304 (UNS S30400, 1.4301) stainless steel is a universal stainless steel, it is widely used to make equipment and machine parts that require good comprehensive performance. In order to maintain the inherent corrosion resistance of stainless steel, the steel must contain more than 18% chromium and more than 8% nickel content. 304 stainless steel is a grade of stainless steel produced in accordance with the American ASTM standard. The most important elements in 304 stainless steel are Ni and Cr, but they are not limited to these two elements. The specific requirements are stipulated by the product standards. The common judgment in the industry is that as long as the Ni content is greater than 8% and the Cr content is greater than 18%, it can be considered as 304 stainless steel.

Nitronic 60 stainless steel is a low-cost material that is resistant to wear and abrasion. Its corrosion resistance is better than 304 stainless steel, chloride pit corrosion resistance is better than 316 stainless steel, and its room temperature yield strength is twice that of 304 and 316. At the same time, Nitronic 60 has good high temperature oxidation resistance and low temperature impact resistance. Because Nitronic 60 stainless steel plates and other profiles have excellent wear resistance and scratch resistance at room temperature and heating environments, they are widely used in valve stems, valve seats, valve cores, nuts, bolts, screens, chain drives, latches, and gaskets , Rolling bearings, pump parts, including wear rings and rotors.

Nitronic 50 (XM-19) is an austenitic stainless steel. Its corrosion resistance and strength are unmatched by commercial materials at the same price. The corrosion resistance of Nitronic 50 is better than 316, 316L, 317, 317L and other materials, and the room temperature yield strength is as high as twice that of these grades. The yield strength of high-strength Nitronic 50 (HS) can reach 3-4 times that of 316 stainless steel. In addition, Nictronic 50 has good mechanical properties in both warming and low temperature environments. Unlike most austenitic stainless steels, Nitronic 50 will not be magnetized when cold-worked or cooled to sub-zero temperatures. Nitronic 50 is widely used in petroleum, petrochemical, chemical, fertilizer, nuclear fuel recycling, paper, textile, food processing and maritime industries.

431 stainless steel belongs to American standard martensitic stainless steel, the implementation standard: ASTM A276/A276M-2017 431 stainless steel is a kind of martensitic stainless steel with a good combination of strength and toughness. It has good corrosion resistance to aqueous solutions of oxidizing acids, most organic acids and organic salts. 431 stainless steel plate is generally suitable for the manufacture of nitric acid, acetic acid production and light industry, textile and other industries that require both toughness and corrosion resistance of shafts, piston rods, pumps and other parts.

17-4 PH (AISI 630, UNS S17400) is a registered trademark of AK Steel in the United States, that is, 630 precipitation hardening martensitic stainless steel. The alloy is characterized by high strength and good corrosion resistance, and the recommended operating temperature is below 300°C. 630 is hardenable stainless steel. Through different heat treatment, different hardness can be obtained, and its tensile strength can reach up to 1100~1300MPa. Among all hardenable stainless steels, 630 has the best corrosion resistance. Its corrosion resistance is comparable to 304 in most environments, and is generally better than 400 series stainless steel. In petrochemical, food industry, papermaking and other industries, the corrosion resistance of 630 is the same as that of 304L. In the marine environment, 630 is easily corroded by seawater and is only suitable for offshore platforms.

Alloy 317L (1.4438,AISI 317L,UNS S31703) alloy is austenitic stainless steel based on molybdenum. Compared with conventional chromium-nickel austenitic stainless steel such as 304 alloy, 317L stainless steel has stronger resistance to chemical corrosion. In addition, compared with conventional stainless steel, 317L stainless steel has higher ductility, stress corrosion resistance, compressive strength and high temperature resistance. It is low carbon grade or L grade, this grade has anti-sensitization performance during welding and heat treatment. Mechanical Properties: YS (Mpa) ≥ 176, TS (Mpa) ≥ 480, EL (%) ≥ 40, Hv ≤ 200 Chemical Composition: carbon (C) ≤ 0.030, manganese (Mn) ≤ 2.00, nickel (Ni) 11.0 ~ 15.0, silicon (Si) ≤ 1.00, phosphorus (P) ≤ 0.045, sulfur (S) ≤ 0.030, chromium (Cr) ) 18.0～20.0, molybdenum (Mo) 3.0～4.0

