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Oil Drilling Collar API Standard
Negotiable
MOQ: 1 Set (Price negotiable depending on order volume and customization)
Key Specifications
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Place of Origin:
China
Brand Name:
hongsheng
Type:
Drill Collar
Payment & Shipping
Payment Methods:
Port of Shipment:
qingdao/tianjin
Delivery Detail:
Delivery time depends on order quantity.
Related Products
Place of Origin
China
Brand Name
hongsheng
Type
Drill Collar
Machine Type
Drilling Tool
Certification
API
Material
Carbon Steel
Use
Well Drilling
Specifications
oil drilling collar1.Material:AISI4145H
2.OD:79.4mm-279.4mm
3.Hardness:285-341
According to the drill collar material is divided into two kinds of shape and form.
A type (cylindrical type): Use common alloy steel pipe inside and outside are circular cross-section;
B-type (spiral): ordinary alloy steel tube outer surface with a spiral groove.
Outside diameter(in)
|
Yield Strength
(MPa)
|
Tensile strength
(MPa)
|
Elongation
(%)
|
Brinell hardness
(HB)
|
“V” Impact rate (J)
|
|
A |
3-1/8 ~ 6-3/4 |
≥758
|
≥965
|
≥13
|
285~341
|
≥54
|
B |
7 ~ 11 |
≥689
|
≥930
|
≥13
|
285~341
|
≥54
|
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Business Type
Manufacturer, Trading Company
Year Established
2011
Factory Size
1,000-3,000 square meters
Total Employees
101 - 200 People
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