Alloy Steel Flanges 6" 300# FF BL Flange Hastelloy C276 UNS N10276

Blind flange, also known as blind flange, is actually called blind flange. It is a connection form of flange. It's actually a flange without a hole in the middle.

One of its functions is to block the end of the pipeline, and the other is to facilitate the removal of sundries in the pipeline during maintenance. In terms of sealing effect, it has the same effect as head and pipe cap. However, there is no way to disassemble the head, and the flange blind plate is fixed with bolts, which is very convenient for disassembly. Flange blind plates are made of carbon steel, alloy steel, stainless steel, plastic and so on

C-276 Hastelloy belongs to nickel molybdenum chromium iron tungsten nickel base alloy, which is one of the most corrosion resistant modern metal materials. It is mainly resistant to wet chlorine, various oxidizing chlorides, chloride solutions, sulfuric acid and oxidizing salts. It has good corrosion resistance in low and medium temperature hydrochloric acid. Therefore, in the past three decades, it has been widely used in harsh corrosive environment, such as chemical industry, petrochemical industry, flue gas desulfurization, pulp and paper, environmental protection and other industrial fields.

Various corrosion data of Hastelloy C-276 alloy are typical, but they can not be used as specifications, especially in unknown environment. Only after testing can materials be selected. There is not enough Cr in Hastelloy C-276 alloy to resist corrosion in strong oxidizing environment, such as hot concentrated nitric acid. This alloy is mainly produced for the chemical process environment, especially in the presence of mixed acid, such as the discharge pipe of flue gas desulfurization system.

The mechanical properties of Hastelloy alloy are very outstanding. It has the characteristics of high strength and high toughness, so it is difficult to machine. Moreover, its strain hardening tendency is very strong. When the deformation rate reaches 15%, it is about twice that of 18-8 stainless steel. There is also a medium temperature sensitization zone in Hastelloy alloy, and its sensitization tendency increases with the increase of deformation rate. When the temperature is high, Hastelloy is easy to absorb harmful elements, which reduces its mechanical properties and corrosion resistance.

Q1: Are you trading company or manufacturer ?

A: We are factory.

Q2: How long is the delivery ?

A: 15-30 working days

Q3: Do you provide samples ? is it free or extra ?

A: Yes, we could offer the sample for free charge but do not pay the cost of freight.

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