Multi-Rifled seamless cold drawn tubes for power plants
The Company
Salzgitter AG
Mannesmannröhren-Werke GmbH
Salzgitter Mannesmann Precision GmbH
Salzgitter Mannesmann
Präzisrohr GmbH, Hamm
Salzgitter Mannesmann
Rohr Sachsen GmbH, Zeithain
Salzgitter Mannesmann
Précision Etirage SAS, St. Florentin
Salzgitter Mannesmann
Precisión S.A. de C.V., Guadalajara
Hamm
Zeithain
St. Florentin
Guadalajara
Wickede
Vitry
Brackwede
Rachecourt
Holzhausen
Tonnerre
Remscheid *
La Charité
*A Company of Salzgitter Mannesmann Stainless Tubes GmbH
Outside diameter, mm
Salzgitter Mannesmann Precision
Following the takeover of Vallourec Précision Etirage (VPE),
France, by the Salzgitter AG, the new European market leader
of cold-drawn seamless and welded precision steel tubes has
been founded under the name of Salzgitter Mannesmann
Precision GmbH. As a leading European manufacturer Salzgitter
Mannesmann Precision offers a wide range of products and
services with great scope for intelligent, tubing-related solutions.
Wall thickness, mm
0
1
2
3
4
The Group-Structure
Effective synergies are a result of our integration with the
Salzgitter Group ensure an outstanding efficiency - from the
pre-material to the finished precision steel tube.
The affiliated group companies ensure a comprehensive supply
guarantee regarding the complete value-added chain in
production of precision steel tubes and is therewith the basis
for the high performance in deliveries and customer satisfaction.
Today, Mannesmannröhren-Werke (MRW) manages the Group's
Tube Division. The Division has numerous subsidiaries and
affiliated companies.
5
6
7
8
9
10
11
12
13
14
15
16
17
18 20
22
10
20
30
40
50
100
150
200
300
350
380
Production of seamless and welded precision steel tubes in accordance to international standards e.g.
EN 10305-1, EN10305-2, EN10305-3, EN 10305-4, EN10216 and EN10217, ASTM A 179, A192, A 209, A 210, A 213, A 556 Japan
Industrial Standard, British Standards, Other standards on inquiry.
Seamless precision steel tubes of special
dimensional accuracy according to DIN EN 10305-1
Outside diameter:
1.5 - 380 mm
Wall thicknesses:
0.2 - 25.0 mm
2
Welded precision steel tubes of special
dimensional accuracy according to DIN EN 10305-2
Outside diameter:
20 - 120 mm
Wall thicknesses:
1.0 - 7.5 mm
Welded size-rolled precision steel tubes according
to DIN EN 10305-3
Outside diameter:
25 - 114.3 mm
Wall thicknesses:
1.75 - 8.5 mm
25
The concept
Over the last few years, designs have evolved
towards more complex coal-fired stations
(super critical and ultra-super critical). SMP has
been following that trend and developed products accordingly.
DNB phenomenon (Departure of Nucleate Boiling)
Steam – Water mixture
Applications of Multi Rifled tubes
Rifled tubes are used in high pressure boilers
to eliminate the steam film effect due to the
D. N. B. on the inner surface of the tube and
raise thermal efficiency in the furnace walls.
Film
boiling
Transition
boiling
Heat
Nucleate
boiling
DNB
Rifled tubes in a conventional boiler provide a
larger margin of safety for natural circulation
and assisted circulation and many economical
advantages as:
• Reduction of weight for downcomers,
headers, drum and connecting pipe
• Reduction of pumps power
• Reduction of framework weight
Water
Besides standard designs, SMP has developed
tubular solutions with small outside diameter,
heavier wall thickness and improved rib profile
(Siemens design and others) to further improve
heat transfer and steam flow.
3
A type Profile
D
K
L
H
B
C
A
S
F
M
Axial section
ITEM
A
B
C
D
E
F
H
K
L
M
N
P
S
Tube outside diameter
Major inside diameter
Minimum inside diameter
Minimum wall thickness
Number of ribs
Rib width at top (circumferential)
Specified rib height
Rib side angle (both sides of the rib)
Rib radius (top and bottom of the rib)
Pitch (rib lead)
Lead
Lead angle (referenced to tube axis)
Rib width at top (longitudinal)
Cross section
Value
Tolerance
–
–
–
D = (A - B)/(1.11 X 2)
–
4.78 mm (0.188 inch)
–
55°
from 0.13 to 1.27 mm (from 0.005 to 0.05 inch)
–
N=MxE
30°
8.28 mm (0.326 inch)
α
α
–
- 0/ + 22% (1)
–
–
+/- 0.30 (+/- 0.012 inch)
+/- 15°
–
+/- 3.18 (+/- 0.125 inch)
+/- 3.18 x E (+/- 0.125 inch x E)
–
+/- 1.27 (+/- 0.05 inch)
Tolerances α: from 0.15 mm/0.006 inch to 0.30 mm/0.012 inch depending on OD, (1) Tighter tolerances could be considered upon request.
