SA516 Gr.70

SA-516 Grade 70 covers a range of tensile strengths from 55 MPa to 90 MPa and this versatility indicates much of the specifications popularity. 

In general, 16MnR is considered to be equivalent to SA516 Grade 70. However, 16MnR gets higher yield strength than that of SA516 Gr.70. Compared with SA516 Gr.70, 16MnR's C content is much lower and its Mn content is much higher. Moreover, in China, ASME SA-516 steel is usually used to make exported pressure vessels (design temperature: -20 ℃～-50 ℃) designed for low-temperature working conditions while Chinese 16MnR is not appropriate for low-temperature pressure vessels.