Formulae for theoretical mass calculation 

 

 

Sections Formula x Spec Aluminium Brass Bronze Copper Steel Stainless
Round D x D x 0.002132 0.006675 0.006924 0.00701 0.00616 0.00631
Hollow (D – T) x T x 0.0085 0.026 0.02778 0.028 0.02466 0.0253
Flat W x T x 0.002712 0.00848 0.00882 0.00889 0.00786 0.00804
Square S x S x 0.002712 0.00848 0.00882 0.00889 0.00786 0.00804
Hexagon H x H x 0.00235 0.007344 0.007638 0.00776 0.0069 0.006963