Best Steel is a specialist in stainless steel, carbon steel, galvanized steel, nickel-based alloy, and PPGI/PPGL coils & sheets. We also provide a professional cutting service.
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Stainless Steel Square Tube
HIGH QUALITY PRODUCTS
Stainless Steel Square Tube
Stainless steel square tubes are hollow, long pieces of stainless steel with a square cross-section. These tubes are made from steel alloys containing at least 10.5% chromium, which provides excellent corrosion resistance. They come in various grades, dimensions, and finishes, making them suitable for a wide range of applications. The manufacturing process typically involves forming, welding, and sometimes cold finishing to achieve the desired dimensions and surface quality.
PRODUCT SPECIFICATION:
| Standard： | ASTM EN DIN GB ISO JIS | Certification： | SGS, ISO, ROHS |
| Length： | 6000-25000mm, etc | Surface： | 2B, 2D, BA, NO.1, NO.4, NO.8, 8K, Pickling, Bright, Mirror, Checkered, Embossed, Hair line, Sand blast, Brush, Etching, etc |
| Diameter： | 3mm–1000mm, etc | Production Process： | Cold Drawn, Cold Rolled, Bright Anneal, etc |
| Thickness： | 0.5-40mm | Surface Treatment: | Standard export package, suit for all kinds of transport, or as required. |
| Export Packing： | Waterproof Paper, Steel Strip Packed and other Standard Export Seaworthy Package, or customized package | Loading Port: | Pickled, Passivation, Inside & Outside Mechanical Polishing, BA, Electropolishing (EP) |
| Heat Treatment Condition: | Solution Annealing and water rapid quenched, Bright Annealing,Stess Relieving Heat Treatment for U tubes | Trade Terms: | FOB, CNF, CIF |
| Grade： | 201, 202, 304, 304L, 309, 309S, 310S, 316, 316L, 316Ti, 317L, 321, 347H, 409, 409L, 410, 410S, 420（420J1，420J2）, 430, 436, 439, 441, 444, 446, 1.4301, 1.4307, 1.4541, 1.4401, 1.4404 ,1.4571, 1.4438, 1.4539, 1.4547, 1.4529, 1.4562, 1.4410, 1.4878, 1.4845, 1.4828, 1.4876, 2.4858, 2.4819 | ||
| Advantage: | 1. high quality surface, clean finished; 2. corrosion & oxidation resistance, more durable; 3. high ductility and good toughness; 4. high strength and to deform; 5. the use to diversity | ||
| Container Size： | 20ft GP: 5898mm(Length)x2352mm(Width)x2393mm(High); 40ft GP: 12032mm(Length)x2352mm(Width)x2393mm(High); 40ft HC: 12032mm(Length)x2352mm(Width)x2698mm(High) | ||
Typical Chemistry:
The chemical composition of stainless steel square tubes varies depending on the grade. A common example is the 304 stainless steel grade:
- Chromium (Cr): 18% to 20%
- Nickel (Ni): 8% to 10.5%
- Carbon (C): ≤ 0.08%
- Manganese (Mn): ≤ 2%
- Silicon (Si): ≤ 1%
- Phosphorus (P): ≤ 0.045%
- Sulfur (S): ≤ 0.03%
Other grades, such as 316, 410, and 430, have different compositions to provide specific properties such as increased corrosion resistance or hardness.
Physical Properties:
The physical properties of stainless steel square tubes depend on the specific grade and processing methods, but typical properties include:
- Tensile Strength: Typically ranges from 515 MPa to 860 MPa.
- Yield Strength: Generally ranges from 205 MPa to 450 MPa.
- Elongation: Usually between 40% and 60%, indicating good ductility.
- Hardness: Varies depending on the grade and heat treatment, typically between 150 to 300 HB (Brinell hardness).
- Density: Approximately 7.8 g/cm³.
- Melting Point: Ranges from 1400°C to 1450°C.
- Thermal Conductivity: Typically around 15 W/m·K (lower than carbon steels).
- Electrical Resistivity: Approximately 0.072 µΩ·m.
Specifications:
Stainless steel square tubes are produced according to various standards to ensure quality and consistency:
- ASTM A554: Standard specification for welded stainless steel mechanical tubing.
- ASTM A312: Standard specification for seamless, welded, and heavily cold worked austenitic stainless steel pipes.
