Company website
Office website:https://khsteel.net/
Alibaba website:https://lckehuan.en.alibaba.com/
Product parameters rectangular carbon hollow cross-section pipe
MATERIAL GRADE | Q195 = S195 / A53 Grade A Q235 = S235 / A53 Grade B / A500 Grade A / STK400 / SS400 / ST42.2 Q355 = S355JR / A500 Grade B Grade C |
STANDARD | ASTM A500 Gr.A / B/ C |
PIPE SURFACE | Galvanized, black painted, or anti-rust oiled |
PRODUCT NAME | Rectangular carbon hollow cross-section pipe |
CERTIFICATES | ISO 9001 / BSI/ UL / FM |
TRADE TERMS | FOB/ CFR/ CIF/ EXW/ FCA |
PAYMENT TERMS | 30%&70% T/T ; 100% LC AT SIGHT (others can be negotiated) |
DELIVERY TIME | 30-45 DAYS AFTER RECEIVE DEPOSIT OR LC |
PRODUCT | Rectangular carbon hollow cross-section pipe |
HOT SALES MARKET | Southeast Asia, South Asia, Middle East, Europe, Middle&South America, Africa and Oceania |
REGULAR SIZE | ||
SIZE (OUTER DIAMETER) | WALL THICKNESS | LENGTH |
20×20 / 25×25 | 1.2MM –2.75MM | 6M IN STOCK (OR CUSTOMIZED) |
30×30 / 20×40 / 30×40 / 25×40 | 1.2MM — 3.5MM | 6M IN STOCK (OR CUSTOMIZED) |
40×40 / 50x5030x50 / 25×50 / 30×60 / 40×60 | 1.2MM — 4.75 MM | 6M IN STOCK (OR CUSTOMIZED) |
60×60 / 50×70 / 40×80 / 40×50 | 1.2 MM — 5.75 MM | 6M IN STOCK (OR CUSTOMIZED) |
70×70 / 60×80 / 50×80 / 100×40 / 50×90 | 1.5MM — 5.75 MM | 6M IN STOCK (OR CUSTOMIZED) |
75×75 / 80×80 / 90×90 60×100 / 50×100 / 120×60 / 100×80 / 60×90 | 1.5MM — 7.75 MM | 6M IN STOCK (OR CUSTOMIZED) |
100×100 / 120×80 | 1.8MM — 7.75 MM | 6M IN STOCK (OR CUSTOMIZED) |
120×120 / 130×130 180×80 / 160×80 / 100×150 / 140×80 / 140×60 | 2.5MM — 10.0 MM | 6M IN STOCK (OR CUSTOMIZED) |
140×140 / 150×150 / 100×180 / 200×100 | 2.5MM — 10.0 MM | 6M IN STOCK (OR CUSTOMIZED) |
160×160 / 180×180 / 200×150 | 3.5MM — 11.0 MM | 6M IN STOCK (OR CUSTOMIZED) |
200×200 / 250×150 / 100×250 | 3.5MM — 11.0 MM | 6M IN STOCK (OR CUSTOMIZED) |
250×250 / 250×200 / 300×150 / 300×200 | 4.5MM — 15.0 MM | 6M IN STOCK (OR CUSTOMIZED) |
300×300 / 350×200 / 350×250 /300×150 | 4.5MM — 15.0 MM | 6M IN STOCK (OR CUSTOMIZED) |
350×350 350×300 / 450×250 / 400×300 / 500×200 | 4.5MM — 15.75 MM | 6M IN STOCK (OR CUSTOMIZED) |
400×400 / 280×280 450×300 / 450×200 / 400×350 / 400×250 / 500×250 / 500×300 | 4.5MM — 15.75 MM | 6M IN STOCK (OR CUSTOMIZED) |
Product Description rectangular carbon hollow cross-section pipe

High Strength and Structural Integrity
Rectangular steel pipes have higher bending and torsional resistance compared to round pipes in certain applications.Ideal for load-bearing structures and frameworks requiring superior strength and stiffness. Easy Welding and Fabrication
Flat surfaces make welding, bolting, and joining easier than round pipes.Simplifies assembly in modular and prefabricated structures. Excellent Durability and Corrosion Resistance
Made from high-quality carbon steel or alloy steel, with options for galvanized coating for corrosion protection.Ensures long service life even in outdoor or harsh environments.
Product Paramenters

Product name | Rectangular carbon hollow cross-section pipe | ||
Size | Rectangular Tube: 10*20-120*80mm Square Tube : 16*16-250*250 mm (check sizes provided from below table) | ||
Length | 6m or based on your request | ||
Standard | EN10210, EN10219, DIN17100, ASTM A36,JIS G3466 | ||
Materials | Q195, Q235, Q235B, Q275, Q345B, S235, S235jr, S355, S355jr, SS400, SS330, STK490,St33, St37, St52/ ASTM A36, A53, A106 | ||
Surface | Oil, bared, black paint, galvanized | ||
Product | Rectangular carbon hollow cross-section pipe | ||
Technique | Hot rolled, welded(erw) | ||
Usage | Civil engineering, architecture, steel towers, shipyard, scaffoldings, struts, piles for suppression of landslide and other structures | ||
Packing | Export standard package, suit for all kinds of transport, or as required. |

Our Service
At Kehuan, we implement change management strategies specifically tailored to the steel industry, seamlessly integrated into our operations. Our approach not only enhances immediate client benefits but also lays the groundwork for enduring advantages within your existing steel product portfolio.

Customized Product
Tailored solutions for product development to meet specific client needs.

Technical Consulting
Expert guidance on product selection, design optimization, and implementation.

Quality Assurance
Rigorous testing procedures to ensure reliability and performance.

Maintenance Guide
Comprehensive maintenance guides to ensure optimal product performance.

Certified Inspections
Certified evaluations to ensure compliance with industry standards.

24/7 Customer Support
Prompt assistance for inquiries, concerns, and technical issues.
Company Profile
At Kehuan, we excel in providing customized change management strategies specifically crafted for the steel industry. Our seamless integration approach ensures optimization of immediate client benefits while establishing long-lasting advantages within your existing steel portfolio.

Material Selection
Careful selection of high-quality raw materials.

Precision Cutting
Utilization of advanced cutting technologies for precise dimensions.

Forming and Shaping
Shaping raw materials into seamless steel pipes.

Heat Treatment
Application of heat treatment processes for enhanced durability.

Surface Finishing
Finishing processes for improved aesthetics and corrosion resistance.

Quality Assurance
Rigorous inspections to ensure reliability and adherence to standards.
Why Us
Selecting a steel service provider is a crucial decision, impacting the safety and performance of your projects. At Kehuan, we offer unmatched expertise in the steel industry. With years of experience, we possess in-depth knowledge of steel products, ensuring that your projects receive the highest level of care.

Industry Expertise
Reliable solutions backed by extensive industry experience.

Customized Solutions
Tailored options to meet your specific project requirements.

High-Quality Products
Guaranteed superior performance and durability in every product.

Advanced Technology
Precision and efficiency achieved through cutting-edge methods.

Exceptional Service
Prompt assistance and reliable support for all your needs.

Timely Delivery
On-time delivery, ensuring your projects stay on schedule.