According to the characteristics of the two-phase structure, by properly controlling the chemical composition and heat treatment process, the excellent toughness and weldability of austenitic stainless steel are combined with the higher strength and chloride stress corrosion resistance of ferritic stainless steel, making duplex stainless ብረት እጅግ በጣም ጥሩ የመቋቋም ችሎታ, ከፍተኛ ጥንካሬ እና ቀላል ሂደት እና ማምረቻ የሚያመጣ የብረት ዓይነት. Their physical properties are between austenitic stainless steel and ferritic stainless steel, but closer to ferritic stainless steel and carbon steel. The resistance to chloride pitting and crevice corrosion of duplex stainless steel is related to the content of chromium, molybdenum and nitrogen. Its resistance to pitting and crevice corrosion can be similar to that of 316 stainless steel, or higher than that of stainless steel for seawater, such as 6%MO austenitic stainless steel. All duplex stainless steels are significantly more resistant to chloride stress corrosion cracking than 300 series austenitic stainless steels, and their strength is also much higher than austenitic stainless steels, while showing good plasticity and toughness.

1. ከአስፈፃሚው አይዝጌ ብረት ጋር ሲነፃፀር

2) በተለይ ክሎራይድ አከባቢዎችን በሚይዙ አካባቢዎች ውስጥ ለጭንቀት መሰባበር ከፍተኛ የመቋቋም ችሎታ አለው. በዝቅተኛ all all Intody Lockslyme እንኳን ሳይቀር የዲፕሎክ "እንኳን ሳይደለ አሪፍ ውጥረት ከልክ ያለፈ የእሳት አደጋ መከላከያ አረብ ብረት ከሚያስከትለው የቆርቆሮ መሰባበር ከፍተኛ የመቋቋም ችሎታ አለው. Stress corrosion is a prominent problem that ordinary austenitic stainless steel is difficult to solve. 3) The corrosion resistance of the most common 2205 duplex stainless steel used in many media is better than that of ordinary 316L austenitic stainless steel, and super duplex stainless steel has extremely high corrosion resistance. In some media, such as acetic acid and formic acid, it can even replace high-alloy austenitic stainless steel and even corrosion-resistant alloys. 4) It has good local corrosion resistance. Compared with austenitic stainless steel with the same alloy content, its wear corrosion resistance and corrosion fatigue resistance are better than austenitic stainless steel. 5) The linear expansion coefficient is lower than that of austenitic stainless steel, close to that of carbon steel, suitable for connection with carbon steel, and has important engineering significance, such as the production of composite plates or linings.

4) የዌልግስ አፈፃፀም ከመርፌዲክ አይዝጌ ብረት እጅግ የተሻለ ነው. Generally, no preheating is required before welding and no heat treatment is required after welding.

5) የትግበራ ክልል ከ Frithice ከማይዝግ አረብ ብረት የበለጠ ሰፊ ነው.

ትግበራ

በዲፒትክስ ብረት ከፍተኛ ጥንካሬ ምክንያት, የቧንቧን የግድግዳ ወረቀቱን እንደ መቀነስ ያሉ ቁሳቁሶችን ማዳን ይችላል. Take SAF2205 and SAF2507W as examples. SAF2205 is suitable for use in chlorine-containing environments. ይህ ቁሳቁስ ለዘይት ማጣሪያ ወይም ከችሎቶች ጋር የተቀላቀለ ለዘይት ማጣሪያ ወይም ለሌላ የሂደት ሚዲያዎች ተስማሚ ነው. SAF2205 is particularly suitable for heat exchangers that use chlorine-containing aqueous solutions or slightly salty water as cooling media. This material is also suitable for diluted sulfuric acid solutions and pure organic acids and their mixtures. For example: oil pipes in the oil and gas industry: crude oil desalination in refineries, sulfur-containing gas purification, wastewater treatment equipment; cooling systems using slightly salty water or chlorine-containing solutions.