2012-09-VAM TOP HT torque table revision - VAM Services

TECHNICAL NOTE Date: Oct. 2012
VAM® TOP HT
Torque Table Revision
Archive
Page : 1/3
Dear VAM® customer,
Please be informed that Vallourec & Mannesmann and Nippon Steel & Sumitomo Metal Corp have decided
to revise the VAM® TOP HT torque table. This will be published officially (VAM® Book, TSLI 450-13, web
based Connection Data Sheet) early November 2012.
This revision consists in:
• The addition of new weights / grades
• For some combinations, the change of the mill & licensees / Field liner max torque values.
Torque
Torque
(MTV)
Mill & Licensee max
Mill & Licensee min =
Field Liner max
Torque derated in
some cases, see below
Max
Opti
Min
Field end
(non rotational)
NO CHANGE
Turn
Turn
Picture 1: Schematic of the revision of the VAM® TOP HT torque table, when applicable
Modification of torque values is ONLY applicable to the following combinations:
• Mill & Licensees and Field Liner max of all grades with 125 ksi yield strength or greater, except
cold worked CRA.
• Mill & Licensees and Field Liner max of all carbon and 13Cr grades for heavier wall pipes (see
table A for the weights concerned).
Table A summarizes the combinations concerned by torque revision (page 3).
The standard field end values (maximum, optimum and minimum for non rotational application)
remain unchanged.
The purpose of this revision is to prevent overtorque problems experienced in production.
The calculation formula of VAM® TOP HT “MTV” (Max Torque Value) has been optimized for high grades /
heavy weights.

FAQ:
1. Is the performance still validated
• Yes. VAM® TOP HT has been qualified as per ISO13679 (2002) CAL IV protocol. ISO13679
CAL IV flowchart includes tests with min torque and with max torque. Since the revised torque
values remain within the previously validated torque range, the prior qualification history and
associated performances remain applicable.
2. What about joints delivered in the past, run or in inventory Is there a risk
• No. VAM® TOP HT joints that have been delivered by Vallourec and Sumitomo have a 100%
control of coupling make-up. All the make-ups are compliant. For strings that have been run,
any risk of overtorque has been controlled and alleviated through field application of the VAM®
acceptance criteria for torque-turn analysis.
3. What should I do for joints in inventory and upcoming runnings
• VAM® recommends that you apply the revised torque table. If for operational reasons, you need
to keep the previous max liner torque values, please contact your VAM® focal point.
Please do not hesitate to contact your VAM® focal point for more information.

Table A:
Revised values of Mill and Licensee min/max and Field Liner Max Torques
(Grey cells and values not shown mean that torque is unchanged from previous version)
mm mm = Field Liner
max
REVISION of Mill & Licensee Torques, & max Field (rotational) torque
Carbon
Carbon
SIZE Nominal Wall
Carbon
13 Cr
13 Cr
Carbon
Carbon
Carbon
(OD) Weight Thickness
13 Cr
CRA
CRA
Mill & licensee Mill & licensee Mill & licensee Mill & licensee Mill & licensee Mill & licensee
in. lb/ft in. min max min max min max min max min max min max
4 1/2"
5"
5 1/2"
6 5/8"
7"
7 5/8"
65 ksi 75-80-85 ksi 90-95-100 ksi 105-110-115 ksi 120-125-130 ksi 135-140-145 ksi
= Field Liner
max
= Field Liner
max
= Field Liner
max
= Field Liner
max
= Field Liner
max
10.50 0.224 4770 5240 5240 5810
11.60 0.250 6150 6760 6600 7320
12.60 0.271 7310 8040 7820 8670
13.50 0.290 8300 9130 8920 9900
15.10 0.337 10400 11400 11150 12350
17.00 0.380 6840 7520 8160 9050 9550 10600 10970 12150 12400 13750 13600 15100
17.70 0.402 7480 8240 8920 9900 10450 11590 12000 13300 13000 14400 14250 15800
18.90 0.430 8340 9140 9900 10970 11580 12800 12750 14100 14350 15950 15750 17450
21.50 0.500 9950 10890 12030 13350 14250 15850 15800 17500 17800 19750 19500 21650
23.70 0.560 11150 12320 13600 15100 16100 17850 17900 19850 20350 22600 22450 24900
15.00 0.296 9400 10300 10150 11250
18.00 0.362 13750 15100 14300 15900
20.30 0.408 9230 10240 11050 12260 12900 14300 14150 15700 15950 17700 17450 19350
20.80 0.422 9750 10810 11650 12950 13600 15100 14950 16550 16850 18650 18450 20450
21.40 0.437 10340 11200 11850 13150 13800 15300 15750 17500 17750 19700 19450 21600
23.20 0.478 11500 11850 13050 14300 15450 17150 17650 19600 19850 22050 21750 24100
17.00 0.304 11950 13100 12450 13800
20.00 0.361 15900 17500 16500 18300
23.00 0.415 16350 18150 17900 19800 20000 22100 20000 22100
26.00 0.476 13550 14450 15650 17350 21200 23400 23100 25500 23100 25500 24500 27200
29.70 0.562 15850 17400 19100 21200 25700 28400 25700 28400 25700 28400 30500 33800
23.20 0.330 20250 22300 20600 22900
24.00 0.352 22800 25100 23300 25900
28.00 0.417 29600 32650 30300 33600
32.00 0.475 37150 40850 37500 41600
36.70 0.562 23400 25900 28800 31900 34200 37900 37700 41800 42700 47300 46900 52000
26.00 0.362 24000 26450 24500 27200
29.00 0.408 30100 33150 30800 34100
32.00 0.453 34700 38200 35100 38900
35.00 0.498 41800 46050 42700 47400
38.00 0.540 25100 27700 30600 33750 36150 39800 41800 46050 41800 46050 48400 53600
41.00 0.590 27100 30050 33350 37000 39650 43950 44050 48850 53750 59150 55000 61000
29.70 0.375 14500 16000 17600 19500 20800 23000 24000 26600 27300 30300 30000 33300
33.70 0.430 18600 20700 22700 25100 26800 27900 30900 34300 35100 38900 38700 42900
35.80 0.465 20100 22300 24400 27100 28800 31900 33200 36900 37700 41800 41500 46000
39.00 0.500 21500 23800 26000 28900 30700 34000 35300 39200 40100 44400 44100 48900
42.80 0.562 25100 27800 30500 33800 35900 39800 41300 45800 46800 51900 51500 57100
45.30 0.595 26400 29200 32300 35800 38200 42400 44000 48800 49800 55200 54700 60700
47.10 0.625 26400 29200 33300 36900 39500 43800 45700 50700 51700 57400 56800 63000