TORICH INTERNATIONAL LIMITED
TORICH INTERNATIONAL LIMITED The Steel Tube Maker
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304 316 Stainless Steel Tube Handrail Pipe Flat Oval Tube
The development of special-shaped pipes is mainly the development of product varieties,
Including section shape, material and performance. Extrusion, cross die rolling and cold
drawing It is an effective method to produce special-shaped pipe.
It is suitable for producing special-shaped pipes with various sections and materials.
In order to produce a wide variety of special-shaped pipes, we must also have a variety
of production means.
In the 1990s, on the basis of cold drawing, China developed roll drawing
Rotary forging, hydraulic rolling, extrusion, and rotary die,
And constantly improve and create new equipment and processes.
| Origin | ZHEJIANG CHINA |
| Brand | TORICH |
| Type | Welded |
| Material | ss400 304,TP304,TP304L,TP304LN |
| Tolerance | ±3% |
| Application | Handrail,Railing,Door construction,decoration, Furniture,Fence |
| Technique | Hot Rolled |
| OD | 40*120, 40*100, 65*114, 55*160, |
| WT | 0.5-12mm |
Production Processs:
The tubes shall be made from flat-rolled steel by an automatic welding process with no
addition of the filler metal----cold drawn to oval shape tube----cut to the required length----deburr
Chemical composition of 304 Stainless Steel:
| Cr% | Ni% | C% | P% | Si% | Mn% | S% |
| 18-19 | 8-9 | 0.03-0.07 | ≤0.035 | ≤1 | ≤2 | ≤0.03 |
Steel Grade/Steel Material:
| Steel Grade | TP304 | TP304L | TP304LN | TP316 | TP316L |
| UNS | S30400 | S30403 | S30453 | S31600 | S31603 |
| C, max | 0.08 | 0.035 | 0.035 | 0.080 | 0.035 |
| Mn, max | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 |
| P, max | 0.045 | 0.045 | 0.045 | 0.045 | 0.045 |
| S, max | 0.030 | 0.030 | 0.030 | 0.030 | 0.030 |
| Si, max | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
| Ni | 18.0-20.0 | 18.0-20.0 | 18.00-20.00 | 16.0-18.0 | 16.0-18.0 |
| Cr | 8.0-11.0 | 8.0-13.0 | 8.00-12.00 | 11.0-14.0 | 10.0-14.0 |
| Mo | 2.00-3.00 | 2.00-3.00 |