|
SFMC Stabilizers are made from premium chrome molybdenese alloy steel (except for non-magnetic style), heat treated by special procedure and obtain expected hardness, strength and impact value properties. all threads are made strictly in accordance with API specification. the hardbanding of stabilizers employ "pressed in" Tungsten Carbide alloy buttons or other anti-wear materials. All stabilizers should be ultrasonic tested.
 Integral spiral Stabilizer
SFMC Integral Spiral Stabilizers are made from AISI 4145H Modified alloy steel or Non-magnetic alloy steel, the pressed button type or applied Tungsten Carbide hardbanding on the blade facing are available. the Non-magnetic stabilizers have special hardbanding on the spiralled blade surface that the magnetic properties has been eliminated.
Manufacturing Standard: SY 5051-91
Standard Sizes and Styles for Stabilizers
OD
D1
mm |
D2
mm
|
L2
mm
|
d
mm
|
L±20mm
|
|
Short Type
|
Long Type
|
|
String style
|
Near-bit style
|
String style
|
Near-bit style
|
|
L3=150
|
L1=350
|
L3=300
|
L1=700
|
|
152.4~165.1
|
121
|
400
500
|
51
|
950
1050
|
1100
1200
|
1450
1550
|
1650
1750
|
|
190.5~200
|
159;178
|
57;71
|
|
212.7~222.2
|
159;178
|
400
500
600
|
57;71
|
950
1050
1150
|
1100
1200
1300
|
1450
1550
1650
|
1650
1750
1850
|
|
241.3~250.8
|
178
|
71
|
|
311.1
|
203;229
|
500
600
700
|
76
|
1150
1250
1350
|
1300
1400
1500
|
1750
1850
1950
|
1950
2050
2150
|
|
444.5
|
203;229
|
500
600
700
|
76
|
1350
1450
1550
|
1500
1600
1700
|
1950
2050
2150
|
2150
2250
2350
|
|
660.4
|
229
|
700
800
900
|
76
|
1950
2050
2150
|
2100
2200
2300
|
2550
2650
2750
|
2750
2850
2950
|
The Non-magnetic Integral Spiral Stabilizer would be made in accordance with above table, or as per specified by user
Mechanical properties of stabilizers
OD at
Two Ends£¨in£© |
Tensile Strength
σb
MPa
|
Yield Strength
σs
MPa
|
Elongation
δ3%
|
Reduction of area
§¶
%
|
Impact
Ak
J
|
|
4 3/4~6 1/4
|
≥965
|
≥758
|
≥13
|
40
|
≥54
|
|
7~9
|
≥931
|
≥689
|
≥13
|
40
|
≥54
|
sleeve stabilizer
 The SFMC sleeve stabilizer consists of body and sleeve which is jointed; the sleeve can be changed after fretted. The material of body is 4145H modified alloy steel. After heat treated, its Brinell hardness can reach to 285-341 and the impact value is more than 54 Joules.
Sleeve stabilizers standard sizes
Hole Size Range (in) |
DC Diameter B (in)
|
Upset Diameter A (in)
|
Bottom Neck Dia C (in)
|
Overall Length L (in)
|
Fishing Neck Length L1
|
Weight£¨kg£©
|
Sleeve Length L3 (in)
|
|
String style
|
Near-bit Style
|
|
6 1/4~7 1/2
|
4 3/4~5
|
5 3/4
|
4 3/4
|
65
|
27
|
22
|
125
|
14
|
|
8 1/2~9 7/8
|
6 1/4~6 3/4
|
7 1/2
|
6 1/4
|
65
|
27
|
22
|
220
|
14
|
|
8 1/2~9 7/8
|
3 1/2~7 1/4
|
7 3/4
|
6 1/2
|
65
|
27
|
22
|
260
|
14
|
|
12 1/4~17 1/2
|
7 3/4~8 1/4
|
9 1/4
|
7 3/4
|
66
|
27
|
22
|
370
|
16
|
|
12 1/4~17 1/2
|
8 1/2~9
|
9 7/8
|
8 1/2
|
66
|
27
|
22
|
460
|
18
|
|
14 3/4~20
|
9 1/2~10
|
11
|
9 5/8
|
66
|
27
|
22
|
550
|
22
|
Interchangeable sleeve stabilizers
SFMC interchangeable sleeve stabilizers are made of 4145H alloy steel.Heat treated to 285-341 Brinell Hardness and 54 Joules minimum impact value. All physical properties would be guaranteed 1" down the surface. The kind of stabilizer is constructed of two pieces, which are jointed, by the center connection and one sleeve. Every stabilizer is equipped with a certain size of sleeve.
Interchangeable Sleeve stabilizers standard sizes
OD
D1
mm |
D2
mm
|
L2±5mm
|
d
mm
|
L1±10mm
|
L±20mm
|
Bit Diameter
£¨in£©
|
|
190.5
|
159
|
400
500
|
57
|
750
|
1900
2000
|
7 1/2
|
|
200
|
7 7/8
|
|
212.7
|
159
178
|
400
500
600
|
57
71
|
750
|
1900
|
8 3/8
|
|
215.9
|
2000
|
8 1/2
|
|
222.2
|
2100
|
8 3/4
|
|
241.3
|
178
|
400
500
600
|
71
|
750
|
1900
|
9 1/2
|
|
244.5
|
2000
|
9 5/8
|
|
250.8
|
2100
|
9 7/8
|
|
311.1
|
203
229
|
500
600
700
|
76
|
750
|
2100
2200
2300
|
12 1/4
|
|
444.5
|
2300
2400
2500
|
17 1/2
|
Integral straight rib stabilizer
SFMC straight rib stabilizers are made of AISI 4145H alloy steel by one piece of integral bar. every stabilizer has four straight ribs that pressed Tungsten Carbide buttons or other type of hardfacing are located on the surface of the ribs. Ultrasonic inspection is performed on each stabilizer.
Integral straight rib stabilizers standard sizes
|
OD
D1
mm
|
D2
mm
|
L2
mm
|
d
mm
|
L 20mm
|
|
Short Type
|
Long Type
|
|
String Style
|
Near-bit Style
|
String Style
|
Near-bit Style
|
|
L3=150
|
L1=350
|
L3=300
|
L1=700
|
|
152.4~165.1
|
121
|
400
500
|
51
|
950
1050
|
1100
1200
|
1450
1550
|
1650
1750
|
|
190.5~200
|
159;178
|
57;71
|
|
212.7~222.2
|
159;178
|
400
500
600
|
57;71
|
950
1050
1150
|
1100
1200
1300
|
1450
1550
1650
|
1650
1750
1850
|
|
241.3~250.8
|
178
|
71
|
|
311.1
|
203;229
|
500
600
700
|
76
|
1150
1250
1350
|
1300
1400
1500
|
1750
1850
1950
|
1950
2050
2150
|
|
444.5
|
203;229
|
500
600
700
|
76
|
1350
1450
1550
|
1500
1600
1700
|
1950
2050
2150
|
2150
2250
2350
|
|
660.4
|
229
|
700
800
900
|
76
|
1950
2050
2150
|
2100
2200
2300
|
2550
2650
2750
|
2750
2850
2950
|
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