Umsebenzi we-butt weld elbow kukutshintsha indlela okanye ukuhamba kwenkqubo yokufakelwa. Kukho ama-45 °, 90 ° kunye ne-180 °.
Ngokwamxholo, oko kunokwahlulwa kuba yintsimbi yekharbon, isabelo sensimbi kunye nentsimbi engenanto.
Ngokutsho kwe-curvatus yayo ye-curvature, kukho i-radius ende kunye ne-radius emfutshane ye-bhuti.