Core-Bright 308L was developed for flat and horizontal welding without the use of a shielding gas when joining 304 or 304L stainless steel.
Core-Bright 309L was developed for flat and horizontal welding without the use of a shielding gas when cladding or joining stainless to mild carbon steels.
Core-Bright 316L was developed for flat and horizontal welding without the use of a shielding gas where added corrosion resistance on 316 or 316L is required.