SA302 Grade A is a manganese-molybdenum alloy steel plate, specified under ASME/ASTM standards, used for manufacturing welded boilers and pressure vessels. Key characteristics include a minimum yield strength of 310 MPa and a tensile strength between 515-655 MPa. Plates over 50mm in thickness are typically supplied in the normalized condition to ensure proper grain structure.
Steel Standard:ASME SA302/SA302M
Rolling Type:Boiler steel plate,Pressure vessel steel plate
Thickness:5mm-300mm
Width:1500mm-4200mm
Length:3000mm-18000mm
Heat Treatment:Normalised/Normalized+Tempered
Mechnical property for SA302GrA steel plate:
| Yield strength (≥Mpa) | Tensile strength (Mpa) | Elongation in ≥,% | |
| 310 | 515-655 | 200mm | 50mm |
| 15 | 19 | ||
Chemical composition for SA302 Grade A steel plate (Product Analysis Max%)
| Main chemical elements composition of SA302Grade A | ||||||
| Thickness(mm) | C | Si | Mn | P | S | Mo |
| T≤25 | 0.20 | 0.13-0.45 | 0.87-1.41 | 0.035 | 0.035 | 0.41-0.64 |
| 25<T≤50 | 0.23 | |||||
| 50<T | 0.25 | |||||
Applications
Boilers: Used in the construction of industrial boilers.
Pressure Vessels: Designed for use in various pressure vessels that contain gases or liquids under high pressure.
Heat Exchangers: Also suitable for use in heat exchangers and steamers.
