

What are Hastelloy flanges?
Hastelloy is a highly corrosive resistance nickel alloy with additional chemical components like molybdenum & chromium. Hastelloy flanges are quite suitable for several highly corrosive operations because of their exceptional resistance to rust in both oxidizing and reducing environments. These flanges are also exceptionally resistant to hydrochloric & sulphonic acids.
These flanges are frequently used in chemical production operations where acidic chlorides, liquids, formic & acetic acids, anhydrides, wet hydrogen chloride, hypochlorite's, iodine mixtures, and phosphoric acid will be utilized due to their ability to withstand some of the harshest medium. For example, both alloys of these materials, particularly at elevated heats, have excellent mechanical properties.
What is the use of Hastelloy weld neck flange?
Situations in which the settings are harsh or crucial require Hastelloy Weld Neck Flange. Increased pressure, high heat and stress swings, low heat, flammable and dangerous substances, and freezing conditions are a few of these circumstances. They have good mechanical qualities under more demanding circumstances.
The flanges are the perfect solution for many industrial operations, including petroleum, medicinal, paper and fabrics, and many more, thanks to their exceptional productivity, weldability, machinability, and moldability qualities. Higher creep-fracture & stress breakage qualities can be found in these Hastelloy flanges. These Hastelloy Flanges are made using the highest quality raw materials to guarantee improved efficiency and low repairing cost.
What are the different types of Hastelloy metal slip-on flange and how do they differ?
Hastelloy alloy slip-on flanges refer to the components that make the slip-on flanges. A slip-on flange's hole dimensions (internal diameter) are wider compared to the linking tube, which enables it to move onto tubing (slip-onto the tube). Because of the decreased weld authenticity caused by the lack of a butt joint weld seen between tubing and the flange, its application is restricted. Slip-on tube flanges are renowned for being simple to setup and using low-cost materials. If Type B or Type C terminals are being operated, one of the additional benefits of such flanges is that this type can also be employed as lap-joint flanges.
How do you select the right type and size of Hastelloy alloy blind flange for your specific application?
The choice of Hastelloy steel Blind Flange must consider several process variables, including working heat and stress, the kind of liquid being transported by the tubing, the flange's type, dimension, stress rating, alloy grade, and standards. This is expected to result in significant toll hikes in these projects and therefore implementation of the same without any delay or protest shall be crucial from a credit perspective.
The operating temperature and tension of the tubing system are a second consideration to consider when choosing the proper flanges substances. The flange gasket would be capable of sustaining the highest tension assumed in the piping; this is often the examine pressure, which might be at least 2 times multiple of the flange rating at room temperature conditions.
How does Hastelloy steel socket weld flange compare with other flange materials in terms of cost, durability, and performance?
In contrast to a socket welded pipe flange, a welded neck pipe flange has a conical base that transfers tensile strain between both the pipe & the pipe flanges more equally. Comparing Hastelloy metal to certain other steel alloys, it is more corrosion resistant.
Hastelloy is mostly composed of Ni, Cr, and Mo, whereas stainless steel is primarily composed of Fe, Cr, and C. Although Hastelloy is more costly than other steel grades, it performs better than other steel alloys. Moreover, it has a longer operating life than other steel grades.
Our associates Manufacturers of Hastelloy Flanges
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
What grade is Haynes Hastelloy threaded flange?
The grades of Haynes Hastelloy threaded flange are made of the material Hastelloy B-3. An alloy of nickel & molybdenum having outstanding heat stability, stress-rust cracking, and cracking tolerance is known as Hastelloy B-3. This material also offers excellent defense against knife-line & thermal-affected zone attacks. Hastelloy B-3's superior HCl acid resistance at all heat and level is its main advantage.