Alloy Steel F91 Flanges Manufacturer

Astec Tubes is the globally recommended manufacturer, supplier, and exporter of the very good quality of wider ranges of Alloy Steel F91 flanges. Our AS F91 collar flanges are having very good quality, high tensile strength, and rugged construction, excellent resistance to general corrosion, flawless finishes, resistance to chloride SCC and sulfuric acid. Type F91 lap joint flanges are having a chromium content of about 20-14% and it can be thus used at the temperature to 1725-1850 deg F. AS plate flanges are having temperature ranges wherein resistance to the general corrosion is quite essential. Slip-on flanges are showing very good resistance to the atmospheric condition and few chemicals and water. Flat face flanges are widely used in the AS flanges family.

We as a customer-focused dealer to meet all our esteem patrons’ demands are providing these Alloy Steel F91 flanges at different sizes, standards, dimensions, specifications, classes, face types. It is too manufactured and offered to our clients based upon the application requirements or as per the product specifications our clients give to us. The benefit of our complete ranges of flanges is the long service life, clean finishes, low maintenance, etc.

AS F91 threaded flanges and AS F91 spectacle blind flanges are supplied normally in tempered, normalized or tempered & quenched conditions. AS F91 welding neck flanges are giving very good services wherein resistance to general corrosion is quite essential.

The industry standards that our offered ranges of Alloy Steel F91 flanges are confirming are ANSI, ASME, EN, BS, and DIN, etc. It can be collected from us at different classes like 2500#, 1500#, 900#, 600#, 400#, 300# and 150#. Certain applications where these flanges are used to a greater extent are petrochemicals, pharmaceuticals, oil & gas industry, food processing, seawater equipment, chemical industry, specialty chemicals, pharmaceutical industry, heat exchangers, condensers, power generations, pulp & paper industry.

The testing is done on all our produced ranges of Alloy Steel F91 flanges for checking how good the strength is. The tests are intergranular corrosion tests, hardness tests, PMI testing, pitting resistance tests, etc. The TC provided are EN 10204/3.1b, third party test report, radiography test report, and raw material certificates, etc.