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Wenzhou Zheheng Steel Industry Co.,Ltd Quality Control

your stainless steel pipe really as good as Europe and the United States market, I have already listed your company as our core supplier.

—— --USA--Tony

I am so satisfied with your quality when i first visit your factory in china,and your price are same absorbing.

—— --Brazil--José Tadeu

This is our fourth cooperation this year, and I'm very glad that you can deliver the goods on time and even in advance.

—— --Venezuela--lucy sam

i am so happy because i am found a really manufactuer who are specialized in thin wall seamless large diameter stainless steel pipes. god bless

—— --United Arab Emirates --Hevel

Hi Bain.You are a trustworthy person and I am very happy to cooperate with you.

—— --Russia--aleksandr

ZheHeng steel ,Stable quality, reasonable price, a great company.

—— --Chile--andrea

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QC Profile

In order to meet the customer's requirements, the inspector carries out the final inspection and testing of the finished pipe according to the product standards executed by the customer's order.



According to the requirements of the standard, the chemical composition of the blank to the finished product is analyzed, the material is strictly controlled, the mechanical properties and chemical composition of the finished product are tested item by item, and the eddy current and ultrasonic non-destructive testing are performed to ensure the product quality.

 

The inspector checks the inner and outer surfaces of the finished product, the end shape, the bending degree, the length of the fixed length, the outer diameter and the wall thickness according to the technical conditions and requirements of the product standard. After the product has passed the inspection, the product quality manual will be issued to ensure that the customer can use the satisfactory and reliable products.

 

Certifications
  • Standard:PED

    Number:DGR-0036-QS-W856/2018/MUC

    Issue Date:2018-10-11

    Expiry Date:2019-10-10

    Scope/Range:seamless stainless steel pipes

    Issued By:TUV

  • Standard:PED

    Number:DGR-0036-QS-W856/2018/MUC

    Issue Date:2018-10-11

    Expiry Date:2021-10-10

    Scope/Range:seamless stainless steel pipes

    Issued By:TUV

  • Standard:AD2000-1

    Number:256333

    Issue Date:2015-05-28

    Expiry Date:2018-09-28

    Scope/Range:seamless stainless steel pipes

    Issued By:LIOYD S

  • Standard:AD2000-2

    Number:256333

    Expiry Date:2018-09-28

    Scope/Range:seamless stainless steel pipes and tubes

    Issued By:TUV

  • Standard:DNV

    Number:AMMM000010D

    Issue Date:2016-11-28

    Expiry Date:2019-10-27

    Scope/Range:Austenitic stainless steel pipe

    Issued By:DNV.GL

  • Standard:GOST

    Number:199441

    Issue Date:2015-11-19

    Expiry Date:2018-11-18

    Scope/Range:seamless stainless steel pipes

    Issued By:GOST

  • Standard:PED --FITTINGS

    Number:DGR-0036-QS-W801/2017/MUC

    Issue Date:2017-06-09

    Expiry Date:2020-06-08

    Scope/Range:stainless steel pipe fittings

    Issued By:TUV-INDUSTRY SERVICE

  • Standard:PED --FITTINGS

    Number:DGR-0036-QS-W801/2017/MUC

    Issue Date:2017-06-09

    Expiry Date:2020-06-08

    Scope/Range:stainless steel pipe fittings

    Issued By:TUV-INDUSTRY SERVICE

Contact Details
Wenzhou Zheheng Steel Industry Co.,Ltd

Tel: 86-158-58820108

Fax: 86-577-86655371

Send your inquiry directly to us (0 / 3000)