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stainless steel square pipe

304 stainless steel square pipe

About 304 stainless steel square pipe

304 square is a square called pipe, is equal to the length of steel pipe. The strip is processed by a process roll. Strip steel is generally after unpacking, leveling, crimping, welding forming round tube, and then rolled into a square tube from the tube and cut into the required length. Usually 50 roots form a package.



Production process for stainless steel square pipe

Prepare the round steel 

Then heating the original material,Hot rolling perforation for original material,Cutting the pipe head

Pipe pickling mGrinding for pipe,lubrication for pipe finish,Cold rolling process,Skim for pipe

Solid solution heat treatment,Pipe Straightening,Cutting the pipe,Pipe pickling

Marking,storage


Chemical compostion

C(%)Si(%)Mn(%)Cr(%)P(%)S(%)N(%)Ni(%)Cu(%)
≤0.08≤1.00≤2.0018.0-20.0≤0.045≤0.03≤0.108.0-11.0---

Mechanical property

tensile strength
(Mpa)
Yield Strength
(Mpa)
Elongation
(%)
≥520≥205≥40


Application

304 square piping is widely used in chemical, petrochemical, water treatment, paper making, food hygiene and other equipment.


Special processing for finish

Inside and outside polishing (surface polishing of 180#, 220#, grade: 240#, 320#, 400#, 600#, 800#)drawing; pickling; inner bead leveling; online bright heat treatment,No.4 / Hairline,Mirror etc finish.


Calculating formula for weight(KG/M)

Outside x Outsde x 2 ÷ 3.1416 - Wall thickness x Wall thickness x 0.02466

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