304 316 316L inox square/rectangular/round tubes stainless steel welded pipe diameter 8-114mm
stainless steel square tube specification and size
1. Grade 200, 300, 400 series
2. O. D: 6--500mm, W. T: 0.5-20mm
3. Standard: ASTM, JIS, DIN
4) Length: 5.8m(or according to customers' requests)
5) Tolerance:
A) Outer diameter: +/-0.15mm
B) Thickness: +/-11% of wall thickness
C) Length: +/-4.5mm - 0mm
6) Material: 201, 202, 304, 304L, 321, 409, 430 etc.
7) Surface: Mirror Polish, satin Polish, without Polish, NO.1, NO.4
8) delivey time: Within 7-20days
9) Packaging: In bundles or in loose or seaworthy packing or as per requirement
Stainless steel Square tube is widely used in machinery, chemical, automobile, textile machinery, construction, containers and supermarket shelves, etc
| Chemical Composition |
| | C | Si | Mn | P≤ | P≤ | Cr | Mo | Ni | Other |
| 201 mid copper | ≤0.15 | ≤1.00 | 7.5-10.5 | 0.06 | 0.03 | 13-15 | - | 0.8-1.5 | Cu>0.8 |
| 201 high copper | ≤0.15 | ≤1.00 | 7.5-10.5 | 0.06 | 0.03 | 13-15 | - | 0.8-1.5 | Cu>1.4 |
| 304 | ≤0.08 | ≤1.00 | ≤2.00 | 0.045 | 0.03 | 18-20 | - | 8-10.5 | - |
| 304L | ≤0.03 | ≤1.00 | ≤2.00 | 0.045 | 0.03 | 18-20 | - | 8-10.5 | - |
| 316 | ≤0.08 | ≤1.00 | ≤2.00 | 0.045 | 0.03 | 16-18 | 2-3 | 10-14 | - |
| 316L | ≤0.03 | ≤1.00 | ≤2.00 | 0.045 | 0.03 | 16-18 | 2-3 | 12-15 | - |
| 430 | ≤0.12 | ≤0.75 | ≤1.00 | 0.04 | 0.03 | 16-18 | - | ≤0.6 | ° |
| Stainless Steel Pipe Type |
| Diameter of Stainless Steel Pipes |
| Nominal Diameter(mm) | Outside Diameter(mm) | Nominal Wall Thickness (mm) |
| N.B | NPS | SCH5S | SCH10S | SCH40S |
| 8 | 1/4″ | 13.72 | | 1.65 | 2.24 |
| 10 | 3/8″ | 17.15 | | 1.65 | 2.31 |
| 15 | 1/2″ | 21.34 | 1.65 | 2.11 | 2.77 |
| 20 | 3/4″ | 26.67 | 1.65 | 2.11 | 2.87 |
| 25 | 1″ | 33.4 | 1.65 | 2.77 | 3.38 |
| 32 | 1-1/4″ | 42.16 | 1.65 | 2.77 | 3.56 |
| 40 | 1-1/2″ | 48.26 | 1.65 | 2.77 | 3.68 |
| 50 | 2″ | 60.33 | 1.65 | 2.77 | 3.91 |
| 65 | 2-1/2″ | 73.03 | 2.11 | 3.05 | 5.16 |
| 80 | 3″ | 88.9 | 2.11 | 3.05 | 5.49 |
| 90 | 3-1/2″ | 101.6 | 2.11 | 3.05 | 5.74 |
| 100 | 4″ | 114.3 | 2.11 | 3.05 | 6.02 |
| 125 | 5″ | 141.3 | 2.77 | 3.4 | 6.55 |
| 150 | 6″ | 168.28 | 2.77 | 3.4 | 7.11 |
| 200 | 8″ | 219.08 | 2.77 | 3.76 | 8.18 |
| Product Applications |
| •Petroleum, Chemical enterprise, super heater of boiler, heat exchanger •High temperature resistant transmission fluid pipe in power station •Ship with pressure pipe •The exhaust purification device •Construction and ornament |
Contact us
>>> Person: Bella Chen
>>> Mobile / Whatsapp: +8613812005384
>>> Skype:karen@stainlesssteel-sheetmetal.com
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>>> Email: karen@stainlesssteel-sheetmetal.com
