Spezilla Tube Co., Ltd. (Shanghai)
Spezilla Tube Co., Ltd. Excellence in Stainless Steel Tubing
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AISI 304 ASME SA249 63.5 X 2.11MM Welded Bright Annealed Stainless Steel Tubes, Inside Bead Removed.
ASME SA 249 standard is for welded stainless steel tubes, the tubes are installed for heat changer, boiler and condenser in heating or cooling deliver system. The tube is made starting from stainless steel strip or coil, welding both edges, forming the shape, rolls inside and outside surface, that will be shape tubes, then heat treatment and cold working process should be made conforming to this standard.
ASME SA 249 stainless steel heat exchanger, boiler and condenser tubes have various sizes with various grades, outside diameter, wall thickness, as well as length is main size requirement. custom sizes we offered for welded tubes are as below.
Outside diameter: range from 6 to 304.8 mm, custom sizes have 16, 19.05, 25.4, 31.8, 38.1, 44.45, 50.8, 76.2, 101.6 mm
Wall thickness: average thickness and minimum thickness are available, there are 0.71, 0.89, 1.0, 1.25, 1.65, 2.11, 2.77 mm.
Tolerance of outside diameter and thickness should conform to ASME SA 249 specification and ASTM A1016/M, welded tubes require precise tolerance for the specific use.
Description:
| Item Code: | SPWD-304 |
| Tube OD.: | 63.5MM, 2.5'' |
| Wall: | 2.11MM, BWG14 |
| Length: | 6000MM |
| Material: | TP304, AISI 304 |
| Standard: | 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 - 0.08 |
| 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.
Typical Applications:
Industrial Heat Exchangers
Falling Film Evaporators
Sugar
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.
