Which ports do you ship from?

Mainly from Tianjin Port, Jingtang Port, Qingdao Port, or other Chinese ports as requested. We can also arrange door-to-door delivery via sea/air/land.

What shipping terms do you offer?

We accept EXW, FOB, CFR, CIF, DAP, and DDP. Our logistics team will optimize the shipping plan based on your location to minimize cost and transit time (sea freight: 20-45 days to major global ports).

How is the pipe packaged?

Standard packaging: Steel bundles (with waterproof paper + steel strips) . Custom packaging (anti-rust oil, plastic film, labeling) is available for special requirements.

Can you provide technical support?

Yes, our engineering team offers technical consultation on pipe selection, installation, and maintenance. We can also provide installation guidelines and CAD drawings upon request.

How to track my order?

After shipment, we will send the B/L, commercial invoice, packing list, and tracking number via email. You can track the shipment status through the logistics company's official website or contact our sales team for real-time updates.

Q235/Q355 Galvanized Square Tube Rectangular Pipe with Standard ASTM A500

Name: Q235/Q355 Galvanized Square Tube Rectangular Pipe with Standard ASTM A500
Brand: Handan Zhengda Steel Pipe Group Co., Ltd
SKU: 2286332325

Hebei, ChinaHandan Zhengda Steel Pipe Group Co., Ltd

US$490.00-740.00

5 Tons

Sample price:US$5.00/piece.Request sample

Product profile

Customization

Available

Type

Welded

Technique

ERW

Material

Carbon Steel

Surface Treatment

Galvanized

Usage

Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose

Section Shape

Square

Diameter

25*25-300*300

Wall Thickness

1.50-10.00mm

Trademark

Tianhong

Origin

China

Key features

Comprehensive Customization: Supports custom outer diameter (15-2000mm), wall thickness (1.5-20mm), length, and material grades.

Strict Quality Control: Includes raw material inspection, process monitoring, and final hydrostatic/non-destructive testing with full reports.

Flexible MOQ Options: 10 tons for standard specs, 20 tons for custom; small trial orders (5-10 tons) negotiable for new clients.

Free Sample Availability: Provides 1-2 free samples (under 1kg) for quality verification with a 3-5 day lead time.

Multiple Payment Terms: Accepts T/T (30% advance), L/C at sight, Western Union, D/P, and D/A for long-term partners.

Fast Production Lead Time: 15-20 days for standard orders, 20-30 days for custom, and 30-45 days for bulk orders over 1000 tons.

Global Shipping Network: Ships from Tianjin, Jingtang, Qingdao, or other ports with EXW, FOB, CIF, DAP, and DDP terms.

Company profile

High Repeat Buyers ChoiceYears of Export ExperienceExperienced TeamSelf-branded

Handan Zhengda Steel Pipe Group Co., Ltd

Hebei, China

Business Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 15 Years CertifiedNearest Port: Tianjin PortAverage Response Time: ≤10.46h

AI-Powered supplier vetting

SummaryThe supplier is presented as a professional technical manufacturer with extensive customization, 3D design, ODM, and OEM capabilities. It reports more than 10 production lines, annual steel-pipe capacity exceeding 10 million tons, inventory capability, valid manufacturing contracts, and over 15 years of exporting experience. Quality and management credentials include ISO 9001, ISO 45001, ISO 14001, ISO 50001, CE, and other certifications, supported by documented inspection, corrective-action, complaint-handling, and supplier-assessment procedures. Service coverage is limited internationally: it has no overseas warehouse, showroom, agent, branch, or overseas-service country coverage, although it has attended the Canton Fair and is near Tianjin Port. No financial information is provided. Innovation evidence is mixed because the supplier offers ODM but reported no new products in the past year. Customer evidence includes repeat-buyer preference of 80%–100%, but no Fortune 500 cooperation.

Supplier typeThe supplier identifies as a professional technical supplier and describes itself as a large steel-pipe manufacturer with Tianhong and Jili brands. Its stated product focus is steel pipes, including hot-dip galvanized square and rectangular pipes.

CertificationsThe supplier reports ISO 9001, ISO 45001, ISO 14001, ISO 50001, CE, and other certifications, including ISO 9001:2015 and ISO 45001:2018. These records provide explicit evidence of quality, occupational-safety, environmental, energy, and product-compliance certifications.

Production capacityProduction evidence is strong: the supplier reports annual steel-pipe capacity exceeding 10 million tons, more than 10 production lines, inventory capability, valid contracts with associated subcontractors, and one-month average lead times in both peak and off-season. It also reports 15 years of exporting goods and documented finished-product inspection instructions.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, flexible customization, 3D software design, ODM, and OEM services for popular brands. This indicates broad ability to adapt products to customer specifications.

Client casesThe supplier reports OEM service for well-known brands and an 80%–100% repeat-buyer preference, which supports customer retention and commercial experience. However, it reports no cooperation with Fortune 500 companies and provides no named customer cases, so the breadth and verifiability of customer references remain limited.

Product Q&A

Q:What types of steel pipes do you supply?

We mainly provide welded steel pipes (ERW, LSAW, SSAW), seamless steel pipes, galvanized steel pipes, plastic lined steel pipe3PE spiral anti-corrosive pipe and coated steel pipes (internal/external epoxy, PE, PP). Applications cover construction, water supply, oil & gas, fire protection, and industrial fluid transmission.

Q:How do you ensure product quality?

We implement strict quality control from raw material inspection to production process monitoring (welding, heat treatment, coating) and final inspections (hydrostatic test, non-destructive testing, dimensional check). A full quality report is provided with each shipment.

Q:What is the minimum order quantity (MOQ)?

MOQ is 10 tons for standard specifications; for customized products, MOQ is 20 tons. Small trial orders (5-10 tons) are negotiable for new clients.

Q:Do you offer sample testing?

Yes, free samples (1-2 pieces, within 1kg) are available for quality verification. Sample lead time is 3-5 working days.

Q:What payment terms do you accept?

We support T/T (30% advance payment, 70% against B/L copy), L/C at sight, and Western Union for small orders. Other terms (D/P, D/A) can be discussed based on long-term cooperation.

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Q235/Q355 Galvanized Square Tube Rectangular Pipe with Standard ASTM A500