4145H 79.4mm 3 1/8 in OD Non Magnetic Drill Collar for Oil Drilling Equipment
| Place of Origin: | Henan |
|---|
Company Profile
| Location: | Puyang, Henan, China (Mainland) |
|---|---|
| Business Type: | Manufacturer |
| Main Products: | Heavy Steel Forgings, Steel Forged Rings, Forging The Shaft |
Product Detail
| Model No.: | NMDC-1 |
|---|
Product Description
4145H,79.4mm,3 1/8 in Outer Diameter Non Magnetic Drill Collar for Oil Drilling Equipment
Description:
Drill collars are manufactured from 4145H modified steel.Drill collars are bored and drifted to API Spec 7-1 and fully heated to meet or exceed the mechanical property requirements of API Spec.Hardness range of 285-341HB and a charpy “V”notch impact value of 54 joules are guaranteed one inch below the surface
When enquiries or orders,please specify:
Slick or spiral ; Drill collar OD ; Drill collar bore ; Length of drill collar; Connection type
Applications:
Drilling tool stabilizer is an important tool for oil, gas and geology exploration drilling engineering to prevent well deflection. Drill collars,heavy weight drill pipe and lifting subs are tools matched with stabilizers.
Drill collars are bored and drifted to API Spec 7-1 and fully heated to meet or exceed the mechanical property requirements of API Spec.
Specifications:
1.Material:4145H,4145Mod,40CrMnMo e ct.
2. Standard size, inner diameter and thread for drill collar
|
No. |
Outer diameter |
Inner diameter |
Length |
Should chamfering diameter |
Bending |
||
|
mm |
in |
mm |
in |
||||
|
NC23-31 |
79.4 |
3 1/8 |
31.8 |
1 1/4 |
9150 |
76.2 |
2.57:1 |
|
NC26-35 |
88.9 |
3 1/2 |
38.1 |
1 1/2 |
9150 |
82.9 |
2.42:1 |
|
NC31-41 |
104.8 |
4 1/8 |
50.8 |
2 |
9150 / 9450 |
100.4 |
2.43:1 |
|
NC35-47 |
120.7 |
4 3/4 |
50.8 |
2 |
9150 / 9450 |
114.7 |
2.58:1 |
|
NC38-50 |
127.0 |
5 |
57.2 |
2 1/4 |
9150 / 9450 |
121.0 |
2.38:1 |
|
NC44-60 |
152.4 |
6 |
57.2 |
2 1/4 |
9150 / 9450 |
144.5 |
2.49:1 |
|
NC44-60 |
152.4 |
6 |
71.4 |
2 13/16 |
9150 / 9450 |
144.5 |
2.84:1 |
|
NC44-62 |
158.8 |
6 1/4 |
57.2 |
2 1/4 |
9150 / 9450 |
149.2 |
2.91:1 |
|
NC46-62 |
158.8 |
6 1/4 |
71.4 |
2 13/16 |
9150 / 9450 |
150.0 |
2.63:1 |
|
NC46-65 |
165.1 |
6 1/2 |
57.2 |
2 1/4 |
9150 / 9450 |
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