- Inside Hardened

- Outside Softer Material (Outside Harder Material more susceptible to Cracking)

- Ends are Flange Welded

- Handles are Welded to a Plate

- Outlet End has Increased Wall Thickness and Hardness

- Inside Hardened

- Outside Softer Material (Outside Harder Material more susceptible to Cracking)

- Ends are Flange Welded

- Handles are Welded to a Plate

- Outlet End has Increased Wall Thickness and Hardness

- Inside Hardened

- Outside Softer Material (Outside Harder Material more susceptible to Cracking)

- Ends are Flange Welded

- Handles are Welded to a Plate

- Outlet End has Increased Wall Thickness and Hardness

- Inside Hardened

- Outside Softer Material (Outside Harder Material more susceptible to Cracking)

- Ends are Flange Welded

- Handles are Welded to a Plate

- Outlet End has Increased Wall Thickness and Hardness

- Inside Hardened

- Outside Softer Material (Outside Harder Material more susceptible to Cracking)

- Ends are Flange Welded - Handles are Welded to a Plate

- Outlet End has Increased Wall Thickness and Hardness

- Inside Hardened

- Outside Softer Material (Outside Harder Material more susceptible to Cracking)

- Ends are Flange Welded - Handles are Welded to a Plate

- Outlet End has Increased Wall Thickness and Hardness