ASTM A572 Steel Pipe

ASTM A572 Pipe

Shape:round square rectangular or custom
Dimensions:  Customizable
Round:10.3-820mm
square:10*10-1200*1200mm
rectangular:10*15-800*1200mm
W.T.: 0.5-50mm 
Length:0.5-24m or custmized
Grade：Gr.42,Gr.50,Gr.55,Gr.60,Gr.65,etc
Standard：ASTM A572
Surface Treatment：Bare,oil,painted,galvanized,etc.
MOQ:2-5 Tons
Capacity: 1 million tons / year
Packaging:PVC package or follow your needs
Port of origin:Tianjin Port
Payment：TT/LC,etc

ASTM A572 Steel Pipe Benifit

The advantages of ASTM A572 steel pipe can be summarized as:

Excellent mechanical properties and weldability, outstanding strength and corrosion resistance. Featuring low carbon and silicon content, high strength, and high toughness. It boasts high strength, good plasticity, and weldability. With high tensile strength and elongation, it demonstrates remarkable plastic deformation ability when subjected to external forces, effectively absorbing and dispersing impact forces.

ASTM A572 Steel Pipe Mechanical Properties

The mechanical property parameters of ASTM A572 steel pipe also vary with different grades, but generally include the following indicators:

Yield strength: the yield strength of different grades of ASTM A572 steel pipe varies, for example, the yield strength of A572 Gr65 is greater than 450Mpa.
Tensile strength: Similarly, the tensile strength of different grades of ASTM A572 steel pipe also varies, A572 Gr65 tensile strength is greater than 550Mpa.
Elongation: ASTM A572 steel pipe usually has a high elongation, for example, the elongation of A572 Gr65 is greater than 17%.

Bridge Structures

ASTM A572 steel pipe is widely used in bridge structures because of its excellent yield strength, tensile strength, elongation and corrosion resistance.

Building Structure

ASTM A572 steel pipe is widely used in building structures because of its excellent yield strength, tensile strength, elongation and corrosion resistance.

Mechanical Manufacturing

In these high-tech fields, the high-temperature stability and mechanical properties of ASTM A572 steel pipes have been fully utilized.

Shipbuilding

ASTM A572 steel pipes are also widely used in the fields of shipbuilding and mechanical manufacturing, such as manufacturing ship structures, mechanical components, etc.

Manufacturing Process

The manufacturing process of ASTM A572 steel pipe consists of the following key steps, which will be explained below according to a clear structure:

Raw Material Preparation:
Iron is smelted into steel through smelting equipment such as electric arc furnaces or blast furnaces. This step is the basis for ensuring that the pipe has the required chemical composition.
Continuous casting:
The steel obtained from smelting is poured into a continuous casting machine to produce steel slabs through the continuous casting process. Continuous casting is an important step in modern steel production, which improves productivity and product quality.
Rolling:
The steel plate billet will be sent to the rolling mill for rolling, through the hot rolling, control rolling and other processes to produce the required specifications of the steel pipe.A572Gr65 steel plate is required to be delivered in hot rolled or control rolled condition to ensure that it has good low temperature impact toughness.
During the rolling process, a strict two-stage controlled rolling process is used. Rough rolling stage using high temperature fast rolling, large underpressure to ensure that the rolling penetration and grain refinement; finishing stage control of the opening temperature and final rolling temperature, in order to reduce the impact of mixed crystals on the performance of the steel pipe.

Heat treatment:
Heat treatment of steel pipe after rolling, including normalizing, tempering, quenching and other processes. These treatment processes can further improve the mechanical properties and processing performance of steel pipe.
Quality control:
Strict quality control is carried out during the whole manufacturing process, including chemical composition analysis, mechanical properties testing, surface quality inspection and so on. Ensure that ASTM A572 steel pipe meets the relevant standards and customer requirements.
Special processing (optional):
According to customers' requirements, the steel pipe is subjected to special surface processing, such as hot-dip galvanizing anodic oxidation, environmentally friendly spraying and so on. These processes can improve the corrosion resistance, aesthetics and service life of the steel pipe.
Finished product inspection:
Conduct finished product inspection on the completed ASTM A572 steel pipe, including dimensional measurement, appearance inspection, non-destructive testing and so on. Ensure the quality of the steel pipe meets the relevant standards and customer requirements.