A588 is a high strength low-alloy steel plate used in structural applications such as bridges and buildings. Its advantage over A572 50 is its “weathering
A588 is a high strength low-alloy steel plate used in structural applications such as bridges and buildings. Its advantage over A572 50 is its “weathering” ability, which provides atmospheric corrosion resistance and ultimately longer life in applications where exposure to elements will be a factor. We generally stock this material as A588 Gr A & B in plate and 606 in sheet.
ASTM A588 Steel Mechanical Properties:
Tensile: 70 ksi min (4” and under), 67 ksi min (4”- 5”) 63 ksi min (Over 5”-8”)
Yield: 50 ksi min (4” and under), 46 ksi min (4”- 5”) 42 ksi min (Over 5”-8”)
Elongation: 16% min in 8” 19% min in 2” (for plates wider than 24”)
ASTM A588 Steel Plates, Grade A Properties:
| Properties | Metric | English | Comments |
| Density | 7.87 g/cc | 0.284 lb/in2 | Typical of ASTM Steel |
| Tensile Strength at Break | >=483 MPa | >=70000 psi | Varies with size and form |
| Tensile Strength, Yield | >=345 MPa | >=50000 psi | Varies with size and form |
| Elongation at Break | >= 18% | >=18% | in 200 mm (8 in.); Varies with size and form |
| >= 21 % | >=21% | in 50 mm (2 in.); Varies with size and form | |
| Modulus of Elasticity | 205 GPa | 29700 ksi | Typical for steel |
| Poissons Rtio | 0.28 | 0.28 | Calculated |
| Shear Modulus | 80.0 GPa | 11600 ksi | Typical for steel |
| Carbon, C | 0.10-0.19% | 0.10-0.19% | |
| Chromium, Cr | 0.40-0.65% | 0.40-0.65% | |
| Copper, Cu | .025-0.40% | 0.25-0.40% | |
| Iron, Fe | 97-98.2% | 97-98.2% | as balance |
| Manganese, Mn | 0.90-1.25% | 0.90-1.25% | |
| Phosphorous, P | <= 0.040 % | <= 0.040 % | |
| Silicon, Si | 0.15-0.30% | 0.15-0.30% | |
| Sulfur, S | <= 0.040 % | <= 0.040 % | |
| Vanadium, V | 0.020-0.10% | 0.020-0.10% |
