Avesta 316L/SKR-PW description: AYESTA 316L/SKR-PW is a Cr-Ni-Mo electrode with a coating optimised for the vertical-up and overhead position welding of ASTM 316 and 316L stainless steels. Thanks to the sharp and concentrated arc, PW electrodes are extremely suitable for maintenance and repair welding, especially when joint surfaces are not particularly clean.