1. The difference between stainless steel 420J2 and J1
J1 stainless steel: high hardness after quenching, good corrosion resistance (magnetic) 420J2 stainless steel after quenching, higher hardness than 420J1 steel (magnetic). 420 belongs to ferritic stainless steel, which is a type of stainless steel, also known as stainless iron.
The corrosion resistance of 420 stainless steel is not as good as that of 304.
2. It is mostly used in the manufacture of parts that are resistant to atmospheric, water vapor, water and oxidizing acid corrosion. After quenching, 420J2 stainless steel is harder (magnetic) than 420J1 steel. If you want to make a knife or dagger, you should choose 12C27M Sandvik (EN 403) 12C27m is now the preferred steel for hunting knives and fighting knives.
J2CR1SUS420J Characteristics: High hardness after quenching, good corrosion resistance (magnetic). Usage: Tableware (knives), turbine blades 420J3Cr1SUS420J Features: After quenching, the hardness is higher than that of 420J1 steel (magnetic). Uses: Mainly in the field of knife edges, nozzles, valves, plate rulers, and tableware (scissors, knives).
4. The difference between stainless steel 420J2 and J1 The chemical composition of these two steels is almost the same. SUS420J2 has higher strength, hardness and hardenability than 420J1 (2Cr1, but it has corrosion resistance in dilute Hno3 and weak organic acids at room temperature, and the weldability is not as good as 420J1.
2. The difference between 420J2 stainless steel and 420J3 stainless steel
It is a chromium-nickel stainless steel with the addition of molybdenum to improve corrosion resistance and mechanical properties. It is non-magnetic in the annealed state and cannot be hardened by heat treatment. It is one of the most commonly used metals at present. This is especially evident in environments with high sulfuric acid, yanic acid, jia acid, and tartaric acid, where pitting corrosion often persists.
2. The main use or material advantage of manganese steel is in wear-resistant occasions, while the advantage of 420J2 stainless steel (also known as 3CR1 material is in corrosion resistance. Therefore, for occasions that simply require high hardness and no corrosion resistance, of course, it is better to use manganese steel.
* Also low. If there is a considerable requirement for corrosion resistance, it is stainless steel.
The properties and uses of J2 are similar to those of 420J2, but the strength and hardness are higher than those of 420J2 (3Cr1, but the toughness and corrosion resistance are slightly lower. Poor welding performance is usually not used as a welded part.
F stainless steel is based on 420J2 (3Cr1 to increase the flow to more than 15%, phosphorus to 060% or less, thereby improving the easy cutting performance of the diamond, and has 420J2 (3Cr1 atmospheric corrosion resistance and weak acid corrosion resistance, but poor weldability.
What is the difference between J2 stainless steel and 420J3 stainless steel?The performance and use of 420J2 are similar to those of 420J2, but the strength and hardness are higher than those of 420J2 (3Cr1, but the toughness and corrosion resistance are slightly lower. Poor welding performance is usually not used as a welded part.
6. The stainless steel plate is divided into 2B (i.e., cold rolled) and NO1 (i.e., hot rolling) is the division of the thickness of the plate and the difference in surface. It doesn't matter if it's a 2B surface plate or a NO1. The chemical content of the surface plate is the same. What is the difference between stainless steel plate 304J1 and 2B?304J1 is a material in stainless steel plates.