Stainless steel elbow is a kind of pipe fitting that changes direction in engineering pipelines. Stainless steel elbows are usually used in construction machinery. Large stainless steel elbows have the characteristics of large elbow diameter (above 800mm), thin wall and poor rigidity, and smooth and beautiful appearance. . It is difficult to process such large elbows using the manufacturing method of small and medium elbows.
The commonly used processing methods for small and medium-sized elbows are: casting method; the processing method of welding together after split pressing and forming; the method of welding together after split cutting processing, etc. It is difficult or even impossible to manufacture large stainless steel elbows by the above method. Because the casting method is used, it is very difficult to make the core; it is difficult to find such a large turning and milling equipment by cutting, which is limited by the equipment and processing technology; it is difficult to manufacture such a large mold by the pressing method, and the cost is very high and the manufacturing cycle is long.
How to distinguish the quality of stainless steel elbow
1. Appearance quality, no rust, surface finish.
2. Preliminary judgment, usually non-magnetic stainless steel (austenite) has better corrosion resistance than magnetic stainless steel (ferrite).
3. Chemical composition Stainless steel with high nickel content and low carbon content usually has good corrosion resistance, but the price is relatively expensive.
