Quality Control
QA/QC Introduction
Quality control under ISO9001-2000 system.Steel refining: Electro-arc furnace plus LD refinery with molten steel inspected acc. to ASTM A761
Billets shall go through:
Macrotech test according to ASTM E381
Inclusion content of steel test according to ASTM E 45
Average grain size test in conform to ASTM E112
Determination of volume fraction in conform to ASTM E562
Finished products shall go through:
Sampling tests on randomly basis by annealing furnace and batch No.
Tension test according to ASTM A370 & ASTM E21
Technical test including flaring & flattering tests
Hardness test: ASTM E10 & ASTM E18
Corrosion test: IGC test acc. to ASTM A262, Huey test, pitting & crevice corrosion test acc. to ASTM G48 under oxidizing chloride environment.
Hydro pressure test, Eddy current test acc. to ASTM E426; Ultrasonic test acc. to ASTM E213
Test Equipment and Facilities
Name:EF-AOD
Description:To make steel
Description:To make steel
Name:Spectrometer
Description:chemical composition analysis on billiets, bars, crude pipes and finished pipes.
Description:chemical composition analysis on billiets, bars, crude pipes and finished pipes.
Name:Plug Drawing Mill
Description:To draw the pipes and tubes to achieve desired o.d. and w.t.
Description:To draw the pipes and tubes to achieve desired o.d. and w.t.
Name:Cold Pilgering Mill
Description:To pilger the tubes to acheive better surface, mechanical performance and more pricise o.d. and w.t. tolerance.
Description:To pilger the tubes to acheive better surface, mechanical performance and more pricise o.d. and w.t. tolerance.
Name:Continuous Rolling Heat Treatment Mill
Description:To anneal the tubes, to achieve improved machanical performance, to release internal stress, and to refine the grain size.
Description:To anneal the tubes, to achieve improved machanical performance, to release internal stress, and to refine the grain size.
Name:Manual Chemical Testing Apparatus
Description:To check chemical composition.
Description:To check chemical composition.
Name:Mechanical Testing Machines
Description:Mechanical and technical testing of pipes and tubes.
Description:Mechanical and technical testing of pipes and tubes.
Name:EDDY Current Testing Mill
Description:To test defects on pipes and to mark on tubes (stenciling).
Description:To test defects on pipes and to mark on tubes (stenciling).
Name:Ultrosonic Testing Mill
Description:To test defects on pipes.
Description:To test defects on pipes.
Name:Visula Inspection On Pipes And Tubes
Description:To find the defects visually.
Description:To find the defects visually.
Name:Packing Of Pipes & Tubes
Description:All small tubes are packed in plastic bags to avoid scratches in transporting; then in wooden cases.
Description:All small tubes are packed in plastic bags to avoid scratches in transporting; then in wooden cases.
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Contact Us
Huzhou Xinyaohua Stainless Steel Pipes & Tubes Co., Ltd.
[China]
Street Address : Changchao Industrial Park,Hefu Town
City : Huzhou
Province/State : Zhejiang
Country/Region : China