A588 is a high strength, low alloy steel plate that was developed for use cases demanding higher strength and a longer life cycle. A588 is known for its atmosph
A588 is a high strength, low alloy steel plate that was developed for use cases demanding higher strength and a longer life cycle. A588 is known for its atmospheric corrosion resistance thanks to a natural patina of rust that forms when exposed to outdoor weather conditions.
TYPICAL STANDARDS
| SIZES ROUTINELY STOCKED (IMPERIAL) | |||
|---|---|---|---|
| Formats | Thickness | Width | Length |
| Coil | 3/16" - 1/2" | 48", 60", 72", 84", 96" | Any |
| Cut to Length | 3/16" - 1/2" | 84", 96" | Any |
| Hot Rolled (Strip Mill) | 3/16" - 1/2" | 48", 60", 72" | Any |
| Discrete (Mill Rolled) | 48", 60", 72" | 96" | 240" - 480" |
MORE DETAILS ABOUT A588 STEEL
CHEMICAL PROPERTIES (GRADE A)
| C | MN | P | S | SI | NI | CR | CO | V |
|---|---|---|---|---|---|---|---|---|
| 0.19% | 0.80 - 1.25% | 0.030% | 0.030% | 0.03 - 0.65% | 0.40% | 0.40-0.65% | 0.25-0.40% | 0.02-0.10% |
CHEMICAL PROPERTIES (GRADE B)
| C | MN | P | S | SI | NI | CR | CO | V |
|---|---|---|---|---|---|---|---|---|
| 0.20% | 0.75 - 1.35% | 0.030% | 0.030% | 0.15 - 0.50% | 0.50% | 0.40-0.70% | 0.20-0.40% | 0.01-0.10% |
CHEMICAL PROPERTIES (GRADE K)
| C | MN | P | S | SI | NI | CR | MO | CO | NB |
|---|---|---|---|---|---|---|---|---|---|
| 0.17% | 0.50 - 1.20% | 0.030% | 0.030% | 0.25 - 0.50% | 0.40% | 0.40-0.70% | 0.10% | 0.30-0.50% | 0.005-0.05% |
MECHANICAL PROPERTIES (GRADE A)
| MECHANICAL PROPERTIES | ||
|---|---|---|
| Metric | Imperial | |
| Tensile Strength, Ultimate | 400 - 550 MPa | 58,000 - 79,800 PSI |
| Tensile Strength, Yield | 250 MPa | 36,300 PSI |
| Elongation at Break (in 200 mm) | 20.0% | 20.0% |
| Elongation at Break (in 50 mm) | 23.0% | 23.0% |
| Modulus of Elasticity | 200 GPa | 29,000 KSI |
| Bulk Modulus (Typical for Steel) | 140 GPa | 20,300 KSI |
| Poissons Ratio | 0.260 | 0.260 |
| Shear Modulus | 79.3 GPa | 11,500 KSI |
Advantages/Disadvantages
The biggest advantage to A588 is its atmospheric corrosion resistance for which it was specially formulated. It is substantially better than other structural steels like A36 or A572.
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