4
B type Profile
I
J
N
E
C
M
B
H
P
F
Axial section
Cross section
ITEM
B
C
D
E
F
G
H
I
J
M
N
O
P
Tube outside diameter
Major inside diameter
Number of ribs
Specified rib heigh
Pitch (rib lead)
Lead
Rib width at top (longitudinal)
Minimum wall thickness
Rib side angle (both sides of the rib)
Minimum Inside diameter
Rib radius (top and bottom of the rib)
Lead angle (referenced to tube axis)
Rib width at top (circumferential)
Value
Tolerance
–
–
–
–
–
G=FxD
5.59 mm (0.220 inch)
I = (B - C)/(1.11 x 2)
50°
–
from 0.4 to 2 mm (1/64 up to 5/64 inch)
30°
3.23 mm (0.127 inch)
α
α
–
β (1)
+/- 3.18 (+/- 0.125 inch)
+/- 3.18 x D (+/- 0.125 inch x D)
+/- 1.27 (+/- 0.05 inch)
- 0/ + 22% (2)
+/- 15°
–
–
–
–
Tolerances α: from 0.15 mm/0.006 inch to 0.30 mm/0.012 inch depending on OD, Tolerances β: from 0.18 mm/0.007 inch to 0.28 mm/0.011 inch depending on OD
(1) Average rib height of all ribs should fall without the propoer value of the +/- given tolerance. (2) Tighter tolerances could be considered upon request.
B type Profile
Outside
Diameter
mm/inch
5
Minimum
wall thickness
mm
inch
Number
of ribs
Major i.d.
Rib height
Lead
Mean weight
Flow section
mm
inch
mm
inch
mm
inch
kg/m
Lb/ft
mm2
Sq. inch
Wet internal
perimeter
mm
inch
28.58
1.125
3.76
3.96
4.19
4.57
0.148
0.156
0.165
0.180
4
4
4
4
20.23
19.78
19.27
18.43
0.796
0.779
0.759
0.725
0.95
0.94
0.93
0.92
0.037
0.037
0.037
0.036
110.1
107.6
104.8
100.2
4.330
4.238
4.129
3.944
2.62
2.73
2.85
3.05
1.761
1.835
1.917
2.048
307
293
278
253
0.476
0.455
0.431
0.392
68.3
66.9
65.2
62.5
2.69
2.63
2.57
2.46
31.75
1.250
3.76
3.96
4.19
4.57
0.148
0.156
0.165
0.180
6
6
6
6
23.41
22.95
22.45
21.60
0.921
0.904
0.884
0.850
0.99
0.98
0.98
0.97
0.039
0.039
0.039
0.038
127.3
124.9
122.1
117.5
5.010
4.918
4.809
4.624
3.01
3.14
3.28
3.51
2.023
2.109
2.204
2.356
408
392
374
345
0.632
0.608
0.580
0.534
81.0
79.5
77.9
75.1
3.19
3.13
3.07
2.96
34.92
1.375
3.76
3.96
4.19
4.57
4.78
5.16
5.59
0.148
0.156
0.165
0.180
0.188
0.203
0.220
6
6
6
6
6
6
6
26.58
26.13
25.62
24.78
24.32
23.48
22.52
1.046
1.029
1.009
0.975
0.958
0.924
0.887
1.03
1.03
1.02
1.01
1.00
0.99
0.98
0.041
0.040
0.040
0.040
0.039
0.039
0.039
144.6
142.1
139.4
134.8
132.3
127.7
122.5
5.690
5.598
5.489
5.304
5.212
5.027
4.825
3.35
3.49
3.65
3.91
4.05
4.29
4.56
2.248
2.346
2.454
2.629
2.720
2.886
3.067
532
513
493
460
442
411
377
0.824
0.796
0.764
0.712
0.686
0.636
0.584
91.3
89.8
88.2
85.4
84.0
81.2
78.1
3.59
3.54
3.47
3.36
3.31
3.20
3.08
37.31
1.469
3.76
3.96
4.19
4.57
4.78
5.16
5.59
6.10
0.148
0.156
0.165
0.180
0.188
0.203
0.220
0.240
8
8
6
6
6
6
6
6
28.97
28.52
28.01
27.16
26.71
25.87
24.91
23.78
1.140
1.123
1.103
1.069
1.052
1.018
0.981
0.936
1.06
1.05
1.05
1.04
1.03
1.02
1.01
1.00
0.042
0.041
0.041
0.041
0.041
0.040
0.040
0.039
157.6
155.1
152.4
147.8
145.3
140.7
135.5
129.4
6.202
6.109
6.000
5.815
5.723
5.538
5.337
5.092
3.66
3.82
3.93
4.22
4.37
4.64
4.94
5.27
2.459
2.565
2.642
2.834
2.934
3.116
3.316
3.542
627
607
593
556
537
503
465
422
0.972
0.942
0.919
0.862
0.833
0.779
0.721
0.654
101.6
100.2
95.9
93.1
91.7
88.9
85.8
82.2
4.00
3.94
3.78
3.67
3.61
3.50
3.38
3.24
B type Profile
Outside
Diameter
mm/inch
6
Minimum
wall thickness
mm
inch
Number
of ribs
Major i.d.
