EN10217-7 SS304 1.4301 Welded Tube,Stainless Steel Tube BA finished

EN10217-7 tubes will be manufactured from hot or cold rolled plate, sheet or strip 1D, 2D, 2E, 2B surface, by longitudinally arc or laser welding.We use automatic TIG welding type to weld tubes, and remove inside seam and external seam, making inner and outer surface more smooth and perfect roughness.

When tube is finished, chemical composition analysis should be carried out according to EN 10217-7, to ensure the correct grade by direct-reading spectrometer or PMI tester.

The tolerance on outside diameter and wall thickness of tubes should be limited according to EN ISO 1127, precise tolerance should be minimized as much as possible, which has a perfect performance for many applications.

EN10217-7 SS304 1.4301 Welded Tube

Quality Assurance:

Spezilla's 1.4301 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

EN10357

Our specialists in the surface treatment department ensure the best workmanship, high surface quality and guaranteed hygiene safety in all common nominal diameters from DN 10 to DN 300. For a consistently high surface quality we rely on a fully automatic pipe grinding shop.

We offer top quality and short delivery times!

Our stainless steel tubes are available in the following versions:

CC: unannealed, etched inside and outside,
CD: unannealed, etched inside and polished outside,
BC: annealed, etched inside and outside,
BD: annealed, etched inside and polished outside,

EN 10217-7 Common Steel Grades And Equivalent AISI Grades

Chemical Composition 1.4301 Welded Stainless Steel Tube:

Mechanical Property 1.4301 Welded Stainless Steel Tube:

Spezilla specialise in manufacturing high quality precision stainless steel tube and other corrosion resistant alloy tubes that are designed to industry and customer specifications. Our products are manufactured to the highest quality standards and are very competitively priced. Our mission is to provide customized, flawless, reliable, and affordable corrosion resistant steel tubes to the world.

Tube Type:            Welded, Welded & Drawn. Straight Length or Coils.

Tube Materials:      Austenitic:    304, 304L, 316L, 321, 316Ti, 317L, 904L, 254 SMO;

                                                   1.4301, 1.4307, 1.4401, 1.4404, 1.4541, 1.4571, 1.4539, 1.4547;

                              Duplex:         2205, 2507;  1.4462, 1.4410;  

                              Ferritic:         409, 439, 441, 444; 1.4512, 1.4510, 1.4509, 1.4521;

                              Nickel Alloy:  800, 800H, 800HT, 825, C276; 1.4876, 1.4958, 1.4959, 2.4858, 2.4819;

                              Titanium:       Gr.1, Gr.2;

Tube Size:              O.D. 4.00 - 38.10MM, W.T. 0.30 - 3.0MM.

Tube Finish:           As Welded, Bright Annealed, Annealed & Pickled, Polished, Custom Cutting.

Tube Standards:    ASTM A249, A268, A269, A270, A688, A789, B338;

                               EN 10217-7 TC1 & TC2, EN 10296-2, EN10357 etc.

Applications:          Heat Exchangers, Food & Beverage, Heating Elements, Automative, Tube Manipulation etc.

Spezilla appreciates the opportunity to help you with your questions about our operations, our products, our services or any other aspect of our business. We understand the demands of placing orders and the need for fast quotes, so we guarantee a response in 24 hours or less.