Effect of adding elements to galvanized steel pipe on its properties

Release Time :

2022-10-27 13:24

(1) Carbon; The higher the carbon content, the harder the steel, but the less plastic and ductile it is.
(2) sulfur; It is harmful debris in steel. When steel with high sulfur content is processed under pressure at high temperature, it is easy to crack, which is usually called hot brittleness.
(3) Phosphorus; Can make the plasticity and toughness of steel significantly decreased, especially at low temperature is more serious, this phenomenon is called cold brittleness. In high quality steel, sulfur and phosphorus should be strictly controlled. But from the other side, the low carbon steel contains higher sulfur and phosphorus, can make its cutting easy to break, to improve the machinability of steel is favorable.
(4) Manganese; Can improve the strength of steel, can weaken and eliminate the adverse effect of sulfur, and can improve the hardenability of steel, high manganese content of high alloy steel (high manganese steel) has good wear resistance and other physical properties.
(5) Silicon; It can improve the hardness of steel, but plasticity and toughness decline, electrical steel contains a certain amount of silicon, can improve the soft magnetic properties.
(6) tungsten; It can improve the red hardness and thermal strength of steel, and improve the wear resistance of steel.
(7) chromium; It can improve the hardenability and wear resistance of steel, and improve the corrosion resistance and oxidation resistance of steel.
(8) Zinc; In order to improve the corrosion resistance, the general steel pipe (black pipe) is galvanized. Galvanized steel pipe is divided into hot dip galvanized and electric steel zinc two kinds, hot dip galvanized galvanized layer is thick, electric galvanized cost is low, so there is galvanized steel pipe.

Application field of square tube

Application: Widely used in machinery manufacturing, construction industry, metallurgical industry, agricultural vehicles, agricultural greenhouses, automobile industry, railway, highway guardrail, container skeleton, furniture, decoration and steel structure fields.

2022-10-27

Effect of adding elements to galvanized steel pipe on its properties

Inrecent years, ITU argon pipeline welding method has been widely usedin petrochemical industry, power construction and energy system.Different from the common arc extinguishing and priming process ofmanual arc welding, manual arc welding fills the cover surface.

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Stainless steel pipe what hardness index

In the stainless steel pipe standard, Brinell hardness is the most widely used, often to indentation diameter to indicate the hardness of the material, both intuitive and convenient. But for harder or thinner steel pipe is not suitable.

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What are the classifications of seamless steel pipes

The materials are ordinary and high quality carbon structural steel (Q215-A ~ Q275-A and No. 10 ~ 50 steel), low alloy steel (09MnV, 16Mn, etc.), alloy steel, stainless acid resistant steel, etc. According to the purpose, it is divided into general purpose (for water and gas pipelines and structural parts, mechanical parts) and special purpose (for boiler, geological exploration, bearing, acid resistance, etc.).

2022-10-27

Performance of square pipe

Square pipe, square pipe and rectangular pipe is a kind of address, that is, the side length is equal and unequal steel pipe. It is made of strip steel through processing and rolling. Generally, strip steel is unpacked, leveled, crimped, welded to form a round tube, which is then rolled into a square tube and cut to the required length.

2022-10-27

Corrosion resistance of welded steel tubes

In the production of T-welded steel pipe, the wrong edge often occurs, and there are many influencing factors. In production practice, steel pipe is often degraded by the wrong edge. Therefore, it is necessary to analyze the causes of spiral steel pipe misalignment and its preventive measures.

Shandong Xinghan Aluminum Industry Group Co., Ltd.

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