Rib height
Lead
Mean weight
Flow section
Sq. inch
Wet internal
perimeter
mm
inch
mm
inch
mm
inch
mm
inch
kg/m
Lb/ft
mm2
38.10
1.500
3.96
4.19
4.57
4.78
5.16
5.59
6.10
6.35
0.156
0.165
0.180
0.188
0.203
0.220
0.240
0.250
8
8
6
6
6
6
6
6
29.30
28.80
27.95
27.50
26.65
25.70
24.57
24.00
1.154
1.134
1.100
1.083
1.049
1.012
0.967
0.945
1.06
1.06
1.05
1.04
1.03
1.02
1.01
1.00
0.042
0.042
0.041
0.041
0.041
0.040
0.040
0.039
159.4
156.7
152.0
149.6
145.0
139.8
133.6
130.6
6.278
6.169
5.984
5.892
5.707
5.505
5.260
5.141
3.91
4.09
4.32
4.47
4.75
5.06
5.40
5.57
2.624
2.745
2.901
3.004
3.192
3.399
3.632
3.744
643
620
590
571
535
496
452
430
0.997
0.961
0.914
0.885
0.829
0.769
0.700
0.667
102.7
101.1
95.7
94.2
91.5
88.4
84.7
82.9
4.05
3.98
3.77
3.71
3.60
3.48
3.34
3.26
41.28
1.625
3.76
3.96
4.19
4.57
4.78
5.16
5.59
6.10
6.35
6.60
7.21
0.148
0.156
0.165
0.180
0.188
0.203
0.220
0.240
0.250
0.260
0.284
8
8
8
8
8
8
8
6
6
6
6
32.93
32.93
31.97
31.13
30.67
29.83
28.87
27.74
27.18
26.61
25.26
1.296
1.279
1.259
1.225
1.208
1.174
1.137
1.092
1.070
1.048
0.995
1.10
1.10
1.09
1.08
1.08
1.07
1.06
1.04
1.04
1.03
1.01
0.043
0.043
0.043
0.043
0.042
0.042
0.042
0.041
0.041
0.041
0.040
179.1
176.7
173.9
169.3
166.9
162.3
157.1
150.9
147.8
144.8
137.4
7.050
6.958
6.849
6.664
6.572
6.387
6.185
5.940
5.821
5.701
5.413
4.08
4.26
4.46
4.79
4.96
5.27
5.61
5.94
6.13
6.32
6.75
2.741
2.862
2.997
3.216
3.331
3.541
3.772
3.993
4.120
4.245
4.534
818
795
770
728
707
667
623
581
557
533
479
1.268
1.234
1.194
1.128
1.096
1.033
0.966
0.900
0.863
0.827
0.742
114.5
113.1
111.4
108.7
107.2
104.4
101.3
95.0
93.2
91.4
87.0
4.51
4.45
4.39
4.28
4.22
4.11
3.99
3.74
3.67
3.60
3.43
44.45
1.750
3.76
3.96
4.19
4.57
4.78
5.16
5.59
6.10
6.35
6.60
7.21
7.62
7.95
0.148
0.156
0.165
0.180
0.188
0.203
0.220
0.240
0.250
0.260
0.284
0.300
0.313
8
8
8
8
8
8
8
8
8
8
8
6
6
36.11
35.65
35.15
34.30
33.85
33.00
32.05
30.92
30.35
29.79
28.44
27.53
26.80
1.421
1.404
1.384
1.350
1.333
1.299
1.262
1.217
1.195
1.173
1.120
1.084
1.055
1.14
1.13
1.13
1.12
1.11
1.10
1.09
1.08
1.08
1.07
1.05
1.04
1.03
0.045
0.045
0.044
0.044
0.044
0.043
0.043
0.043
0.042
0.042
0.041
0.041
0.041
196.4
194.0
191.2
186.6
184.1
179.5
174.3
168.2
165.1
162.1
154.7
149.8
145.8
7.730
7.638
7.529
7.344
7.252
7.067
6.865
6.620
6.501
6.381
6.093
5.897
5.739
4.41
4.61
4.83
5.19
5.38
5.73
6.11
6.54
6.75
6.96
7.44
7.69
7.93
2.967
3.100
3.248
3.489
3.616
3.848
4.105
4.397
4.539
4.678
5.002
5.168
5.332
989
964
936
890
866
822
774
718
691
665
604
572
541
1.533
1.495
1.452
1.379
1.344
1.274
1.200
1.113
1.072
1.031
0.936
0.887
0.838
124.8
123.4
121.7
119.0
117.5
114.8
111.6
108.0
106.1
104.3
99.9
94.3
92.0
4.91
4.86
4.79
4.68
4.63
4.52
4.40
4.25
4.18
4.11
3.93
3.71
3.62
50.80
2.000
3.96
4.19
4.57
4.78
5.16
