Category: ‘Duplex Steel’
UNS S32154 is austenitic 6% molybdenum Super Duplex stainless steel used widely in seawater cooled power plant condensers.
The first high-performance austenitic stainless steel designed specifically to use nitrogen for added cor... Read More...
1) In many of the most common medium of 2205 duplex stainless steel corrosion resistance of 316L stainless steel is better than normal, and super duplex stainless steel with high corrosion resistance, in some medium, such as acet... Read More...
ASTM Specifications
Pipe Smls
Pipe Welded
Tube Smls
Tube Welded
Sheet/Plate
Bar
A790
A790
A789
A789
A240
A276
Mechanical Properties
Specified Tensile Properties ASTM A240
Cold Rolled Plate and ... Read More...
High resistance to chloride stress corrosion cracking
Chloride pitting and crevice corrosion resistance comparable to 316L stainless
Good general corrosion resistance
High strength
Good sulfide stress corrosion resi... Read More...
The corrosion resistance of LDX2101 is generally good, and therefore is suitable for use in a wide range of general-purpose applications and environments. Attributable to its duplex structure, LDX 2101 offers an excellent resi... Read More...
LDX 2101 is a low-alloyed, general purpose lean duplex stainless steel. It possesses properties such as high mechanical strength, similar to that of other duplex steels, and good corrosion resistance. Compared to 300 series stai... Read More...
Delivers twice the high yield strength of standard austenitic stainless steel grades
Superior resistance to general corrosion than standard austenitic stainless steel grades
Higher resistance to stress corrosion cracking t... Read More...
The chemical composition of the duplex steels is balanced to yield relatively equal corrosion resistance in the austenite and ferrite phases, hence the term “duplex” stainless steel refers to the dual austenite/ferrite micro-... Read More...
Duplex stainless steels differ significantly from austenitic stainless steels in the following important respects:
1) Chemical composition
2) Mechanical properties
3) Formability
4) Weldability
5) Machinability
... Read More...
Twice design strength of austenitic and ferritic stainless steels
Wide range of corrosion resistance to match application
Good toughness down to minus 80 deg C but not genuine cryogenic applications
Particular resistance... Read More...
The attractive combination of high strength, wide range of corrosion resistance, moderate weldability would seem to offer great potential for increasing the market share of duplex stainless steels. However, it is important to und... Read More...
The range of duplex steels allows them to be matched for corrosion resistance with the austenitic and ferritic steel grades. There is no single measure of corrosion resistance. However, it is convenient to use the Pitting Resista... Read More...
To understand how duplex steels work, first compare the composition of two familiar steels austenitic 304 (1.4301) and ferritic 430 (1.4016).
Structure
Grade
EN Number
C
Si
Mn
P
S
N
Cr
Ni
Mo
Ferri... Read More...
The idea of duplex stainless steels dates back to the 1920s with the first cast being made at Avesta in Sweden in 1930. However, it is only in the last 30 years that duplex steels have begun to “take off” in a significant way... Read More...
Duplex stainless steels are very nomal now. They are being supplied by all the major stainless steel mills for a number of reasons:
Higher strength leading to weight saving
Greater corrosion resistance particularly str... Read More...
304|304L|304H|316/316L|316Ti|317L|321/321H 309S | 310S | 347/347H | S32205/S31803 | S32304|S32750 | S32760 | 904L | 405 | 410 | 410S
Supe... Read More...