Contact Platform Support
Help CenterCarbon Steel Seamless Pipe for Structural Support in Construction, ASTM A53 Gr.B, 4 Inch Diameter, 6m Length
Product Spotlights
Related Products
-
Carbon Steel Seamless Pipe Used in Oil Refinery Piping Systems, ASTM A106 Gr.B, NPS 8 Sch 40NegotiableMOQ: 1 Ton -
DIN 2448 St37.0 Carbon Steel Seamless Pipe, OD 88.9mm, WT 5.5mm, Plain Ends for Oil and GasNegotiableMOQ: 1 Ton
-
Carbon Steel Seamless Pipe With Mill Test Report, 2 Inch Sch 40, Direct Factory Price, 12 Months WarrantyNegotiableMOQ: 1 Ton
-
Carbon Steel Seamless Pipe, ASTM A106 Gr.B, Standard Compliant, Free Cutting and Threading ServiceNegotiableMOQ: 1 Ton
-
ASTM A53 Gr.B Carbon Steel Seamless Pipe, 3/4 Inch, Sch 80, Black Coated, Threaded EndsNegotiableMOQ: 1 Ton
Hemaokang Steel (Shandong) Co., Ltd. is proud to present our Carbon Steel Seamless Pipe for Structural Support in Construction, manufactured in strict compliance with ASTM A53 Gr.B standards. As a newly established (2025) yet rapidly growing enterprise with an annual export value exceeding US$50 million, we combine modern production capabilities with rigorous quality control to deliver pipes that meet the demanding requirements of construction projects worldwide. This 4-inch diameter, 6-meter length seamless pipe offers exceptional strength, durability, and reliability for load-bearing applications.
Our seamless manufacturing process eliminates weld seams, resulting in a homogeneous structure that provides superior pressure resistance and uniformity. The ASTM A53 Gr.B specification ensures a minimum yield strength of 35,000 psi and tensile strength of 60,000 psi, making it an ideal choice for scaffolding, piling, frame structures, and other structural supports. Each pipe undergoes hydraulic testing and dimensional inspection to guarantee performance under stress.
Key Features & Advantages
- Seamless Construction – No welded joints means higher reliability and reduced risk of failure under dynamic loads.
- ASTM A53 Gr.B Certified – Meets international standards for structural quality steel pipes.
- Optimal Dimensions – 4-inch OD (101.6 mm) and 6-meter length standard, with custom lengths available upon request.
- Excellent Weldability – Suitable for field welding or connection to existing structures.
- Versatile Surface Options – Available in black (as-rolled) or oil-dipped finish to resist corrosion during transport and storage.
- Cost-Effective – Competitive pricing without compromising on quality, backed by our ISO9001 quality management system.
Technical Specifications (Typical for Schedule 40)
| Parameter | Value |
|---|---|
| Outside Diameter | 4.500 inches (114.3 mm) |
| Wall Thickness (Schedule 40) | 0.237 inches (6.02 mm) |
| Weight per foot (Schedule 40) | 10.79 lbs/ft (16.07 kg/m) |
| Yield Strength (min) | 35,000 psi (241 MPa) |
| Tensile Strength (min) | 60,000 psi (414 MPa) |
| Elongation (in 2 in.) | 20% min |
| End Finish | Plain End (Beveled optional) |
| Testing | Hydrostatic, Flattening, Bend Test |
These specifications ensure our pipe can withstand the rigorous demands of construction structural support. The seamless nature guarantees uniform wall thickness and consistent mechanical properties across the entire length. For projects requiring non-standard schedules or lengths, we offer customization services to match your engineering blueprints.
Customer Benefits
- Enhanced Structural Integrity – Seamless pipes provide 20-30% higher burst strength compared to welded pipes of equivalent grade.
- Simplified Installation – Precise dimensions reduce on-site adjustments, saving labor time and costs.
- Long Service Life – Proper surface treatment and material quality resist corrosion and fatigue in construction environments.
- Global Compliance – Our products meet not only ASTM A53 but also common international standards like GB/T 8163, EN 10210, and more, ensuring acceptance in diverse markets.