5.59
6.10
6.35
6.60
7.21
7.62
7.95
8.13
8.64
0.156
0.165
0.180
0.188
0.203
0.220
0.240
0.250
0.260
0.284
0.300
0.313
0.320
0.340
10
10
10
10
10
10
10
10
8
8
8
8
8
8
42.00
41.50
40.65
40.20
39.35
38.40
37.27
36.70
36.14
34.79
33.88
33.15
32.76
31.63
1.654
1.634
1.600
1.583
1.549
1.512
1.467
1.445
1.423
1.370
1.334
1.305
1.290
1.245
1.20
1.19
1.18
1.18
1.17
1.16
1.15
1.14
1.14
1.12
1.11
1.11
1.10
1.09
0.047
0.047
0.047
0.046
0.046
0.046
0.045
0.045
0.045
0.044
0.044
0.044
0.043
0.043
228.5
225.7
221.1
218.7
214.1
208.9
202.7
199.7
196.6
189.2
184.3
180.3
178.2
172.1
8.998
8.889
8.709
8.612
8.427
8.225
7.980
7.861
7.741
7.453
7.257
7.099
7.018
6.773
5.39
5.65
6.08
6.30
6.71
7.17
7.69
7.94
8.13
8.72
9.10
9.40
9.56
10.00
3.623
3.797
4.081
4.233
4.510
4.816
5.167
5.339
5.462
5.857
6.112
6.314
6.421
6.720
1340
1307
1253
1224
1172
1114
1047
1015
991
916
868
830
810
753
2.078
2.027
4.083
1.899
1.816
1.727
1.623
1.573
1.537
1.422
1.346
1.286
1.256
1.167
147.0
145.3
142.6
141.1
138.3
135.2
131.5
129.6
124.9
120.6
117.6
115.2
114.0
110.3
5.79
5.72
5.61
5.56
5.44
5.32
5.18
5.10
4.92
4.75
4.63
4.54
4.49
4.34
54.00
2.125
3.96
4.19
4.57
4.78
5.16
5.59
6.10
6.35
6.60
7.21
7.62
7.95
8.13
8.64
9.14
0.156
0.165
0.180
0.188
0.203
0.220
0.240
0.250
0.260
0.284
0.300
0.313
0.320
0.340
0.360
12
12
10
10
10
10
10
10
10
10
10
8
8
8
8
45.18
44.67
43.83
43.37
42.53
41.57
40.44
39.88
39.31
37.96
37.06
36.33
35.93
34.80
33.68
1.779
1.759
1.725
1.708
1.674
1.637
1.592
1.570
1.548
1.495
1.459
1.430
1.415
1.370
1.326
1.23
1.22
1.22
1.21
1.20
1.19
1.18
1.18
1.17
1.16
1.15
1.14
1.14
1.12
1.11
0.048
0.048
0.048
0.048
0.047
0.047
0.047
0.046
0.046
0.046
0.045
0.045
0.045
0.044
0.044
245.8
243.0
238.4
236.0
231.4
226.1
220.0
216.9
213.9
206.5
201.6
197.6
195.5
189.3
183.2
9.678
6.569
9.384
9.292
9.107
8.905
8.660
8.541
8.421
8.133
7.937
7.779
7.698
7.453
7.213
5.82
6.10
6.48
6.72
7.17
7.66
8.23
8.51
8.78
9.42
9.83
10.10
10.27
10.76
10.23
3.910
4.098
4.357
4.519
4.818
5.150
5.531
5.517
5.901
6.331
6.609
6.785
6.902
7.230
7.548
1547
1511
1462
1413
1375
1312
1240
1204
1169
1088
1035
1002
980
917
857
2.398
2.343
2.265
2.220
2.130
2.034
1.921
1.867
1.813
1.687
1.605
1.553
1.519
1.422
1.329
160.4
158.7
152.9
151.4
148.7
145.6
141.9
140.0
138.2
133.8
130.8
125.6
124.3
120.6
116.9
6.32
6.25
6.02
5.96
5.85
5.73
5.58
5.51
5.44
5.27
5.15
4.94
4.89
4.75
4.60
B type Profile
Outside
Diameter
mm/inch
Minimum
wall thickness
mm
inch
57.15
2.250
4.19
4.57
4.78
5.16
5.59
5.84
6.10
6.35
6.60
6.73
7.21
7.62
7.95
8.13
8.64
0.165
0.180
0.188
0.203
0.220
0.230
0.240
0.250
0.260
0.265
0.284
0.300
0.313
0.320
0.340
63.50
2.500
4.19
4.57
4.78
5.16
5.33
5.59
5.84
5.97
6.10
6.22
6.35
6.48
6.60
6.73
6.86
6.99
7.11
7.21
66.68
2.625
Number
of ribs
Major i.d.
