stainless steel flanges

Duplex Stainless Steel Pipe for Nuclear Power  Cooling Water System As a clean energy, nuclear power is a major contributor to global carbon emissions reduction, and it can play a greater role in the future. Duplex stainless steel pipe for cooling water system is the future. The key factor for the safe operation of nuclear power plants is the cooling water piping system. This complex system contains thousands of feet of pipes with diameters ranging from large to small, and its function is to provide reliable water supply for the cooling of nuclear power plant equipment. There is usually a non-safety-level operating system and a safety-level emergency system. Non-safety-grade piping systems must provide sufficient cooling water for normal cooling of nuclear power equipment. The safety-level system must provide sufficient cooling water to keep the reactor under control and shut down safely in an emergency. The piping materials used in these systems must be resistant to corrosio...

European Union Terminated Anti-dumping Investigations On Products From China According to a report from China Trade Remedy Information Network on July 21, the European Commission issued an announcement on the 17th that as the applicant withdrew the lawsuit, the Commission decided to terminate anti-dumping investigations on cast iron products originating in China and not implement anti-dumping measures. It is reported that on December 10, 2016, the European Commission announced that it initiated an anti-dumping investigation on cast iron products originating in or imported from China, and made a final ruling on January 30, 2018, deciding to impose on the products involved in the case 15.5%～38.1% of anti-dumping expenses. Later, on December 18, 2019, an anti-dumping investigation was initiated against Chinese cast iron products. However, with the announcement issued by the European Union on the 17th, the case finally came to an end. In fact, the EU has repeatedly implemented an...

What are Nickel? Ferronickel? Nickel Pig Iron? Nickel-based Alloys? Through this article, KAYSUNS, the  stainless steel pipe fittings supplier  will introduce to you what nickel, nickel iron, nickel pig iron and nickel-based alloys are, their characteristics, uses, etc. Nickel Ni(NO3)2·6H2O Nickel is a transition metal element, element symbol Ni, located in group VIII of the fourth period, atomic number 28. Nickel is mainly used in the fields of steel, nickel based alloys, electroplating and batteries, and is widely used in various military manufacturing industries such as aircraft and radar, civil machinery manufacturing and electroplating industries. Nickel is one of the important raw materials for stainless steel. Nickel consumption in China's stainless steel industry accounts for more than 80% of primary nickel consumption and more than 2/3 globally. Ferronickel An alloy of iron and nickel with a nickel content of 15% or more (mass fraction) and less than 80...

Purpose of heat treatment of titanium and titanium alloys Reduce residual stress of heat treatment of titanium generated during the manufacturing process (relieve stress) Produces the best combination of ductility, workability and dimensional and structural stability (annealing) Increas strength (solution treatment and aging) Optimize special properties such as fracture toughness, fatigue strength and high temperature creep strength In order to obtain selected mechanical properties, various types of annealing treatments (for example, single annealing, double annealing and recrystallization annealing) as well as solution treatment and aging treatment must be carried out. Stress relief and annealing can be used to prevent preferential chemical attack in certain corrosive environments, prevent deformation (stabilization treatment) and adjust the metal for subsequent forming and manufacturing operations. Response to heat treatment & Alloy types The response of titanium and...

This week, the domestic TP316L stainless steel seamless pipe prices showed an overall upward trend, and the raw material end declined Affected by heavy rains in many southern provinces this week, river water levels have skyrocketed, and supply of 316L stainless steel seamless pipes have rebounded, that's no a good news for  stainless steel pipe fittings supplier . The increase in stocks has limited the price of TP316L  stainless steel seamless pipes  in the short term. Short-term inventory is difficult to quickly consume due to the impact of heavy rains. The market trend of supply of 316l stainless steel seamless pipes depends on the description of each variety: Futures : On the whole, there are signs of a high-level correction in the short-term futures, but it is a normal technical adjustment after the previous rise. It is expected that the goods in the next cycle may weaken first and then strong, and the operation will mainly focus on the appropriate increase of ...

Sinosteel Passed The Classification Society Certification Bureau Veritas Recently, SINOSTEEL STAINLESS STEEL PIPE TECHNOLOGY CO., LTD. (Sinosteel) officially passed the French classification society audit and obtained the French classification society certification. This marks that Sinosteel's standardized and standardized production in the field of marine stainless steel pipes has reached the international leading level, and it is another important milestone after the company has obtained the qualification of China Classification Society (CCS) certification. About French SC Founded in 1828,  French Classification Society  is one of the world’s leading ship survey service agencies and a founding member of the International Association of Classification Societies (IACS), dedicated to preventing risks and improving safety and efficiency for ship and marine engineering projects . It has strict requirements on the quality management system, product processing technology, ...

There have been three generations of duplex stainless steel The development of duplex stainless steel has a history of nearly 90 years, and the ferrite phase and the austenite phase each account for 50% of the duplex stainless steel structure. The development of duplex stainless steels began in the 1930s, at the time to solve the problem of intergranular corrosion of high-carbon austenitic stainless steels. duplex stainless steel 2205 Duplex stainless steel has 3 generations now: The first generation : represented by the Type 329 stainless steel developed in the United States in the 1940s, it is widely used in heat exchanger pipes of nitric acid plants. In the mid-1960s, Sweden developed the 3RE60 duplex stainless steel (00Cr18Ni5Mo3N) designed to improve resistance to chloride corrosion fracture, but because of its high carbon content, it is generally used for casting and forgings. Second generation : Since the 1970s, with the popularization and development of seco...

This Is The Second Fuel Leak In Norilsk Nickel Group This Year The Russian Norilsk Nickel reported that the Norilsktransgaz pipeline belonging to the Norilsk Nickel Group has fuel leak during the aviation fuel transfer near the village of Tukhard on the Gydanskii tundra. Russia's Largest Spills The company said in a media statement that the oil spill did not pose a threat to the health of residents in the area, and the crew had taken measures to recover the leaked fuel. Emergency services are also on site. According to Nornickel, the leak occurred around 11:15 am on Sunday, July 12, 2020. Preliminary data showed that nearly 44.5 tons of fuel were leaked during the depressurization process, which lasted about 15 minutes. Norilsktransgaz is conducting an internal investigation into the incident and has submitted some information to the Russian Ministry of Emergency Situations. This is the second time Nornickel has reported a fuel leak to the Arctic in less than two mo...

Surface roughness is very important for most surfaces involved in sliding contact. This is because factors such as the original rate of wear and sustained nature are highly dependent on this characteristic. These surfaces are generally load-bearing surfaces, and the roughness needs to be marked to ensure the suitability of the intended use. Definition  of  Surface Roughness Surface Roughness (SR) is the roughness of surface in our daily measurement, which can be understood as the unevenness of fine pitch and tiny peaks and valleys in the process of processing products. It is usually defined as the tiny distance (wave distance) between two peaks or two trough fingers. In general, the wave distance is within 1mm or less, and it can also be defined as the measurement of micro-profiles, commonly known as micro-error value . We generally evaluate that there will be a baseline for roughness. The highest point above the baseline is called the peak point, and the lowest point...