Flanges

BUTTWELD FITTINGS

LAP JOINT STUD ENDS

We are globally well renowned as the Best Quality Buttweld Fittings manufacturer in India. We cater an ample assortment of Buttweld Fittings which is incorporated using high technology machines. Our Buttweld Fittings are demanded by all due to their less maintenance, high tensile strength and excellent finish. High reliability and durability are the salient features of our Buttweld Fittings. We stand in the midst of predominant Buttweld Fittings suppliers in India. We deliver our Buttweld Fittings at very competitive prices and within the specified time.

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 Short Radius Elbows and Returns'
MSS SP-43 - 'Wrought and Fabricated Butt-Welding Fittings for Low Pressure, Corrosion Resistant Applications'
Schedule: Sch 5 TO Sch XXS.
Sizes: 1/2” TO 36”
(SEAMLESS UPTO 24”)
(WELDED 8” TO 36” )
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)
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

 

Dimensions

ASME B16.9

FACTORY-MADE WROUGHT BUTTWELDING FITTINGS

DIMENSIONS OF  LAP JOINT STUB ENDS

Nominal   Pipe  Size

 (NPS)

Outside Diameter at Bevel Long Pattern Short Pattern Radius of Fillet Diameter of Lap
Max Min F F R G
1/2 22.8 20.5 76 51 3 35
3/4 28.1 25.9 76 51 3 43
1 35.0 32.6 102 51 3 51
1-1/4 43.6 41.4 102 51 5 64
1-1/2 49.9 47.5 102 51 6 73
2 62.4 59.5 152 64 8 92
2-1/2 75.3 72.2 152 64 8 105
3 91.3 88.1 152 64 10 127
3-1/2 104.0 100.8 152 76 10 140
4 116.7 113.5 152 76 11 157
5 144.3 140.5 203 76 11 186
6 171.3 167.5 203 89 13 216
8 222.1 218.3 203 102 13 270
10 277.2 272.3 254 127 13 324
12 328.0 323.1 254 152 13 381
14 359.5 354.8 305 152 13 413
16 411.0 405.6 305 152 13 470
18 462 456 305 152 13 533
20 514 507 305 152 13 584
22 565 558 305 152 13 641
24 616 609 305 152 13 692

 

GENERAL NOTES: All Dimensions are in Millimeters.

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

 

STUD END - End welding bevels