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A36 A500 Square Welded ERW Black Iron Rectangular Steel Tube
US$550.00-900.00
5 Tons
Product profile
Customization
AvailableAfter-sales Service
YesWarranty
YesModel NO.
Welded ERW Black Iron Rectangular Steel TubeType
WeldedTechnique
Hot RolledMaterial
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
RectangularName
Welded ERW Black Iron Rectangular Steel TubeSteel Grade
A500,,Ss400, St37,A36, S235jr....Thickness
0.5-20mmWidth
20X40--400X600mmLength
3m,6m,9m,12m or as Your RequireProcess
Hot Rolled,Cold Drawing...Surface
Black,Galvanized,Oiled,Pickling...Applications
Beams, Bridges, Ship,Tower,Building...Tolerance
According to StandardMOQ
5mtPackage
Standard Export PackagePayment
L/C T/TPrice Term
Fob,CIF,CFR,CPT,DDP,DDU...Loading
20/40FTLoading Quantity
25~27tons/ContainerTransport Package
Standard Sea Worthy PackingSpecification
20x40--400x600mmTrademark
Heng SteelOrigin
ChinaHS Code
7306610000Production Capacity
30000 Ton / MonthKey features
Extensive Customization Options: Customizable steel grades, thickness (0.5-20mm), dimensions, and surface treatments to meet specific project needs.
Wide Range of Applications: Suitable for pipeline transport, construction, machinery, automotive, shipbuilding, and chemical industries.
Comprehensive After-Sales Support: Professional manufacturer offering warranty and dedicated after-sales service for all products.
Global Export Experience: 12 years of export experience with products sold in over 100 countries across multiple continents.
Flexible Delivery Schedule: Standard delivery within 20 days, with options for custom lengths and expedited peak season shipping.
Multiple Surface Treatments: Available in Black, Galvanized, Oiled, or Pickled finishes to prevent rust and enhance durability.
Diverse Steel Grade Selection: Offers A500, Ss400, St37, A36, S235jr, Q195, Q235, and Q345 grades to match international standards.
Secure Packaging Solutions: Options include bulk shipping, steel strip packing, or woven cloth packaging based on customer requirements.
Company profile

Business Type: Manufacturer/Factory, Group CorporationExport Year: 2011-10-17Nearest Port: Qingdao, Tianjin, ShanghaiAverage Response Time: ≤4.45hTerms of Payment: LC, T/T, PayPal, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, DDP, CIP
AI-Powered supplier vetting
SummaryShandong Heng Steel Group Co., Ltd. is identified as a China-based manufacturer/factory and group corporation producing galvanized and other steel products. The supplier reports more than 10 production lines, four factories, 6–10 quality-control staff, and 21–30 years of combined R&D engineer experience. It lists numerous management and quality-related certifications and states that exports account for 90% of total sales. Service descriptions mention stock and application information, logistics tracking, quality inspections, sample support, and transportation safety procedures. However, the provided information does not establish contract status, inventory capacity, overseas facilities or agents, ODM/OEM services, SDK or design capability, raw-material traceability, customer cases, or detailed production volumes. Financial information is not assessed.
Supplier typeThe supplier is explicitly identified as a Manufacturer/Factory and Group Corporation, operating as Shandong Heng Steel Group Co., Ltd. in Shandong, China. The audit record also identifies galvanized coil and steel coil as its primary products, supporting its classification as a steel manufacturing supplier.
CertificationsThe supplier lists multiple management, quality, environmental, occupational-safety, and industry certifications, including ISO 9001, ISO 14001, OHSAS/OHSMS 18001, ASME, and TS 16949. A TUV Rheinland audit is recorded with a validity period from September 18, 2025 to September 17, 2026, although the supplied audit result code is not explained.
After-Sales capabilityThe supplier describes after-sales support involving price and product suggestions, transport-status updates until pickup, stockpile and application information, and logistics tracking. It also reports sample support and quality-control procedures, but the specific after-sales service scope, response standards, and overseas service capabilities remain unverified.
Production capacityProduction resources are supported by the stated four factories, more than 10 production lines, 6–10 quality-control staff, and product categories covering galvanized coil, galvanized roofing sheet, wear-resistant plate, weather-resistant plate, and boiler/pressure-vessel plate. Annual productivity quantities are not provided, while the supplier reports that exports represent 90% of total sales.
Product Q&A
Q:What is the minimum order quantity?
A:
The minimum order quantity is 5 metric tons.
Q:What are the available dimensions for the tubes?
A:
Width ranges from 20x40mm to 400x600mm, and wall thickness is available from 0.5mm to 20mm.
Q:How long does it take to deliver the products?
A:
Delivery time is typically within 20 days, or as per your specific request.
Q:What payment terms do you accept?
A:
We accept T/T or L/C at sight, as well as L/C, PayPal, and Western Union.
Q:Can the steel tubes be customized?
A:
Yes, we offer customization for steel grade, thickness, width, length, and surface treatment.
Send Inquiry
*To:
Shandong Heng Steel Group Co., Ltd.
Shandong Heng Steel Group Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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