Mine I beam

• Description
• Parameters

• Mining i beam: mining i beam is commonly referred to mine steel, it is a type of mine steel, mainly used for the support of mine tunnel, flange width, height and thickness.

  Basic information:

  1, standard: YB/T24-1986/2

  2, size specification: 

  
  
  Annotation: 1, The outer edge of the i-steel shall not be more than 2.4% of the width of the legs.

  2, The bending of the steel shall not be greater than 1.0mm.

  3, The eccentricity of the steel shall not exceed 2% of the width of the legs. Degree of eccentricity: =b2-b1/2.

  4, The bending degree of the steel shall not be greater than 3mm, total curvature must not exceed 0.3 percent.

  3, mark and component

  
  4, Mechanical and Property
  
  
  The difference between common i beam steel and mine i beam: the retio of section width and height is reduce, web thickness is increase, the flange is thick and inclined, this make the Wx/Wy of the steel section reduce, better able to adapt the underground conditions. The mine i beam steel produced in our country has been standardized, there are no.9, no.11, no.12, the usual one is no.11.

  The standard is different

  The atandard of common i beam steel: GB/T706-2008(PRC standard)

  Technical conditions of steel trapezoidal rigid brackets for mining industry: MT194-2000(Standards of the coal industry in the People's Republic of China)

  Tel: +86 199 3712 3680
  Email: zxminesupport@zxsteelgroup.com

  
  

  
  

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