SAF2507(1.4410/UNS S32750) is a ferritic-austenitic (duplex) stainless steel, which combines many of the most beneficial properties of ferritic steel and austenitic steel, because the steel contains high chromium and molybdenum Therefore, it has excellent resistance to pitting corrosion, crevice corrosion and uniform corrosion. The two-way microstructure ensures that the steel has a high resistance to stress corrosion cracking, and the mechanical strength is also high. 2507 dual-phase steel density: 8.03g/cm3, melting point: 1300-1390 ℃, magnetic: none Heat treatment: heat preservation between 1000-1052℃ for 1-2 hours, rapid air cooling or water cooling. Mechanical properties: tensile strength: σb≥795Mpa, yield strength σb≥550Mpa: elongation: δ≥15%, hardness ≤310 (HB)

2205（UNS S32205，EN 1.4462）stainless steel plates are divided into cold-rolled plates and hot-rolled plates. Common size Thickness: 3.0mm-10.0mm, width has two kinds of width: 1800mm and 2000mm. Length: 6000mm or more (can be cut according to customer requirements). 2205 stainless steel alloy is a duplex stainless steel composed of 21% chromium, 2.5% molybdenum and 4.5% nickel-nitrogen alloy. Conventional size thickness: 0.5mm-40.0mm, width: 1000mm, 1219mm, 1500, 1800mm, 2000mm, 2500mm, etc.; length: generally cold rolled 2000mm or 2438mm, hot Rolled to 6000mm.

904L stainless steel plate is divided into: hot-rolled stainless steel plate, cold-rolled stainless steel plate, and finish-rolled stainless steel plate. Super austenitic stainless steel (904L stainless steel plate) is a highly alloyed austenitic stainless steel with very low carbon content. It has good corrosion resistance in dilute sulfuric acid and is specially designed for harsh corrosion conditions. 904l stainless steel plate has the characteristics of strong corrosion resistance, mechanical properties and high density.

Cold-rolled steel sheets are made from hot-rolled steel coils. After pickling treatment to remove the oxidized skin, cold-rolled steel sheets are processed. 316/316L stainless steel plate has the following advantages: 1. Beautiful surface and diversified use possibilities. 2. Good corrosion resistance and longer durability than ordinary steel. 3. High strength, so the possibility of using thin plates. 4. High temperature oxidation resistance and high strength, so it can resist fire 5. Normal temperature processing, that is easy to plastic processing. 6. Because there is no need for surface treatment, it is simple and easy to maintain. 7. Clean, high finish. 8. Good welding performance.

Hot rolled 304 stainless steel sheet, namely hot-rolled steel plates and steel strips, commonly known as hot plates, are usually written in the word "hot-rolled", such as hot-rolled plates, but they all refer to the same kind of hot-rolled plates. Refers to steel plates with a width greater than or equal to 600mm and a thickness of 0.35-200mm and steel strips with a thickness of 1.2-25mm. Because stainless steel hot-rolled steel plates have excellent properties such as high strength, good toughness, easy processing and forming, and good weldability, they are widely used in manufacturing industries such as ships, automobiles, bridges, construction, machinery, and pressure vessels. Hot rolled steel can often be identified by the following characteristics: • Scaled surfaces, the remnants of cooling from extreme temperatures. • Slightly rounded edges and corners for plate products • Slight distortions, where cooling may leave slightly trapezoidal forms

Stainless steel strip refers to the thin steel plate supplied in coils, also called strip steel. According to the process, it is divided into hot rolling and cold rolling, and there are also ordinary steel strips and high-quality steel strips. There are many types of stainless steel strips! More versatile! Thickness: 0.02mm-4mm, width: 3.5mm-1550mm, non-standard can be customized! The stainless steel strip is simply an extension of the ultra-thin stainless steel plate. It is mainly a narrow and long steel plate produced to meet the needs of different industrial sectors for the industrial production of various types of metal or mechanical products.