When it comes to plumbing, the flow may be obstructed with the directions but with the usage of right elbow, this obstruction can be prevented. And, to help plumbers and end-users get access to an amazing grade of elbow, we offer Carbon Steel Elbow. An important perk of buying this elbow is that it is an ideal choice for not only plumbing applications but automotive, welding and ventilation, as well. And, as the name implies, 90 Degree Carbon Steel Elbow has higher carbon content and is angled at 90 degrees.