SS Butt Weld Fitting Stub Ends , Flange lap joint in welding , MSS SP-43 Type A , Type B, B16.9

Stub ends are buttweld fittings that can be used (in combination with a lap joint flange) alternatively to welding neck flanges to make flanged connections. The use of stub ends has two advantages: it can reduce the total cost of flanged joints for piping systems in high material grades (as the lap joint flange does not need to be of the same material of the pipe and the stub end but can be a lower grade); it speeds up the installation process, as the lap joint flange can be rotated to facilitate the alignment of the bolt holes. Stub ends are available in short and long pattern (ASA and MSS stub ends), in sizes up to 80 inches.

Products information:
Size : 1/8"NB TO 100"NB

Schedule : SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS

Type : Seamless / ERW / Welded / Fabricated /Forged

Form : Eccentric Reducer, Concentric Reducer

Materials
Stainless Steel Reducer - SS Reducer
ASTM A403 WP Gr. 304, 304H, 309, 310, 316, 316L, 317L, 321, 347, 904L

Carbon Steel Reducer - CS Reducer
ASTM A 234 WPB , WPBW, WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 & WPHY 70.

Low Temperature Carbon Steel Reducer - LTCS Reducer
ASTM A420 WPL3 / A420WPL6

Alloy Steel Reducer - AS Reducer
ASTM / ASME A/SA 234 Gr. WP 1, WP 5, WP 9, WP 11, WP 12, WP 22, WP 91

Duplex Steel Reducer
ASTM A 815 UNS NO S 31803 , S 32205.

Nickel Alloy Reducer
Standard

• ASTM / ASME SB 336.
• UNS 10276 (HASTELLOY C 276 Reducer)
• UNS 2200 (NICKEL 200 Reducer),
• UNS 2201 (NICKEL 201 Reducer),
• UNS 4400 (MONEL 400 Reducer),
• UNS 8020 (ALLOY 20 Reducer),
• UNS 8825 (INCONEL 825 Reducer),
• UNS 6600 (INCONEL 600 Reducer),
• UNS 6601 (INCONEL 601 Reducer),
• UNS 6625 (INCONEL 625 Reducer),

Value Added Services

• Hot Dip Galvanizing
• Epoxy Coating

Test Certificate
Mill Test Certificate as per EN 10204 / 3.1B

Pipe Fitting - Lap Joint

Standard

Nominal Pipe Size	Outside Diameter	Inside Diameter	Wall and Lap Thickness	Lap Diameter G	Fillet Radius R	Overall Length	Pipe Schedule	Weight in Pounds
1/2	0.84	0.622	0.109	1.38	0.12	3	40	0.3
3/4	1.05	0.824	0.113	1.07	0.12	3	40	0.4
1	1.32	1.05	0.133	2	0.12	4	40	0.75
1 1/4	1.66	1.38	0.14	2 .50	0.19	4	40	1.1
1 1/2	1.9	1.61	0.145	2.88	0.25	4	40	1.25
2	2.38	2.07	0.154	3.63	0.31	6	40	2.25
2 1/2	2.88	2.45	0.203	4.13	0.31	6	40	3.5
3	3.5	3.07	0.216	5	0.38	6	40	4.75
3 1/2	4	3.55	0.226	5.5	0.38	6	40	6
4	4.5	4.03	0.237	6.12	0.44	6	40	7.25
5	5.56	5.05	0.258	7.31	0.44	8	40	12
6	6.63	6.07	0.28	8.5	0.5	8	40	16
8	8.63	7.98	0.322	10.63	0.5	8	40	23
10	10.75	10.02	0.365	12.75	0.5	10	40	36
12	12.75	12	0.375	15	0.5	10	*	47

Extra Strong

Nominal Pipe Size	Outside Diameter	Inside Diameter	Wall and Lap Thickness	Lap Diameter G	Fillet Radius R	Overall Length	Pipe Schedule	Weight in Pounds
1/2	0.84	0.546	0.147	1.38	0.12	3	80	0.38
3/4	1.05	0.724	0.154	1.69	0.12	3	80	0.51
1	1.32	0.957	0.179	2	0.12	4	80	1
1 1/4	1.66	1.28	0.191	2.5	0.19	4	80	1.25
1 1/2	1.9	1.5	0.2	2.88	0.25	4	80	1.75
2	2.38	1.93	0.218	3.63	0.31	6	80	3
2 1/2	2.88	2.32	0.276	4.13	0.31	6	80	4.5
3	3.5	2.9	0.3	5	0.38	6	80	6.5
3 1/2	4	3.36	0.318	5.5	0.38	6	80	7.75
4	4.5	3.83	0.337	6.19	0.44	6	80	9.5
5	5.56	4.81	0.375	7.31	0.44	8	80	17
6	6.63	5.76	0.432	8.5	0.5	8	80	23
8	8.63	7.63	0.5	10.63	0.5	8	80	32
10	10.75	9.75	0.5	12.75	0.5	10	60	53
12	12.75	11.75	0.5	15	0.5	10	*	62

butt welding fittings

forged steel fittings

SS Butt Weld Fitting Stub Ends , Flange lap joint in welding , MSS SP-43 Type A , Type B , B16.9 Images