Spezilla Tube Co., Ltd. 

Excellence in Stainless Steel Tubing


Spezilla Tube Co., Ltd. (Shanghai) Quality Control

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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QC Profile

At Spezilla, all our finished products undergo extensive and strict quality tests before being delivered to our customers. Mill Test Certificate EN10204 3.1 or EN10204 3.2 which contains the result of the mechanical tests and hydrostatic test will be provided to our customers. Whatever tube you require, it will be thoroughly analysed and tested by our staff. For reference, these are the main tests we offer:


Test On Tubes

NDT Testing

DT Testing

Chemical Analysis

Reverse Bend Test

Eddy Current Test

Flange Test

Hydrostatic Test

Flaring Test

Air Under Water

Flattening Test

Ultrasonic Test

Tensile Test


Hardeness Test





Technical References



Technical reference norm for heat-treated tubes to be used for heat exchangers and boilers.


Raw material technical specifications (strip).


General reference standard for welded stainless steel circular tubes for pressure equipment.


Welded circular steel tubes for mechanical and general engineering purposes.

PED 97/23/EC

AD 2000


European pressure equipment directive.

German pressure equipment directive.

EN 10246-3
DIN 54141

Process control (Eddy current or Foucault current test) with cutting and automatic selection of tube with possibile surface variations.

Non destructive test, carried out on the production line.

EN ISO 8493

Diameter expansion test, 30% minimun, without detecting cracks.

Destructive test, carried out on samples out of the production line.

EN ISO 8492

Back bending test of the welding area.

Destructive test, carried out on samples out of the production line.

EN 10204

Metallic materials: types of inspection documents.

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

Contact Person: Mr. Will Ma

Tel: +86 13918539222

Send your inquiry directly to us (0 / 3000)