List of malleable steel floor flange

Important detail of 1/2" npt black malleable iron thread flange

Malleable cast iron – It is cast as white cast iron, then ‘malleabilized’ (i.e., heat treated to impart ductility to the brittle material). The micro structure consists of ferrite and particles of free graphite. This cast iron encompasses a form of graphite called temper carbon. This form of graphite is produced by the heat treatment of white cast iron. When a white cast iron is heated for an extended period of time (about 60 hours) at a temperature of 960 deg C, the cementite decomposes into austenite and graphite. By slow cooling from 960 deg C, the austenite transforms into ferrite or pearlite depending on the cooling rate and the diffusion rate of carbon.

Attribute definition list of malleable steel floor flange

Why need carbon when produce the malleable cast iron ?

Carbon is a graphitizing element,Silicon promotes graphitization,When the content is high, it reacts,Sulfur hindered graphitization,Manganese also hindered the graphitization,so manganese also is important . Phosphorus generally has little effect,but the content is too high, will reduce the toughness of pipe fittings.

25 Years Experience
Leyon steel also known as “China malleable”. For these 25 years, Leyon is always focusing on research and development of malleable iron fittings, grooved fittings, grooved couplings, tubing and valves that are mainly applied in such industries as fire protection, water supply, construction industry, municipal engineering and petrochemical.

Currently, Leyon is one of the largest pipe fittings manufacturers in the world, and is dedicated to provide secure, reliable and cost effective pipe fittings, with large products capacity, superior quality, strong R&D strength and first class service.

Our main production facilities include Sinto automatic molding line, automatic molding sand mixers from Germany, cupola furnaces, electric furnaces and more.

Leyon is also ISO 9001:2008-, BSI-, CCC-, UL- and FM-certified, furthermore, we were named as the Shanxi Famous brand.

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We look forward to cooperating with you in the near future. If you are interested in our products, please contact us. We expect to realize a win-win situation in our cooperation with your company.