6. Ultrasonic Testing
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Section : Rotary Shoulder 4/6
Approval
Subject : Ultrasonic of RSC
Revision No :
Date:1st June 2000
: 3
PTSCOS/06-2000
SUBJECT: ULTRASONIC TESTING OF ROTARY SHOULDERED CONNECTIONS 1.0
PURPOSE
1.1
To establish a standard procedure for the ultrasonic testing of rotary shouldered connections to detect service-induced discontinuities.
2.0
APPLICATION
2.1
Unless otherwise specified by customer, this procedure is applicable to the ultrasonic testing of rotary shouldered connections in both ferromagnetic and nonmagnetic materials.
2.2
If the customer specifies another procedure, it shall be denoted on the connection report.
3.0
ASSOCIATED MATERIALS
3.1
RSC Inspection Procedure,RP 7G.
4.0
GENERAL
4.1
If ultrasonic testing is to be performed in conjunction with magnetic particle and/or liquid penetrant inspection, the order in which the tests are performed is not important. However, the connections should be cleaned as necessary after each inspection to remove any residue that would affect the next test.
4.2
A proper calibration standard is one made of the same or similar material with the same or similar heat treatment as the material to be inspected.
4.3
To select the proper calibration standard, it is necessary to be reasonably sure of the type of material to be tested. The size an type of connection must also be known. Table 4.3 lists the range of size and type of connection covered by each calibration standard.
4.4
Each calibration standard is a standard rotary shouldered connection with a series of notches machined in the thread roots. The series of notches consists of three .010” deep notches located at varying distances from the pin end or box shoulder. There is a fourth notch, .020” deep, located in the same thread root as the .010” notch at the maximum distance from the pin end or box shoulder. The series of three .010” notches is used at maximum distance is used to set system sensitivity, and the .020” notch is used for comparison purposes. TABLE 4.3 Range of RSC UT Calibrataion standards
Item No : PTSCOS, ROTARY-4/06-6/2000
Page 1 of 5
Section : Rotary Shoulder 4/6
Approval
Subject : Ultrasonic of RSC
Revision No :
Size & Type of Standard NC 46
Date:1st June 2000
: 3
PTSCOS/06-2000
Size & Type of connections covered by standard NC 23 Thru NC 50, 4FH, 5 ½ IF, 6 .5/8 IF , 3/8 Thru 4 .1/2 SH, 3.1/2 thru 5.1/2 double SL
4 ½ Reg
2 3/8 thru 4 ½ Reg, 4 ½ FH, NC 56 Thru NC 77
5 ½ FH
5 ½ FH, 6 5/8 Reg, 6 5/8 FH
5 ½ Reg
5 ½ Reg, 7 5/8 Reg, 8 5/8 Reg
4 ½ H-90
3
7 – H – 90
7 Thru 8 5/8 H – 90
½ Thru 6 5/8 H – 90
5.0
PROCEDURE
5.1
Prior to calibration, visually examine the plastic wedge to assure adequate couplant between the wedge and transducer. If air bubbles are observed, disassemble the transducer from the plastic wedge and apply sufficient couplant to the mounting surface of the wedge. Reassemble the transducer to the wedge, again observing that complete coupling occurs.
5.2
Activate the couplant valve and verify that couplant flows freely from the outlets in the plastic wedge.
5.3
Calibration of the ultrasonic testing system shall be performed each time the flaw detector is turned on, prior to performing the initial inspection, and each time a change in calibration standard is required. Verification of calibration against the standard shall be performed after every tenth connection inspected and at the end of each job.
5.4
Using the proper calibration standard, obtain “peak” signal from the .010” notch at maximum distance bu adjusting the angle of the transducer.
5.5
Set system sensitivity to obtain a 25% amplitude signal from the .010” notch at the maximum distance.
5.6
Using the three .010” notches at varying distances, set the time varied gain (TVG).
Item No : PTSCOS, ROTARY-4/06-6/2000
Page 2 of 5
Section : Rotary Shoulder 4/6
Approval
Subject : Ultrasonic of RSC
Revision No :
Date:1st June 2000
: 3
PTSCOS/06-2000
5.7
Return to the .010” notch at maximum distance and adjust the gain as required to obtain a 25% amplitude signal.
5.8
Set the gate start as close as possible to the interface signal. This should be approximately 1 ½” .
5.9
Adjust gate width to sufficiently cover the entire length of the threads to be inspected.
5.10
Adjust gate level to approximately 5% less than the signal amplitude of the . 010” notch at Maximum distance ( refer to Paragragh 5.7).
