SA299GrB Boiler Steel Plates

SA299GrB steel plate is one of the most widely used boiler steel plates. Main applications are heads and casings for 300MW \ 600MW subcritical boiler drum and pressure vessel products. SA299GrB boiler plates are generally used for various welding parts with an operating temperature not exceeding 400°C, such as boiler drums, pressure vessels, etc., the steel is required to have a high medium temperature.

IF you want to purchase steel, pls send RFQ to klsteelamber@outlook.com.

SA299GrB Boiler Steel Plates Dimension

Grade: SA299 Grade B

Thickness: 3-150mm

Width: 1220-4200mm

Length: 5000-18000mm

Coils available: 1.2 to 25mm

Implementation standards: Implementation of ASME SA29 / SA 29M-05 standards.

Delivery state: normalized or hot rolled, generally 50mm or more should be delivered in normalized state.

Tensile Requirements for SA299GrB Boiler Steel Plates

Yield strength Min. Mpa[ksi]	Yield strength Min. Mpa[ksi]	Tensile strength	Elongation in 8 in.	Elongation in 2 in.
thickness ≦25mm	thickness>25mm	Mpa[ksi]	Min, %	Min, %
325[47]	310[45]	550-690 [80-100]	16	19

The chemical composition of domestic SA299 Grade B steel fully meets the requirements of ASME SA-299.The content of harmful impurities such as P and S is low. The chemical composition is uniform in the thickness direction of the steel plate, and there is no obvious component segregation. Compared with imported steel plates, The content of carbon, manganese and chromium is low.