FLANGE MS 1.1/2"

An MS Flange 1 1/2" BIG refers to a pipe connection component made from Mild Steel (MS) with a nominal pipe size of 1 1/2 inches (40mm NB / Nominal Bore), typically designed under a "heavy" or "big" outer diameter/thickness profile like the ASA 150# (ANSI Class 150) or BS 10 Table E/F industrial standards. The "BIG" designation colloquially indicates a thicker commercial grade or a larger outer plate profile (often between 14mm to 17.5mm thickness) compared to light-duty or thin-sheet variants.

Key Specifications & Description

• Material: Mild Steel (Carbon Steel), commonly forged or plate-cut to commercial grades like IS 2062 Grade A/B.

• Nominal Size: 1 1/2 inch (40 mm).

• Common Pressure Ratings: Typically rated for 150# (Class 150) or standard British tables like Table D/E.

• Physical Variants & Thickness:

 • Available in standard Slip-On (SOW) or Weld Neck variations where the pipe slips inside the rim to be welded.

 • "Big/Perfect" thickness profiles usually specify a rugged 14mm, 16mm, or 17.5mm commercial plate depth to endure elevated mechanical load or piping stress.

• Surface Protection: Usually finished with a black protective paint, anti-rust red oxide coating, or hot-dip galvanization to safely combat environmental corrosion.

• Primary Applications: Widely deployed in oil and gas distribution, industrial water treatment pipelines, chemical processing lines, heavy duty HVAC utility layouts, and general construction setup