What grade is UNS S31803?
UNS S31803 is a duplex grade with a ferritic-austenitic microstructure. The alloy consists of around 40-50% ferrite in the annealed condition. The duplex microstructure has the high strength of the ferritic grades whilst retaining the corrosion resistance of the austenitic grades.
What is UNS S32205 material?
Duplex stainless 2205 (UNS S32205) is a chromium-nickel- molybdenum-nitrogen stainless steel. UNS S32205 has high strength and corrosion resistance at temperatures up to 316°C.
What is UNS S31254 material?
NAS 185N (SUS 312L, UNS S31254) is a high corrosion resistant austenitic stainless steel with a high nickel, high chromium, high molybdenum alloy design, and provides excellent corrosion resistance in severe corrosion environ- ments such as high temperature seawater.
What is UNS S31803 material?
Material to UNS S31803 is described as a duplex stainless steel with a microstructure of 50:50 austenite and ferrite.
What material is S31803?
Duplex stainless steels
Duplex stainless steels are extremely corrosion resistant, work hardenable alloys. Their microstructures consist of a mixture of austenite and ferrite phases. As a result, duplex stainless steels display properties characteristic of both austenitic and ferritic stainless steels.
What is the difference between UNS S31803 and UNS S32205?
When speaking of 2205 steel, it generally refers to S31803 or F51, while UNS S32205 or F60 conforms to ASTM 2205 adopts its higher corrosion resistance range, that is, UNS S32205 requires higher Chromium and Nitrogen content, thus guaranteeing better corrosion resistance.
Is UNS S31254 Super duplex?
254SMO (UNS S31254, ASTM F44, 1.4547) is a so-called super austenitic stainless steel. By increasing the molybdenum content to 6%, it achieves a pitting resistance equivalent number (PREN) > 43, which is similar to that of a super duplex stainless steel (SDSS).
What is 6Mo material?
6Mo (UNS S31254) is a super austenitic stainless steel with a high level of molybdenum and nitrogen, providing high resistance to pitting and crevice corrosion as well as high strength compared with conventional austenitic stainless steels such as 316L.
What is the difference between S31803 and S32205?
S32205 has slightly higher minimum requirements for chromium, molybdenum and nitrogen, but is still within the chemical composition range of S31803. This grade was developed to address the potential loss of corrosion resistance and toughness in the heat affected zone (HAZ) of certain S31803 welds.
What is UNS S32750?
Super Duplex stainless like S32750, is a mixed microstructure of austenite and ferrite (50/50) which has improved strength over ferritic and austenitic steel grades.
Is S31803 the same as 2205?
Generally, UNS S31803 has been solely designated to the Duplex 2205® grade. More recently, it has been available complying with the higher corrosion resistant composition UNS S32205.
What is UNS S32760?
UNS S32760 is a duplex stainless steel especially designed for service in aggressive chloride-containing environments and has additions of W and Cu compared to UNS S32750. It has very good resistance to localized corrosion and stress corrosion cracking in combination with high mechanical strength.