Galvanized Steel Strand, 5/16” (7 Strands)
Norm: ASTM A475 – Standard Specification for Zinc-Coated Steel Wire Strand
Dimensional Characteristics
Nominal Conductor Diameter : 5/16” (7.94 mm)
Number of Strands : 7
Nominal Diameter of Steel Strands: : 0.104” (2.64 mm)
Approximate Weight : 205 lb./1000 ft (305 kg/km)
Stranding Lay (unless otherwise specified) : Left Lay
Mechanical Characteristics
Common Grade
Minimum Breaking Strength of Strand : 3,200 lbf (14.234 kN)
Minimum Elongation (24” or 610 mm) : 10%
Siemens-Martin Grade (SM)
Minimum Breaking Strength of Strand : 5,350 lbf (23.798 kN)
Minimum Elongation (24” or 610 mm) : 8%
High Strength Grade (HS)
Minimum Breaking Strength of Strand : 8,000 lbf (35.586 kN)
Minimum Elongation (24” or 610 mm) : 5%
Extra High Strength Grade (EHS)
Minimum Breaking Strength of Strand : 11,200 lbf (49.820 kN)
Minimum Elongation (24” or 610 mm) : 4%
Galvanization Characteristics
Nominal Diameter of Steel Strands : 0.104” (2.64 mm)
Minimum Weight of Coating Zinc of Uncoated Wire Surface
• Class 1 – 0.30 oz/ft² (92 g/m²)
• Class A – 0.80 oz/ft² (244 g/m²)
• Class B – 1.60 oz/ft² (488 g/m²)
• Class C – 2.40 oz/ft² (732 g/m²)
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