Forge Strength & Longevity: Premium Industrial Stainless Steel Square Tubes

Elevate your projects with the unmatched durability, hygiene, and performance of our Industrial Stainless Steel Square Tubes. Engineered to excel in the most demanding environments worldwide, our tubes are the smart, sustainable choice for discerning international buyers seeking reliable, long-lasting solutions.

Uncompromising Material Excellence:

• Core Grades: Primarily AISI 304 (1.4301) and AISI 316/L (1.4401/1.4404), the global standards for industrial corrosion resistance. 316/L offers superior performance in chloride-rich or highly corrosive environments (marine, chemical).

• Quality Assurance: Manufactured from certified prime stainless steel billets, adhering strictly to international standards (ASTM A554, EN 10296-2, JIS G3463, etc.). Full material traceability available.

• Precision Manufacturing: Produced using state-of-the-art welded & cold-drawn or seamless processes, ensuring consistent wall thickness, tight dimensional tolerances (ASTM A484), and excellent straightness.

• Surface Finishes: Available in versatile finishes to suit application needs:

  • Mill Finish: Standard, cost-effective.

  • Brushed (Satin): Attractive, hides minor scratches.

  • Polished (Mirror/Bright): Superior aesthetics & enhanced cleanability.

  • Bead Blasted: Uniform matte appearance.

Why Our Stainless Steel Square Tubes Deliver Unbeatable Value:

1. Exceptional Corrosion Resistance: The defining advantage. Withstands rust, oxidation, and chemical attack far better than carbon steel or aluminum, drastically reducing maintenance costs and extending product lifespan, especially in harsh environments. (Crucial for ROI).

2. Superior Strength-to-Weight Ratio: Provides excellent structural rigidity and load-bearing capacity without excessive weight, optimizing design efficiency and material usage.

3. Hygienic & Easy to Clean: Non-porous surface prevents bacterial growth and allows for thorough sanitation – essential for food, medical, and pharmaceutical applications. Meets strict hygiene regulations (e.g., FDA, EHEDG).

4. Aesthetic Appeal & Modern Look: The clean lines and inherent luster of stainless steel offer a professional, high-quality appearance suitable for both functional and visible applications. Maintains its look over time.

5. Outstanding Durability & Long Service Life: Resists wear, abrasion, and impact exceptionally well. Offers a significantly longer lifespan than alternatives, reducing total cost of ownership and replacement frequency.

6. Temperature Resistance: Maintains structural integrity and performance across a wide temperature range, suitable for high-heat or cryogenic applications.

7. Sustainability & Recyclability: Stainless steel is 100% recyclable without loss of properties, supporting your environmental goals and sustainable sourcing initiatives.

8. Design Versatility: The square profile offers excellent torsional stability and ease of joining/fabrication (welding, machining, clamping) compared to round tubes for many structural frameworks.

Powering Industries Across the Globe:

Our industrial-grade stainless steel square tubes are the backbone of countless critical applications:

• Architectural & Construction: Handrails, guardrails, balustrades, structural frameworks, curtain wall systems, modern furniture, signage frames. (Emphasize aesthetics & weather resistance).

• Food & Beverage Processing: Conveyor frames, equipment supports, work tables, trolleys, washdown areas, storage racks. (Highlight hygiene & corrosion resistance).

• Chemical & Pharmaceutical: Process equipment supports, piping guards, laboratory furniture, reactor frames, cleanroom structures. (Stress chemical resistance & cleanability).

• Marine & Offshore: Deck fittings, railings, platform structures, equipment supports exposed to saltwater. (316/L is key here).

• Automotive & Transportation: Chassis components, exhaust system supports, cargo racks, specialized vehicle frames.

• Industrial Machinery: Machine guards, safety cages, frames for automation equipment, material handling systems, workstations.

• Medical & Healthcare: Equipment carts, stretcher frames, instrument stands, shelving, surgical lighting supports. (Focus on hygiene & durability).

• Renewable Energy: Solar panel mounting frames, biogas plant structures, wind turbine access platforms.

We understand the critical demands of international supply chains. Partner with us for:

• Consistent Global Quality: Rigorous in-process and final inspections (dimensional, visual, material certs - MTC) ensure every tube meets spec, shipment after shipment.

• Competitive International Pricing: Optimized manufacturing and logistics for cost-effective solutions, maximizing your margin.

• Reliable Volume Production & On-Time Delivery: Robust capacity and efficient logistics networks to meet your deadlines, anywhere.

• Customization Capabilities: Wide range of sizes (OD, wall thickness), lengths (standard & cut-to-size), grades (304, 316L), and finishes. Low MOQs available.

• Technical Expertise & Support: Dedicated team to assist with material selection, specifications, and application advice.

• Export Proficiency: Seamless documentation (Certs, COO, etc.) and Incoterms understanding for smooth cross-border transactions.

Quality Inspection

Quality Management Department is establshed in the enterprise, which is responsible for the implementation of quallty management acrossall sectors, including QC, QA and implement and supervise various management system. The company reviews the Quality Manual byconducting management reviews annually to confirm its conformance, effectiveness and suitability.