Rib height
Lead
Mean weight
Flow section
mm
inch
mm
inch
mm
inch
kg/m
Lb/ft
mm2
Sq. inch
Wet internal
perimeter
mm
inch
12
12
12
12
12
10
10
0
10
10
10
10
10
10
10
47.85
47.00
46.55
45.70
44.75
44.18
43.62
43.05
42.49
42.21
41.14
40.23
39.50
39.11
37.98
1.884
1.850
1.833
1.799
1.762
1.739
1.717
1.695
1.673
1.662
1.620
1.584
1.555
1.540
1.495
1.25
1.24
1.24
1.23
1.22
1.22
1.21
1.21
1.20
1.20
1.19
1.18
1.17
1.17
1.16
0.049
0.049
0.049
0.049
0.048
0.048
0.048
0.048
0.047
0.047
0.047
0.046
0.046
0.046
0.046
260.3
255.7
253.2
248.6
243.4
240.3
237.3
234.2
231.1
229.6
223.8
218.9
214.9
212.7
206.6
10.249
10.064
9.972
9.787
9.585
9.460
9.340
9.221
9.101
9.041
8.813
8.617
8.459
8.378
8.133
6.47
6.97
7.22
7.70
8.23
8.47
8.77
9.07
9.37
9.51
10.06
10.51
10.87
11.06
11.59
4.351
4.681
4.855
5.176
5.533
5.690
5.894
6.095
6.293
6.392
6.789
7.061
7.302
7.429
7.787
1740
1678
1645
1584
1516
1487
1448
1410
1372
1353
1284
1227
1181
1157
1089
2.698
2.599
2.551
2.454
2.351
2.303
2.244
2.185
2.127
2.099
1.991
1.901
1.830
1.794
1.687
169.2
166.4
164.9
162.1
159.0
153.9
152.2
150.4
148.6
147.6
144.3
141.2
138.7
137.4
133.9
6.66
6.55
6.49
6.38
6.26
6.06
5.99
5.92
5.85
5.81
5.68
5.56
5.46
5.41
5.27
0.165
0.180
0.188
0.203
0.210
0.220
0.230
0.235
0.240
0.245
0.250
0.255
0.260
0.265
0.270
0.275
0.280
0.284
14
14
14
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
54.20
53.35
53.90
52.05
51.66
51.10
50.53
50.25
49.97
49.69
49.40
49.12
48.84
48.56
48.28
47.99
47.71
47.49
2.134
2.100
2.083
2.049
2.034
2.012
1.989
1.978
1.967
1.956
1.945
1.934
1.923
1.912
1.901
1.889
1.878
1.870
1.31
1.30
1.30
1.29
1.29
1.28
1.27
1.27
1.27
1.27
1.27
1.26
1.26
1.26
1.26
1.25
1.25
1.25
0.052
0.051
0.051
0.051
0.050
0.050
0.050
0.050
0.050
0.050
0.050
0.050
0.050
0.050
0.049
0.049
0.049
0.049
294.8
290.2
287.8
283.2
281.0
278.0
274.9
273.4
271.8
270.3
2688
267.2
265.7
264.2
262.6
261.1
259.5
258.3
11.609
11.424
11.332
11.147
11.065
10.945
10.820
10.760
10.700
10.641
10.581
10.521
10.461
10.401
10.341
10.276
10.216
10.173
7.31
7.86
8.16
8.62
8.87
9.23
9.58
9.75
9.93
10.10
10.27
10.44
10.61
10.78
10.95
11.11
11.28
11.41
4.910
5.284
5.481
5.794
5.963
6.202
6.438
6.555
6.671
6.787
6.902
7.016
7.130
7.243
7.355
7.467
7.578
7.666
2236
2165
2128
2068
2037
1991
1947
1924
1902
1880
1859
1837
1815
1794
1773
1751
1730
1714
3.467
3.355
3.299
3.205
3.157
3.088
3.016
2.982
2.948
2.914
2.881
2.847
2.814
2.781
2.749
2.713
2.681
2.657
193.3
190.5
189.0
182.9
181.6
179.8
177.8
177.0
176.0
175.3
174.2
173.2
172.5
171.5
170.7
169.7
168.7
167.9
7.61
7.50
7.44
7.20
7.15
7.08
7.00
6.97
6.93
6.90
6.86
6.82
6.79
6.75
6.72
6.68
6.64
6.61
4.19
4.57
4.78
5.16
5.59
6.10
6.35
6.60
0.165
0.180
0.188
0.203
0.220
0.240
0.250
0.260
14
14
14
14
14
14
12
12
57.37
56.53
53.07
55.23
54.27
53.14
52.58
52.01
2.259
2.225
2.208
2.174
2.137
2.092
2.070
2.048
1.34
1.33
1.32
1.32
1.31
1.30
1.29
1.29
0.053
0.052
0.052
0.052
0.052
0.051
0.051
0.051
312.1
307.5
305.0
300.4
295.2
289.1
286.0
283.0
12.289
12.104
12.012
11.827
11.625
11.380
