Aicmiú Sreang Cruach

De réir crutha trasghearrtha, aicmítear sreanga i gcruthanna cruinne, cearnacha, dronuilleogacha, triantánacha, éilipseacha, cothroma, trapeasóideacha agus Z-. De réir méide, aicmítear sreanga go -fíneáil bhreise (<0.1 mm), thin (0.1-0.5 mm), thin (0.5-1.5 mm), medium (1.5-3.0 mm), thick (3.0-6.0 mm), thick (6.0-8.0 mm), and extra-thick (>8.0 mm). De réir láidreachta, aicmítear sreanga i-neart íseal (<390 MPa), low-strength (390-785 MPa), standard-strength (785-1225 MPa), high-strength (1225-1960 MPa), high-strength (1960-3135 MPa), and extra-high-strength (>3135 MPa).