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Project Achievement

HENGLI Petrochemical 40 million / year ton of oil refining integration project	ZHEJIANG Petrochemical 40 million / year ton of oil refining integration project	LIANYUNGANG Petrochemical 3.2 million tons / young hydrocarbon comprehensive	YISHENG New Material The 6.6 million tons / year of the PTA project	CNOOC Huizhou Refining & Chemical Co Huilian Phase II, 22 million / year ton of oil refining Reconstruction and expansion project	Sinopec Zhenhai Refining & Chemical Company 1.2 million / year ton ethylene renovation and expansion project	Wanhua Chemical 480,000 tons / year bisphenol A integration project	GUANGXI Huayi New Materials Integration project of new chemical materials	CNOOC Shell The SMPO & POD project	China AtlantoShaanxi Coal Chemical Industry: 1.8 million tons / year ethylene glycol project
Hainan Huasheng 2.26 million tons / year non-photogamic polycarbonate project	Shenghong Refining The 16 million tons / year oil refining project	Anhui Haoyuan Chemical Industry 300,000 tons / year ethylene glycol project	Heilongjiang Longyou Petrochemical Company5.5 million tons / year heavy oil catalytic pyrolysis project	HuaLu Hengsheng 500,000 tons / year ethylene glycol project	Baofeng Energy600,000 tons / year methanol to olefin project	Jiangnan Shipyard (98000m³ liquefied ethane ship, etc.) Brand number: 316 / 316L, delivery time: 2020.12	Keppel shipyard in Singapore (FLNG ship) Brand number: 316 / 316L, delivery time: 2020.1	Guangzhou Wenchong Shipyard (Super double-phase steel desulfurization tower) Brand number: S32750 Delivery time: 2021.3	CSSC Dalian (FPSO, MV31, etc.) Brand number: 316L, etc., delivery date, 2019.8
725 Institute of China Shipbuilding Industry (Cu-Ni alloy Tube)	Nantong COCSO Shipyard (FSRU ship module)	CIMC Raffles (Drilling Rig)	CNOOC Orient 13-2 (Lined pipe)	CNOOC Bozhong 19-6 (Lined Pipe)	Petrobras MODEC FPSO (COSCO Shipping)	CNOOC Guangxi LNG, storage and transportation storage Brand number: 304 / 304L Specification: (8 "~32")×(3.76~9.53mm)	CNOOC Zhejiang LNG Phase II Brand number: 304 / 304L Specification: (6 "~28")×(7.11~10.31mm)	Sinopec Shandong LNG Phase II Brand number: 304 / 304L Specification: DN250 SCH10S	LIANYUNGANG Petrochemical A 4X160000m³ low-temperature ethane storage tank Brand number: 304 / 304L Specification: 813X12.7MM Delivery time: 2020.9
Sinopec Luoyang Institute Wenzhou LNG terminal Brand number: 304 / 304L Specification: 219.1~711X12.7MM Delivery time: 2022.3	Huatai Shengfu 160,000 m ³ low-temperature ethane storage tank Brand number: 304 / 304L Specification: 219~508X9.53MM	YAMAL LNG Brand number: 304 / 304L Specification: 406~914X9.53MM	Beijing Maiden Voyage	Oriental Hope	Sichuan Yongxiang 70,000 tons / year high purity polysilicon project	Xinjiang Daquan 25,000 tons / year high purity polysilicon project	Eagle Central China Paper Industry 500,000 tons of box board project	Guangxi Sun Paper 3.5 million tons of forest pulp and paper integration project	APP for Asian pulp and paper Chemical machine pulp and sewage treatment project
TCL Shenzhen Huaxing Optoelectronics semiconductor clean pipeline project	Beijing Daxing Airport	Hong Kong-Zhuhai-Macau/Macao Bridge Tubes used for stainless steel construction	CNNC Xiapu nuclear Power Plant Fast reactor demonstration project of CNNC 2.3	CONBA Stainless steel pipe for pharmaceutical engineering	Shenghong Refining Stainless steel associated heat pipe	Hangzhou Sewage Treatment Plant Stainless steel pipe for backwash purification unit	Qilu Pharmaceutical Fluid stainless steel pipe for raw material delivery	Zijin Mining Wet copper smelting, stainless steel sewage pipe	ect
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Certificate

API-5LD AUTHENTICATION	American Petroleum Institute API 5LC Certificate	ASME Certificate in the United States	EU PED&AD2000 certificate	ABS classification society certification certificate in the United States	DNV Det Norske Veritas Certificate	RINA Italian Bureau of Shipping Certificate	BV French Bureau of Shipping certification	LR Lloyd's Register Certificate of Approval	Customs Union EAC Certificate	Russian GOST certificate

Raw Material Vendors	Cooperation Partners

Request your competitive quote, detailed specifications, or material samples today!

FAQ:

Q: Where is this product manufactured?

A: This product is manufactured in China.

Everest Technology (Wuxi) Co., Ltd. is a one-stop industrial innovation solution provider, specializing in premium raw materials, precision manufacturing, and green technology. We empower global clients with end-to-end services from design to delivery, rooted in material expertise, smart manufacturing, and sustainable innovation.