Floating Dock Plastic Pontoon Manufacturers Introduces The Material Requirements Of Anchor Chains
2021年3月23日Nowadays, there are many applications of anchor chain products, especially the demand for marine anchor chains is very large. Today, Floating Dock Plastic Pontoon Manufacturers will take you to understand the materials of marine anchor chains.
First of all, its main material is anchor chain steel, which is hot-rolled round steel or forged round steel used to manufacture electric welded anchor chains for ships. There are two main types of anchor chain steel materials, one is CM490 (M2) and the other is CM690 (M3). Next, let’s take a look at the main characteristics of these two materials: CM490 has medium strength. High plasticity during cold deformation, good low temperature performance, acceptable weldability and machinability. Compared with carbon steel with corresponding carbon content, its hardenability is higher, the critical hardening diameter in oil is 4-15mm; CM690 has medium plasticity during cold deformation, and its machinability and weldability are acceptable, but before welding The parts need to be preheated to above 200°C. Wire drawing, cold heading and heat treatment have good performance and high hardenability. The critical hardenable diameter in oil is 6.5-18mm.
So what is the main difference between these two materials? CM490 has the tendency of overheating, decarburization sensitivity and temper brittleness during heat treatment. This kind of steel has suitable hardenability, after suitable metal heat treatment, the microstructure is uniform sorbite, bainite or very fine pearlite, so it has high tensile strength. CM690 has the advantages of small deformation during the quenching process, but also has overheating, decarburization sensitivity and temper brittleness. This steel has high strength, toughness and wear resistance after being modulated, and the static strength and fatigue strength are also good.
Through the above introduction, Boxing Training Heavy Free Standing Punching Bag Manufacturers hopes that you can simply refer to the content of this article in future use.
First of all, its main material is anchor chain steel, which is hot-rolled round steel or forged round steel used to manufacture electric welded anchor chains for ships. There are two main types of anchor chain steel materials, one is CM490 (M2) and the other is CM690 (M3). Next, let’s take a look at the main characteristics of these two materials: CM490 has medium strength. High plasticity during cold deformation, good low temperature performance, acceptable weldability and machinability. Compared with carbon steel with corresponding carbon content, its hardenability is higher, the critical hardening diameter in oil is 4-15mm; CM690 has medium plasticity during cold deformation, and its machinability and weldability are acceptable, but before welding The parts need to be preheated to above 200°C. Wire drawing, cold heading and heat treatment have good performance and high hardenability. The critical hardenable diameter in oil is 6.5-18mm.
So what is the main difference between these two materials? CM490 has the tendency of overheating, decarburization sensitivity and temper brittleness during heat treatment. This kind of steel has suitable hardenability, after suitable metal heat treatment, the microstructure is uniform sorbite, bainite or very fine pearlite, so it has high tensile strength. CM690 has the advantages of small deformation during the quenching process, but also has overheating, decarburization sensitivity and temper brittleness. This steel has high strength, toughness and wear resistance after being modulated, and the static strength and fatigue strength are also good.
Through the above introduction, Boxing Training Heavy Free Standing Punching Bag Manufacturers hopes that you can simply refer to the content of this article in future use.
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