5.11
Adjust the reject level as required to eliminate excess grass along the baseline. Do not exceed 20% reject level.
5.12
All indications in excess of the gate threshold level shall be marked for further investigation and disposition.
5.13
All indications marked shall be investigated with magnetic particle or penetrant inspection, as applicable. Disposition shall be performed in accordance with FI-012. Any ultrasonic indication that cannot be verified by other means shall be dispositioned as follows : A. If the signal amplitude is less than 50% of full screen height (FSH), the disposition shall be “use as is” B. If the signal amplitudeis equal to or greater than 50% of FSH, the disposition shall be “reject”.
5.14
After disposition, all parts should be marked as applicable for their particular classification. A report shall be generated detailing the inspection results. Remaining couplant should be removed from the test surfaces.
SUBJECT: ULTRASONIC TESTING OF ROTARY SHOULDERED CONNECTIONS TABLE 5.4 LONGITUDINAL WAVE VELOCITY MATERIAL
in / us
cm / us
ALUMINUM AL 1100-0 ( 2SO ) AL 2014 ( 14S) AL 2024 T4 ( 24ST ) AL 2117 T4 ( 17ST )
. . . . .
. . . . .
2490 2500 2490 2510 2560
Item No : PTSCOS, ROTARY-4/06-6/2000
6320 6350 6320 6370 6500
SHEAR WAVE VELOCITY in / us . . . . .
1230 1220 1210 1240 1230
cm / us . . . . .
3130 3130 3070 3160 3120 Page 3 of 5
Section : Rotary Shoulder 4/6
Approval
Subject : Ultrasonic of RSC
Revision No :
BRASS BRASS, HALF HARD BRASS, NAVAL BRONZE, PHOSPHOR CADMIUM COPPER INCONEL IRON IRON, CAST LEAD LEAD ( 5% ANTIMONY ) MAGNESIUM MAGNESIUM ( AM – 35 ) MAGNESIUM ( FS – 1 ) MAGNESIUM ( J – 1 ) MAGNESIUM MOLYBDENUM MONEL NICKEL STEEL, 302 STEEL, 347 STEEL, 410 STEEL, 1020 STEEL, 1095 STEEL, 4150 RC14 STEEL, 4150 RC18 STEEL, 4150 RC43
. . . . . . . . . . . . . . . . . . . . . . . . . . .
1690 1510 1740 1390 1090 1830 2250 2320 1890 0850 0854 2480 2280 2150 2230 1830 2480 2370 2220 2230 2260 2910 2320 2320 2310 2320 2310
MATERIAL us
in / us
STEEL, 4150 RC64 STEEL, 4340 ACRYLIC BAKELITE CELLULOSE ACETATE DELRIN LUCITE NYNON PHENOLIC PLEXIGLASS ( UVA) PVC TEFLON
. . . . . . . . . . .
2290 2300 1050 1020 0965 1000 1050 1030 0560 1090 0905
. 0531
Item No : PTSCOS, ROTARY-4/06-6/2000
. 4280 . 3830 . 4430 .3530 . 2780 . 4660 . 5720 . 5900 . 4800 . 2160 . 2170 . 6310 . 5790 . 5470 . 5670 . 4660 . 6290 . 3020 . 5630 . 5660 . 5740 . 7390 . 5890 . 890 . 5860 . 5890 . 5870
cm / us . . . . . . . . . . .
5820 5850 2670 2590 2450 2540 2670 2620 1420 2760 2299
Date:1st June 2000
: 3
PTSCOS/06-2000
. . . . . . . . . . . . . . . . . . . . . . . . . . .
0800 0810 0835 0878 0590 0890 1190 1270 0945 0276 0319 1200 1220 1190 1190 0925 1320 1070 1170 1230 1220 1180 1280 1260 1110 1250 1260
. . . . . . . . . . . . . . . . . . . . . . . . . . .
2030 2050 2120 2230 1500 2260 3020 3230 2400 0700 0810 3050 3100 3030 3010 2350 3350 2720 2960 3120 3090 2990 3240 3190 2790 3180 3200
in / us
cm
. 1090 . 1280 . 0441
. 2770 . 3240 . 1120
. 0496
. 1260
. 0563
. 1430
/
. 1350 Page 4 of 5
Section : Rotary Shoulder 4/6
Approval
Subject : Ultrasonic of RSC
Revision No :
Item No : PTSCOS, ROTARY-4/06-6/2000
Date:1st June 2000
: 3
PTSCOS/06-2000
Page 5 of 5
Approval
Subject : Ultrasonic of RSC
Revision No :
Date:1st June 2000
: 3
PTSCOS/06-2000
SUBJECT: ULTRASONIC TESTING OF ROTARY SHOULDERED CONNECTIONS 1.0
PURPOSE
1.1
To establish a standard procedure for the ultrasonic testing of rotary shouldered connections to detect service-induced discontinuities.
