Carbon steel is the primary material of carbon steel flange and end flange connectors, common standards are ASTM A105N (SA105N), ASTM A350 LF2, ASTM A694, DIN 2533 and MSS SP-44. Pressure ratings from class 150 to 2500.
Experienced professionals use the latest methods to carefully construct carbon steel flanges. The provided ranges are tested under strict guidelines and an array of parameters to ensure high-quality products. They are used in all kinds of industries and clients appreciate the efforts put forth by the manufacturing department. Each range is packaged in quality-guaranteed material.
ASTM A105N (SA105N)
This extremely common and mild carbon steel is one of the most common of all. The material is extra tough, meaning it won't break easily and is reasonably priced. This common carbon steel flange is seen in many industries and, with the help of lap joint end rings, are used in stainless steel piping systems.
The SA105N style is offered in 18" to 42" Blind Flanges, Weld Neck, Lap Joint and SLIP-ON, in both classes 150 and 300. They can also be found in different classes and sizes with longer lead times – 12" to 60".
Differences between forged steel flange and cast iron flange
a. Forged steel flange has better performances than cast iron flanges, lower carbon content so is harder to get rusty. Better shape with smooth streamline, higher mechanical strength because of the higher steel structural.
b. Forging process will not make big or uneven brain, cost is higher than cast iron.
c. Forged steel is easy to be cut and can take higher tensile strength.
d. Casting iron could be made to different and complicated profiles, cost lower.
e. Cast iron steel exists air bubble, harmful defects, where forged steel flange don't.
f. Use Centrifugal machine will produce higher precision cast iron flange than normal cast flanges.
g. Forged steel flange could be used in higher pressure pipelines, where cast iron flange only could be used in non-pressure pipelines, otherwise will cause leaking problems.
How to prevent carbon steel flange from rusty
Carbon steel also will be getting rusty, so to prevent from this, there are some solutions:
Electric zinc coated (White or yellow zinc)
Anti-rust painting
Oil Varnished
Chemical composition of ASTM A105N Flange
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