cutting,Decoiling

Standard

AISI, JIS, ASTM, DIN, GB

Certification

ABS, RoHS

Technique

Cold Drawn

Wall Thickness

Thick

Surface Treatment

Black Varnished, Bare, PE Coated or as Required

Alloy

Non-alloy

Application

Fluid Pipe, Boiler Pipe, Drill Pipe, Hydraulic Pip

Transport Package

Standard Packing

Trademark

zhongding

Origin

China

Production Capacity

2000tonnes Per Week

Key features

Customizable Sizes: Standard sizes 15*20mm to 300*200mm with other sizes available upon customization request.

Multiple Surface Treatments: Options include black painted, oil anti-rust, galvanized, FBE, 3PE, PE, or as customer request.

Wide Material Selection: Available in Q195, Q235, Q345, ST37, ST52, A36, 15CrMo, 20#, A106, A53, and more.

Versatile Welding Technologies: Manufactured using ERW, EFW, and DSAW techniques for high-quality joints.

Fast Delivery Time: 5-10 days for in-stock items and 10-15 days for out-of-stock items.

Comprehensive After-Sales Service: Includes bending, welding, cutting, and decoiling services.

Multiple Certifications: Certified by ABS, RoHS, UL, AISI, JIS, ASTM, DIN, and GB standards.

Customizable Applications: Suitable for fluid pipes, boiler pipes, drill pipes, hydraulic pipes, and steel structures.

Company profile

Fast DeliveryLow MOQCustomization from SamplesR&D Capabilities

Zhejiang Zhong Ding Iron and Steel Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Trading Company CertifiedCustomization Options: Customization from Samples CertifiedExport Year: 4 Years CertifiedNearest Port: Ningbo PortAverage Response Time: ≤5.40h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryZhejiang Zhong Ding Iron and Steel Co., Ltd. is a China-based limited trading company established in 2020 with 14 employees and a Ningbo, Zhejiang location. The supplier reports large-scale steel production integration, including 8 hot-rolling piercing lines and 30 cold-rolling units, with a stated production range beginning at 10 mm and extending to 219 mm. It has exported for four years, with exports representing 71%–90% of total sales, and has attended the Dubai Fair. The supplier reports new-product activity and sample-based customization, but has only one R&D engineer and does not provide ODM, well-known-brand OEM, or SDK services. No overseas agents, branches, warehouse, showroom, or in-stock service capability are reported. Financial records are referenced for 2022–2024, but no financial results are provided. Evidence is insufficient to confirm certifications, documented quality assurance, raw-material traceability, or customer cases.

Supplier typeThe supplier is identified as a trading company and limited company, while its description states that it integrates production, sales, and trade. Its registered location is Ningbo, Zhejiang, China, and its business scope includes technology import and export, import and export agency, and goods import and export subject to applicable approvals.

R&D capabilityThe supplier reports one R&D engineer and new products launched during the past year. It does not provide ODM services, well-known-brand OEM services, or SDK availability, indicating some product-development activity but limited documented breadth of innovation services.

Production capacityThe company description reports 8 hot-rolling piercing production lines and 30 cold-rolling units, with a stated production range of 10 mm to 219 mm. However, the supplier also reports no in-stock capacity, while outsourcing procedures and manufacturing-capacity contracts are unknown; the stated production infrastructure nevertheless provides explicit evidence of production capability.

Customization capabilityThe supplier explicitly offers customization from samples and reports product R&D activity. At the same time, it does not offer ODM services, so the evidence supports sample-based customization but not broader independent design or ODM capability.

Product Q&A

Q:What sizes are available for these steel pipes?

Standard sizes range from 15*20mm to 300*200mm, and other sizes can be customized according to customer requirements.

Q:What surface treatments do you offer?

We offer black painted, oil anti-rust, galvanized, FBE, 3PE, PE, or treatments as requested by the customer.

Q:What are the delivery times for stock and non-stock items?

Delivery takes 5-10 days if goods are in stock, and 10-15 days if goods are not in stock.

Q:Can you customize the pipes based on samples?

Yes, we provide customization options from samples for various applications and specifications.

Q:What materials are used for these pipes?

Materials include Q195, Q235, Q345, ST37, ST52, A36, 15CrMo, 20#, A106, A53, and other grades as needed.

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Q235B Hollow Steel Square&Rectangular Welded Steel Pipes and Tubes