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Premium Black Round Steel Tubes for Industrial Applications
US$490.00-740.00
2 Tons
Sample price:US$5.00/piece.Request sample
Product profile
Customization
AvailableType
WeldedTechnique
ERWMaterial
Carbon SteelSurface Treatment
BlackUsage
Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special PurposeSection Shape
SquareDiameter
25*25-300*300Wall Thickness
1.50-10.00mmLegth
CustomizedTrademark
TianhongOrigin
ChinaKey features
Comprehensive Customization: Customizable diameter (25*25-300*300), wall thickness (1.50-10.00mm), and length.
Multi-Industry Applications: Suitable for pipeline transport, boiler, automotive, oil/gas, food, machinery, and construction.
High Production Capacity: Annual capacity exceeds 10 million tons with four production bases across China.
Flexible MOQ Options: 10 tons for standard specs, 20 tons for custom, with negotiable trial orders for new clients.
Fast Sample Delivery: Free samples (1-2 pieces, <1kg) available with 3-5 working days lead time.
Strict Quality Control: Includes raw material inspection, process monitoring, and final hydrostatic/non-destructive testing.
Global Shipping Network: Ships from major Chinese ports with EXW, FOB, CFR, CIF, DAP, and DDP terms.
Company profile
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: ≤11.93h
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?
A:
We mainly provide welded steel pipes (ERW, LSAW, SSAW), seamless steel pipes, galvanized steel pipes, plastic lined steel pipe 3PE 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?
A:
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)?
A:
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?
A:
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?
A:
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.
Send Inquiry
*To:
Handan Zhengda Steel Pipe Group Co., Ltd
Handan Zhengda Steel Pipe Group Co., Ltd*Content:
Supplier replies will be sent to your registered email
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