ASTM A1011 Q235 Galvanized Steel Grating Inquiry | 25x5mm 30x5mm Stair Bearing Bar Requirements

• Type

  Galvanized
  Warranty

  More Than 5 Years
• Feature

  Water Resistant, Durable, Anti-Corrosion, Fire Resistant
  Shape

  Square
• After-sale Service

  Online Technical Support, On-Site Installation, Onsite Training, Onsite Inspection, Free Spare Parts, Return and Replacement, Other
  Weight

  2kg
• Chemical Composition

  /
  Length

  Customized
• Alloy Or Not

  Is Alloy
  Secondary Or Not

  Non-Secondary
• Project Solution Capability

  graphic design, 3D model design, total solution for projects, Cross Categories Consolidation
  Application

  Office Building, Outdoor
• Design Style

  Modern
  Model Number

  19-W-4, 15-W-2, 30/100, 40/50, 60/100 and All
• Material

  Galvanized Steel, Low Carbon Steel, Mild Steel, Stainless Steel
  Color

  Other
• Product Name

  Galvanized Steel Grating
  Standard

  GB/JIS/UK/EN/DIN
• Surface Treatment

  Hot DIP Galvanized, Painting, Self Colour / Untrea
  Grating Size

  30X100, 40X100, 30X50, 40X50 Others
• Transport Package

  Shipped in Containers or LCL Shipment
  Origin

  Made in China
• Payment terms

  30%TT Advance + 70% Balance
  Certificate

  Support
• Package

  Standard or customized packaging

Specify a complete bearing bar and support drawing before selecting grating for stair requirements.

Material and bars

The title requests Q235 and 25x5 or 30x5 mm bars while the detail lists several steel materials. Confirm the actual designation, bar orientation and dimensions instead of treating title references as verified certified material or a finished stair geometry.

Grid and thickness

The actual thickness menu contains several ranges that do not define bearing bar height. Agree the structural meaning of the selected option, grid pitch, panel width, length, support span and fixing details on a drawing.

• Actual grade and standard
• Bearing bar size and orientation
• Grid pitch and panel drawing
• Support span and fixing
• Surface and stair inspection

Assembly evidence

Hot dip galvanizing, painting and untreated alternatives are described. Confirm actual finish and tests; premium, fire-resistant and durable wording establishes no slip rating, stair load capacity or certified A1011 compliance.