9405035211 / 7709237783
STEEL MATERIAL SPECIFICATIONS MINIMUM Yield Strength

Primary Member

Portal Frames/Builtup Frames

ASTM A 570 G 50/IS

2062:E250/E350 or Equivalent

Y S 345 mpa

Secondary Members

Cold Formed

HR steel

Galvanised Steel

ASTM A 570 or IS 1079/10748

ASTM A 653 MSS Gr 34,

coating 150/180 GSM

Secondary Members

Cold Formed

HR steel

Galvanised Steel

Roof Sheeting & Panels

Bare & Colour Coated

ASTM A 792M Grade D AZM150

Y S 245 or 550 mpa

Valley Gutter

Galvanised Steel

IS 513 Grade O Or D
Y S 240 mpa

Mezzanine Deck Panels

Galvanised Steel

ASTM A 653 SS Grade 55,


Zink Coating 180 gsm

Y S 345 mpa

Diagonal Bracing Members

Rods round bar

ASTM A 36M / IS2062 or Equivalent

Y S 245 mpa

High Strength Bolts (Rafter)

ASTM A 325M Grade 8.8, or Equivalent
UTS 830 mpa
Anchor Bolts
ASTM A 36M / IS2062 or Equivalent
Y S 245 mpa
Galvanised M S Bolts

ASTM A 307 / IS1367 or Equivalent

Grade 4.6 Hot dip

Galvanised /plating yellow colour

Y S 245 mpa