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Engineering Machinery Manufacturing
Description:
Engineering machinery manufacturing encompasses a wide range of machinery, including agricultural machinery, construction machinery, mining machinery, and lifting machinery. These machines operate in harsh environments and require materials with high strength, excellent wear resistance, and good machinability to ensure long-term durability and high efficiency.
Relevant Steel Types and Common Grades:
– High-Strength Structural Steel
– Grades: Q460D, Q690D, S355MC
– Abrasion-Resistant Steel
– Grades: AR400, AR500, NM400, NM500
– Gear Steel
– Grades: 20CrMnTi, 42CrMo4, 18CrNiMo7-6
Construction Industry
Description:
The construction industry involves extensive use of steel structures in projects such as highways, bridges, and infrastructure development. These projects require steel with high strength, corrosion resistance, and excellent weldability to ensure the safety and durability of the structures.
Relevant Steel Types and Common Grades:
– High-Quality Carbon Structural Steel
– Grades: Q235B, Q345B, S235JR, S355JR
– Alloy Structural Steel
– Grades: 40Cr, 35CrMo, 42CrMo
– Weathering Steel
– Grades: Q355NH, Q450NQR1
Tool and Mold Making
Description:
Tool and mold making involves the production of tools and molds used in various manufacturing processes. This includes cold-work mold steel, hot-work mold steel, and plastic mold steel. These steels need to have high hardness, wear resistance, heat resistance, and good machinability to withstand the demanding manufacturing processes.
Relevant Steel Types and Common Grades:
– Cold-Work mold Steel
– Grades: Cr12MoV, D2, SKD11
– Hot-Work mold Steel
– Grades: H13, 4Cr5MoSiV1, SKD61
– Plastic Mold Steel
– Grades: P20, 718, NAK80
Automative Manufacturing
Description:
The automotive manufacturing industry uses a variety of high-strength, lightweight, and corrosion-resistant steels to ensure the safety, economy, and environmental performance of vehicles. These steels are widely used in the body, chassis, and engine components of vehicles.
Relevant Steel Types and Common Grades:
– High-Strength Low-Alloy Steel
– Grades: Q550D, Q690D, S700MC
– Carbon Tool Steel
– Grades: 50, T8, T10
– Alloy Tool Steel
– Grades: Cr12, 9SiCr, 5CrMnMo
Shipbuilding
Description:
Shipbuilding requires the use of a large amount of high-strength and corrosion-resistant steel to ensure the long-term safe operation of ships in marine environments. These steels need to have good welding performance and fatigue resistance.
Relevant Steel Types and Common Grades:
– Shipbuilding Steel
– Grades: AH36, DH36, EH36
– Weathering Steel
– Grades: Corten-A, Corten-B
– High-Strength Structural Steel
– Grades: S355NL, S460NL
