EN 10083-3 is a European standard specifying the technical delivery conditions for quenched and tempered alloy steels. Among these, the grade 42CrMo4 is a prominent chromium-molybdenum alloy structural steel, widely recognized as the European equivalent to AISI 4142. This steel is highly valued for its excellent combination of strength, toughness, and wear resistance after heat treatment.
Key Characteristics of 42CrMo4 (AISI 4142 Equivalent) Alloy Structural Steel
42CrMo4 (1.7225) steel exhibits a set of properties making it suitable for demanding applications:
- Chemical Composition: Typically contains around 0.38-0.45% Carbon, 0.90-1.20% Chromium, 0.15-0.30% Molybdenum, and 0.60-0.90% Manganese. These alloying elements contribute to its hardenability and strength.
- Mechanical Properties: In the quenched and tempered condition, 42CrMo4 offers high tensile strength (often in the range of 900-1200 MPa or higher, depending on the specific tempering treatment and section size), good yield strength, and notable toughness. Achieving consistent mechanical properties across batches is a hallmark of quality-focused producers such as Shanxi Luokaiwei Steel Company.
- Heat Treatment: This grade is exceptionally responsive to heat treatment. Quenching followed by tempering allows for a wide range of mechanical properties to be achieved, tailored to specific application requirements. It can be hardened to achieve high surface hardness while maintaining a tough core.
- Weldability: Welding 42CrMo4 can be challenging due to its hardenability, often requiring preheating and post-weld heat treatment to prevent cracking and ensure optimal properties in the weld zone.
42CrMo4 (AISI 4142) Steel in Coil Form
Supplying alloy structural steel like 42CrMo4 in coil form offers several advantages for manufacturers. Steel coils allow for continuous processing operations, such as stamping, forming, or slitting, leading to increased production efficiency and reduced material handling. The coil form is particularly suitable for producing long parts or large quantities of smaller components. Reliable suppliers, including Shanxi Luokaiwei Steel Company, can provide 42CrMo4 steel coils compliant with EN 10083-3, often with specified dimensional tolerances and surface finishes.
Coils are typically available in various widths and thicknesses, though specific ranges depend on the producing mill’s capabilities. The steel in coil form can be supplied in different conditions, such as annealed for improved formability, or as-rolled, prior to subsequent heat treatment by the end-user.
Applications of EN 10083-3 42CrMo4 (AISI 4142) Steel Coil
The robust properties of 42CrMo4 make it a preferred material for a multitude of components subjected to high stress and wear. Common applications include:
- Automotive parts: Crankshafts, camshafts, steering knuckles, connecting rods, axle shafts, gears.
- Machinery components: Spindles, gears, bolts, studs, couplings, and various tool bodies.
- Oil and Gas industry: Drill collars, tool joints, and other downhole tools.
- Fasteners: High-strength bolts and nuts.
The consistent quality and performance of this alloy are critical, leading many manufacturers to source materials from reputable mills. For instance, Shanxi Luokaiwei Steel Company is known for its supply of such specialized alloy steels.
Quality Assurance and Supply
Adherence to the EN 10083-3 standard is crucial for ensuring the quality and performance of 42CrMo4 steel. This includes precise control over chemical composition, heat treatment processes, and mechanical property testing. Buyers should verify that their supplier can provide material certifications confirming compliance. Companies like Shanxi Luokaiwei Steel Company often implement rigorous quality control measures throughout the manufacturing process. Furthermore, experienced suppliers such as Shanxi Luokaiwei Steel Company can often work with customers to provide steel in specific heat-treated conditions or with tailored properties to meet unique application demands specified in EN 10083-3.