11.261
11.141
7.68
8.27
8.59
9.16
9.81
10.55
10.83
11.20
5.163
5.560
5.769
6.157
5.589
7.088
7.280
7.523
2513
2437
2398
2324
2242
2148
2111
2065
3.896
3.777
3.718
3.602
3.477
3.329
3.273
3.202
203.7
200.9
199.4
196.6
193.5
189.8
184.7
182.8
8.02
7.91
7.85
7.74
7.62
7.47
7.27
7.20
69.85
2.750
4.57
4.78
5.16
5.33
5.59
5.84
6.10
6.22
6.35
6.60
0.180
0.188
0.203
0.210
0.220
0.230
0.240
0.245
0.250
0.260
14
14
14
14
14
14
14
14
14
14
59.70
59.25
58.40
58.01
57.45
56.88
56.32
56.04
55.75
55.19
2.350
2.333
2.299
2.284
2.262
2.239
2.217
2.206
2.195
2.173
1.35
1.35
1.34
1.34
1.34
1.33
1.33
1.32
1.32
1.32
0.053
0.053
0.053
0.053
0.053
0.052
0.052
0.052
0.052
0.052
324.8
322.3
317.7
315.6
312.5
309.4
306.4
304.8
303.3
300.2
12.784
12.692
12.507
12.425
12.305
12.180
12.060
12.001
11.941
11.821
8.68
9.01
9.62
9.91
10.30
10.70
11.09
11.28
11.48
11.86
5.836
6.057
6.467
6.656
6.924
7.190
7.453
7.583
7.713
7.971
2726
2684
2606
2570
2519
2469
2419
2394
2370
2321
4.223
4.161
4.038
3.984
3.906
3.825
3.749
3.711
3.673
3.598
211.3
209.8
207.1
205.8
203.9
202.1
200.2
199.3
198.3
196.5
8.32
8.26
8.15
8.10
8.03
7.95
7.88
7.85
7.81
7.74
75.41
2.969
4.57
4.78
5.16
5.33
5.59
5.84
0.180
0.188
0.203
0.210
0.220
0.230
16
16
16
16
16
16
65.26
64.81
63.97
63.57
63.01
62.44
2.569
2.552
2.518
2.503
2.481
2.458
1.40
1.40
1.39
1.39
1.38
1.38
0.055
0.055
0.055
0.055
0.054
0.054
355.0
352.6
348.0
345.8
342.8
339.7
13.975
13.883
13.698
13.616
13.497
13.372
9.49
9.85
10.52
10.82
11.26
11.70
6.376
6.618
7.067
7.274
7.568
7.859
3258
3212
3127
3088
3032
2977
5.048
4.980
4.845
4.787
4.701
4.612
233.1
231.6
228.8
227.5
225.6
223.8
9.18
9.12
9.01
8.96
8.88
8.81
76.20
3.000
5.16
5.33
5.59
5.84
0.203
0.210
0.220
0.230
16
16
16
16
64.75
64.36
63.80
63.23
2.549
2.534
2.512
2.489
1.39
1.39
1.39
1.38
0.055
0.055
0.055
0.054
352.3
350.1
347.0
344.0
13.867
13.785
13.665
13.540
10.63
10.94
11.39
11.82
7.144
7.354
7.651
7.946
3206
3166
3110
3054
4.968
4.909
4.822
4.732
231.4
230.1
228.2
226.4
9.11
9.06
8.99
8.91
7
Optimized profile
maximum
30 %
rib
height
minimum
60 %
any curvature
Important:
Well-defined
plane rib flank!
maximum
30 %
any curvature
Optimized profile
Three main criteria are key points of optimized profile:
As clean coal technology requires ever more efficient power
plants, we propose to our most demanding customers personalized and optimized profiles to reach their expected performances,
either according to Siemens’ or another design.
• optimized lead angle
Besides avoiding DNB phenomenon, optimized profiles allow to
significantly increase thermal efficiency.
• increased rib height
• maximized plane rib flank
Optimized profile combines advantages of “A“ and “B“ profiles
as lower rib width at top or a steep rib side angle.
We have been supplying thousands of metric tonnes of Multi
Lead Rifled (MLR) tubes for Ultra Super Critical power plants all
over the world since 2006.
8
A type Profile
A type Profile
Outside
Diameter
mm/inch
Minimum
wall thickness
mm
inch
Number
of ribs
Major i.d.
