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  • Shaanxi Tonghui Steel Co., Ltd.
  • E-mali: sxthsteel@sxth-group.com
  • Tel: +86-29-89636557
  • Add:1st Building Of Jinqiao International, Intersection Between Shuangyong Road And Sandou Road, Sanqiao St. Office, Fengdong New City, Xi'an, Shaanxi, China (Mainland)
  • Something about Stainless Steel Sheet, Plate, Strip and Coils
    Jul 11, 2018

    1. Brief Introduction 

    Stainless steel sheet / plate is a typical sheet metal formed by an industrial process into thin, flat pieces. They are widely used in building construction, medical table, decoration, home appliance, auto mobile and air conditioning systems, etc. In fact, the terms "sheet" and "plate" are confusing. Both of them are flat-rolled metal products of some minimum thickness and width arbitrarily dependent on the type of metal. The thicknesses of stainless steel plates are commonly equal to or larger than 5 mm(3/16") with widths larger than 250 mm(10"). Stainless steel sheet has a thickness under 5 mm(3/16") while its width is equal to or larger than 600 mm(24"). The flat piece with thickness under 5 mm(3/16") while its width is under 600 mm(24") is considered as stainless steel strip. Stainless steel sheet can be supplied in flat pieces or coiled types. The stainless steel coils are formed by running a continuous stainless steel sheet or strip through a roll slitter.
    Stainless steel sheet possesses untarnished surface appearance and corrosion resistance as its main advantages. It can be welded and cut without damaging its corrosion resistance. Compared with galvanized steel sheet, stainless steel sheet is very tough, but it can still be readily worked in sheet metal workshop. 

    2. Materials Selection  

    HBmetals supplies a wide material selection of stainless steel sheets / plates/strip/coils, including: SS 201, SS 202, SS 301, SS 304, SS 304L, SS 310S, SS316, SS316L, SS 316Ti, SS 317, SS 317L, SS 321, SS 347, SS 409, SS409M, SS 410, SS 410S, SS 420, SS 430, SS 904L, UNS S31803, UNS S32205, UNS S32550, UNS S32750, etc.  

    3.  Production Process 

    Nowadays, there two major way to produce stainless steel sheet / plate/strip/coils : Hot Rolling and Cold Rolling.  

    4. Surface Finishes  

    Surface finish plays an important role in any specification of stainless steel. The surface finishes can be categorized as per two standards: ASTM A480/A480M and EN 10088-2.

    According to ASME A480/A480M, stainless steel sheet, strip and plate have several types of surface finish: 

    No.1 Finish: Hot-rolled, annealed and descaled.

    No.2D Finish: Cold-rolled,dull finish.

    No.2B Finish: Cold-rolled,bright finish.

    Bright Annealed Finish: A bright cold-rolled finish retained by final annealing in a 

                                          controlled atmosphere furnace.

    No.3 Finish: Intermediate polished finish, one or both sides.

    No.4 Finish: General purpose polished finish, one or both sides.

    No.6 Finish: Dull satin finish, tampico brushed, one or both sides.

    No.7 Finish: High luster finish.

    No.8 Finish: Mirror finish.

    According to EN 10088-2, surface finish of stainless steel sheet/strip/plate can be divided as per its fabrication process:

    Hot rolled: 1U, 1C, 1E, 1D

    Cold rolled: 2H, 2C, 2E, 2D, 2B, 2R, 2Q

    Special finishes: 1G or 2G, 1J or 2J, 1K or 2K, 1P or 2P, 2F, 1M, 2M, 2W, 2L, 1S or 2S.

    5. Gauge Standards  

    There are several different gauge standards for stainless steel sheet/plates/strip/coils, such as Manufacturers' Standard Gauge, Standard Decimal Gauge, US Standard Gauge, Birmingham Gage, British Standard Gauge. Gauge sizes, which were developed based on the weight of the sheet/plates/strip/coils, are numbers that indicate the thickness of a stainless steel sheet/plates/strip/coils, with a higher number referring to a thinner sheet/plates/strip/coils. However, the use of Gauge is discouraged by ISO. The metric unit mm is recommended in practice.