Tungsten alloy anti-corrosion and wear-resistant sucker rod
Classification:
Key words:
Hunan Nafel_Nafel_Tungsten Alloy Casing
1. Features: ● Effectively improve its corrosion resistance; ● Effectively improve its ability to resist eccentric wear; ● Due to the high strength (yield strength and tensile strength are both greater than 2Gpa) and no cracks on the surface of amorphous tungsten alloy, the fatigue life of the sucker rod is greatly enhanced-under corrosive environment, the service life exceeds 1 million times! 2. Structure ● Tungsten alloy layer is deposited on the outer surface of API standard sucker rod, and the threads at both ends are protected. 3. Performance index: ● Mechanical properties: the substrate meets API standards ● Anticorrosion performance: H2S/CO2 high temperature corrosion resistance, salt water corrosion resistance, alkali corrosion resistance, weak acid corrosion resistance, meeting the corrosion resistance requirements NACE0177 the standards ● Wear resistance: better wear resistance, equivalent to hard chromium layer. ● Binding force between tungsten alloy layer and substrate: tested according to GB/T5270-2005, the coating does not crack or fall off ● Appearance: uniform and bright, silvery white. ● Tungsten alloy layer thickness: 30-50μm 4. Performance testing ● Wear resistance and corrosion resistance test: passed various corrosion resistance and wear resistance tests conducted by Xi 'an Pipe Institute, Xi 'an Moore Laboratory and Mechanical Industry Surface Coating Product Quality Supervision and Testing Center. ● Mechanical performance testing: passed the testing project of the national oil and gas wellhead equipment quality supervision and inspection center for testing hydrogen sulfide corrosion cracking and hydrogen sulfide stress cracking testing (Xi' an moore petroleum engineering laboratory). according to the standard testing organization anti-SCC performance evaluation NACE Standard TM 0177-2005ISO 7539-2:1989 Xi' an moore petroleum engineering laboratory concluded that when H2S partial pressure is 4MPa,CO2 partial pressure is 3MPa, temperature is 140 ℃, P110 is simulated in corrosive environment medium, the uniform corrosion rates of S135 tungsten alloy coated steel pipe are 0.0118mm/a and 0.0127mm/a, respectively. Under the condition of 85% YSMIN applied stress, after 720 hours of hydrogen sulfide stress corrosion cracking test, no macroscopic fracture was found in all samples. Wear resistance testing (Wuhan Institute of Materials Protection) testing items are based on the standard testing organization friction coefficient and wear amount ASTMG * 9-95a(2000)el Wuhan Institute of Materials Protection. Compared with chromium plating, tungsten alloy samples have the smallest friction coefficient and wear amount and the best wear resistance. Mechanical performance testing (national oil and gas wellhead equipment quality supervision and inspection center) testing items are based on the standard testing organization mechanical performance, thread size SY/T 5029-2006 national oil and gas wellhead equipment quality supervision and inspection center conclusion meets the standard requirements
Product Details
1. Features:
Effectively improve its corrosion resistance;
Effectively improve its ability to resist eccentric wear;
● Due to the high strength of the surface amorphous tungsten alloy (yield strength, tensile strength are greater than 2Gpa), no cracks, so that the fatigue life of the sucker rod is greatly enhanced-corrosive environment, more than 1 million times of service life!
2. Structure
● The tungsten alloy layer is deposited on the outer surface of API standard sucker rod, and the threads at both ends are protected.
3. Performance indicators:
● Mechanical properties:Substrate meets API standards
● Corrosion resistance:H2S/CO2 high temperature corrosion resistance, salt water corrosion resistance, alkali corrosion resistance, weak acid corrosion resistance, meet the standard NACE 0177 corrosion resistance requirements
● Wear resistance:Better wear resistance, equivalent to hard chrome layer.
● Binding force between tungsten alloy layer and substrate:The test shall be carried out according to GB/T5270-2005, and the coating shall not crack or fall off.
● Appearance:Uniform bright, silvery white.
Tungsten alloy layer thickness:30-50μm
4. Performance testing
● Wear and corrosion resistance test:It has passed various corrosion resistance and wear resistance tests of Xi'an Pipe Institute, Xi'an Moore Laboratory and Mechanical Industry Surface Coating Product Quality Supervision and Inspection Center.
● Mechanical performance testing:It has passed the inspection of the National Oil and Gas Wellhead Equipment Quality Supervision and Inspection Center.
Hydrogen Sulfide Corrosion Cracking and Hydrogen Sulfide Stress Cracking Detection (Xi'an Moore Petroleum Engineering Laboratory)
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Test Items
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According to the standard
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Testing institutions
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Evaluation of anti-SCC performance
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NACE Standard TM 0177-2005
ISO 7539-2:1989
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Xi'an Moore Petroleum Engineering Laboratory
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Conclusion
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The uniform corrosion rates of P110 and S135 tungsten alloy coated steel pipe materials are 0.0118mm/a and 0.0127mm/a respectively in simulated corrosive environment medium under H2S partial pressure of 4MPa,CO2 partial pressure of 3MPa and temperature of 140 ℃.
Under the condition of 85% YSMIN applied stress, after 720 hours of hydrogen sulfide stress corrosion cracking test, no macroscopic fracture was found in all samples.
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Wear resistance testing (Wuhan Institute of Materials Protection)
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Test Items
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According to the standard
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Testing institutions
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Friction coefficient and wear amount
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ASTMG*9-95a（2000）el
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Wuhan Institute of Materials Protection
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Conclusion
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Compared with chromium plating, the friction coefficient and wear amount of tungsten alloy samples are the smallest, and the wear resistance is the best.
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Mechanical performance testing (National Oil and Gas Wellhead Equipment Quality Supervision and Inspection Center)
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Test Items
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According to the standard
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Testing institutions
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Mechanical properties, thread size
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SY/T 5029-2006
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National Oil and Gas Wellhead Equipment Quality Supervision and Inspection Center
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Conclusion
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Comply with standard requirements
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Message consultation
Service Hotline:
Hunan Nafel New Material Technology Co., Ltd.
Company office address: 27th floor, west tower, Hunan business council building, 569 furong middle road section 3, Yuhua district, Changsha city, Hunan province
Address: Changde Surface Treatment Industrial Park, Songlin Road, Changde Economic Development Zone, Hunan
Telephone:+860731-82712276
web site: wear. Web site, anti-corrosion wear. web site, electroplated tungsten alloy. Website, Nafel. Website