Buttweld Stub End Fittings
Stainless Steel Stub End, SS Stub End for Flanges, Carbon Steel Lap Joint Stub End, Nickel Alloy Long Stub End, Alloy Steel Stub End Manufacturer & Exporter
ANSI/ASME B16.9 Stub End Suppliers / Lap Joint Stub End Dealers in India
Nakshatra Steel & Alloys is one of the leading supplier and exporter of a wide range of quality Stub Ends fittings in India. The Butt-weld Stub End manufactured using superior grade raw materials. We are known as specialist in ASME B16.9 Butt-weld Stub End. We also manufacture customized ANSI/ASME B16.9 Butt weld Stub End as per the client’s specifications.
Stub Ends are readily available at Nakshatra Steel & Alloys in different types and standard lengths. We offer ANSI Pattern (MSS-Type A), MSS-Type B, SK-3-P-Type C, Type Cs stub ends in mainly three standard lengths, ANSI B16.9 Pattern Stub End and ANSI B16.9 Long Pattern Stub End or MSS SP43 Stub End with numerous ASTM and other international materials Grade to match pipe specifications. Material grade which are commonly used for stub end are ASTM A403, ASME SA403, ANSI /ASME B16.9 (stainless steel stub ends).
The range we offer includes Stainless Steel Stub Ends, Carbon Steel Stub Ends, Alloy Steel Stub Ends, etc. Our ANSI/ASME B16.9 Butt-weld Stub Ends & Other Fitting products are manufactured using high quality material and go through a rigorous quality check at all stages of production to ensure quality. Our Products are compliance with international quality standards, these ANSI/ASME B16.9 Lap Joint Stub Ends are corrosion resistance, and durable sturdy.
We also offer third party inspection to our customer’s for ANSI B16.9, ASTM A403, etc. We deliver Lap Joint Stub Ends from reputed agencies such as EIL, H&G, LLOYDS, TCE, MECONS, PDIL, Bureau Veritas, DNV, DPG, SGS, IRS, etc. Call us now for you all pipe fittings needs. We deliver products all over worldwide.
Types of Stub End
Buttweld Stub End Specifications:
| Standards | : | ANSI – B 16.9, ASTM A403 – ASME SA403 – ‘Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings’, API 590-605, ASME B16.9 – ‘Factory-Made Wrought Buttwelding Fittings”, ASME B16.25 – ‘Buttwelding Ends’, ASME B16.28 – ‘Wrought Steel Buttwelding Radius Elbows and Returns’, MSS SP-43 – ‘Wrought and Fabricated Butt-Welding Fittings for Low Pressure, Corrosion Resistant Applications’ |
| Variations | : | Welded & Seamless, MSS-A; MSS-B; MSS-C, type & Long type |
| Dimensions | : | 1/2"NB TO 36"NB IN / Outside diameter : 1/2" à 24" (21,34 – 609,5 mm) Thickness: SCH 5S, 10S, 40S (STD), 80S (XS), 160, XXS (1,65 – 59.51 mm) |
| Materials | : | Monel, Nickel, Inconel, Hastalloy, Titanium, Tantalum, Stainless Steel, Alloy Steel, Carbon Steel, Cupro-Nickel 90/10 & 70/30, Stainless Steel ASME / ASTM SA / A403 SA / A 774 WP-S, WP-W, WP-WX, 304, 304L, 316, 316L, 304/304L, 316/316L, DIN 1.4301, DIN1.4306, DIN 1.4401, DIN 1.4404 |
