Established in 2005, Tianjin Lefin Industrial Co., Ltd. is a professional manufacturer and solution provider in the steel industry. The group consists of Tianjin LEFIN Industrial Co., Ltd., Tianjin LEFIN Steel Import & Export Co., Ltd., and Tianjin Shengqifeng International Trading Co., Ltd.
With total assets exceeding 30 million USD and a combined production area of over 60,000 square meters, we are committed to delivering excellence in steel manufacturing, processing, and trading.
At LEFIN, we:
●Support long-term cooperation with global partners.
●Provide the most advanced smart solutions for various steel applications.
●Adopt top-tier technology to ensure superior quality and efficiency.
●Offer one-on-one ODM services, customized to meet every client’s unique needs.
As a trusted steel manufacturer, TIANJIN LEFIN STEEL GROUP strives to create sustainable value through innovation, reliability, and professional service.
What steel pipes Do We Offer?
We are a leading steel pipe manufacturer and supplier in China. Therefore, we are able to offer a wide variety of steel pipe products to meet the needs of multiple industries.
- Hollow Section
- Steel Hollow Section
- Steel Pipe
- Ssaw Pipe
- Lsaw Pipe
Steel
Products
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Products
Your trustworthy China steel pipe manufacturer
Company Profile
Factory
Our main products are Hollow Sections, including:Square Tubes、Rectangular Tubes
Circular Hollow Sections, etc.
Main production sizes:From 20mm × 20mm up to 1200mm × 1200mm、Thickness: 1.5mm – 50mm、Length: 1m – 25m
Production Standards:ASTM A500, ASTM A501, EN10219, EN10210, JIS G3466, AS/NZS1163, etc.
Available Grades:S355J2H, S355JOH, S355JRH, S275, S235, S460, S550, GR.A/B/C/D, C250L0, C350L0, Q355B, etc.
Production Techniques:Cold-formed hollow sections、Hot-formed hollow sections
All these steel pipes are widely used in:Steel structure construction、Oil and natural gas industries、Shipbuilding、Chemical industry、Water conservancy projects、Electrical industry、Building and other related fields
Advanced Design, Technology Research,
Intelligent Manufacturing
Remains at the Forefront of Product Innovation Through Scientific Advancements.
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0+Extensive projects experience: (more than 150 projects),manufacturing &exporting experience (since 2005). -
0K+Competitive price: Annual capacity over 300000 MT help us get better raw material price and better shipping cost. -
0+Global sales scope: Our products have been exported to more than 70 countries worldwide and have received positive feedback. -
0+First-classervice: Professional Sales Manager, offering patient and professional services; dedicated factory laboratory to control product quality; a multi-person pre-sales team to ensure delivery schedules. We will always be with you to address your needs and solve your problems.
Different Types of Steel Pipes
We are a professional Chinese steel pipe manufacturer with 20 years of production experience. We can produce a wide range of high-quality steel pipes, including square pipes, rectangular pipes, round hollow sections, and more.
On-Time. Certified. Direct.
Reliable delivery, rigorous quality control, and factory-direct pricing-all from one mill.
First-class Support And
After-Sales Service
After-Sales Service
We have professional sales team can give all clients quick quotation for required products and our mill can supply free samples with good quality.
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Excellent Product QualityThere are more than 300 employees and 20 engineers now. We have own lab to make sure every order quality.Read More
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Rich Experience In ProductionLiquids and gas/oil transportation, Steel structure building, concrete precast, building material, ship building, Highway&Bridge constructionRead More
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After-sales ServiceWe have professional sales team can give all clients quick quotation for required products and our mill can supply free samples with good quality.Read More
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Innovative spirit and sustainable developmentWe focus on technological innovation and research and development, and constantly innovate to meet the ever-changing market and customer needs.Read More
Latest News
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![What Factors Affect The Quality Of Large-diameter Spiral Steel Pipes?]()
Jun 05, 2026What Factors Affect The Quality Of Large-diameter Spiral Steel Pipes?A Comprehensive Analysis of Factors Affecting the Quality of Large-Diameter Spiral Steel Pipes Large-diameter spiral steel pipes (typically referring to thos... -
![A Practical Guide To EN 10219 Standard: Choosing The Right Steel Grade For Your Hollow Sections]()
Jun 05, 2026A Practical Guide To EN 10219 Standard: Choosing The Right Steel Grade For Your Hollow SectionsEN 10219 is a key European standard for cold‑formed welded structural hollow sections made from non‑alloy and fine‑grain steels. This guide explains the stan... -
![Comprehensive Guide To ASTM A500: Selecting The Right Steel Grade For Your Hollow Structural Sect...]()
Jun 04, 2026Comprehensive Guide To ASTM A500: Selecting The Right Steel Grade For Your Hollow Structural Sect...Importance of hollow structural sections (HSS) in North American construction. Overview of ASTM A500 as the key standard for cold-formed welded/seamless car...
