4140, 4340, 5120, 6150, 8620 Seamless Alloy Steel Pipe Forging, Tube Hot Rolled Cold Rolled

1. What is an alloy steel pipe/tube?

Alloy steel pipe is a type of steel pipe with high strength, hardness, and wear resistance that contains a specific ratio of alloy elements. Due to the addition of alloy elements, alloy steel pipes provide a wider range of characteristics and uses than regular steel pipes. Each nation has developed its own national standards for alloy steel pipes in order to guarantee performance in terms of quality and safety.

In high-pressure and high-temperature pipelines and machinery such as power plants, nuclear power plants, high-pressure boilers, high-temperature superheaters, and reheaters, alloy steel pipes are primarily employed. High-quality carbon steel, alloy structural steel, and stainless heat-resistant steel are used to make them. These metals are rolled hot (expansion, extrusion), or cold (drawing).

2. Chemical composition of alloy steel pipe/tube

3. Mechanical properties of alloy steel pipe/tube

alloy steel pipe/tube is a crucial component of structural engineering because of its great strength, hardness, and resistance to corrosion. Alloy steel has a longer service life and comparatively superior wear and high-temperature resistance than regular steel. Alloy steel excels in producing some mechanical parts that are lightweight, high-strength, high-durability, and employed in high-temperature and high-pressure conditions due to its relatively good toughness and plasticity.

The high strength of alloy steel

Due to the presence of certain alloying elements, alloy steel has higher yield and tensile strengths than regular carbon steel. One of the most crucial metrics for assessing the effectiveness of alloy steel devices is its strength index. Due to its great strength, alloy steel is frequently utilized in the automotive, aerospace, and aviation industries.

The high wear resistance of alloy steel

The alloy elements in alloy steel can be used in different proportions to increase the hardness and wear resistance of alloy steel. These alloying elements can form high-hardness compounds in steel, thereby increasing the hardness and wear resistance of alloy steel. This high wear resistance makes alloy steel widely used in engineering machinery, mining equipment, ships, and other fields.

High toughness of alloy steel

Alloy steel's high toughness is a reference to its strong anti-fracture and anti-brittleness, or how difficult it is to break under force and load. Steel alloy is frequently used in the production of machinery, the oil industry, shipbuilding, and other industries. Among these, ship safety has significantly increased.

High-temperature resistance of alloy steel

Alloy steel alloy components may keep their mechanical properties at high temperatures and exhibit good high-temperature stability. Alloy steel can be utilized in high-temperature situations such as aerospace engines, stoves, and other sectors that require great stability in such environments since it can keep mechanical attributes like strength, hardness, and wear resistance there.

4. Physical properties of alloy steel pipe/tube

Density, thermal conductivity, linear expansion coefficient, and other characteristics of alloy steel are physical characteristics. Alloy steel has a lower heat conductivity and a lower linear expansion coefficient than regular steel, but it has a higher density and a proportionally smaller degree of expansion.

5. Specifications of alloy steel pipe/tube

Being a trustworthy alloy steel pipe/tube manufacturer and supplier, Shanghai Yinggui Metal Pbaructs Company aims to make manufacturing easier for our business partners. Shanghai Yinggui Metal offers 3120, 3150, 4130, 4140, 4340, 5120, 5140, 6150, 8620 etc.

6. Applications and characteristics of alloy steel pipe/tube

1. High strength

The high strength of alloy steel is one of its key characteristics. To offer alloy steel great durability and strength, high-temperature quenching, tempering, and normalizing operations are typically used. Due to this, alloy steel is frequently used in industries that involve significant loads, such as transportation, construction, and other industries.

2. High toughness

The ability of a material to retain its original shape despite external impact and deformation is referred to as toughness. Because alloy elements are added to steel in the right proportions, alloy steel offers great toughness. These components can strengthen the steel's structural integrity and increase its toughness, which increases the alloy steel's resistance to strain.

3. High wear resistance

Alloy steel's great wear resistance is mostly due to the addition of hardness elements like tungsten, molybdenum, etc. These substances make alloy steel more durable and stronger by raising its hardness. Due to its excellent wear resistance, alloy steel is crucial in industries including mining and mechanical processing.

4. Corrosion resistance

Due to the addition of corrosion-resistant alloy elements like molybdenum and chromium to the steel base, alloy steel is resistant to corrosion. These compounds have the ability to coat the steel surface with a shield that will protect it from acidic or alkaline liquids. As a result, alloy steel is frequently utilized in the shipbuilding and chemical industries, among other things.

5. Good heat resistance

Due to the insertion of thermally robust alloying elements like tungsten, molybdenum, etc. into the steel, alloy steel has good thermal strength. These components give alloy steel remarkable high-temperature resistance capabilities by allowing the steel to maintain its mechanical properties unchanged at high temperatures. As a result, alloy steel has crucial uses in high-temperature environments, including the production of gas turbines and aerospace engines, among others.

Main uses of alloy steel

1. Machine tool processing: Alloy steel has been extensively utilized in machine tool processing, including vehicle frames, cutting tools, and fixtures, due to its good cutting capabilities and hardness. 2. Manufacturing of automobiles: Parts like engine pistons and connecting rods, transmission gears and shafts, etc. frequently employ alloy steel. Due to its great strength, resistance to wear, and durability, alloy steel has better performance and a longer service life. 3. Aerospace industry: Due to its low specific gravity, high heat resistance, and high strength, alloy steel is widely employed in the aerospace industry. Turbine blades, shafts, and engine valves can all be produced with it. 4. Petrochemical sector: The superior qualities of alloy steel can significantly lengthen the service life and increase the reliability of equipment in the petrochemical industry. For instance, alloy steel is used to make vessels, pipe fittings, and valves for equipment used in everything from petrochemical facilities to oil refineries.

7. Main alloy steel product brand list