| Type | : | Butt Weld (BW) / Welded / ERW / Welded / Fabricated |
| Thickness | : | Schedule 5S, 10S, 20S, S10, S20, S30, STD, 40S, S40, S60, XS, 80S, S80, S100, S120, S140, S160, XXS and etc. |
| Dimension | : | ANSI B16.9, ANSI B16.28, MSS-SP-43 Type A, MSS-SP-43 Type B, JIS B2312, JIS B2313 |
Buttweld Stub End Material & Grades
| Stainless Steel Stub End | |
| ASTM A403 WP316/316L, ASTM A403 SA / A 774 WP-S, WP-W, WP-WX 304/304L, ASTM A182 F316L, 304L, DIN 1.4301, DIN1.4306, DIN 1.4401, DIN 1.4404 | |
| Duplex Steel Stub End / Super Duplex Steel Stub End | |
| ASTM A 815, ASME SA 815 UNS NO S31803, S32205. UNS S32750, S32950. Werkstoff No. 1.4462 | |
| Carbon Steel Stub End | |
| ASTM A234, ASME SA234 WPB , WPBW, WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 & WPHY 70. | |
| Low Temperature Carbon Steel Stub End | |
| ASTM A420 WPL3, A420 WPL6 | |
| Alloy Steel Stub End | |
| ASTM / ASME A/SA 234 Gr. WP 1, WP 5, WP 9, WP 11, WP 12, WP 22, WP 91 | |
| Nickel Alloy Stub End | |
| ASTM B336, ASME SB336, Nickel 200 (UNS No. No2200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020), Titanium (Grade I & II), Cupro-Nickel 70/30, CuNi10Fe1Mn, CuNi30Mn1Fe. | |
STUB END DIMENSIONS :
| Nominal Pipe Size | Outside diameter of barrel |
Length (F) | Radius (R) | Diameter (G) | ||
|---|---|---|---|---|---|---|
| Minimum | Maximum | Long Pattern |
Short Pattern |
|||
1/2" |
20.5 |
22.8 |
76 |
51 |
3 |
35 |
3/4" |
25.9 |
28.1 |
76 |
51 |
3 |
43 |
1" |
32.6 |
35.0 |
102 |
51 |
3 |
51 |
1 1/4" |
41.4 |
43.6 |
102 |
51 |
5 |
64 |
1 1/2" |
47.5 |
49.9 |
102 |
51 |
6 |
74 |
2" |
59.5 |
62.4 |
152 |
64 |
8 |
92 |
2 1/2" |
72.2 |
75.3 |
152 |
64 |
8 |
105 |
3" |
88.1 |
91.3 |
152 |
64 |
10 |
127 |
3 1/2" |
100.8 |
104.0 |
152 |
76 |
10 |
140 |
4" |
113.5 |
116.7 |
152 |
76 |
11 |
157 |
5" |
140.5 |
144.3 |
203 |
76 |
11 |
186 |
6" |
167.5 |
171.3 |
203 |
89 |
13 |
216 |
8" |
218.3 |
222.1 |
203 |
102 |
13 |
270 |
10" |
272.3 |
277.2 |
254 |
127 |
13 |
324 |
12" |
323.1 |
328.0 |
254 |
152 |
13 |
381 |
14" |
354.8 |
359.9 |
305 |
152 |
13 |
413 |
16" |
405.6 |
411.0 |
305 |
152 |
13 |
470 |
18" |
456.0 |
462.0 |
305 |
152 |
13 |
533 |
20" |
507.0 |
514.0 |
305 |
152 |
13 |
584 |
22" |
558.0 |
565.0 |
305 |
152 |
13 |
641 |
24" |
609.0 |
616.0 |
305 |
152 |
13 |
692 |
STUB ENDS - ANSI AND MSS SP-43 DIMENSIONS
| inches | ND | mm | Diameter of lap | Radius of fillet |
Length F | ||
D |
G | R | R1 | MSS SP43 | ANSI B16.9 | ||
1/2 |
15 |
21,34 |
34,92 |
3,17 |
0,80 |
50,80 |
76,20 |
3/4 |
20 |
26,67 |
42,86 |
3,17 |
0,80 |
50,80 |
76,20 |
1 |
25 |
33,40 |
50,80 |
3,17 |
0,80 |
50,80 |
101,60 |
1 1/4 |
32 |
42,16 |
63,50 |
4,76 |
