Specifications of AISI 439 Stainless Steel Square Tube/Pipe:

1. Standard: ASTM A312 A213 A269 A270 DIN11850 DIN17548

2. Grade: 201,304L,304H,316, 316L,310S,321,317L.347H,etc.

3. Diameter Range: 40*20*2 ~ 250*150*8mmm

4. Surface Finish : Mill Finish, 180#, 400#,600#,180# hairline,240# hairline ,etc