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HY-industry Tip: How to choose high quality superalloy.（HY industry- Technical Center internal data）

Compendium：

2507, Monel 400(UNS N04400), Invar, Inconel601, Inconel718, c276, Inconel625 are the most popular special steels on the market, but do you know his characteristics in the face of all kinds of stainless steel? Do you know what kind of steel can you use to maximize his performance?
If the thickness of the steel plate is not enough, it is easy to bend, which will affect the production of decorative panels. If the thickness is too large, the steel plate is too heavy, which not only increases the cost of the steel plate, but also brings difficulty in operation. At the same time, the remaining amount of stainless steel plate processing or use should be considered. The thickness of the copper plate is not absolutely uniform, but the thickness of the same steel plate is to be as uniform as possible. Generally, the medium-sized saw blade has a thickness tolerance of 0.05-o.15 mm. If the requirements are too strict, the grinding costs will also increase. Generally, it is a steel plate with large tensile strength and hardness, and the greater the resistance to mechanical damage, the longer the durability of use, but the processing cost of the grinding boring is also relatively high.

After finishing analysis, HY-industry summarizes the most popular stainless steel superalloy raw materials on the market for your reference:

2507 is a ferritic-austenitic (duplex) stainless steel that combines the most beneficial properties of many ferritic and austenitic steels. Due to the high chromium and molybdenum content of the steel, it has a very high Good resistance to pitting corrosion, crevice corrosion and uniform corrosion. Two-way microstructure ensures that the steel has high resistance to stress corrosion cracking and high mechanical strength.
Monel400 is the corrosion-resistant alloy with the largest amount, the most versatile and excellent comprehensive performance. The alloy has excellent corrosion resistance in hydrofluoric acid and fluorine gas media, and excellent corrosion resistance to hot concentrated alkali liquor. It is also resistant to corrosion by neutral solutions, water, sea water, the atmosphere, organic compounds, etc. An important feature of this alloy is that it generally does not produce stress corrosion cracking and has good cutting performance.
Invar(4J36) , also referred to as Invar, that is, iron alloy containing 35.4% nickel, has a very low coefficient of thermal expansion at room temperature (between -20 ° C ~ 20 ° C, the average value of about 1.6 × 10-6 / ° C), known as the king of metal, is an indispensable structural material for precision instruments and equipment.
Inconel 601 alloy is a nickel-chromium alloy with excellent oxidation resistance at 1200 °C. The inconel 601 alloy produces a dense oxide layer that prevents oxidation in harsh cyclic thermal environments. The alloy has excellent high temperature strength and can maintain its characteristic toughness under long-term high temperature environment. Inconel 601 alloy also has good corrosion resistance under oxidizing conditions. However, it is not recommended to use inconel601 alloy in a strong reducing and sulfurizing environment.
Inconel718 alloy is a precipitation hardening type nickel-chromium superalloy containing antimony and molybdenum. It has high strength, good toughness at 700 °C and resistance in high and low temperature environments. Corrosive. The supply state may be a solution treatment or a precipitation hardening state.
Hastelloy C276 belongs to nickel-molybdenum-chromium-iron-tungsten-based nickel-based alloy. It is the most resistant of modern metal materials. Mainly resistant to wet chlorine, various oxidizing chlorides, chloride solutions, sulfuric acid and oxidizing salts, have good corrosion resistance in low temperature and medium temperature hydrochloric acid. Therefore, in the past 30 years, in the harsh corrosive environment, such as chemical, petrochemical, flue gas desulfurization, pulp and paper, environmental protection and other industrial fields have a wide range of applications.
Inconel 625 alloy exhibits excellent corrosion resistance in many media. Excellent resistance to pitting, crevice corrosion, intergranular corrosion and erosion in chloride media. It has good resistance to inorganic acid corrosion, such as nitric acid, phosphoric acid, sulfuric acid, hydrochloric acid, etc., and also has alkali and organic acid corrosion resistance in the oxidation and reduction environment. Effective against chloride ion reductive stress corrosion cracking. It hardly corrodes in seawater and industrial gas environments, and has high corrosion resistance to seawater and salt solutions, as well as at high temperatures. No sensitivity during welding. It is resistant to carbonization and oxidation in static or cyclic environments and is resistant to chlorine-containing gases.