2.0
APPLICATION
2.1
Unless otherwise specified by customer, this procedure is applicable to the ultrasonic testing of rotary shouldered connections in both ferromagnetic and nonmagnetic materials.
2.2
If the customer specifies another procedure, it shall be denoted on the connection report.
3.0
ASSOCIATED MATERIALS
3.1
RSC Inspection Procedure,RP 7G.
4.0
GENERAL
4.1
If ultrasonic testing is to be performed in conjunction with magnetic particle and/or liquid penetrant inspection, the order in which the tests are performed is not important. However, the connections should be cleaned as necessary after each inspection to remove any residue that would affect the next test.
4.2
A proper calibration standard is one made of the same or similar material with the same or similar heat treatment as the material to be inspected.
4.3
To select the proper calibration standard, it is necessary to be reasonably sure of the type of material to be tested. The size an type of connection must also be known. Table 4.3 lists the range of size and type of connection covered by each calibration standard.
4.4
Each calibration standard is a standard rotary shouldered connection with a series of notches machined in the thread roots. The series of notches consists of three .010” deep notches located at varying distances from the pin end or box shoulder. There is a fourth notch, .020” deep, located in the same thread root as the .010” notch at the maximum distance from the pin end or box shoulder. The series of three .010” notches is used at maximum distance is used to set system sensitivity, and the .020” notch is used for comparison purposes. TABLE 4.3 Range of RSC UT Calibrataion standards
Item No : PTSCOS, ROTARY-4/06-6/2000
Page 1 of 5
Section : Rotary Shoulder 4/6
Approval
Subject : Ultrasonic of RSC
Revision No :
Size & Type of Standard NC 46
Date:1st June 2000
: 3
PTSCOS/06-2000
Size & Type of connections covered by standard NC 23 Thru NC 50, 4FH, 5 ½ IF, 6 .5/8 IF , 3/8 Thru 4 .1/2 SH, 3.1/2 thru 5.1/2 double SL
4 ½ Reg
2 3/8 thru 4 ½ Reg, 4 ½ FH, NC 56 Thru NC 77
5 ½ FH
5 ½ FH, 6 5/8 Reg, 6 5/8 FH
5 ½ Reg
5 ½ Reg, 7 5/8 Reg, 8 5/8 Reg
4 ½ H-90
3
7 – H – 90
7 Thru 8 5/8 H – 90
½ Thru 6 5/8 H – 90
5.0
PROCEDURE
5.1
Prior to calibration, visually examine the plastic wedge to assure adequate couplant between the wedge and transducer. If air bubbles are observed, disassemble the transducer from the plastic wedge and apply sufficient couplant to the mounting surface of the wedge. Reassemble the transducer to the wedge, again observing that complete coupling occurs.
5.2
Activate the couplant valve and verify that couplant flows freely from the outlets in the plastic wedge.
5.3
Calibration of the ultrasonic testing system shall be performed each time the flaw detector is turned on, prior to performing the initial inspection, and each time a change in calibration standard is required. Verification of calibration against the standard shall be performed after every tenth connection inspected and at the end of each job.
5.4
Using the proper calibration standard, obtain “peak” signal from the .010” notch at maximum distance bu adjusting the angle of the transducer.
5.5
Set system sensitivity to obtain a 25% amplitude signal from the .010” notch at the maximum distance.
5.6
Using the three .010” notches at varying distances, set the time varied gain (TVG).
Item No : PTSCOS, ROTARY-4/06-6/2000
Page 2 of 5
Section : Rotary Shoulder 4/6
Approval
Subject : Ultrasonic of RSC
Revision No :
Date:1st June 2000
: 3
PTSCOS/06-2000
5.7
Return to the .010” notch at maximum distance and adjust the gain as required to obtain a 25% amplitude signal.
5.8
Set the gate start as close as possible to the interface signal. This should be approximately 1 ½” .
5.9
Adjust gate width to sufficiently cover the entire length of the threads to be inspected.
5.10
Adjust gate level to approximately 5% less than the signal amplitude of the . 010” notch at Maximum distance ( refer to Paragragh 5.7).
