Square Pipe Steel Characteristics Usage Square Pipe Steel Specification List

Square pipe, is a kind of name for square pipe, that is, steel pipe with equal sides. It is a strip of steel rolled after the process. Square pipe steel, it is a kind of square-shaped body of the tube type, many kinds of material substances can be formed into a square tube body, it is medium in, most of the square tube to steel pipe as the majority, after unwrapping, flattening, curling, welding to form a round tube, and then rolled from the round tube into a square tube and then cut into the required length. The uses of square tube are construction, machinery manufacturing, steel construction and other projects. The following is an introduction to the square pipe steel characteristics of the use and square pipe steel specification table.

Square Pipe Steel Characteristics Usage

1, square pipe product description

Square pipe is a hollow square cross-section lightweight thin-walled steel pipe, also known as the steel refrigeration bending profiles. It is Q235 hot-rolled or cold-rolled steel strip or coil for the parent material by cold bending processing and molding, and then by high-frequency welding made of square cross-section shape and size of the steel. Hot rolled extra thick walled square tube in addition to wall thickening, its corner dimensions and edge straightness have reached or even exceeded the level of resistance welding cold forming square tube. Comprehensive mechanical properties, weldability, cold, hot working properties and corrosion resistance are good, with good low-temperature toughness.

2, square tube use

The use of square tube construction, machinery manufacturing, steel construction projects, shipbuilding, solar power generation bracket, steel structure engineering, power engineering, power plants, agricultural and chemical machinery, glass curtain wall, automobile chassis, airports, boiler construction, highway railings, housing construction, pressure vessels, petroleum storage tanks, bridges, power station equipment, lifting and transportation machinery and other higher-loaded welded structures. Other higher loads of welded structural parts, etc..

Square tube steel properties

1, plasticity

Plasticity refers to the metal material in the load, produce plastic deformation (permanent deformation) without destroying the ability.

2, hardness

Hardness is a measure of the degree of soft and hard metal materials pointer. At present, the most commonly used method for determining hardness in production is the indentation hardness method, which uses a certain geometric shape of the indenter under a certain load to press into the surface of the metal material to be tested, according to the degree of being pressed into the determination of its hardness value.

Commonly used methods are Brinell hardness (HB), Rockwell hardness (HRA, HRB, HRC) and Vickers hardness (HV) and other methods.

3, fatigue

The strength, plasticity, hardness discussed earlier are pointers to the mechanical properties of metals under static load. In fact, many machine parts are working under cyclic loads, in which conditions the parts will produce fatigue.

4, impact toughness

With a great speed on the machine parts of the load is called impact load, the metal in the impact load under the ability to resist damage is called impact toughness.

5, strength

Strength refers to the metal material under static load to resist damage (excessive plastic deformation or fracture) performance. Due to the action of the load in the form of tensile, compression, bending, shear, etc., so the strength is also divided into tensile strength, compressive strength, bending strength, shear strength, and so on. There is often a certain connection between the various strengths, the use of tensile strength is generally more as the most basic strength pointer.

Square tube steel specification table

Square tube formula

Square tube weight formula: 4 * wall thickness * (side length - wall thickness) * 0.00785

Round tube weight formula: {(circumference ÷ 3.14) - wall thickness}*. Wall thickness * 0.02466

Note: The above units are kg / m, of which the wall thickness and side length in millimeters, that is, mm.

Summary: The information about the characteristics of square tube steel use, square tube steel specification table is introduced here, I hope that this article is helpful to you. If you still do not understand what you can leave me a message below oh, we will answer for you as soon as possible.