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Corrosion Resistant Tungsten Alloy Rod Coupling
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Petroleum machinery
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Product description
1.Structure:
API standard couplings outer surface deposition of tungsten alloy layer.
2. Performance indicators:
The basic properties: size, accuracy according to API standard thread
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
Wear performance: good wear resistance, superior or equivalent to chrome.
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:> 40μm
Tungsten alloy layer surface hardness: ≥600HV
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