NXF ASTM B574 ASTM B619 Alloy C-4 /UNS N06455 Pipe Fittings DN15-1200 SCH10-XXS Lap Joint Stub End
Product Description
Alloy C-4 is an austenitic nickel-molybdenum-chromium alloy with a low carbon, silicon, and iron content. This alloy has a significantly lower tendency to form precipitation in the temperature range between 650 and 1,040 °C(1,202 - 1,904 °F), improving its resistance to inter-crystalline corrosion. When machined perfectly, no knife line attack occurs in the heat-affected zones of awelding edge. Alloy C-4 is characterized by: Very good resistance in a broad field of corrosive media, in particular under strongly oxidizing conditions. Excellent resistance to pitting, crevice and stress corrosion.Lap Joint Stub End is a kind of steel butt welded pipe fitting. It is usually the part inside the loose flange. Loose sleeve flanges: loose sleeve flanges commonly known as looping flanges, partial welding ring looping flanges, flanges and butt welding looping flanges. It is often used when the medium temperature and pressure are not high and the medium is highly corrosive. When the medium is corrosive, the part of the flange in contact with the medium (flanged nipple) is a corrosion-resistant high-grade material such as stainless steel and other materials, and the external use of low-grade materials such as carbon steel material flange ring clamp it to achieve sealing.