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What is Stainless Steel Buttweld Collar?
A Stainless Steel Buttweld Collar is a type of fitting used to join two pipes or tubes of the same diameter. It is designed to be welded to the pipe or tube, and then joined to another pipe or tube using a similar collar. The collar is made from a high-quality stainless steel material that is designed to withstand high pressures and temperatures. It is commonly used in industries such as oil and gas, chemical processing, and petrochemicals. The collar is manufactured with a precision machining process, ensuring that it fits tightly and securely onto the pipe or tube. It is also available in different sizes and thicknesses, depending on the specific application requirements.
Specifications of ASME B16.9 Buttweld Collar
| Sizes | Seamless Butt Weld Fittings: 1/2″ – 10″，Welded Butt Weld Fittings: 1/2″ – 48″ |
| Standards | ANSI/ASME :ASTM A403 / ASME SA403, ANSI B16.9, ASME B16.25, ASME B16.28, MSS SP-43.DIN : DIN2605, DIN2615, DIN2616, DIN2617, DIN28011,EN : EN10253-1, EN10253-2. |
| Dimensions | ASME/ANSI B16.9, MSS-SP-43 Type A, MSS-SP-43 Type B, JIS B2312, JIS B2313, ASME B16.28 |
| Thickness | Schedule 5S, 10S, 20S, S10, S20, S30, STD, 40S, S40, S60, XS, 80S, S80, S100, S120, S140, S160, XXS and etc. |
| Collaring Radius | R=10D |
| From | Pipe Collar, Butt weld Collar, Fitting Collar |
| Grades&Materials | ASTM A403 WP316/316L, ASTM A403 WP304/304L, ASTM A182 F316L, 304L, FRA 1.4301, DIN1.4306, FRA 1.4401, FRA 1.4404, 304H, 309, 310, 316, 316L, 317L, 321, 347, 904L，ASTM A234, ASME SA234 WPB , WPBW, WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 & WPHY 70.ASTM A234, ASME SA234 WP1 / WP5 / WP9 / WP11 / WP22 / WP91，ASTM A815, ASME SA815 UNS No S31803, S32205，ASTM A815, ASME SA815 UNS No S32750, S32950，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.ASTM A420 WPL3, A420 WPL6. |
| Type | Seamless / ERW / Welded / Fabricated |
Buttweld Collar Manufacturing Standards
| ASME Standard | ASME/ANSI B16.9, ASME/ANSI B16.28, MSS-SP-43 |
| DIN Standard | DIN28011, DIN2617, DIN2616, DIN2615, DIN2605 |
| EN Standard | EN10253-2, EN10253-1 |
| ASME B16.25 | Buttwelding Ends |
| ASME B16.9 | Factory-Made Wrought Fittings Buttwelding |
| ASME B16.28 | Wrought Steel Collar and Buttwelding Returns |
| ASTM A403 – ASME SA403 | Standard Specification for Wrought Austenitic SS Piping Fitting |
| MSS SP-43 | Wrought & Fabricated Butt-Welding Fitting for Low Pressure, Corrosion Resistant Application |
BUTT WELD COLLAR MATERIAL & GRADES :
Stainless Steel Pipe Collar : ASTM A403 WP316/316L, ASTM A403 WP304/304L, ASTM A182 F316L, 304L, FRA 1.4301, DIN1.4306, FRA 1.4401, FRA 1.4404, 304H, 309, 310, 316, 316L, 317L, 321, 347, 904L
Carbon Steel Pipe Collar : ASTM A234, ASME SA234 WPB , WPBW, WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 & WPHY 70.
Alloy Steel Pipe Collar : ASTM A234, ASME SA234 WP1 / WP5 / WP9 / WP11 / WP22 / WP91
Duplex Steel Pipe Collar : ASTM A815, ASME SA815 UNS No S31803, S32205
Super Duplex Pipe Collar : ASTM A815, ASME SA815 UNS No S32750, S32950
Nickel Alloy Pipe Collar : 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.
