SA455 Boiler Quality Plates
SA455 high-strength carbon-manganese steel plates for pressure vessels.SA455 is normally supplied in semi-quenched or capped steel, however, at the option of the ordering party or producer, it can be supplied in silicon-quenched or aluminium-quenched steel.SA455 plates are available in a maximum thickness of 20 mm.Plates are normally supplied in rolled condition, but can also be normalised or/and stress relieved.
SA537 CL.2 Boiler Plate Steel chemical composition
|
Main chemical elements composition of SA455 |
||||
|
C |
Si |
Mn |
P |
S |
|
0.33 |
0.13 |
0.79-1.30 |
0.035 |
0.035 |
SA537 CL.2 pressure vessel plate mechanical property
|
Thickness(mm) |
Yield strength (≥Mpa) |
Tensile strength (Mpa) |
Elongation in ≥,% |
|
|
T≤9.5 |
260 |
515-655 |
200mm |
50mm |
|
9.5<T≤15 |
255 |
505-640 |
15 |
22 |
|
15<T |
240 |
485-620 |
||
SA537 CL.2 pressure vessel steel plate Thermal coefficient
| Property | Temperature | Value | Comment |
|---|---|---|---|
|
Coefficient of thermal expansion |
23.0 °C |
1.32E-5 1/K |
Typical for Medium Carbon Steel |
|
Max service temperature |
500 °C |
Typical for Carbon Steel |
|
|
Melting point |
1380 - 1514 °C |
Typical for Medium Carbon Steel |
|
|
Specific heat capacity |
23.0 °C |
470 - 520 J/(kg·K) |
Typical for Medium Carbon Steel |
|
Thermal conductivity |
23.0 °C |
21 - 52 W/(m·K) |
Typical for Medium Carbon Steel |
Pressure Vessel Steel Shell Plate Products image



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We support multi-specification and multi-specification steel plate customization. If you have customization needs for SA455 Boiler Quality Plates or other hot rolled steel products, please contact me.
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