Rib height
Lead
Mean weight
Flow section
Sq. inch
Wet internal
perimeter
mm
inch
mm
inch
mm
inch
mm
inch
kg/m
Lb/ft
mm2
31.75
1.250
3.96
4.19
4.57
0.156
0.165
0.180
6
6
6
22.95
22.45
21.60
0.904
0.884
0.850
0.88
0.88
0.87
0.035
0.035
0.034
124.9
122.1
117.5
4.918
4.809
4.624
3.18
3.32
3.55
2.137
2.232
2.384
387
369
340
0.612
0.584
0.538
79.3
77.6
74.9
3.18
3.11
3.00
38.10
1.500
4.19
4.70
5.08
0.165
0.185
0.200
6
6
6
28.80
27.67
26.82
1.134
1.089
1.056
0.96
0.94
0.93
0.038
0.037
0.037
156.7
150.5
145.9
6.169
5.924
5.745
4.07
4.46
4.74
2.735
2.996
3.185
622
572
536
0.977
0.899
0.844
98.2
94.6
91.8
3.93
3.78
3.67
41.28
1.625
4.19
4.65
5.08
5.59
0.165
0.183
0.200
0.220
6
6
6
6
31.97
30.96
30.00
28.87
1.259
1.219
1.181
1.137
1.00
0.98
0.97
0.96
0.039
0.039
0.038
0.038
173.9
168.4
163.2
157.1
6.849
6.631
6.425
6.185
4.44
4.84
5.19
5.60
2.987
3.249
3.489
3.762
772
722
677
625
1.211
1.133
1.062
0.982
108.5
105.2
102.1
98.4
4.34
4.21
4.08
3.94
44.45
1.750
4.19
4.57
5.08
5.59
6.10
0.165
0.180
0.200
0.220
0.240
6
6
6
6
6
35.15
34.30
33.17
32.05
30.92
1.384
1.350
1.306
1.262
1.217
1.04
1.03
1.01
1.00
0.98
0.041
0.040
0.040
0.039
0.039
191.2
186.6
180.5
174.5
168.2
7.529
7.344
7.105
6.865
6.620
4.82
5.18
5.64
6.09
6.53
3.239
3.380
3.793
4.095
4.387
938
892
833
775
720
1.468
1.396
1.305
1.216
1.129
118.8
116.1
112.4
108.7
105.1
4.47
4.63
4.49
4.35
4.20
47.63
1.875
4.57
5.08
5.59
6.10
6.60
0.180
0.200
0.220
0.240
0.260
8
8
6
6
6
37.48
36.35
35.22
34.09
32.96
1.475
1.431
1.387
1.342
1.298
1.06
1.05
1.04
1.02
1.01
0.042
0.041
0.041
0.040
0.040
203.9
197.7
191.6
185.5
179.3
8.024
7.785
7.545
7.300
7.061
5.67
6.18
6.59
7.07
7.53
3.811
4.154
4.428
4.750
5.061
1059
994
942
881
822
1.660
1.560
1.475
1.379
1.288
129.2
125.5
119.0
115.4
111.7
5.17
5.03
4.75
4.61
4.46
50.80
2.000
5.08
5.59
6.10
6.60
0.200
0.220
0.240
0.260
8
8
8
8
39.52
38.40
37.27
36.14
1.556
1.512
1.467
1.423
1.08
1.07
1.06
1.05
0.042
0.042
0.042
0.041
215.0
208.9
202.7
196.6
9.465
8.225
7.980
7.741
6.63
7.17
7.69
8.20
4.457
4.819
5.170
5.511
1182
1113
1047
982
1.851
1.764
1.641
1.542
135.8
132.1
128.5
124.8
5.44
5.29
5.15
5.00
53.98
2.125
5.59
6.10
6.60
7.11
0.220
0.240
0.260
0.280
8
8
8
8
41.57
40.44
39.31
38.19
1.637
1.592
1.548
1.503
1.10
1.09
1.08
1.07
0.043
0.043
0.042
0.042
226.1
220.0
213.9
207.7
8.905
8.660
8.421
8.176
7.67
8.23
8.78
9.32
5.152
5.533
5.903
6.263
1311
1239
1169
1101
2.054
1.940
1.832
1.725
142.4
138.8
135.1
131.5
5.70
5.55
5.41
5.26
57.15
2.250
5.59
6.10
6.60
7.11
7.62
8.13
0.220
0.240
0.260
0.280
0.300
0.320
8
8
8
8
8
8
44.75
43.62
42.69
41.36
40.23
39.11
1.762
1.717
1.637
1.628
1.584
1.540
1.12
1.11
1.10
1.09
1.08
1.07
0.044
0.044
0.043
0.043
0.043
0.042
243.4
237.3
231.1
225.0
218.9
212.7
9.585
9.340
9.101
8.856
8.617
8.378
8.16
8.77
9.37
9.95
10.51
11.06
5.485
5.895
6.295
6.685
7.064
7.432
1525
1448
1372
1298
1226
1156
2.386
2.263
2.147
2.031
1.920
1.813
152.7
149.0
145.4
141.7
138.1
134.4
6.11
5.96
5.82
5.67
5.53
5.38
60.33
2.375
5.59
6.10
6.60
7.11
7.62
8.13
8.59
0.220
0.240
0.260
0.280
0.300
0.320
0.338
8
8
8
8
8
8
8
47.92
46.79
45.66
44.54
43.41
42.28
41.27
1.887
1.842
1.798
1.753
1.709
1.665
1.625
1.15
1.14
1.13
1.12
1.11
1.10
1.09
0.045
0.045
0.045
0.044
0.044
0.043
0.043
260.7
254.5
248.4
242.3
236.1
230.0
224.5
10.265
10.020
9.781
9.536
9.297
9.058
8.840
8.66
9.31
9.95
10.58
11.18
11.78
12.30
5.181
6.258
6.688
7.107
7.515
7.913
8.262
1755
1672
1590
1511
1433
1358
1292
2.743
2.611
2.486
2.361
2.242
2.126
2.023
163.0
159.3
155.7
152.0
148.4
144.7
141.4
6.51
6.37
6.22
6.08
5.93
5.79
5.66
63.50
2.500
6.10
6.60
7.11
7.62
8.13
8.59
9.14
9.53
0.240
0.260
0.280
0.300
0.320
0.338
0.360
0.375
8
8