0,80 |
50,80 |
101,60 |
1 1/2 |
40 |
48,26 |
73,00 |
6,35 |
0,80 |
50,80 |
101,60 |
2 |
50 |
60,32 |
92,10 |
7,93 |
0,80 |
63,50 |
152,40 |
2 1/2 |
65 |
73,02 |
104,80 |
7,93 |
0,80 |
63,50 |
152,40 |
3 |
80 |
88,90 |
127,00 |
9,52 |
0,80 |
63,50 |
152,40 |
3 1/2 |
90 |
101,60 |
139,70 |
9,52 |
0,80 |
76,20 |
152,40 |
4 |
100 |
114,30 |
157,20 |
11,11 |
0,80 |
76,20 |
152,40 |
5 |
125 |
141,30 |
185,70 |
11,11 |
1,58 |
76,20 |
203,20 |
6 |
150 |
168,27 |
215,90 |
12,70 |
1,58 |
88,90 |
203,20 |
8 |
200 |
219,07 |
269,80 |
12,70 |
1,58 |
101,60 |
203,20 |
10 |
250 |
273,05 |
323,80 |
12,70 |
1,58 |
127,00 |
254,00 |
12 |
300 |
323,85 |
381,00 |
12,70 |
1,58 |
152,40 |
254,00 |
14 |
350 |
355,60 |
412,70 |
12,70 |
1,58 |
152,40 |
304,80 |
16 |
400 |
406,40 |
469,90 |
12,70 |
1,58 |
152,40 |
304,80 |
18 |
450 |
457,20 |
533,40 |
12,70 |
1,58 |
152,40 |
304,80 |
20 |
500 |
508,00 |
584,20 |
12,70 |
1,58 |
152,40 |
304,80 |
22 |
550 |
558,80 |
641,30 |
12,70 |
1,58 |
152,40 |
304,80 |
24 |
600 |
609,60 |
692,10 |
12,70 |
1,58 |
152,40 |
304,80 |
| The lap thickness T shall not be less than nominal pipe wall thickness t | |||||||
STUB ENDS - ANSI 16.9 TOLERANCES
DIMENSIONAL TOLERANCES - STUB ENDS |
||||||
| For all fittings | Stub Ends | |||||
| Nominal Pipe Size (NPS) | Outside Ø at Bevel | Indide Ø at End | Wall Thickness t / t1 |
O.D. of Lap G | Fillet Radius of Lap - R | Overall Length. - F |
1/2 a 2 1/2 |
1 |
0,8 |
Not |
+0 -1 |
+0 -1 |
2 |
3 a 3 1/2 |
1 |
1,6 |
less |
+0 -1 |
+0 -1 |
2 |
4 |
+2 -1 |
1,6 |
than |
+0 -1 |
+0 -2 |
2 |
5 a 6 |
+3 -1 |
1,6 |
87,50% |
+0 -1 |
+0 -2 |
2 |
8 |
2 |
1,6 |
of nominal |
+0 -1 |
+0 -2 |
2 |
10 |
+4 -3 |
3,2 |
tickness |
+0 -2 |
+0 -2 |
2 |
12 to 18 |
+4 -3 |
3,2 |
+0 -2 |
+0 -2 |
3 |
|
20 a 24 |
+6 -5 |
4,8 |
+0 -2 |
+0 -2 |
3 |
|
26 a 30 |
+7 -5 |
4,8 |
||||
32 a 48 |
+7 -5 |
4,8 |
||||
STUB ENDS - WEIGHTS
NPS inches |
STUB ENDS |
|||
Sch. 5S |
Sch. 10S |
Sch. 40S |
Sch. 80S |
|
1/2 |
0.06 |
0.08 |
0.12 |
0.13 |
3/4 |
0.07 |
0.09 |
0.15 |
0.17 |
1 |
0.09 |
0.15 |
0.20 |
0.25 |
1 1/4 |
0.13 |
0.20 |
0.30 |
0.35 |
1 1/2 |
0.16 |
0.25 |
0.38 |
0.46 |
2 |
0.25 |
0.40 |
0.55 |
0.75 |
2 1/2 |
0.35 |
0.50 |
0.80 |
1.00 |
3 |
0.50 |
0.60 |
1.10 |
1.50 |
4 |
0.70 |
1.00 |
1.80 |
2.50 |
5 |
1.00 |
1.25 |
2.50 |
3.50 |
6 |
1.60 |
1.95 |
3.70 |
5.50 |
8 |
2.50 |
3.10 |
5.90 |
10.0 |
10 |
4.00 |
4.90 |
10.5 |
14.0 |
12 |
6.60 |
7.10 |
15.0 |
20.0 |
14 |
6.40 |
7.80 |
15.5 |
20.5 |
16 |
7.90 |
9.00 |
18.0 |
24.0 |
18 |
9.30 |
10.5 |
21.0 |
28.0 |
20 |
12.0 |
13.5 |
23.5 |
31.0 |
24 |
16.5 |
19.0 |
28.5 |
38.0 |
Approximate weights in kg, density 8 kg/dm3 |
||||
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Stub End Buttweld Fitting Exporters & Suppliers
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