Pier Data Sheets
| Helical Steel Piers | |||
| Shaft Size | 1-1/2″ sq. | 1-1/2″ sq. | 1-3/4″ sq. |
| Galvanization | ASTM A153 | ASTM A153 | ASTM A153 |
| Material Grade | ASTM A576 Grade C-1045 |
ASTM A576 Grade 1530M |
ASTM A576 Grade 1530M |
| Minimum Yield Strength |
45 ksi | 60 ksi | 45 ksi |
| Minimum Tensile Strength |
82 ksi | 110 ksi | 110 ksi |
| Ultimate Torque Capacity |
6,000 ft-lbs | 7,000 ft-lbs | 10,000 ft-lbs |
| Ultimate Capacity (C or T) |
70 kips | 70 kips | 100 kips |
| Working Capacity (C or T) |
35 kips | 35 kips | 50 kips |
| Brackets | ||
| Bracket Type | Standard | Light Duty |
| Galvanization | ASTM A153 | ASTM A153 |
| Ultimate Strength | 60 kips | 15 kips |
| Working Capacity | 30 kips | 7.5 kips |
| Helix Plates | |
| Helix Thickness | 3/8″ & 1/2″ |
| Galvanization | ASTM A153 |
| Material Grade | ASTM A36 |
| Minimum Yield Strength |
36 ksi |
| Minimum Tensile Strength |
36 ksi |
