Metline Industries is India's most trusted manufacturer and exporter of carbon steel buttweld fittings, carbon steel forged fittings, carbon steel swage nipples, and carbon steel branch outlet fittings. Our stock includes carbon steel pipe fittings in a complete range of sizes and pressure ratings. Carbon steel, also called plain carbon steel, is steel where the main alloying constituent is carbon. The AISI defines carbon steel as: “Steel is considered to be carbon steel when no minimum content is specified or required for chromium, cobalt, columbium [niobium], molybdenum, nickel, titanium, tungsten, vanadium or zirconium, or any other element to be added to obtain a desired alloying effect; when the specified minimum for copper does not exceed 0.40 per cent; key product divisions : pipe fittings manufacturers, ss round bars manufacturers , steel pipes suppliers, steel plates suppliers