30Cr3moa** form: plate, rod, tube, steel strip, wire, forging, forging pipe, forging plate, forging bar, round bar, plate, thin plate, seamless pipe, welded pipe, round bar, wire, steel plate, disc round, strip.
1. Introduction to 30cr3moa.
30Cr3MoA is a low-alloy medium-carbon steel that is mainly composed of elements such as iron (Fe), chromium (Cr), molybdenum (Mo), etc. It has excellent strength, wear resistance and fatigue strength, as well as certain toughness and weldability, so it is widely used in many fields.
Second, the main technical parameters of 30Cr3MOA.
1.Chemical composition: According to the standard, the chemical composition of 30Cr3MOA is: carbon (C) content is 027-0.34% with a silicon (Si) content of 017-0.37%, manganese (Mn) content of 050-0.80%, phosphorus (p) content does not exceed 0035%, sulfur (s) content does not exceed 0035%, chromium (CR) content is 08-1.10%, molybdenum (mo) content of 015-0.25%。
2.Mechanical properties: The mechanical properties of 30Cr3MoA in the annealed state are: yield strength (S) is not less than 785MPa, tensile strength (B) is not less than 980MPa, and elongation (δ5) is not less than 12%. After heat treatment, its mechanical properties will be further improved.
3.Heat treatment performance: 30Cr3MoA can improve its mechanical properties through heat treatment. Common heat treatment methods include normalizing, quenching, tempering, etc. Normalizing can increase the hardness and strength of the material, while tempering can reduce the brittleness of the material.
4.Special properties: Due to the addition of molybdenum element in 30Cr3MoA, it has good wear resistance and corrosion resistance. At the same time, the alloy steel also has certain high-temperature resistance, which is suitable for components working in high-temperature environments.
3. Application fields of 30Cr3MOA.
1.Oil & Gas Industry: 30Cr3MOA is corrosion-resistant and high-temperature resistant, and is often used in the manufacture of oil well casing, tubing and oil extraction equipment.
2.Machinery manufacturing industry: 30Cr3MOA has good toughness and weldability, and is usually used to manufacture tools, molds, bearings and mechanical parts, etc.
3.Automobile manufacturing industry: The strength and wear resistance of 30Cr3MOA make it an important material in the automobile manufacturing industry, and is often used in the manufacture of engine parts, car beams, etc.
4.Shipbuilding: The corrosion and wear resistance of 30Cr3MOA makes it suitable for various fittings and components in the shipbuilding industry.
Conclusion: This paper gives a comprehensive introduction to 30Cr3MoA, including its chemical composition, mechanical properties, heat treatment properties and application fields. It is hoped that through this article, readers can have a deeper understanding of the characteristics of this alloy steel and its application value in various fields.