About MEGLOBE Stainless steel

STAINLESS STEEL

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What is Stainless Steel?

Stainless steel is a corrosion-resistant alloy of iron, typically containing at least 10.5% chromium by weight. The addtion of chromium forms a passive layer of chromium oxide on the surface, which prevents futther comosion of the underlying metal.In addition to chromium, stainless steel may also contain other elements such as nickel, molybdenum, manganese, and carbon, which enhance its properties,including strength, ductility, and resistance to various forms of corrosion.
Stainless steel is known for its durabilty, aestic appeal, and abilty to withstand extreme temperatures and pressuressures,There are several grades of stess steel, categorinto famlies sustentic, femic, and mansiic, each with its own speetic prosessise

The most common grades of stainless steel are
grouped into five main categories:

  • Austenitic : These are the most widely used grades,known for their excellent corrosion resistancea and good formability
    304 / 316 / 321
  • Ferritic : These grades are magnetic and generally have good resistan to stress corrosion cracking.
    430/436/409(L)
  • Martensitic : these grades are known for their high strength and hardness but are less corrosion-resistant
    410 / 420 / 440C
  • Duplex : These grades combine aspects of austenitic and ferritic stainless steels,offering a stronger alternative with good corrosion resistance.
    2205

Symbol of Surfaces

  • NO.1

    The No.1 finish, a product of hot rolling, annealing and descaling, manifestsas a rough, dull and irregular surface. Typically favored for industrial uses,it is utilized in equipmnent designed for high-temperature service, checker plate, etc.

  • 2B

    The 2B finish, a variant of the 2D finish, is distinguished by its smooth surface and moderate reflectivity. Its production involves a final light cold rolling pass with polished rolls.

  • BA

    BA or Bright Annealed, is a finish achieved through heat-treating in a controlled atmospheric furnace. While it is smooth and highly reflective, it might have minor cloudiness and imperfections. Polishing BA can result in a Super Mirror (No.8), which has a higher degree of brightness.

  • NO.3/NO.4

    This finish, also known as grinding finish, is achieved through the use of 150/180/240/320 grit abrasive, with higher grit numbers yielding finer grinding lines. It can be produced by wet or dry grinding and is often referred to as brushed, directional or satin finish.

  • SB Soctch Brite

    The Scotch Brite finish is a semi-dull grind finish with uniform grain, produced with abrasives finer than those used for No.4/No.5. It features smooth, soft, and exquisite grains, low reflectivity and unidirectional texture.

  • NO.8 / Mirror

    The No.8 finish is a high gloss, polished finish with a high level of reflectiveness, achievable via 2B and BA finishes. Our super mirrors (stainless steel mirrors) are produced through a wet chemical polishing process, differing from dry polishing that can only achieve a No.7 finish.