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Quality Assurance

Quality Assurance

 
01) The Mill is under operating in strict confirm to
 
ISO 9001-2000, certs issued by Lloyds
The entire process is controllable and traceable
 
 
        
02) All the export products are produced in conform to ASTM & ASME standards:
03) Steel making: Electro-arc furnace plus AOD refinery with molten steel inspected
        acc. to ASTM A761
04) Billets go through:
    a) Macrotech test according to ASTM E381
    b) Inclusion content of steel test according to ASTM E 45
    c) Average grain size test in conform to ASTM E112
    d) Determination of volume fraction in conform to ASTM E562
05) Finished products shall go through:
    a) Sampling tests on randomly basis by annealing furnace and batch No.
    b) Tension test according to ASTM A370 & ASTM E21
    c) Technical test including flaring & flattering tests
    d) Hardness test: ASTM E10 & ASTM E18
    e) Corrosion test: IGC test acc. to ASTM A262, Huey test, pitting & crevice corrosion test acc.
           to ASTM G48 under oxidizing chloride environment.
    f) Hydro pressure test, Eddy current test acc. to ASTM E426; Ultrasonic test acc. to ASTM E213
06) Inspection Equipment:

Spectro(germany)desktop Direct Reading Spectrometer
Steel pipe Water pressure tester
E204 Steel pipe Eddy current Detecting Equipment (ET)
Best-9-type ultrasonic Detecting Equipment (UT)
Hydraulic Pressure Universal Material Tester
Brinell Hardness Tester
 
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Add: Shuanglin Huzhou Zhejiang China  Zip: 313012
Tel: 0086-572-3628199  Fax: 0086-572-3625028  E-mail: sbck@163.com
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