A516 Carbon Steels

BLP produces the full range of A516 plate steels in Grades 55, 60, 65 and 70. Plate thicknesses to 15 inches, widths to 195 inches, lengths to 1525 inches and pattern weights up to 50 tons can be produced, depending on a combination of specification and size requirements. Our advanced facilities make possible the production of A516 to a variety of customer and industry specifications, including the most rigorous hydrogen induced cracking (HIC) testing requirements.

There are no heat lot ordering requirements for any of the quality levels of A516 produced by BLP.

Carbon Equivalent Controls

Due to the concern for weldability, BLP will produce A516 steels to restricted carbon and CE levels when requested. The maximum levels will vary by grade, thickness and post weld heat treatment requirements.

As shown by the data in Figure 2, the carbon and other elements that comprise the most commonly-used CE formula are important for providing strength. Figure 3 shows, by plate thickness, the CE levels that can be achieved for the various grades of A516 while still maintaining the required strength levels.

Both carbon and CE can be controlled by employing special melting practices. Figure 4 demonstrates the improvements that can be achieved with special melting. Furthermore, if even more aggressive requirements are desired, quench and temper (Q&T) heat treatment will allow even lower carbon and CE levels. It also improves toughness and resistance to post weld heat treatment# (PWHT).