Low Temperature Carbon Steel Pipe Collar : ASTM A420 WPL3, A420 WPL6
ASME B16.9 Butt Weld Collars Dimensions
ASME B16.9 Butt Weld Collars Dimensions
| Collar Dimenssions for ANSI 150 Flanges | |||||
| inches | ND | mm | Diameter
of lap |
Height | Radius of
fillet |
| D | G | H | R | ||
| 1/2 | 15 | 21,34 | 34,92 | 5 | 3 |
| 3/4 | 20 | 26,67 | 42,86 | 6 | 3 |
| 1 | 25 | 33,40 | 50,80 | 8 | 3 |
| 1 1/4 | 32 | 42,16 | 63,50 | 8 | 5 |
| 1 1/2 | 40 | 48,26 | 73,00 | 10 | 6 |
| 2 | 50 | 60,32 | 92,10 | 10 | 8 |
| 2 1/2 | 65 | 73,02 | 104,80 | 12 | 8 |
| 3 | 80 | 88,90 | 127,00 | 12 | 9 |
| 3 1/2 | 90 | 101,60 | 139,70 | 12 | 9 |
| 4 | 100 | 114,30 | 157,20 | 14 | 11 |
| 5 | 125 | 141,30 | 185,70 | 16 | 11 |
| 6 | 150 | 168,27 | 215,90 | 16 | 12 |
| 8 | 200 | 219,07 | 269,80 | 18 | 12 |
| 10 | 250 | 273,05 | 323,80 | 20 | 12 |
| 12 | 300 | 323,85 | 381,00 | 20 | 12 |
| 14 | 350 | 355,60 | 412,70 | 25 | 12 |
| 16 | 400 | 406,40 | 469,90 | 25 | 12 |
| 18 | 450 | 457,20 | 533,40 | 25 | 12 |
| 20 | 500 | 508,00 | 584,20 | 25 | 12 |
| 22 | 550 | 558,80 | 641,30 | 25 | 12 |
| 24 | 600 | 609,60 | 692,10 | 25 | 12 |
| Collars for UNI and DIN Flanges | |||||||
| inches | ND | mm | Diameter
of lap G |
Height | Radius of
fillet |
||
| D | PN
2,5-6 |
PN
10 |
PN
16 |
H | R | ||
| 1/2 | 15 | 21,34 | 40 | 45 | 45 | 5 | 2 |
| 3/4 | 20 | 26,67 | 50 | 58 | 58 | 8 | 2 |
| 1 | 25 | 33,40 | 60 | 68 | 68 | 8 | 3 |
| 1 1/4 | 32 | 42,16 | 70 | 78 | 78 | 8 | 3 |
| 1 1/2 | 40 | 48,26 | 80 | 88 | 88 | 10 | 3 |
| 2 | 50 | 60,32 | 90 | 102 | 102 | 10 | 4 |
| 2 1/2 | 65 | 73,02 | 110 | 122 | 122 | 12 | 4 |
| 3 | 80 | 88,90 | 128 | 138 | 138 | 12 | 5 |
| 4 | 100 | 114,30 | 148 | 158 | 158 | 14 | 5 |
| 5 | 125 | 141,30 | 178 | 188 | 188 | 14 | 5 |
| 5 | 125 | 141,30 | 178 | 188 | 188 | 14 | 5 |
| 6 | 150 | 168,27 | 202 | 212 | 212 | 16 | 6 |
| 8 | 200 | 219,07 | 258 | 268 | 268 | 18 | 6 |
| 10 | 250 | 273,05 | 312 | 320 | 320 | 20 | 6 |
| 12 | 300 | 323,85 | 365 | 370 | 378 | 20 | 6 |
| 14 | 350 | 355,60 | 415 | 430 | 438 | 25 | 8 |
| 16 | 400 | 406,40 | 465 | 482 | 490 | 25 | 8 |
| 18 | 450 | 457,20 | 520 | 532 | 550 | 25 | 8 |
| 20 | 500 | 508,00 | 570 | 585 | 610 | 25 | 8 |
Dimensional Tolerances of Collars ASME B16.9
Dimensional tolerances are in millimeters unless otherwise indicated and are equal ± except as noted.
