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EN10217-7 SS304 1.4301 BA finished Welded Stainless Steel Tube

Very competitive price and the tubes are well polished, we are very satisfied with Spezilla from our cooperation since year 2010.

—— Nathalie Gulli - Mexico

Spezilla supports our group very well, and now we are approved supplier of goverment, they are reliable and flexible! Spezilla always answers!

—— Jaime Arias - Argentina

Good quality, fast delivery, Spezilla has been supplying heat exchanger tubes for our projects since 2008, we really appreciate your support!

—— Massimiliano Rossi - Italy

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EN10217-7 SS304 1.4301 BA finished Welded Stainless Steel Tube

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

Large Image :  EN10217-7 SS304 1.4301 BA finished Welded Stainless Steel Tube

Product Details:
Place of Origin: CHINA
Brand Name: SPEZILLA
Certification: ISO9001, TS16949, PED, AD2000
Model Number: WLD
Payment & Shipping Terms:
Minimum Order Quantity: 500KGS
Packaging Details: WOODEN BOXED
Delivery Time: Ex-Mill 15 - 30DAYS
Payment Terms: T/T, L/C
Supply Ability: 100TONS/MONTH
Detailed Product Description
Standard: EN10217-7 Material Grade: SS304 1.4301
Size Range: 15-204mm Finishing Options: Bright Annealing, Pickling, Polishing, Custom Cutting
Test Certificate: EN10204 3.1 Packaging: Wooden Box, Bundled, Export Packaging Available
Product Name: Welded Stainless Steel Tube Quality Assurance: 100% ET
High Light:

204mm Welded Stainless Steel Tube


EN10217-7 welding sanitary tubing


1.4301 welding thin wall stainless steel tubing

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

Standard EN 10217-7
Tube Type Welded Tube
Grades 1.4301, 1.4307, 1.4404, 1.4541, 1.4571, 1.4462
Finishing As Welded, Annealing Pickling, Bright Annealing, Polished
Outside Diameter 6 To 204 MM
Thickness 0.5 To 4 mM

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:








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

Steel Name Steel Number AISI Grade
X2CrNi18-9 1.4307 304L
X5CrNi18-10 1.4301 304
X2CrNiMo17-12-2 1.4404 316L
X6CrNiTi18-10 1.4541 321
X6CrNiMoTi17-12-2 1.4571 316Ti
X2CrNiMo18-15-4 1.4438 317L
X2CrNiMoN22-5-3 1.4462 2205

 Chemical Composition 1.4301 Welded Stainless Steel Tube:


Chemical Element % ( Weight )
Carbon (C) 0.0 - 0.08
Chromium (Cr) 17.500 - 19.50
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 1.4301 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


EN10217-7 SS304 1.4301 BA finished Welded Stainless Steel Tube 0


Contact Details
Spezilla Tube Co., Ltd. (Shanghai)

Contact Person: Will Ma

Tel: +86 13918539222

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