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Wenzhou Zhongyuan Steel Industrial Co.,Ltd
Wenzhou Zhongyuan Steel Industrial Co,.Ltd HAINER STEEL INDUSTRIAL CO.,LTD First Quality: SS Pipe,Plate,Fittings,Boiler & Heat Exchanger Tube ... First Service: 904L,2205,310S,316L,304L,17-4PH,17-7PH
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Wenzhou Zhongyuan Steel Industrial Co.,Ltd Quality Info

Wenzhou Zhongyuan Steel Industrial Co.,Ltd
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Wenzhou Zhongyuan Steel Industrial Co.,Ltd
City: Wenzhou
Province/State: Zhejiang
Country/Region: China
Tel: 86-577-8895-9737
Contact Person:
Mr Mark Fuel
Quality Control

 

Wenzhou Zhongyuan Steel Industrial Co,.Ltd & HAINEAR STEE INDUSTRIAL CO.,LTD had a series of testing to controal the quality all products before packing and delivery

Like Stainless Steel Seamless Pipes,we have main 3 parties inspection test plain ( ITP )

 

 

Part 1:For the raw material (Round Bars And Pipe Billet - For Seamelss Pipe Only),

we have two parties to test the quality

 

 

A: Test Of Chemical Compositioin

B: Test Of Mechanical Properties

    This test included

     -- Yield Strength Rt 0.5 M Pa ( Psi ), Mini requirements

     -- Tensile Strength Rm M Pa ( Psi ), Min requirements

     -- Elongation ( % ), Min requirements

 

Part 2: During production pipes,we have kinds of testing to control the quality,

The test included (Both Seamless And Welded Pipes)

 

 

-- Pipe surface both outside and inside

-- Tolerance of OD,W.T

-- Size ( Outside diameter, Wall thickness, Length )

-- Chemical Composition

-- Mechanical Properties

 

 

If pipe is stainless steel welded pipe,wel also have additional inspection

 

-- Online Ultrasonic Inspection

-- Visual Inspection For Outside Seaml ( times )

-- Visual Inspection For Inside Seam ( times )

-- X-Ray Inspection For Welding Seam

 

 

Part 3: Final Production of pipes,we have below testings in order to reach the quality meet to buyer's requirements

 

 

-- Test Of Pipe Body ( Both Seamless And Welded Pipes )

 

 

1.Yield Strength (M pa),Min requirements   

2. Tensile Strength (M pa),Min requirements  

3. Elongation (%),Min requirements   

4. Hydro-static or Nondestructive Electric Test   

5. IGC (Inter-Granular Corrosion Test)   

6. Ultrasonic Test (If buyer requested)   

7. Eddy Current Test (If buyer requested)

If the pipe is welded pipe,we also need to test welded seam both Tensile Strength and Yield Strength mini requirements

 

Certifications

Wenzhou Zhongyuan Steel Industrial Co.,Ltd Certifications
Standard: ISO 9001:2000
Number: 0105Q15078R0S/3205
Issue Date: 2012-12-28
Expiry Date: 2015-12-27
Scope/Range: The Quality Management System Applies In the Following Area: Production And Service Of Stainless Steel Tube,Valve&Pipe Fittings
Issued By: China Quality Certification Center
Wenzhou Zhongyuan Steel Industrial Co.,Ltd Certifications
Standard: IGC TEST Certificate-SMLS Pipe
Number: JW1207035
Issue Date: 2012-07-17
Expiry Date: 2015-07-16
Scope/Range: Inter-Granular Corrosion Test According To ASTM A-262 Practice E For Stainless Steel Pipe
Issued By: Center For Quality Testing Of Stainless Steel Products,Z.J Province Of China
Wenzhou Zhongyuan Steel Industrial Co.,Ltd Certifications
Standard: CCPIT Certificate
Number: 133303B0/03722
Issue Date: 2013-06-17
Expiry Date: 2016-06-16
Scope/Range: Certify Kinds Of Commercial Invoice: SS Pipe, SS Plates/Coils/, SS Pipe Fittings ect.
Issued By: China Council For The Promotion Of International Trade China Chamber Of International Commerce
Wenzhou Zhongyuan Steel Industrial Co.,Ltd Certifications
Standard: MTC EN 10204:2004/3.1 ASTM A312 TP304/304L SMLS Pipe
Number: ZYJW1305118
Issue Date: 2013-05-23
Expiry Date: 2016-05-22
Scope/Range: ASTM A312 Stainless Steel Seamless&Welded Pipe
Issued By: Wenzhou Zhongyuan Steel Industrial Co,.Ltd / SGS / BV
Wenzhou Zhongyuan Steel Industrial Co.,Ltd Certifications
Standard: MTC EN10204:2004/3.1 ASTM A312 TP316/316L SMLS Pipe
Number: ZYJW1305118
Issue Date: 2013-05-23
Expiry Date: 2016-05-22
Scope/Range: ASTM A312 Seamless&Welded Stainless Steel Pipe
Issued By: SGS / BV / Wenzhou Zhongyuan Steel Industrial Co,.Ltd
Wenzhou Zhongyuan Steel Industrial Co.,Ltd Certifications
Standard: MILL TEST CERTIFICATE ASTM A240A NO.1 FINISH -316L SS Plates
Number: ZYPK141030315035
Issue Date: 2014-11-01
Expiry Date: 2017-10-31
Scope/Range: ASTM A240A Stainless Steel Pipe/Sheets/Coils
Issued By: Wenzhou Zhongyuan Steel Industrial Co,.Ltd

Company Profile

Wenzhou Zhongyuan Steel Industrial Co.,Ltd

Tel:86-577-8895-9737

Fax:86-577-8895-9771

Contact Person: MrMark Fuel

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