TORICH INTERNATIONAL LIMITED
TORICH INTERNATIONAL LIMITED The Steel Tube Maker
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ISO 2037 Stainless steel tubes for the food industry
Application: In food industry
Materials:
Austenitic stainless steels shall be used.
- Seamless tubes: TS47, TS60 and TS61 in accordance with ISO 2604-6:1978
- Weld tubes: TW 47, TW 60 and TW61 in accordance with ISO 2604-4:1978
Surface roughness:
The surface roughness in accordance with the specifications of ISO 468
Fine surface finish Ra ≤ 1 μm
Other surface finish Ra ≤ 2.5 μm
Table 1 Dimension in millimeters
| Tube outside diameter | Thickness |
| 12 12.7 17.3 21.3 | 1 1 1 1 |
| 25 33.7 38 | 1.2 1.6 1.2 1.6 1.2 1.6 |
| 40 51 63.5 | 1.2 1.6 1.2 1.6 1.6 |
| 70 76.1 88.9 | 1.6 1.6 2 |
| 101.6 114.3 139.7 | 2 2 2 |
| 168.3 219.1 273 | 2.6 2.6 2.6 |
| 323.9 355.6 406.4 | 2.6 2.6 3.2 |
Bibliography:
ISO 1127:1992 Stainless steel tubes - Dimensions, tolerances and conventional masses per unit length
ISO 2604-2:1975 Stainless products for pressure purposes - Quality requirements - Part 2: Wrought seamless tubes
ISO 2604-5:1987, Steel products for pressure purposes - Quality requirements Part 5: Longitudinally welded austenitic stainless steel tubes
ISO 4200:1991, Plain end steel tubes, welded and seamless - General tables of dimensions and masses per unit length
