ASME SA588 Grade B is a material with high aesthetic value that turns the final product into a unique and exclusive specimen. ASME SA588 Grade B is high-resistance self-passivating alloy containing copper, chrome and phosphorus, characterised by a high resistance to corrosion and to tensile yield; these alloys are self-protective through the formation of a superficial coating that prevents the progressive extending of the corrosion process.The natural oxidation process, when in contact with air, can be accelerated through appropriate oxidising baths.
What is the difference between A588 Grade B and SA588 Grade B?
Indeed, their mechanical composition and chemical properties are identical and the key difference is the produce standard. ASTM, the American Society for Testing and Materials, produce standards that define limits and parameters on a product's properties and the methods of testing those properties. ASME, the American Society of Mechanical Engineers, specifies materials to be used in the manufacture and construction of particular items.The correct standard to keep is based on the specific contract or on local laws. The difference between the two standards is less concrete
ASME SA588 Grade B Steel Chemical Composition:
| Grade |
C% |
Si% |
Mn% |
P% |
S% |
Cu% |
V% |
Cr% |
Ni% |
| SA588Grade B |
0.20 |
0.15-0.50 |
0.75-1.35 |
0.040 |
0.050 |
0.20-0.40 |
0.01-0.10 |
0.4-0.70 |
0.50 |
ASME SA588 Grade B Steel Mechanical Properties:
| Grade |
Yield Strength |
Tensile Strength |
Elongation % |
| SA588Grade B |
≥345 MPa |
≥485 MPa |
21 |
SA588 Grade B Delivery Condition: Hot Rolled, Cold Rolled, Normalized, Quenched, Tempering, Thermal Mechanical Control Process (TMCP).
ASME SA588Gr. B is mainly used for constructions such as steel structures, bridges, tanks and containers, exhaust systems, vehicles and equipment constructions, Roofing material:
- Railway train, dining car, reefer car, etc
- Stamping piece and decoration piece
- Transportation manufacturing
- Architectural structure, like bridge, tower, oil derrick, harbor structure
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