ASME SA204 Grade B is used in fabricators serving industry, especially in the oil, gas and chemical supply markets. Equivalent steel grade is France 15 CD 4.05. ASME SA204 Gr.B Pressure vessel steel plate is a kind of Mo-alloy steel material used to fabric high temperature pressure vessels. SA204 steel grade specification covers molybdenum alloy, intended particularly of welded boilers and others pressure vessels steel plate in SA204 Gr. A,SA204 Gr .B and SA204 Gr .C.
ASME SA204 Gr.B Pressure vessel steel plate is widely used to make the reactor, heat exchanger, separator, spherical tank, liquefied gas, nuclear reactor pressure vessel, boiler steam drum steam, liquefied petroleum, hydropower station, high pressure pipe.
Chemical Composition
| SA204 Grade B Chemical Composition | |||||
| Grade | The Element Max (%) | ||||
| C | Si | Mn | P | S | |
| A204 Grade B | 0.20-0.27 | 0.13-0.45 | 0.90-0.98 | 0.035 | 0.035 |
Mechanical Property
| Mechanical Property of SA203 Grade A steel plate | SA204 Grade B |
| Tensile strength, kis [MPa] | 70-90 [485-620] |
| Yield strength, min, kis [MPa] | 40 [275 |
| Elongation in 8 in. [200 mm], min, % | 17 |
| Elongation in 2 in. [50 mm], min, % | 21 |
ASTM A204 Grade B(A204GRB) Pressure Vessel And Boiler Steel Plate Other Name
ASTM A204 Grade B(A204GRB) Boiler steel plate|ASTM A204 Grade B(A204GRB) Pressure Vessel Steel plate|ASTM A204 Grade B(A204GRB) Storage Tanks Steel plate|ASTM A204 Grade B(A204GRB) Heat Exchanger Steel Plate .
Additional Condition
UT(Ultrasonic examination), AR(As Hot Rolled only), TMCP(Thermal Mechanical Control Processing), N(Normalized), Q+T(Quenched and Tempered),Z Direction Test(Z15,Z25,Z35), Charpy V-Notch Impact Test, The Third Party Test (such as SGS Test), Coated or Shot Blasting and Painting.
