ASME SA588/ASTM A588 nuclear power steel plate
ASME SA588 / ASTM A588 steel plates are high-strength, low-alloy structural steel with enhanced atmospheric corrosion resistance, suitable for nuclear power applications. We offer certified industrial supply.
1. Superior Corrosion Resistance
2.High Strength and Durability
3.Conformance to ASME and ASTM Standards
ASME SA588/ASTM A588 nuclear power steel description
ASME SA588 / ASTM A588 Nuclear Power Steel Plates are high-strength, low-alloy structural steels widely used in nuclear power plants, bridges, and other critical infrastructure requiring superior atmospheric corrosion resistance.
We are a leading China-based manufacturer and bulk exporter of Grade A/B/C/K plates, offering excellent weldability, toughness, and long-term durability in harsh environments. Our plates are available in thicknesses ranging from 6mm to 100mm, fully compliant with ASME/ASTM standards, making them ideal for nuclear containment structures, reactor vessels, and heavy construction projects.
Trusted by fabricators, EPC contractors, and energy sector suppliers, our SA588 steel plates ensure high performance, corrosion resistance, and structural integrity for demanding applications.
ASME SA588/ASTM A588-Chemical Composition/Mechanical Properties
| ASME SA588/ASTM A588-Chemical Composition (%) | |||
| Element | Grade A | Grade B | Grade C |
| Carbon (C), max | 0.19 | 0.2 | 0.15 |
| Manganese (Mn) | 0.80–1.25 | 0.75–1.35 | 0.80–1.35 |
| Phosphorus (P), max | 0.04 | 0.04 | 0.04 |
| Sulfur (S), max | 0.05 | 0.05 | 0.05 |
| Silicon (Si) | 0.15–0.40 | 0.15–0.40 | 0.15–0.40 |
| Nickel (Ni), max* | 0.5 | 0.5 | 0.5 |
| Chromium (Cr) | 0.40–0.70 | 0.40–0.70 | 0.40–0.70 |
| Copper (Cu) | 0.25–0.40 | 0.20–0.40 | 0.20–0.40 |
| Vanadium (V), max* | 0.01–0.10 | 0.01–0.10 | 0.01–0.10 |
| ASME SA588/ASTM A588-Mechanical Properties | |||
| Property | Grade A | Grade B | Grade C |
| Tensile Strength (MPa), min | 485 | 485 | 485 |
| Yield Strength (MPa), min | 345 | 345 | 345 |
| Elongation (%), min (in 50 mm) | 18 | 18 | 21 |
| Impact Test (Charpy V-notch, J), min | -40°C | -40°C | -40°C |
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ASME SA588/ASTM A588 nuclear power steel Application
ASME SA588 / ASTM A588 steel plates are widely used in nuclear power and other high-performance applications due to their excellent strength, corrosion resistance, and weldability. In the nuclear energy sector, they are commonly employed in the construction of containment structures, reactor pressure vessels, and auxiliary systems where high strength and durability are critical. Their superior atmospheric corrosion resistance makes them ideal for outdoor nuclear facilities exposed to harsh weather conditions.
Beyond nuclear power, SA588 Grade A and B are utilized in heavy construction, such as bridges and offshore platforms, where long-term structural integrity is essential. The chemical and petrochemical industries also rely on these plates for pressure vessels and storage tanks handling aggressive media. Additionally, SA588 is favored in marine environments for shipbuilding and coastal infrastructure due to its ability to withstand saltwater exposure.
EPC contractors and structural engineers value SA588 for its combination of high yield strength and corrosion resistance, reducing maintenance costs over time. Its reliability in extreme conditions ensures its continued use in critical infrastructure projects worldwide.
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