API 7-1 10"spiral drill collars AISI 4145H Modified ally steel
Quick details:
1.Standard: API Spec 7-1
2.Material: AISI 4145 H Modified Alloy Steel
3.Export Percentage: 95%
4.Supply Ability: 1000 sets per month
5. Main Market: Middle East, North America, Europe
6. Delivery time: 10 days in stock, 30 days after advance payment
FACTORY DERICTLY!!
Usage :
One of the most important components of the drill string is to provide drilling bit of pressure and the drill string rigid role.
Specification :
Standard size ,bores and connectionfor drill collars | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Mechanical Property :
Mechanical Property of Slick and Spiral drill collars made of AISI 4145 H
OD Range | Yield Strength MPa | TensileStrength MPa | Elongation % | Hardness HB | Impact Test J | |
mm | in | |||||
79.4171.4 | 31/863/4 | ≥758 | ≥965 | ≥13 | 285341 | ≥54 |
177.8279.4 | 711 | ≥689 | ≥930 | ≥13 | 285341 | ≥54 |
Mechanical Property of Non-mag Drill Collars
OD Range | Yield Strength MPa | TensileStrength MPa | Elongation % | Hardness HB | Impact Test J | |
mm | in | |||||
79.4171.4 | 31/863/4 | ≥758 | ≥827 | ≥18 | ||
177.8279.4 | 711 | ≥689 | ≥758 | ≥20 | ||
Warrenty:
Generally, our goods is one year warrenty after received the goods.
Quality control or assurance:
In order to keeping competition and developing, the basic is to improve any possible aspects such as company quality, we place an emphasis on elements includes controls, job management, defined and well managed processes, performance and integrity criteria and identification of records, on competence includes knowledge, skills, experience and qualifications, on soft elements includes personnel integrity, confidence, organizational culture, motivation, team spirit and quality relationship. 
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