API 7-1 Green Modified Alloy Steel Standard Drill Collar

1. Type: Standard Drill Collars, 2. Certification: API, 3. Material: Alloy Steel, 4. Color: Green, 5. Machine Type: Drilling - details see: https://www.machineto.com/api-7-1-green-modified-alloy-steel-standard-drill-collar-10317585
Place of Origin:Henan China (Mainland)Brand Name:ZZZXModel Number:API Spec 7-1Type:Drill Collar
Machine Type:Drilling ToolCertification:APIMaterial:API 7-1 Green Modified Alloy Steel,4145H alloy steelProcessing Type:Forging
Use:petroleum drilling   
API 7-1 Green Modified Alloy Steel Standard Drill Collar
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Elevator groove and slip groove made on box thread face of slick drill collar or spiral drill collar can be used as lifting sub and safety slip when trip out. The technical parameters for elevator groove and slip groove is as per API Spec 7-1 Hard banding is optional at customers request.

Drill collar ranges O.D.(mm)Elevator groove depth (mm)Elevator groove length(mm)Slip groove length(mm0Slip groove length(mm)
101.6-117.55.64.8406457
120.6-142.96.44.8406457
146.0-168.37.96.4406457
171.4-219.19.56.4406457
no less than222.211.16.4406457

API 7-1 Green Modified Alloy Steel Standard Drill Collar
Packaging Detail:As per Customer's request
Delivery Detail:7-15 days after getting your prepayment of workable L/C.

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