A588 Grade A steel plate is for high strength low alloy structural steel with 345Mpa minimum yield point to 100mm thickness.When properly exposed to the atmosph
A588 Grade A steel plate is for high strength low alloy structural steel with 345Mpa minimum yield point to 100mm thickness.When properly exposed to the atmosphere, A588 Grade A is suitable for many applications in the bare condition.Equal steel grade of ASTM A588 Grade A, in other standards: EN 10155 :S355J2G1W;SEW 087:WTSt 52-3; UNI:Fe510 D2K1;BS 4360:WR 50 C and some other steel grade.
A588 Grade A steel Chemical Composition Analysis
| Carbon, % | Manganese, % | Cr % | Silicon % | N % max | Sulfur % |
| Max 0.19 | 0.80-1.25 | 0.40-0.65 | 0.30-0.65 | 0.010 | 0.040 |
| Cu % | Phosphorus % | Ni % | Mo % | ||
| 0.25-0.40 | 0.05 | 0.40 | …. |
A588 Grade A steel Mechanical Properties
| Thickness | Yield Strength ReH[N/mm2]transv.min |
TensileStrength Rm[N/mm2]transv |
Fracture Elongation[%]transv. min. | Notch ImpactEnergy1)Ch Vcomplete samplelongitud. min [J] | |
| 0mm-100mm | 340 KPa | 480 KPa | - | - | - |
| 102mm-127mm | 320 KPa | 460 KPa | |||
| 127mm-203mm | 290 KPa | 430 KPa | |||
The atmospheric corrosion resistance of A588 Grade A steel in most environments is substantially better than that of carbon structural steels with or without copper addition. When properly exposed to the atmosphere, A588 Grade A steel is suitable for many applications in the bare (unpainted) condition.ASTM A588 Grade A Atmospheric Corrosion Resistant Steel is used for various types of welded, bolted and riveted constructions e.g. steel frame structures, bridges, tanks and containers, exhaust systems, vehicles and equipment constructions.
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