3120, 4130, 4140, 5140, 6150, 8620 Alloy Steel Sheet Plate Forging

1. What is an alloy steel AISI4140 sheet/plate?

AISI4140 steel plate is an alloy structural steel plate. AISI4140 steel is a low alloy steel containing chromium, molybdenum, and manganese. American Standard grade, which has a high carbon content and a good balance of strength, toughness, wear resistance, impact resistance, and heat treatment capabilities, but poor weldability. Corresponds to domestic 42CrMo.

AISI4140 uses an electric furnace to make steel. It is made from scrap iron. The steel is pure. The steel plate is a flat steel plate that is poured with molten steel and pressed after cooling. It is flat and rectangular and can be directly rolled or cut from wide steel strips. Steel plates are divided by thickness, thin steel plates<8 mm (the thinnest is 0.2 mm), medium-thick steel plates 8~60 mm, and extra-thick steel plates 60~120 mm.

2. Chemical composition of alloy steel AISI4140 sheet/plate

carbon content C: ≤0.38-0.43 silicon content Si: ≤0.15-0.30 manganese content Mn: ≤0.75-1.0 phosphorus content P: ≤0.035 molybdenum content Mo: ≤0.15-0.25 Chromium content of AISI4140 steel plate Cr: ≤0.8-1.1 Iron Content: Balanced

3. Mechanical properties of alloy steel AISI4140 sheet/plate

alloy steel AISI4140 sheet/plate is a crucial component of structural engineering because of its great strength, hardness, and resistance to corrosion. alloy steel AISI4140 has a longer service life and comparatively superior wear and high-temperature resistance than regular steel. alloy steel AISI4140 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 AISI4140

Due to the presence of certain alloying elements, alloy steel AISI4140 has higher yield and tensile strengths than regular carbon steel. One of the most crucial metrics for assessing the effectiveness of alloy steel AISI4140 devices is its strength index. Due to its great strength, alloy steel AISI4140 is frequently utilized in the automotive, aerospace, and aviation industries.

The high wear resistance of alloy steel AISI4140

The alloy elements in alloy steel AISI4140 can be used in different proportions to increase the hardness and wear resistance of alloy steel AISI4140. These alloying elements can form high-hardness compounds in steel, thereby increasing the hardness and wear resistance of alloy steel AISI4140. This high wear resistance makes alloy steel AISI4140 widely used in engineering machinery, mining equipment, ships, and other fields.

High toughness of alloy steel AISI4140

alloy steel AISI4140'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 AISI4140

alloy steel AISI4140 alloy components may keep their mechanical properties at high temperatures and exhibit good high-temperature stability. alloy steel AISI4140 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 AISI4140 sheet/plate

Tensile strength ob (MPa): ≥655MPa Yield strength as (MPa): ≥415 MPa Bulk modulus - 140 GPa Hardness (Brinnell) - 197 Hardness (Rockwell C) - 13 Processability – 65

Density, thermal conductivity, linear expansion coefficient, and other characteristics of alloy steel AISI4140 are physical characteristics. alloy steel AISI4140 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 AISI4140 sheet/plate

Being a trustworthy alloy steel AISI4140 sheet/plate manufacturer and supplier, Shanghai Yinggui Metal Pbaructs Company aims to make manufacturing easier for our business partners. Shanghai Yinggui Metal offers 3120, 3150, 4130, AISI4140, 4340, 5120, 5140, 6150, 8620 etc.

6. Applications and characteristics of alloy steel AISI4140 sheet/plate

High strength, good toughness, little deformation after quenching, high creep strength, and lasting strength at high temperatures are all characteristics of the AISI 4140 steel plate. Large gears for locomotive traction, supercharger transmission gears, pressure vessel gears, rear axles, connecting rods, and spring clips are just a few examples of forgings that need higher strength and larger quenched and tempered cross-sections than 35CrMo steel. It can also be used for deep oil well drill pipe joints, fishing tools below 2000m, and bending machine molds, among other things.

1. High strength

The high strength of alloy steel AISI4140 is one of its key characteristics. To offer alloy steel AISI4140 great durability and strength, high-temperature quenching, tempering, and normalizing operations are typically used. Due to this, alloy steel AISI4140 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 AISI4140 offers great toughness. These components can strengthen the steel's structural integrity and increase its toughness, which increases the alloy steel AISI4140's resistance to strain.

3. High wear resistance

alloy steel AISI4140's great wear resistance is mostly due to the addition of hardness elements like tungsten, molybdenum, etc. These substances make alloy steel AISI4140 more durable and stronger by raising its hardness. Due to its excellent wear resistance, alloy steel AISI4140 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 AISI4140 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 AISI4140 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 AISI4140 has good thermal strength. These components give alloy steel AISI4140 remarkable high-temperature resistance capabilities by allowing the steel to maintain its mechanical properties unchanged at high temperatures. As a result, alloy steel AISI4140 has crucial uses in high-temperature environments, including the production of gas turbines and aerospace engines, among others.

Main uses of alloy steel AISI4140

1. Machine tool processing: alloy steel AISI4140 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 AISI4140. Due to its great strength, resistance to wear, and durability, alloy steel AISI4140 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 AISI4140 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 AISI4140 can significantly lengthen the service life and increase the reliability of equipment in the petrochemical industry. For instance, alloy steel AISI4140 is used to make vessels, pipe fittings, and valves for equipment used in everything from petrochemical facilities to oil refineries.

7. Main alloy steel AISI4140 product brand list