Spezilla Tube Co., Ltd. (Shanghai)
Spezilla Tube Co., Ltd. Excellence in Stainless Steel Tubing
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ASTM A249 TP304 1.5'' X BWG18 TIG Welded Stainless Steel Tube Annealed & Pickled
Description:
304 Welded Stainless Steel Tube has excellent corrosion resistance in solutions of many halogen-free organic and inorganic compounds over a wide temperature and concentration range. It can withstand many organic and sufficiently diluted mineral acids depending on the temperature of the solution. Grade 304 may suffer from uniform corrosion in mineral acids and hot strong alkaline solutions.
In aqueous solutions containing halogenides, e.g. chlorides or bromides, pitting and crevice corrosion may occur depending on halogenide concentration, temperature, pH-value, concentration of oxidizing compounds, or crevice geometry, if applicable. For a short period of time, for instance during cooking of food in stainless steel dishes, 304 can tolerate even relatively high chloride concentrations. The presence of corrosion-inhibiting or accelerating compounds like transition metal ions or organic compounds may influence the corrosion behavior of 304.
304 is prone to chloride-induced stress corrosion cracking at temperatures over about 50 °C depending on the applied stress and the chloride concentration in the environment. Prior cold deformation of the structure under load increases the risk of stress corrosion cracking.
304 can be used for indoor and outdoor applications in rural areas and urban environments where chloride contamination is low. The best material performance is usually reached with the help of adequate design, correct post-weld treatment, and regular cleaning during use (if applicable)
| Item Code: | SPWD-304 |
| Tube OD.: | 38.1MM, 1.5'' |
| Wall: | 1.245MM, BWG18 |
| Length: | 6000MM |
| Material: | TP304, AISI 304 |
| Standard: | ASTM A249 / ASME SA249 |
| Finish: | AP / Annealed & Pickled. |
| Type: | Welded |
| Certification: | ISO9001:2015 |
| Mill Test Certificate: | EN10204 3.1 |
| Packing: | Sleeved, Wooden Boxed |
| Chemical Element | % ( Weight ) |
| Carbon (C) | 0.0 - 0.08 |
| Chromium (Cr) | 18.00 - 20.000 |
| Manganese (Mn) | 0.0 - 2.00 |
| Silicon (Si) | 0.0 - 1.00 |
| Phosphorous (P) | 0.0 - 0.05 |
| Sulphur (S) | 0.0 - 0.03 |
| Nickel (Ni) | 8.00 - 10.50 |
| Nitrogen (N) | 0.0 - 0.11 |
| Iron (Fe) | Balance |
Mechanical Property AISI 304 Welded Stainless Steel Tube:
| Mechanical Property | Value |
| Proof Stress | 190 Min MPa |
| Tensile Strength | 500 to 700 MPa |
| Elongation A50 mm | 45 Min % |
| Hardness Brinell | 215 Max HB |
Available Tube Product Forms:
Straight.
Coiled.
Typical Applications:
Industrial
Lighting & Sensing
Seals & O-Rings
Lab / Instruments
Food / Beverage
Medical
Oil & Gas
Quality Assurance:
Spezilla's TP304 welded stainless steel tubes are produced acc. to the following process and inspection to assure our quality:
1. Chemical Composition Analysis Test With 100% PMI.
2. Solution Annealing / Bright Annealed.
3. 100% Hydrostatic Test and 100% Eddy Current Test
4. Mechanical Tests includes Tension Test, Flattening Test, Flaring Test, Hardness Test.
5. Impact Test subject to Standard request.
6. Grain Size Test and Intergranular Corrosion Test.
7. Visual Test and Endoscope Test for Surface Quality Test
Typical Manufacturing Specifications:
ASTM A249
ASTM A269
ASTM A270
EN10217-7
EN10296-2
Also individual customer specifications.
