AS 1163 HOLLOW SECTION

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AS1163 HOLLOW SECTION

Grade: C250, C350, C450
Outside Diameter:
20MM × 20MM - 1200MM × 1200MM(SHS)
20MM × 30MM - 1000MM × 1500MM(RHS)

Wall Thickness: 1.2MM - 50MM
Wall thickness tolerance:±10%

Surface Treatment: Drilling Holes, Painting, Welding, Oil painting, Cutting, Marking, Galvanized

Application: Building, construction, infrastructural- related sectors, airport, water, oil, gas, automobile and the general manufacturing industries
Length: 1M - 12M,commonly used 5.8M,6M,12M

Meaning of the chemical composition of AS 1163 HOLLOW： 

 

1. Carbon (C) :

- Carbon content affects the strength and hardness of steel. In the AS 1163 standard, different grades of steel have different carbon content limits to ensure the strength and weldability of the material.

2. Silicon (Si) :

- Silicon is mainly used as a deoxidizer in steel, helping to improve the strength and hardness of steel. The limitation of silicon content in the standard helps to control the mechanical properties of the material.

3.Manganese (Mn) :

- Manganese is an important element for improving the strength and hardness of steel, while also helping to eliminate the adverse effects of sulfur. The restriction of manganese content in AS 1163 ensures the strength and toughness of the steel pipe.

4. Phosphorus (P) and sulfur (S) :

- Phosphorus and sulfur are harmful elements in steel, which reduce the plasticity and toughness of steel. The AS 1163 standard imposes strict limits on the content of these two elements to ensure the performance of the steel pipe.

5. Chromium (Cr), molybdenum (Mo), aluminum (Al), titanium (Ti), niobium (Nb) :

- These elements can improve the properties of steel under certain conditions, such as corrosion resistance, strength and toughness. The content of these elements is also clearly specified in the standard.

6. Carbon Equivalent (CE) :

- Carbon equivalent is a reference index for evaluating the weldability of steel. With the increase of carbon value, the weldability of steel will become worse. When the carbon quantity is greater than 0.4% ~ 0.6%, the sensitivity of cold crack will increase, and a series of technological measures such as preheating, post-heating and welding with low hydrogen welding materials should be taken during welding.

 

The specification of these chemical compositions ensures the performance and reliability of AS 1163 HOLLOW SECTION in a variety of applications.

Yield Strength：

Yield Strength is the maximum stress that a material can withstand before it becomes plastic. For metal materials, yield strength is an important mechanical property index, which marks the limit of material transformation from elastic deformation to plastic deformation.

On a stress-strain curve, the yield strength usually corresponds to a specific point on the curve, the yield point. For many metals, the yield point is a distinct feature that appears as an inflection point or plateau on a curve. At this point, the material begins to undergo plastic deformation, and the deformation continues even though the stress is no longer increasing.

Tensile Strength：

Tensile Strength is the amount of stress a material is subjected to during a tensile test. It is an important mechanical property index to measure the resistance to tensile fracture of materials.

When a tensile test is performed, the material sample is stretched until it breaks. The tensile strength usually corresponds to the highest point on the stress-strain curve, indicating the maximum stress a material can withstand before breaking. When the tensile strength is reached, the material will break or be destroyed.

 

 

What are the specific test requirements of AS 1163?

1. Tensile test:

- AS 1163 requires tensile tests to determine the strength and properties of the material. Tensile tests measure the ability of a material to withstand tension and must follow the guidelines specified in AS 1391.

2. Impact test:

- The standard specifies impact tests to measure the ability of materials to resist crushing forces. Impact tests must be performed on three separate test pieces for each sample preparation.

3. Flattening test:

- The flattening test evaluates the material's resistance to extrusion pressure. These tests are critical to understanding the overall strength and durability of the AS 1163 material.

4. Chemical composition analysis:

- According to AS 1163, the sampling method for chemical analysis must comply with AS/NZS 1050.1 or ISO 14284 to ensure the accuracy of the analytical results.

5. Dimensions and tolerances:

- AS 1163 lists the dimensions and mass tolerances of cold formed hollow steel, including external dimensions, thickness, eccentricity, concave/convex surface, square of edge, outer corner profile, torsion, straightness and mass per unit length.

These test requirements ensure that AS 1163 cold formed structural steel hollow profiles meet specific mechanical properties and dimensional tolerances for a wide range of construction and engineering applications.