321 Stainless Steel Ss Seamless Pipe/ Tube Welded Hollow Steel Pipe Square Rectangular Metal Tube

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Product Description

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Basic Information

Material Stainless Steel
Surface Treatment Polished
Usage Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration
Section Shape Square / Rectangular
Standard ASTM, AISI, GB, JIS, DIN
Grade 200/300/400 Series (304, 316, 316L, 321, 410, 430, etc.)
Tolerance ±1%
Delivery Time 8-14 Days

Product Parameters

Stainless Steel Pipe Parameters
Product Name Stainless Steel Square Pipe / Tube
Material Available 304, 304L, 309S, 310S, 316, 316Ti, 317, 317L, 321, 347, 347H, 304N, 316L, 316N, 201, 202
Wall Thickness 1mm - 150mm (Customizable)
Outer Diameter 6mm - 2500mm (Customizable)
Application Petroleum, food, chemical industry, construction, electric power, nuclear energy, biology, papermaking, shipbuilding, and boilers.

Company Overview

Production Base

We are a large domestic production base specializing in heat-resistant, corrosion-resistant, and wear-resistant alloys. Our facilities produce high-quality carbon steel plates, pipes, rods, and container steel. With a facility covering over 9,000 square meters and significant assets, our team includes dozens of specialized engineering and technical personnel to ensure product excellence.

Production Facility
Exhibition
International Presence

Actively participating in global exhibitions to showcase innovative achievements and professional solutions in thermal energy technology. We focus on enhancing brand awareness and expanding in international markets through in-depth communication with industry colleagues.

Professional Reception

We provide a warm reception for all visiting clients, offering detailed introductions to our business operations and product lines. Our team emphasizes professionalism and innovation during every client interaction.

Customer Visit
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Core Advantages

Smooth Incision

High precision cutting machines are used for all processes, ensuring the cut is polished smooth, flat, and burr-free.

Precision Cutting
Customization
Accept Customization

Sufficient stock and complete product specifications. Non-standard products can be customized according to specific drawings and requirements.

High Quality Materials

We adopt high-hardness steel that is welded firmly, resistant to cracking, and difficult to bend under pressure.

Material Quality
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Packaging & Shipping

We maintain a full range of standard steel products in stock to arrange quick shipments. We use standard export packaging suitable for various transport modes, also offering custom packaging for special requirements.

  • Delivery: 8 to 14 working days after deposit receipt.
  • Loading Ports: Major international ports including Qingdao, Shanghai, and Tianjin.
  • Tracking: Real-time logistics monitoring to ensure safety.
Packaging Details
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Frequently Asked Questions

What materials can you provide for square pipes?
We offer a wide range of stainless steel grades, including 201, 202, 304, 304L, 316, 316L, 310S, 321, and the 400 series.
How is the quality of the products guaranteed?
We provide pre-production samples before mass production and conduct a strict final inspection before every shipment to ensure compliance with standards.
Can the tubes be customized to specific sizes?
Yes, we specialize in customization. We can adjust wall thickness (1mm-150mm) and outer diameter (6mm-2500mm) based on your project needs.
What is the typical lead time for an order?
Standard stock items are usually ready for shipment within 8 to 14 working days. Custom orders may require additional time depending on specifications.
What payment methods do you accept?
We accept various payment types including T/T, L/C, D/P, MoneyGram, Credit Card, PayPal, and Western Union in multiple currencies (USD, EUR, JPY).
Which shipping ports do you use?
We primarily use major ports such as Qingdao, Shanghai, and Tianjin, but we can accommodate other specified ports based on customer requirements.

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