If according to the grades of pressure points,elbows can be dividedinto about 17 species, same to the pipe standard ofUnited States. there are: Sch5s, Sch10s, Sch10, Sch20, Sch30, Sch40s, STD, Sch40, Sch60, Sch80s, XS; Sch80, SCH100, Sch120, Sch140, Sch160, XXS; One of the most common is two STD and XS.
Steel grades:
Carbon steel :Gr.B,A53,A106,A105,A179,A192,A197,A234 WPB etc
Stainless steel :304,304l,312,316,316L,310S and more
Alloy steel:15Cr Mo,35CrMo~42CrMo and more.
Carbon steel :Gr.B,A53,A106,A105,A179,A192,A197,A234 WPB etc
Stainless steel :304,304l,312,316,316L,310S and more
Alloy steel:15Cr Mo,35CrMo~42CrMo and more.
Surface treatment: Galvanized ,Black painting ,Varnished coating,Rust-proof painting or as per customer's requirements.