Marine Steel Technical Knowledge Base

EN 10083-1 is a European standard that specifies the technical delivery conditions for non-alloy and alloy steels for quenching and tempering. Steel 34Cr4 is suitable for mean loaded parts and mean heat-treatment sections in vehicle manufacturing, engine and machine engineering (e.g. transmission parts, shafts, axles), Lowest working temperature -25 °C.

EN 10083-1 Grade 34CrMo4 alloy steel grade exhibits good hardenability, high strength, and excellent toughness. It is commonly used in the manufacturing of components that require exceptional mechanical properties after the quenching and tempering process. Applications include gears, shafts, piston rods, and other heavily loaded parts.

EN 10083-1 Grade 34CrNiMo6 is suitable for high loaded parts (also large forged parts) with high heat-treatment sections and favorable toughness properties in aircraft and heavy-vehicle construction, machine engineering (e.g. propeller shafts, connecting rods, transmission shafts). Lowest working temperature -40 °C.As a bright steel product it is used in the form of bars, bright, straight, in different conditions (see DIN EN 10277).

EN 10083-1 Grade 34CrNiMo6 is a specific grade of steel specified in the EN 10083-1 standard. This grade falls under the category of alloy special steels for quenching and tempering.mechanical properties, hardness values, and other relevant characteristics. The standard ensures consistent quality and enables proper processing and utilization of the steel in various industries.

EN 10083-1 Grade 42CrMoS4 alloy steel grade with high strength, toughness and hardenability. The addition of sulfur improves machinability but may slightly reduce overall mechanical properties compared to grades without sulfur. It is commonly used in applications that require excellent mechanical properties, such as gears, shafts, and other components subjected to high stress and wear.

EN 10083-3 Grade 27MnCrB5-2 alloy steel grade with good hardenability, strength and wear resistance. It is commonly used in applications that require high surface hardness and improved mechanical properties, such as gears, shafts, and other components subjected to high stress and wear.

ASTM A724 Grade A is primarily used in the fabrication of welded pressure vessels for various industries such as chemical processing, oil and gas, and power generation. It is essential to ensure proper welding procedures and post-weld heat treatment to achieve the desired properties and avoid potential issues like brittle fracture.

ASTM A240 Grade 304LN is classified as an austenitic stainless steel with low carbon content, which provides excellent corrosion resistance and favorable mechanical properties. The designation "LN" indicates a reduced nitrogen content compared to standard grade 304.

ASTM A240 Grade 316L is an austenitic stainless steel known for its excellent corrosion resistance, especially in aggressive environments. The "L" in the grade designation signifies low carbon content, which enhances resistance to sensitization and intergranular corrosion.

ASTM A240 Grade 316LN is an austenitic stainless steel with low carbon content and nitrogen addition, which enhances its resistance to sensitization and intergranular corrosion. This grade offers excellent corrosion resistance, high strength, and good toughness.