5.11
Adjust the reject level as required to eliminate excess grass along the baseline. Do not exceed 20% reject level.
5.12
All indications in excess of the gate threshold level shall be marked for further investigation and disposition.
5.13
All indications marked shall be investigated with magnetic particle or penetrant inspection, as applicable. Disposition shall be performed in accordance with FI-012. Any ultrasonic indication that cannot be verified by other means shall be dispositioned as follows : A. If the signal amplitude is less than 50% of full screen height (FSH), the disposition shall be “use as is” B. If the signal amplitudeis equal to or greater than 50% of FSH, the disposition shall be “reject”.
5.14
After disposition, all parts should be marked as applicable for their particular classification. A report shall be generated detailing the inspection results. Remaining couplant should be removed from the test surfaces.
SUBJECT: ULTRASONIC TESTING OF ROTARY SHOULDERED CONNECTIONS TABLE 5.4 LONGITUDINAL WAVE VELOCITY MATERIAL
in / us
cm / us
ALUMINUM AL 1100-0 ( 2SO ) AL 2014 ( 14S) AL 2024 T4 ( 24ST ) AL 2117 T4 ( 17ST )
. . . . .
. . . . .
2490 2500 2490 2510 2560
Item No : PTSCOS, ROTARY-4/06-6/2000
6320 6350 6320 6370 6500
SHEAR WAVE VELOCITY in / us . . . . .
1230 1220 1210 1240 1230
cm / us . . . . .
3130 3130 3070 3160 3120 Page 3 of 5
Section : Rotary Shoulder 4/6
Approval
Subject : Ultrasonic of RSC
Revision No :
BRASS BRASS, HALF HARD BRASS, NAVAL BRONZE, PHOSPHOR CADMIUM COPPER INCONEL IRON IRON, CAST LEAD LEAD ( 5% ANTIMONY ) MAGNESIUM MAGNESIUM ( AM – 35 ) MAGNESIUM ( FS – 1 ) MAGNESIUM ( J – 1 ) MAGNESIUM MOLYBDENUM MONEL NICKEL STEEL, 302 STEEL, 347 STEEL, 410 STEEL, 1020 STEEL, 1095 STEEL, 4150 RC14 STEEL, 4150 RC18 STEEL, 4150 RC43
. . . . . . . . . . . . . . . . . . . . . . . . . . .
1690 1510 1740 1390 1090 1830 2250 2320 1890 0850 0854 2480 2280 2150 2230 1830 2480 2370 2220 2230 2260 2910 2320 2320 2310 2320 2310
MATERIAL us
in / us
STEEL, 4150 RC64 STEEL, 4340 ACRYLIC BAKELITE CELLULOSE ACETATE DELRIN LUCITE NYNON PHENOLIC PLEXIGLASS ( UVA) PVC TEFLON
. . . . . . . . . . .
2290 2300 1050 1020 0965 1000 1050 1030 0560 1090 0905
. 0531
Item No : PTSCOS, ROTARY-4/06-6/2000
. 4280 . 3830 . 4430 .3530 . 2780 . 4660 . 5720 . 5900 . 4800 . 2160 . 2170 . 6310 . 5790 . 5470 . 5670 . 4660 . 6290 . 3020 . 5630 . 5660 . 5740 . 7390 . 5890 . 890 . 5860 . 5890 . 5870
cm / us . . . . . . . . . . .
5820 5850 2670 2590 2450 2540 2670 2620 1420 2760 2299
Date:1st June 2000
: 3
PTSCOS/06-2000
. . . . . . . . . . . . . . . . . . . . . . . . . . .
0800 0810 0835 0878 0590 0890 1190 1270 0945 0276 0319 1200 1220 1190 1190 0925 1320 1070 1170 1230 1220 1180 1280 1260 1110 1250 1260
. . . . . . . . . . . . . . . . . . . . . . . . . . .
2030 2050 2120 2230 1500 2260 3020 3230 2400 0700 0810 3050 3100 3030 3010 2350 3350 2720 2960 3120 3090 2990 3240 3190 2790 3180 3200
in / us
cm
. 1090 . 1280 . 0441
. 2770 . 3240 . 1120
. 0496
. 1260
. 0563
. 1430
/
. 1350 Page 4 of 5
Section : Rotary Shoulder 4/6
Approval
Subject : Ultrasonic of RSC
Revision No :
Item No : PTSCOS, ROTARY-4/06-6/2000
Date:1st June 2000
: 3
PTSCOS/06-2000
Page 5 of 5
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