: The current version is ASTM B151/B151M-20 , approved in April 2020. Key Content :
: Used extensively in valves, pumps, automotive components, and marine environments. asme b151 pdf upd
Depending on your industry, the "upd" (updated) PDF you are looking for likely falls into one of these categories: 1. ASTM B151: Copper-Nickel-Zinc Alloy Rod and Bar : The current version is ASTM B151/B151M-20 ,