Spezilla Tube Co., Ltd. (Shanghai)
Spezilla Tube Co., Ltd. Excellence in Stainless Steel Tubing
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EN 1.4307, ASTM TYPE 304L / UNS S30403 10 X 1.5MM Welded Precision Stainless Steel Tubing
304L/4307 Welded Precision Stainless Steel Tubing 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. 304L/4307 may suffer from uniform corrosion in strong mineral acids and hot strong alkaline solutions.
Due to its low carbon content, the risk of sensitisation for intergranular corrosion after welding sheets up to 6 mm thick is strongly reduced when compared to other austenitic CrNi standards grades with normal carbon content.
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, and crevice geometry, if applicable. For a short period of time, for instance during cooking of food in stainless steel dishes, 304L/4307 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 304L/4307.
304L/4307 can be readily formed and fabricated using a full range of cold forming operations. It can be used in heading, drawing, and bending. Any cold forming operations will increase the strength and hardness of the material and may leave it slightly magnetic. Work hardening is accentuated by the partial transformation of the austenite phase of the material to hard martensite.
Description:
| Item Code: | SPW-EN-1.4307 |
| Tube OD.: | 10MM |
| Wall: | 1.5MM |
| Length: | 6000MM |
| Material: | 1.4307 / TP304L |
| Standard: | EN10217-7 / ASTM A249 / ASME SA249 |
| Finish: | BA / Bright Annealed. |
| Type: | Welded |
| Certification: | ISO9001:2015 |
| Mill Test Certificate: | EN10204 3.1 |
| Packing: | Sleeved, Wooden Boxed |
| Chemical Element | % ( Weight ) |
| Carbon (C) | 0.0 - 0.030 |
| Chromium (Cr) | 17.50 - 19.50 |
| Manganese (Mn) | 0.0 - 2.00 |
| Silicon (Si) | 0.0 - 1.00 |
| Phosphorous (P) | 0.0 - 0.045 |
| Sulphur (S) | 0.0 - 0.03 |
| Nickel (Ni) | 8.00 - 10.50 |
| Nitrogen (N) | 0.0 - 0.10 |
| Iron (Fe) | Balance |
| Mechanical Property | Value |
| Proof Stress | 180 Min MPa |
| Tensile Strength | 470 to 670 MPa |
| Elongation A50 mm | 40 Min % |
| Hardness | 90 Max HRB |
Available Tube Product Forms:
Straight.
Coiled.
Seam welded and cold redrawn.
Seam welded, cold redrawn and annealed.
Quality Assurance:
Spezilla's 1.4307, AISI 304L welded precision 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 Applications:
Food and beverage industry equipment
Chemical and pharmaceutical industry equipment
Heat exchangers
Typical Manufacturing Specifications:
ASTM A249
ASTM A269
EN10217-7
EN10296-2
Also individual customer specifications.
