Contact Platform Support
Help CenterCarbon Steel Pipe for Steel Structure Welding ASTM A500 Gr.A Rectangular 80x40mm 12m
Product Spotlights
Related Products
-
Carbon Steel Pipe EN10216-2 P265GH Seamless 114.3mm x 6.3mm 6mNegotiableMOQ: 1 Ton -
ERW Carbon Steel Pipe ASTM A500 Gr.B Square 100x100mm Thick 4mm 12mNegotiableMOQ: 1 Ton
-
Carbon Steel Pipe for Oil and Gas Pipeline API 5L Gr.B Seamless SCH40 6mNegotiableMOQ: 1 Ton
-
ASTM A53 Gr.B ERW Carbon Steel Pipe Schedule 40 OD 1/2-24 Inch 6m LengthNegotiableMOQ: 1 Ton
-
Carbon Steel Pipe ASTM A53 Gr.B ERW With Mill Test Report and 1 Year Warranty 6mNegotiableMOQ: 1 Ton
We are Hemaokang Steel (Shandong) Co., Ltd., a dedicated manufacturer and exporter located in Liaocheng, Shandong, China. Our Carbon Steel Pipe for Steel Structure Welding ASTM A500 Gr.A Rectangular 80x40mm 12m is produced to serve the rigorous demands of modern steel construction. This rectangular pipe offers solid strength, high weldability, and consistent dimensional accuracy, making it a reliable component for frames, trusses, columns, and other load-bearing structures. With our established export experience, we supply high-quality steel products to clients worldwide, ensuring that every shipment meets strict performance expectations.
Product Highlights:
- Material Grade ASTM A500 Gr.A – This specification covers cold-formed welded and seamless carbon steel tubing for structural purposes. Grade A provides good tensile strength and ductility, ideal for general structural applications.
- Rectangular Profile 80mm x 40mm – The rectangular cross-section delivers reliable support for vertical and horizontal loads, allowing efficient force distribution in steel frameworks.
- Full-Length 12m Supply – Longer lengths reduce the number of field splices and minimize welding costs, especially for continuous structural members.
- Weldability – The carbon content and steel chemistry are designed to support smooth welding operations, producing sound joints with minimal defects.
- Consistent Dimensional Tolerances – Our rolling and finishing processes control wall thickness and outer dimensions to meet ASTM A500 requirements.
- Customizable Surface – Options such as black finish, galvanized coating, or other anti-corrosion treatments are available upon request to suit your project environment.
- Efficient Packaging – Pipes are bundled securely for sea freight, protecting surfaces during transit.
Technical Specifications:
| Parameter | Value |
| Standard | ASTM A500 |
| Grade | Gr.A |
| Shape | Rectangular |
| Dimension | 80mm x 40mm |
| Length | 12m (custom cut available) |
| Wall Thickness | Available upon request |
| Surface Treatment | Black, galvanized, or customized |
| Application | Steel structure welding, building frameworks |
We understand that steel structure projects demand reliable materials with predictable performance. Our ASTM A500 Gr.A rectangular carbon steel pipe is manufactured with strict process control, from hot forming to quality inspection. The result is a product that not only meets the required mechanical properties but also provides consistent quality across batches. This makes it suitable for both small-scale fabrication and large-scale industrial construction.
The rectangular 80x40mm profile is a popular choice for architectural and structural members because it offers a balance between weight and strength. When used in welded steel structures, this tube allows for clean joints and smooth integration with other steel members. Its compact cross-section is especially useful for columns, beams, bracing elements, and equipment supports. The 12-meter length ensures that long spans can be achieved with fewer intermediate supports, reducing material waste and labor costs.
Here are more benefits that this carbon steel pipe brings to your project:
- Improved Structural Performance – The rectangular shape provides good bending resistance in both principal directions.
- Better Load-Bearing Capacity – Grade A strength ensures reliable performance for static and dynamic loads.
- Simplified Fabrication – Clean surfaces and precise dimensions allow for efficient cutting, drilling, and welding.
- Cost Effectiveness – Carbon steel offers an economical solution without compromising essential mechanical properties.
- Adaptability – Available in custom lengths and surface finishes to meet project-specific demands.
- Global Supply Reliability – Exported through Qingdao port with proven logistics capability.
Quality Assurance and Certifications:
We are proud to maintain ISO9001 quality management system, which governs our production, inspection, and after-sales processes. From raw material selection to final packaging, every step is monitored by experienced professionals. Our testing procedures include, if required, chemical analysis, mechanical properties testing (tensile strength, yield strength, elongation), and dimensional inspection. Should you require third-party inspection, we can arrange it to provide additional confidence.
Why Choose Our Carbon Steel Pipe?
- We use high-quality steel coils sourced from reputable mills, ensuring traceability and stable chemistry.
- Our production line is capable of producing rectangular tubes with consistent corner radii and wall thickness.
- We offer flexible order quantities, from small trials to full container loads.
- We provide professional documentation including mill test certificates, packing lists, and commercial invoices.
- Our team of 51–100 employees works together to handle orders efficiently and respond promptly to inquiries.
Now we discuss the application scenarios in more detail. This rectangular steel pipe is widely used in welded steel structures, including:
- Industrial buildings and warehouses
- Steel bridges and overpasses
- Transmission towers
- Agricultural equipment
- Heavy machinery frames
- Conveyor systems
- Structural columns and beams
For welding operations, the steel grade offers good weldability and can be welded using standard methods such as SMAW, GMAW, or FCAW. It is recommended to follow appropriate welding procedures and preheat when needed, depending on thickness and environmental conditions. Our technical team can provide guidance if required.