8
8
8
8
8
8
49.97
48.84
47.71
46.58
45.46
44.44
43.20
42.35
1.967
1.923
1.878
1.834
1.790
1.750
1.701
1.661
1.17
1.16
1.15
1.14
1.13
1.12
1.11
1.10
0.046
0.046
0.045
0.045
0.044
0.044
0.044
0.043
271.8
265.7
259.5
253.4
247.3
241.8
235.0
230.4
10.700
10.461
10.216
9.977
9.738
9-520
9.253
9.068
9.85
10.54
11.20
11.86
12.49
13.05
13.72
14.16
6.621
7.080
7.529
7.967
8.395
8.771
9.218
9.516
1912
1825
1740
1657
1575
1504
1419
1363
2.984
2.850
2.716
2.588
2.464
2.353
2.221
2.131
169.6
165.9
162.3
158.6
155.0
151.7
147.7
145.0
6.77
6.63
6.48
6.34
6.20
6.07
5.91
5.80
9
Manufacturing process
Our manufacturing production flow
For over 40 years, SMP has been improving its manufacturing
process to match ever higher requirements of its customers.
Focus on ribbing process
Ribs are obtained through cold drawing process on a grooved plug
from hollows supplied by SMP mills. After drawing and ribbing
pass, tubes are heat treated to get specified metallurgical requirements.
Before final cutting, tubes are 100% checked by Eddy Current and
/or Ultrasonic test, depending on customer’s requirements.
10
Our tubes are manufactured in our plant located in Vitry-leFrançois (France) by our skilled and experienced workforce.
General information
High quality generates customer confidence and satisfaction and
contributes to a company’s economic performance.
Quality leadership is therefore the overriding objective and is
determinant to our corporate policy.
Our Quality Assurance System covers all stages of production at
all plants involved in the manufacture of our tubes, from the
steelworks via the tube and pipe hot rolling mills right through to
the company’s finishing lines and shipping departments.
In the production process of rifled boiler tubes, the quality chain
is taken over by Salzgitter Mannesmann Precision Etirage whose
Vitry-le-François plant is certified ISO 9001 (2000 version) and
ISO 14001 (1996 version).
Steel
Standard
Grade
Carbon
ASTM A 106
ASTM A 210
EN 10216-2
Grade A, B
Grade A1, C
P235GH, P265 GH
Alloy
ASTM A 209
ASTM A 213
EN 10216-2
T1, T1A
T2, T11, T12, T22, T23
16Mo3, 13CrMo4-5
10CrMo9-10
Other grades and standards may be available upon request.
Lengths
• fixed length tolerances according to international standards
• random length (max. length difference = 2 m)
• Max length up to 24 m
Marking
• ink stencilled on part or full length of tube
• Arrow sign indicating the best flow direction
NDT and checking
• 100% Eddy Current and/or ultra sonic testing according to
ASME or EN standards
• Positive material inspection (PMI)
• Tensile test
• Hardness test
• Specific controls upon request
- Continuous OD checking
- PWHT
- Hot tensile test
- Impact test
- Micrographic inspection
Delivery
• worldwide by sea, rail or road
Quality
• Mill test certificate 3.1, 3.2
• Third Part Inspection: Lloyd’s, TÜV, VERITAS,…
Our range of products also includes smooth boiler tubes
with tight tolerances.
Packing
• tubes can be delivered without protection or dry varnished,
corrosion inhibitor inside tube, plastic caps at both ends are
available
• bundle tied with metal strip
• wooden boxes
11
Salzgitter Mannesmann Precision Etirage SAS
Direct Contact Sales:
Avenue Jean Juif
BP 77 – Z.I.
51300 Vitry-le-François, France
Phone: +33 3 26 41 23 97
Fax:
+33 3 26 41 23 32
E-mail: [email protected]
or Contact: Vallourec & Mannesmann – our worldwide agent
Salzgitter Mannesmann Precision GmbH
Wiesenstraße 36
45473 Mülheim/Ruhr, Germany
www.smp-tubes.com
Salzgitter Mannesmann Precision GmbH, Multi-Rifled seamless cold drawn tubes for power plants, 001 E 12.09
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