- EN 10296-2: European standard for welded stainless steel tubes for mechanical and general engineering purposes.
- JIS G3446: Japanese standard for stainless steel square tubes used in general structures.
Features:
Key features of stainless steel square tubes include:
- Corrosion Resistance: High resistance to rust and corrosion, making them suitable for harsh environments.
- Strength and Durability: Strong and durable, capable of withstanding significant stress and strain.
- Heat Resistance: Good resistance to oxidation and scaling at high temperatures.
- Hygiene: Easy to clean and sterilize, making them ideal for medical and food applications.
- Aesthetic Appeal: Attractive finish and appearance, suitable for decorative applications.
- Versatility: Available in various grades, sizes, and finishes to meet different application needs.
- Low Maintenance: Require minimal maintenance and have a long service life.
- Recyclability: Fully recyclable, contributing to sustainability.
- Formability: Excellent formability allows for easy fabrication into different shapes and components.
- Weldability: Good weldability, making them suitable for construction and manufacturing applications.
FREE SAMPLES
Our dedication to customer satisfaction is evident in our Free Sample offering. We provide complimentary samples of our products, allowing customers to evaluate quality and suitability firsthand. By offering Free Samples, we prioritize transparency, trust, and informed decision-making.
QUICK QUOTES IN 12 HOURS
Customer service is paramount, reflected in our quick 12-hour quote turnaround time. We prioritize efficiency, providing accurate and competitive pricing information promptly. This commitment to responsiveness ensures informed decision-making and project continuity.
PLANT TOURS AND VIDEO INSPECTIONS
We offer flexibility and transparency through video inspections and on-site plant tours. Our specialization in carbon steel products underscores our expertise and long-term supply capabilities.
ISO, BV, TUV, SGS CERTIFICATION
Our strength lies in stringent quality control practices, exemplified by our ISO 9001 Certification. This internationally recognized standard signifies our commitment to consistently exceeding customer expectations. Thorough inspections, testing, and compliance checks guarantee superior quality.
FLEXIBLE MINIMUM ORDER QUANTITY (MOQ)
We pride ourselves on a flexible MOQ policy, enabling customers to benefit from a low MOQ of just 1 ton. We accommodate diverse needs, ensuring accessibility and convenience. Our flexible MOQ fosters strong partnerships with businesses of all sizes, reinforcing our commitment to customer satisfaction.
QUESTION ANSWERS
Frequently Asked Questions
At Best Steel, we take pride in our commitment to quality, customization, and reliability. Our FAQ section is designed to address common inquiries, but please feel free to contact us for any specific questions or requirements you may have. We look forward to serving your steel needs with dedication and expertise.
Best Steel is a leading steel manufacturing and distributioncompany that provides high-quality steel products to various industriesand applications.
Best Steel offers a comprehensive range of steel products, including sheets, coils, bars, rods, pipes, tubes, structural shapes, and specialty items.We provide materials in various grades and dimensions to meet the specific needs of our customers.
Yes, one of our key strengths is customization.We work closely with customers to tailor steel solutions to their exact specifications.Whether it’s adjusting dimensions, altering grades, or providing specialty coatings, we can accommodate various customization requests.
Our manufacturing facilities are strategically located in various regions, allowing us to serve customers worldwide efficiently.Our global presence ensures timely delivery and meets diverse customer demands.
Best Steel is committed to the highest quality standards.We adhere to international quality certifications such as BV,TUV,SGS to ensure that our steel products meet or exceed industry expectations for strength, durability, and reliability.
Environmental sustainability is a top priority for Best Steel. Our production processes emphasize energy efficiency, waste reduction, and responsible sourcing of materials. We continually seek eco-friendly practices to reduce our environmental footprint.
Yes, we have a team of experienced engineers and technical experts who provide guidance, consultation, and support.Whether you need assistance with material selection, project planning, or technical inquiries, our team is here to help.
You can contact our dedicated customer service team directly through our official website or our sales representatives.We are responsive and ready to assist with inquiries, orders, or support.
It is free, depend on the value of the sample. The cost of the freight would be charge.
Best Steel is committed to being a responsible corporate citizen.We engage in various community development initiatives, support local educational programs, and prioritize the well-being of our employees.Our aim is to make a positive impact on the communities in which we operate.