Surface protection is important to ensure long service life. The pipes can be supplied with oiled surface, black painted finish, or hot-dip galvanized coating for enhanced corrosion resistance. For projects exposed to moisture or chemicals, a protective coating is recommended. We invite you to discuss your specific requirements with our sales team.
Regarding dimensional accuracy, ASTM A500 specifies tolerances for outer dimensions and wall thickness. Our rectangular pipes are manufactured using advanced cold-forming technology, which provides precise corners and flat surfaces. This is particularly beneficial for fabricators who rely on exact fit-up and consistent welding gaps.
Environmental sustainability is an increasingly important factor in steel selection. Carbon steel is 100% recyclable, and its long service life contributes to lower lifecycle costs. By choosing our product, you are selecting a durable and sustainable construction material.
In conclusion, the Carbon Steel Pipe for Steel Structure Welding ASTM A500 Gr.A Rectangular 80x40mm 12m is a dependable choice for engineers, fabricators, and contractors who require reliable structural components. Its combination of geometric efficiency, material strength, and economic value makes it suitable for a wide range of projects. Our company's export experience and commitment to quality ensure that your orders are delivered safely and on schedule.
FAQ - Frequently Asked Questions
1. Q: What is the minimum order quantity for this pipe?
A: Our standard MOQ is generally one container load, but for sampling and trial orders, we accept small quantities subject to stock availability. Please contact us for the proper arrangement.
2. Q: Can you supply the pipe in custom lengths other than 12m?
A: Yes, we can cut the pipes to any length based on your drawings or specifications. Custom cutting is available upon request.
3. Q: What surface treatments do you offer?
A: We can supply pipes with black finish, varnished, oiled, or galvanized surface. Customized surface preparation such as painting with specified colors is also possible.
4. Q: Do you provide mill test certificates?
A: Yes, mill test certificates are provided upon request, including chemical composition and mechanical properties that comply with ASTM A500 Gr.A.
5. Q: How do you ensure the quality of your steel pipes?
A: Our factory operates under ISO9001 quality management system. We conduct routine inspections during production and final inspection before loading. Third-party inspection agencies are welcome if required.
6. Q: What is your delivery time?
A: For regular sizes like 80x40mm, delivery time is typically within 2-4 weeks after order confirmation, depending on quantity and specific requirements.
7. Q: Can you provide samples?
A: Yes, small samples can be provided for evaluation. However, the freight cost may be borne by the buyer, which is a common practice.
8. Q: Do you support export documentation?
A: Yes, we can handle full export documentation including packing list, bill of lading, commercial invoice, and any other required documents for customs clearance.
As an ISO9001-certified company with annual export value between US$50 million and US$100 million, Hemaokang Steel (Shandong) Co., Ltd. has built a strong reputation for supplying reliable carbon steel products to global markets. We are based in the steel industry cluster of Liaocheng, Shandong, and ship through the nearby Port of Qingdao, enabling efficient delivery to North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe, Central America, Northern Europe, Southern Europe, South Asia, and the domestic market. With 51–100 dedicated employees and a customer-focused approach, we are ready to support your project with high-quality steel pipes, competitive pricing, and reliable service. Contact us today to request a quote or place an order — we look forward to building a long-term partnership with you.
Send Inquiry to This Supplier
You May Also Like
-
ASTM A53 Gr.B ERW Carbon Steel Pipe, 8 Inch SCH40, Hydrostatic Tested, Mill Test Report ProvidedNegotiableMOQ: 1 Ton
-
Factory Direct Carbon Steel Pipe With 1 Year Warranty, Free Cutting Service, Mill Test Report for Each BatchNegotiableMOQ: 1 Ton
-
Carbon Steel Pipe Supplier With Complete Inspection Equipment, 24-Hour Technical Support, Custom Length AcceptanceNegotiableMOQ: 1 Ton
-
Q355B Welded Carbon Steel Pipe, 508mm OD, 16mm Wall Thickness, Submerged Arc Welding for Structural UseNegotiableMOQ: 1 Ton
-
Carbon Steel Pipe for Oil and Gas Gathering Lines, API 5L X60 PSL2 Sour Service, SCC Test PassedNegotiableMOQ: 1 Ton
-
Cold Drawn Seamless Carbon Steel Pipe, 1045 Grade, Precision Tolerance, Annealed Condition for MachiningNegotiableMOQ: 1 Ton
-
Seamless Carbon Steel Pipe for Machinery Shafts and Hydraulic Cylinders, 4140/1045 Steel Tube, Honed IDNegotiableMOQ: 1 Ton
-
A53 Gr.B Galvanized Carbon Steel Pipe SCH40 Hot Rolled Round Tube 1/2"-12" OD For ConstructionNegotiableMOQ: 1 Ton
-
ASTM A53 Welded Carbon Steel Pipe Schedule 40 48 Inch DN1200 9.5mm Wall Thickness SturdyNegotiableMOQ: 1 Ton
-
Black Coated Carbon Steel Pipe A106 Gr.B SCH40 SCH80 SCH160 Ends Beveled For Piping SystemsNegotiableMOQ: 1 Ton