MSS SP-43 only covers Stainless Steel Buttweld Ffittings made for use with Schedule 5S and 10S pipe and Stub Ends suitable for use with Schedule 40S pipe, as defined in ASME B36.19. The dimensions and dimensional tolerances defined in MSS SP-43 are substantially the same as those in ASME B16.9 specifications from NPS 1/2 – NPS 24. Except with regard to the outside diameter at the bevel.
| DIMENSIONAL TOLERANCES – Collar | ||||
| For all Fittings | ||||
| Nominal Pipe Size (NPS) | Outside Ø at Bevel | Inside Ø at End | Wall Thickness
t / t1 |
|
| 1/2 a 2 1/2 | 1 | 0,8 | Not | |
| 3 a 3 1/2 | 1 | 1,6 | less | |
| 4 | +2 -1 | 1,6 | than | |
| 5 a 6 | +3 -1 | 1,6 | 87,50% | |
| 8 | 2 | 1,6 | of nominal | |
| 10 | +4 -3 | 3,2 | tickness | |
| 12 a 18 | +4 -3 | 3,2 | ||
| 20 a 24 | +6 -5 | 4,8 | ||
| 26 a 30 | +7 -5 | 4,8 | ||
| 32 a 48 | +7 -5 | 4,8 | ||
Weight of SS Buttweld Collars
| NPS | STD | XS | SCH 160 | XXS |
| 1 | 0.09 | 0.14 | 0.18 | 0.23 |
| 1.1/4 | 0.14 | 0.18 | 0.23 | 0.34 |
| 1.1/2 | 0.18 | 0.23 | 0.27 | 0.41 |
| 2 | 0.27 | 0.34 | 0.57 | 0.68 |
| 2.1/2 | 0.41 | 0.45 | 0.79 | 1.13 |
| 3 | 0.68 | 0.79 | 1.32 | 1.81 |
| 3.1/2 | 0.91 | 1.13 | – | 2.72 |
| 4 | 1.13 | 1.36 | 2.68 | 3.4 |
| 5 | 2.04 | 2.49 | 4.54 | 5.44 |
| 6 | 2.95 | 4.08 | 6.8 | 8.16 |
| 8 | 5.44 | 7.26 | 14.06 | 13.61 |
| 10 | 9.07 | 11.34 | 25.85 | – |
| 12 | 13.61 | 16.33 | 43.09 | – |
| 14 | 16.33 | 20.41 | – | – |
| 16 | 18.14 | 24.49 | – | – |
| 18 | 24.49 | 32.66 | – | – |
| 20 | 34.02 | 39.01 | – | – |
| 22 | 42.64 | 56.7 | – | – |
| 24 | 43.54 | 58.97 | – | – |
| 26 | 53.98 | 72.12 | – | – |
| 30 | 78.02 | 103.87 | – | – |
ASME B16.9 SS Collar Angularity Tolerance
| ND | Max off angle | Max off plane |
| Q | P | |
| 1/2 a 4 | 1 | 2 |
| 5 a 8 | 2 | 4 |
| 10 a 12 | 3 | 5 |
| 14 a 16 | 3 | 7 |
| 18 a 24 | 4 | 10 |
| 26 a 30 | 5 | 10 |
| 32 a 42 | 5 | 13 |
| 44 a 48 | 5 | 20 |
Applications Of ASME B 16.9 Buttweld Collar
- ASME B 16.9 Buttweld Collar used in Chemical and petrochemical processing
- ASME B 16.9 Buttweld Collar used in refineries
- ASME B 16.9 Buttweld Collar used in electronics
- ASME B 16.9 Buttweld Collar used in fertilizer
- ASME B 16.9 Buttweld Collar used in power plant
- ASME B 16.9 Buttweld Collar used in nuclear power
- ASME B 16.9 Buttweld Collar used in oil and gas
ASME B 16.9 Buttweld Collar used in paper industries