Backed by ISO9001:2015 certification and a dedicated team of 51-100 employees, Hemaokang Steel ensures every pipe is traceable from raw material to final dispatch. With annual exports exceeding US$50 million and shipments reaching North America, South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East, we have established a reliable supply chain that delivers on time. Our Liaocheng, Shandong facility is strategically located for efficient logistics to the port of Qingdao. We invite you to experience the combination of quality, value, and service that makes Hemaokang Steel your trusted partner for construction steel products. Contact us today for competitive quotes, sample requests, or technical support.
Frequently Asked Questions (FAQ)
-
Q: What are the delivery times for these pipes?
A: Our standard lead time is 15-30 days depending on the quantity and wall thickness options. For urgent orders, we can expedite production to as short as 10 days. Please consult our sales team for accurate scheduling. -
Q: Can you provide pipes with custom lengths or special wall thicknesses?
A: Yes, we offer customization. While 6 meters is the standard length, we can cut to sizes ranging from 1m to 12m. Wall thickness options include Schedule 10, 40, 80, and beyond. Simply specify your requirements when placing an order. -
Q: What surface treatment is applied to prevent rust?
A: Our standard black pipe is supplied as-rolled with a thin oxide layer. For additional protection, we can apply oil-dipping, varnish coating, or even hot-dip galvanization upon request. For structural support applications, oil-dipped finish is commonly recommended. -
Q: How do you ensure the quality of each batch?
A: We follow a strict quality control process under ISO9001. Each pipe undergoes hydrostatic testing, flattening tests, and dimensional checks. A mill test certificate (MTC) is provided with every shipment, detailing chemical composition and mechanical properties. -
Q: Is this pipe suitable for underground structural applications?
A: Yes, it can be used for underground is it is properly protected from corrosive soil conditions. We recommend additional corrosion protection such as epoxy coating or wrapping. Our technical team can advise on suitable coatings based on your project's soil analysis. -
Q: What are the packaging options for export?
A: For sea freight, we provide standard seaworthy packaging: either bare bundles with steel strapping and waterproof wrapping, or containerized loading for small quantities. Custom packaging (e.g., wooden crates, end caps) is available at an additional cost. -
Q: Can you supply pipes with beveled ends for welding?
A: Yes, beveled ends (30°-35° bevel) are available as an option. Plain end is standard. Beveling can be done for pipes with wall thickness ≥ 3mm. Please mention this requirement in your inquiry. -
Q: Do you offer samples before bulk order?
A: Certainly. We can provide small samples (e.g., a 1-foot piece) for evaluation. The sample cost and shipping charges will apply, but these can be deducted from your first bulk order. Contact us to request a sample with your specifications.
Send Inquiry to This Supplier
You May Also Like
-
ASTM A106 Gr.B Carbon Steel Seamless Pipe, 2 Inch Schedule 40, 6m Length for Industrial PipingNegotiableMOQ: 1 Ton
-
Seamless Steel Tube for Structural Applications ASTM A500 Grade B 4 Inch x 0.25 Inch WallNegotiableMOQ: 1 Ton
-
Carbon Steel Seamless Pipes ASTM A333 Gr.6 for Low Temperature Service 3-12mNegotiableMOQ: 1 Ton
-
Carbon Steel Tube ASTM A179 Seamless Heat Exchanger Grade 0.5-2 InchNegotiableMOQ: 1 Ton
-
Carbon Seamless Steel Pipe for Boiler Superheater ASTM A192 10mm-76mm ODNegotiableMOQ: 1 Ton
-
Carbon Seamless Steel Pipe ASTM A106 Gr.B Sch40 6m Length for Oil & Gas PipelineNegotiableMOQ: 1 Ton
-
Seamless Carbon Steel Pipes EN 10216-2 P235GH for Pressure Vessels 2-12m LengthNegotiableMOQ: 1 Ton
-
Carbon Steel Seamless Pipe With Mill Test Report 1 Year Warranty ASTM A106NegotiableMOQ: 1 Ton
-
Seamless Steel Pipe API 5L X42 PSL1 8 Inch Schedule 40 for Water TransmissionNegotiableMOQ: 1 Ton
-
Pharmaceutical Aluminum Foil With Mill Test Report ASTM B209 CompliantNegotiableMOQ: 1 Ton
