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stainless steel rectangular pipe

stainless steel rectangular pipe

About Stainless steel rectangular tube

The rectangular tube is a hollow steel strip, also known as flat tube, flat square tube or flat tube (Gu Mingsiyi). 

When the bending and torsional strength are the same, the weight is light, so it is widely used in the manufacture of mechanical parts and engineering structures.



Classification for stainless steel rectangular tube

According to Process technical: Seamless steel square pipe and welded steel square pipe.

According to Section shape: Square tube, rectangular, square, square shaped flower shaped opening, corrugated tube, square shaped.

According to grade : 304、304L、TP304、TP316L、316、316L、316Ti、321、347H、310S etc.

According to production standard : GB standard,JIS standard,inch standard, ASTM standard, DIN sandard, Africa standard.

According to Wall thickness :Super thick,thick and thin walled tube.

According to application : Decorative square tube, square tube machine equipment and machinery industry square tube etc.

According to process technical: Cold rolled technical: bright finishHot rolled technical: Acid white finish


Commonly used size for stainless steel rectangular pipe

50x70x1.50-5.0060x140x3.00-6.00150x250x5.00-14.00
50x80x2.00-5.0080x100x2.00-8.00150x300x5.00-14.00
50x100x1.50-5.0080x120x2.50-8.00200x300x6.00-14.00
50x120x3.00-6.0080x140x3.00-8.00200x350x6.00-16.00
50x150x3.00-6.0080x160x3.00-8.00200x400x6.00-16.00
50x90x3.00-4.00100x150x3.00-12.00200x500x6.00-16.00
60x80x2.00-5.00100x200x3.00-12.00300x500x6.00-16.00
60x100x2.50-6.00100x300x4.00-12.00350x250x5.00-14.00
60x120x2.50-6.00150x200x3.00-12.00400x600x6.00-16.00

Theoretical weight for stainless steel rectangular pipe(KG/M)

Specification(mm)WT(mm)theoretical weight
(KG/M)
b1(length)b2(length)
50251.201.37
1.501.70
------------
302.502.94
3.003.49
4.004.52
------------------
60302.503.34
3.003.96
4.0035.15
-------------------
402.503.73
3.004.43
4.005.78
-----------------
70503.005.37
4.007.03
5.008.64
--------------


Specification(mm)WT(mm)theoretical weight
(G/M)
b1(length)b2(length)
80402.504.51
3.005.37
4.007.03
5.008.64
--------------
603.006.31
4.008.29
5.0010.21
------------
90403.005.84
4.007.66
5.009.42
---------------
503.006.31
4.008.29
5.0010.21
------------
603.006.78
4.008.92
5.0010.99


Specification(mm)WT(mm)theoretical weight
(KG/M)
b1(length)b2(length)
100503.006.78
4.008.92
5.0010.99
--------------
120603.008.20
4.0010.80
5.0013.35
6.0015.83
-------------
803.009.14
4.0012.06
5.0014.92
6.0017.71
-------------
140804.0013.31
5.0016.48
6.0019.59
------------
Specification(mm)WT(mm)theoretical weight
(KG/M)
b1(length)b2(length)
1501004.0015.20
5.0018.84
6.0022.42
----------
160804.0014.57
5.0018.05
6.0021.48
8.0028.13
-----------
1801004.0017.08
5.0021.20
6.0025.25
8.0033.16
------------
2001004.0018.34
5.0022.77
6.0027.13
8.0035.67
-------

Prodcution process for stainless rectangular pipe


Finish proceesing for stainless steel rectangular pipe

No.4: Honed with 150-180 grit abrasive belt products. It has better brightness with discontinuous coarse grain, fine stripes than NO.3. Stainless steel castings used for sanding and polishing the surface.

HL: Polishing abrasive belt with a suitable size (150 to 320 mesh), so No.4 generates continuous hairline brushed surface

Mirror(No.8): Rotary buff polishing, mirror-like surface of the polishing surface

BA: No clear criteria. After cold rolling through bright annealing process, and to temper rolling products, high surface reflectivity. Or mirror-polished surface with a cloth buffing wheel obtained


Application 

As the pipe conveying fluid, such as oil, gas, water, gas, steam.in addition, the bending and torsional strength of the same, the weight is light, so it is widely used in the manufacture of machinery parts and engineering structures. Also used for production of various conventional weapons, artillery barrel, etc.




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