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Titanium Stub Ends

Usually, titanium stub ends are used with ASME B16.5 carbon steel backing flanges (lap joint flanges) in pipeline to minimize the cost while maintaining excellent corrosion resistance to fluid. The stub ends may be furnished in short pattern or long pattern in accordance with ASME B16.9. The material covers Grade 1, Grade 2, Grade 3, Grade 5, Grade 7, Grade 9, Grade 12, Grade 16 titanium and its alloys, which shall be made in accordance with ASTM B363. For sizes NPS 6 and smaller, the titanium stub ends will be furnished in seamless type (ASTM B861); for sizes larger than NPS 6, the titanium stub ends will be furnished in welded type (ASTM B265). Application of titanium stub ends: pulp and paper industry, water and seawater service, chemical processes involving oxidizing media and oxidizing acids.

Ti Gr.2 stub ends

Grade 2 titanium stub ends: short pattern and long pattern.

Drawings & Dimensions for Titanium Stub Ends

ASME B16.9 titanium stub end drawing

Drawing of titanium stub ends acc. to ASME B16.9

Nominal SizeOutside Diameter of BarrelLong Pattern
Length, F
Short Pattern
Length, F
Radius of
Fillet, R
Diameter
of Lap, G
NPSMax.
mm.
in.
Min.
mm.
in.
mm.
in.
mm.
in.
mm.
in.
mm.
in.
1/222.8
0.896
20.5
0.809
76
3.00
51
2.00
3
0.12
35
1.38
3/428.1
1.106
25.9
1.019
76
3.00
51
2.00
3
0.12
43
1.69
135.0
1.376
32.6
1.284
102
4.00
51
2.00
3
0.12
51
2.00
1 1/443.6
1.716
41.4
1.629
102
4.00
51
2.00
5
0.19
64
2.50
1 1/249.9
1.965
47.5
1.869
102
4.00
51
2.00
6
0.25
73
2.88
262.4
2.456
59.5
2.344
152
6.00
64
2.50
8
0.31
92
3.62
2 1/275.3
2.966
72.2
2.844
152
6.00
64
2.50
8
0.31
105
4.12
391.3
3.596
88.1
3.469
152
6.00
64
2.50
10
0.38
127
5.00
3 1/2104.0
4.096
100.8
3.969
152
6.00
76
3.00
10
0.38
140
5.50
4116.7
4.593
113.5
4.469
152
6.00
76
3.00
11
0.44
157
6.19
5144.3
5.683
140.5
5.532
203
8.00
76
3.00
11
0.44
186
7.31
6171.3
6.743
167.5
6.594
203
8.00
89
3.50
13
0.50
216
8.50
8222.1
8.743
218.3
8.594
203
8.00
102
4.00
13
0.50
270
10.62
10277.2
10.913
272.3
10.719
254
10.00
127
5.00
13
0.50
324
12.75
12328.0
12.913
323.1
12.719
254
10.00
152
6.00
13
0.50
381
15.00
14359.9
14.170
354.8
13.969
305
12.00
152
6.00
13
0.50
413
16.25
16411.0
16.180
405.6
15.969
305
12.00
152
6.00
13
0.50
470
18.50
18462.0
18.190
456.0
17.969
305
12.00
152
6.00
13
0.50
533
21.00
20514.0
20.240
507.0
19.969
305
12.00
152
6.00
13
0.50
584
23.00
22565.0
22.240
558.0
21.969
305
12.00
152
6.00
13
0.50
641
25.25
24616.0
24.240
609.0
23.969
305
12.00
152
6.00
13
0.50
692
27.25
*Dimensions are presented with both metric and US Customary units.
*Gasket face finish shall be in accordance with ASME B16.5 for raised face flanges.
*The lap thickness, T, shall not be less than nominal pipe wall thickness.
*Short pattern titanium stub ends are applicable for ASME B16.5 flanges of 300#, 600#, and 900#.
*Long pattern titanium stub ends are applicable for AMSE B16.5 flanges of 1500# and 2500#.
*Custom-designed titanium stub ends can be manufactured upon request.

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    No. 176, Zhonghua South Street, Shijiazhuang, China.
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