Customization: | Available |
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Manufacturing Process: | Forging |
Operation Pressure: | Atmospheric Pressure |
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Non Magnetic Drill Collar
ShunFu offers special nonmagnetic collars for MWD, LWD and FEWD applications, which are manufactured to the customers specification and design. These collars are used extensively for directional drilling, drilling horizontal wells and formation evaluation. Our modern facilities allow us to produce even the most difficult tools according to our customers specifications.Element | P530 P530 HS |
P550 | P580 | P750 | P750I |
Carbon | max. 0.05 | max. 0.06 | max. 0.06 | max. 0.03 | max. 0.03 |
Manganese | 18.50-20.00 | 20.00-21.60 | 22.00-24.50 | 1.50-3.00 | 1.50-3.00 |
Chromium | 13.00-14.00 | 18.30-20.00 | 22.00-24.50 | 26.50-29.50 | 26.50-29.50 |
Molyddenum | 0.40-0.60 | min. 0.50 | max. 1.50 | 2.00-4.00 | 2.00-4.00 |
Nitrogen | 0.25-0.40 | min. 0.60 | max. 0.75 | min. 0.20 | min. 0.20 |
Nickel | max. 1.50 | min. 2.00 | max. 2.50 | 28.00-31.50 | 28.00-31.50 |
Element | P530 | P530 HS | P 550 | P 580 | P750 | P750 I* |
Yield strength min KSI 3 1/2 to 6 7/8 OD 7" to 11" OD |
110 100 |
120 110 |
140 130 |
140 130 |
140 130 |
min 155 |
Tensile strength KSI 3 1/2 to 6 7/8 OD 7" to 11" OD |
120 120 |
130 130 |
150 150 |
150 150 |
150 150 |
min 160 |
Elongation min % 3 1/2 to 6 7/8 OD 7" to 11" OD |
25 25 |
25 25 |
20 20 |
20 20 |
15 15 |
10 10 |
Reduction of area min. % | 50 | 50 | 50 | 50 | 50 | 50 |
Impact energy min. ft. lb. | 90 | 90 | 60 | 60 | 100 | 80 |
Hardness - Brinell | 260-350 | 285-365 | 300-430 | 350-450 | 300-400 | 300-410 |
Endurance strength min. KSI/N=107 /N=105 |
- - |
+/-50 +/-60 |
+/-60 +/-80 |
+/-60 +/-80 |
+/-60 +/-80 |