Thus these Hastelloy B2 Flanges are considered to be well suited to be used for most chemical process applications in an as-welded condition. Due to lower carbon content in the alloy, there is reduced precipitation of carbides as well as other phases in the heat-affected weld zones, which in turn ensures uniform resistance to corrosion in the flange.
These Hastelloy B2 Slip On Flanges can be machined using all the traditional machining methods. More than most other metals of similar chemistry, our Hastelloy B2 Spectacle Blind Flanges offers superior protection against powerful chemical corrosion and comes with one of the best high ¨C temp strengths of any steel.
These Hastelloy B2 Weld Neck Flanges should not be used in oxidizing media or where oxidizing contaminants are available in reducing media.
Our Hastelloy B2 Lap Joint Flanges are also being offered in customized sizes and shapes to our customers. The extremely low carbon and silicon content of these Hastelloy B2 Socket Weld Flanges reduces precipitation of carbides and other phases in the heat ¨C affected zone of welds and ensures adequate corrosion resistance even in the welded condition.
Our Hastelloy B2 Ring Joint Type Flanges is not recommended for use in the presence of ferric or cupric salts as these salts may cause rapid corrosion failure. Ferric or cupric salts of these Hastelloy B2 Nippo Flanges may perhaps develop when hydrochloric acid comes in contact with iron or copper.
Hastelloy B2 Flanges come under the ASTM B564 specification with sizes ranging from ? inches to 60 inches under different standards.
The flanges are produced through different techniques as the ASTM B564 Hastelloy B2 Threaded Flanges, screwed flanges, forged flanges and plate flanges. The threaded flanges are used with threaded pipes and the female threaded flanges connect to the male threaded pipe ends.
The Hastelloy UNS N10665 Pipe Flanges come under the ANSI, ASTM, DIN and other international standards with various dimensions and pressure classes.
According to the flange size, wall thickness and diameters, the pressure classes vary from class 150 through class 2500. There are also different faced flanges such as the ring type joint Alloy B2 RTJ Flange, raised face flange and flat face flange.
Each of them have structural differences. These flanges are made up of a nickel, chromium, molybdenum alloy that has 50% nickel 14% chromium, 15% molybdenum and carbon, manganese, silicon, sulfur, cobalt, iron and phosphorus in the composition.
There are different types such as the Hastelloy B2 Slip On Flanges , socket weld flanges, and welded neck flanges. These have 790MPa minimum tensile strength, 355MPa minimum yield strength and 40% elongation rate.
Hastelloy C22 flanges have a wide range of usage in different industries. Hastelloy C22 alloys are mostly used in pharmaceutical industries for fittings and tubing, and it also helps to avoid contamination, which is mostly caused by corrosion.
Alloy C22 is one of the most corrosion-resistant alloys available, even outperforming C276 and 625. It is resistant to almost all reducing and oxidizing environments, including strong oxidizers, seawater, and organic acids.
C22 has excellent resistance to chloride-induced localized corrosion, including pitting, crevice corrosion, and stress corrosion cracking.
Hastelloy C-22 (UNS N06022) pipe bends and fittings in stock, allowing for a quick turnaround. Hastelloy C-22 has excellent resistance to aggressive oxidizing aqueous media including wet chlorine and mixtures containing nitric acid or oxidizing acids with chlorine ions.
C22 has excellent resistance to oxidation, carburization, and sulfidation at elevated temperatures. However, C22 should not be used at temperatures above 1250¡ãF due to the possible formation of embrittling phases.
Hastelloy C-22 is identified by the Unified Numbering System (UNS) designation of?N06022. It is a nickel based alloy with high nickel (56%), chromium (22%), and molyddenum (13%).
C22 is typically provided in the annealed condition with a minimum yield strength of 45 ksi. However, C22 can be cold worked to higher strength levels.
Werkstoff’s number 2.4602, Inconel Alloy 22, VDM Alloy 22 and ATI 22 alloy fall under same UNS number.
C22 can be hot worked or cold worked. However, C22 work-hardens rapidly. Therefore, cold working must often be performed in stages with intervening anneals. Parts should be annealed after cold working.
C-22 is used in severely corrosive media with high chloride and temperature applications such as buffer solutions, active pharmaceutical ingredients (API), fabric softeners, cleaning supplies, and fish, soy and chili sauce.
The exceptional corrosion resistance of C22 has promoted its use in many different markets wherever harsh environments are encountered, including the chemical process, pharmaceutical, food processing, oil and gas, power generation, and the paper industries.
C-22 is a great alternative when superaustenitic stainless steels (AL-6XN, 904L, and 254 SMO) and duplex stainless steels (2205 and 2507) will not withstand extremely aggressive media. This is because it is a nickel-chromium-molybdenum-tungsten alloy with better overall resistance to uniform and localized corrosion than any other Ni-Cr-Mo alloy, like Hastelloy C-276, C-4, and alloy 625.
Hastelloy C22, also known as alloy C22, is a versatile austenitic nickel-chromium-molybdenum-tungsten alloy with enhanced resistance to pitting, crevice corrosion and stress corrosion cracking.
The high chromium content provides good resistance to oxidizing media while the molybdenum and tungsten content give good resistance to reducing media.
This nickel steel alloy also has excellent resistance to oxidizing aqueous media including wet chlorine and mixtures containing nitric acid or oxidizing acids with chlorine ions.
Other corrosives Hastelloy C-22 has resistance to are oxidizing acid chlorides, wet chlorine, formic and acetic acids, ferric and cupric chlorides, sea water, brine and many mixed or contaminated chemical solutions, both organic and inorganic.
This nickel alloy also offers optimum resistance to environments where reducing and oxidizing conditions are encountered in process streams. This is beneficial in multi- purpose plants where such ¡°upset¡± conditions occur frequently.
This nickel alloy resists the formation of grain-boundary precipitates in the weld heat-affected zone, thus making it suitable for most chemical process applications in the as-welded condition.
Alloy C-22 should not be used in service temperatures above 1250¡ã F due to the formation of detrimental phases which form above this temperature.
