What is the A299 Gr B steel tensile requirement?

A299 Gr B steel plate is a C-Mn-SI carbon steel for boiler and pressure vessel plate. It is generally used for various welded parts whose working temperature does not exceed 400°C, such as boiler steam drum, pressure vessel, etc. The steel is required to have high The medium temperature strength, good plasticity, heat treatment process performance and welding process performance.

A299 Gr B steel tensile requirement:

Grade	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, %
A299 Gr B	325[47]	310[45]	550-690 [80-100]	16	19

Our A299 Gr B steel plate is able to produce thickness ranging from 8mm to 150mm. A299 Gr B pressure vessel plate is one of the materials widely used in boiler drums (steam drums) of coal-fired generator sets. It is mainly used in the head and shell of 300MW\600MW subcritical boiler drum products.