Taseto RNY309L description: TASETO RNY309L is the low carbon type electrode of RNY309 and is suitable for first layer of low carbon type stainless steel overlay welding. Also, this electrode provides the performance as equal as RNY309 when used in welding of dissimilar metals and in welding of martensitic and ferritic type stainless steel such as Type 410 or 430. RNY309L is a lime-titania type electrode suitable for positional welding.