1. It is all stainless iron, and SUS420** is cheaper. SUS430 has the characteristics of corrosion resistance, mechanical properties and thermal conductivity, but it is brittle at room temperature, and has stainless properties in atmosphere, water vaporizer and other media, but the stainless property is insufficient when the medium contains high chloride ions.
2. Stainless steel with austenite and ferrite structures accounting for about half each. What is SUS420 or SUS430? Stainless steel or stainless iron Both are stainless iron, SUS420** is cheaper.
3. SUS430 is a chromium-based stainless steel, which has good corrosion resistance, which is worse than that of nickel-based stainless steel, but it has low performance and good machinability, and can partially replace SUS304 (nickel-based stainless steel), which is typical. SUS420 is a Japanese stainless steel grade, of which SUS420J1 is equivalent to 2Cr13 in China; SUS420J2 is equivalent to 3CR13 in China.
4. What is SUS420 or SUS430? Stainless steel or stainless iron Both are stainless iron, SUS420** is cheaper. SUS430 has the characteristics of corrosion resistance, mechanical properties and thermal conductivity, but it is brittle at room temperature, and has stainless properties in atmosphere, water vaporizer and other media, but the stainless property is insufficient when the medium contains high chloride ions.
5. Standard: SUS416 is martensitic stainless steel, commonly known as stainless iron, with certain corrosion resistance, and the domestic grade is Y1CR13, which is the best steel grade in stainless steel.
1. SUS420JI Japanese grade corresponds to domestic steel 2CR13. 2Cr13 is a martensitic stainless steel with magnetism, good hardness, and preheating for welding. Austenitic stainless steel electrode for Q235 welding does not need to be preheated, welded, and a small current is used.
2. SUS420J is the national standard 2Cr13SUS420J is the national standard 3Cr13SUS420F is the national standard Y3Cr13SUS30 is the national standard Y1Cr18Ni9, and the American Standard 303 can be checked in the "Chinese and Foreign Metal Materials Manual". This article is shared here, I hope it will be helpful to you.
3. SUS440C The steel is martensitic stainless steel, with higher carbon content than 3Cr13 steel, so the strength and hardness are higher than 3Cr13 steel, and other properties are similar to 3Cr13 steel, but the weldability is poor, and it is usually not used as a welding material for the manufacture of surgical and medical toolsSUS440C stainless steel imported from Japan is used to manufacture bearing parts that work in corrosive environments and non-lubricating strong oxidation.
4. What material is SUS420 equivalent to in China? SUS420JI Japanese grade corresponds to domestic steel 2CR13. 2Cr13 is a martensitic stainless steel with magnetism, good hardness, and preheating for welding.
Austenitic stainless steel electrode for Q235 welding does not need to be preheated, welded, and a small current is used.
5. SUS420J is equivalent to China's material (what does SUS420J2 represent) Shenzhen Bosheng 420 stainless steel strip CR quenching state of 13 stainless steel strips with high hardness CR corrosion resistance is better. For flat leaves. 420J2 (3Cr13 stainless steel strip) stainless steel strip has a higher hardness than 420 stainless steel strip after quenching. For knives, nozzles, seats, valves and rulers.