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Tungsten Alloy Anticorrosion /Anti-galling Tubing Coupling

1, the structure: API standard inner tube and the outer surface of the threaded couplings deposited tungsten alloy layer.
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Product description
1, the structure:
API standard inner tube and the outer surface of the threaded couplings deposited tungsten alloy layer.
 
2, the performance indicators:
The basic properties: size, precision thread sealing meet API standards ;
Threaded connection: Thread has good release buckle sex ;
Corrosion properties: anti H2S / CO2 temperature corrosion resistance to salt water corrosion, alkali, corrosion resistance, weak acid corrosion, NACE 0177 to meet the standard requirements for corrosion resistance ;
Tungsten alloy layer and the substrate binding: according to GB / T5270-2005 testing, coating does not crack, not falling ;
Appearance: uniformly bright, silvery white ;
Tungsten alloy layer thickness: <30μm ;
Tungsten alloy layer surface hardness: ≥650HV ;
 
3, performance testing
User testing feedback ;
Customer Unit: Shengli Oilfield Highland Petroleum Equipment Co., Ltd ;
Product Name: plated tungsten alloy tubing coupling Executive Standard: GB / T9253.2-1999 API SPEC 5B ;
 
Test results
Thread: meet the standard requirements;
Close connection test: 46Mpa pressure seal does not leak;
Shackle on trial: the shackle 13 sticky buckle;
 
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