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Tianjin Lefin Industrial Co.,Ltd

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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Tianjin Lefin Industrial Co.,Ltd.

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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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.

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cape verde AS 1163 C350 Steel Pipes

AS 1163 C350 Steel Pipes Standard: AS 1163 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, Galvanization, 3PE, FBE coated......

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Product Description

In the AS 1163 standard, the most commonly used steel grade is C350. Below is a detailed description of this grade, including its properties, applications, and advantages:

Mechanical Properties
Yield Strength: Minimum 350 MPa.
This is the stress at which the steel begins to deform plastically. A yield strength of 350 MPa makes C350 suitable for medium-load structural applications.

Tensile Strength: Minimum430 MPa.
This indicates the maximum stress the steel can withstand before breaking. The range ensures a good balance between strength and ductility.

Elongation: Typically around 15–20%.
This measures the steel's ability to stretch before fracture, indicating good ductility and toughness.

Chemical Composition
C350 is a carbon-manganese steel with controlled amounts of alloying elements to achieve its mechanical properties.

Key elements include:

Carbon (C): Provides strength and hardness. Maximum 0.20%.
Manganese (Mn): Enhances strength and toughness. Maximum 1.60%.
Silicon (Si): Improves strength and deoxidation during manufacturing. Maximum 0.25%.
Sulfur (S) and Phosphorus (P): Kept at low levels to ensure good weldability and toughness. Both maximum 0.03%
Weldability And Formability
Weldability: C350 is highly weldable, making it suitable for fabrication into complex structures. Proper welding techniques, such as preheating and post-weld heat treatment, may be required for thicker sections to prevent cracking.

Formability: The steel can be easily cut, drilled, and shaped, making it ideal for a wide range of structural applications.

Applications
C350 is widely used in various structural and engineering applications due to its balanced properties. Common uses include:

Commercial Buildings: Frameworks, columns, and beams for offices, shopping centers, and warehouses.

Bridges: Medium-span bridges, trusses, and support structures.

Industrial Facilities: Frames for factories, equipment supports, and storage racks.

Infrastructure: Transmission towers, communication towers, and transportation structures.

Residential Construction: Light to medium structural components in housing projects.

Advantages
Cost-Effectiveness: C350 provides a good balance between strength and cost, making it an economical choice for many projects.

Versatility: Its properties make it suitable for a wide range of applications, from light to medium structural loads.

Availability: As one of the most commonly used grades, C350 is readily available in the market, ensuring easy procurement.

Durability: The steel offers excellent resistance to wear and tear, ensuring long-term performance in structural applications.

Comparison With Other Grades

Grade	Yield Strength (MPa)	Tensile Strength (MPa)	Typical Applications
C250	250	320	Light structural work, residential buildings
C350	350	430	Commercial buildings, bridges, industrial structures
C450	450	500	Heavy-duty structures, mining equipment

AS 1163 C250: C350 offers higher strength (350 MPa vs. 250 MPa yield strength) and greater load-bearing capacity.
AS 1163 C450: While C450 provides even higher strength (450 MPa yield strength), C350 offers better ductility and is often more cost-effective.
Conclusion
AS 1163 C350 is the most commonly used steel grade in the AS 1163 standard due to its excellent combination of strength, weldability, formability, and cost-effectiveness. It is widely applied in commercial, industrial, and infrastructure projects, making it a versatile and reliable choice for medium-load structural applications. Its availability and balanced properties ensure it remains a popular option in the construction and engineering industries.