Galvanized Steel Strand, 1” (37 Strands)
Norm: ASTM A475 – Standard Specification for Zinc-Coated Steel Wire Strand
Dimensional Characteristics
Nominal Conductor Diameter : 1” (25.40 mm)
Number of Strands : 37
Nominal Diameter of Steel Strands: : 0.143” (3.63 mm)
Approximate Weight : 2,057 lb./1000 ft (3,065 kg/km)
Stranding Lay (unless otherwise specified) : Left Lay
Mechanical Characteristics
Common Grade
Minimum Breaking Strength of Strand : 28,300 lbf (125.885 kN)
Minimum Elongation (24” or 610 mm) : 10%
Siemens-Martin Grade (SM)
Minimum Breaking Strength of Strand : 46,200 lbf (205.508 kN)
Minimum Elongation (24” or 610 mm) : 8%
High Strength Grade (HS)
Minimum Breaking Strength of Strand : 71,900 lbf (319.827 kN)
Minimum Elongation (24” or 610 mm) : 5%
Extra High Strength Grade (EHS)
Minimum Breaking Strength of Strand : 102,700 lbf (456.832 kN)
Minimum Elongation (24” or 610 mm) : 4%
Galvanization Characteristics
Nominal Diameter of Steel Strands : 0.143” (3.63 mm)
Minimum Weight of Coating Zinc of Uncoated Wire Surface
• Class 1 – 0.40 oz/ft² (122 g/m²)
• Class A – 0.90 oz/ft² (275 g/m²)
• Class B – 1.80 oz/ft² (549 g/m²)
• Class C – 2.70 oz/ft² (824 g/m²)
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