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Why Can We Always Ensure Excellent Quality

Quality Control

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

Certification

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

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

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

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

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

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

Standard: ISO 9001:2015

Number: CN5747-QC

Issue Date: 2021-08-24

Expiry Date: 2024-08-23

Scope/Range: The registration covers the sales of steel.metal product and mechanical equipment

Issued By: TQCS International Pty Ltd

Standard: TUV TEST Certificate-SMLS Pipe

Number: QM-CS-01

Issue Date: 2022-11-11

Expiry Date: 2022-12-28

Scope/Range: Stainless Steel Pipe

Issued By: TUV Thuringen Shanghai

Standard: UT TESTING Certuficate-90D ELBOW

Number: F8071205

Issue Date: 2018-07-12

Expiry Date: 2016-06-16

Scope/Range: 90D ELBOW

Issued By: Shanghai Fuxin Chenmical Technology Service Co.,Ltd

Standard: Intergranular Corrosion Test -304L ELBOW

Issue Date: 2022-12-15

Expiry Date: 2025-12-15

Scope/Range: ASTM A403 Stainless Steel 304 Seamless Pipe

Issued By: Wenzhou Hainer Steel Tech Co,.Ltd

Standard: MTC ASTM A312 316L SMLS Pipe

Number: HR226400

Issue Date: 2022-10-17

Expiry Date: 2025-10-18

Scope/Range: ASTM A312 ,316L Seamless Steel Pipe

Issued By: SGS / BV / Wenzhou Zhongyuan Steel Industrial Co,.Ltd

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