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About us
Tianjin lefin Industrial
TIANJIN LEFIN STEEL GROUP containing Tianjin lefin Industrial Co.,Ltd. 、Tianjin lefin steel import & export Co.,Ltd and Tianjin Shengqifeng International Trading Co., Ltd. -
Products
Steel Pipe Processing
Our main products include 1/2inch to 16 inch ERW PIPE/GI PIPE which has been produced according to BS1387/ASTM A53/EN10219/EN10255/EN10217 Standard -
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Service Capability
Guarantee Quality
Our steel pipes are suitable for oil, natural gas, shipbuilding, chemical industry, water conservancy, electrical, steel structure, construction and other related fields.
Our main products include 1/2inch to 16 inch ERW PIPE/GI PIPE which has been produced according to BS1387/ASTM A53/EN10219/EN10255/EN10217 Standard
Our main products include 1/2inch to 16 inch ERW PIPE/GI PIPE which has been produced according to BS1387/ASTM A53/EN10219/EN10255/EN10217 Standard
Has rich experience in steel pipe processing, can be customized according to customer requirements according to the drawing and sample processing, assist in the development of new products.
Product Description
Brief Introduction
NZS1163 HOLLOW SECTION
Standard:NZS1163
Grade: C250, C250L0, C350, C350L0, C450, C450L0
Outside diameter: 20-660mm Wall Thickness:1.3-16mm
Outside diameter: 20*20-1200*1200mm Wall Thickness: 1.3-50mm
Outside diameter: 20*30-1500*1200mm Wall Thickness: 1.2-50mm
The Wall Thickness Tolerance: ±5%
Length: normally 5.8m, 6m, 12m or as your required
Surface Treatment: Bare Finish, Painting, Oiling, Galvanzation, 3PE, FBE coated......
Chemical Composition
| Grade | Chemiacal Composition | ||||||||
| C | Si | Mn | P | S | Cr | Mo | Al | Ti | |
| C250 C250L0 | 0.12 | 0.05 | 0.50 | 0.03 | 0.03 | 0.15 | 0.10 | 0.10 | 0.04 |
| C350 C350L0 | 0.20 | 0.45 | 1.60 | 0.03 | 0.03 | 0.30 | 0.10 | 0.10 | 0.04 |
| C450 C450L0 | 0.20 | 0.45 | 1.70 | 0.03 | 0.03 | 0.50 | 0.35 | 0.10 | 0.04 |
Physical requirement
Grade | Minimum yield strength(MPa) | Minimum tensile strength(MPa) | Minimum Elongation(%) | |||||
Circular hollow section | Rectangular hollow section | |||||||
≤15 | ＞15≤30 | ＞30 | ≤15 | ＞15≤30 | ＞30 | |||
C250 | 250 | 320 | 18 | 20 | 22 | 14 | 16 | 18 |
C350 | 350 | 430 | 16 | 18 | 20 | 12 | 14 | 16 |
C450 | 450 | 500 | 12 | 14 | 16 | 10 | 12 | 14 |
Detailed Information
Hollow Sections of the AS/NZS 1163 standard are widely used in many fields due to their high strength, durability and versatility. The following are the main application scenarios:
1. Building structure
The AS/NZS 1163 Hollow section is widely used in building structures, including residential, commercial and industrial buildings. They can be used in beams, columns, trusses and other load-bearing structural components, with high strength and light weight characteristics, easy to transport and install.
2. Infrastructure projects
In the construction of Bridges, highways, railways and other infrastructure, AS/NZS 1163 hollow sections are used as critical support structures to ensure safety and durability in highly stressed environments. In addition, they can also be used for sidewalks, railings, sign structures and other auxiliary facilities.
3. Mechanical and industrial applications
The hollow section is suitable for mechanical manufacturing and industrial equipment, such as conveying systems, shelves, frames, etc. Its high strength and lightweight properties make it an ideal material for increasing the reliability and installation efficiency of equipment.
4. Energy and Mining
In the oil, gas and mining sector, the AS/NZS 1163 hollow section can be used on oil RIGS, mining equipment and associated delivery systems.
5. Other applications
Public space and urban landscape: used for architectural appearance, decorative structures, etc., to enhance the functionality and aesthetics of public space.
Heavy industry: includes frame structures for manufacturing plants and supporting parts for heavy machinery.
The versatility and reliability of the hollow section of AS/NZS 1163 make it an important material in modern construction and engineering, able to meet a wide range of structural and mechanical needs.
Address: Hengtai Road,Daqiuzhuang Town,Jinghai County,Tianjin,China
Mob: +8615122229899(whatspp)
Phone: +86 22 58171905
Fax: +86 22 58171902
E-mail:info@lefinsteel.com
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