PROFILED SHEETS – STEEL
SPECIFICATIONS OF STEEL
Steel profiled sheets shall be either of Aluzinc coated (55% Aluminium, 45% Zinc Alloy) OR Zinc
coated.
Alloy and Temper
The base material shall conform either to ASTM A653 / ASTM A653M Commercial Steel or
Structural Steel (subject to avaiability) or Zincalume coated conforming to ASTM A792M.
Mechanical Properties
Ultimate Tensile Strength - Min 350 N/mm2
Yield Strength - Min 250 N/mm2
Modulus of Elasticity - 200000 N/mm2
Co-efficient of Linear Thermal Expansion - 13 X 10-6 per deg C
Fire Property
Steel is classified as a non-combustible material.
Surface Finishes
Mill Finish - This is the hot dip galvanized finish with Regular Spangle or Minimized Spangle or
Skin Passed and Chromated surface.
Polyester Coated - Polyester is an economical long life coating with external coating of 17 - 22
microns and internal 5-8 microns service coat. External coating will be available in both RAL & BS
colour shades. Internal coating is standard grey colour but on request can be supplied in other RAL
shades.
PROFILED SHEET - EK 38 / 200 STEEL