ASME B16.9 Fittings are under the ASME B16.9 standard which covers the fitting ranging NPS ½ through NPS 48. The measurements are also DN 15 through DN1200 in the DN standards. R.C. Metal Corporation is a leading manufacturer and supplier of the fitting in the ASME B16 9 Standard and the fitting vary in shape, size and type with different grades of materials. The standard covers tolerances, ratings, markings, testing and overall dimensions of buttweld fittings that are wrought in production type. The ASME B16.9 pipe fittings can be made up of carbon steel or ferritic alloy steel materials and the sizes can range from 5mm to 22mm in wall thickness.
The austenitic stainless steel made fittings can range from 3mm to 22mm in thickness. The Pipe Fittings ANSI b16.9 are produced from different materials such as the 304, 316, 310, 403 and their different carbon versions as well. The 304 buttweld fittings are the most commonly used because of their low cost, high strength and high operating temperatures among the ASME B16.9 Material grades. The use of the fitting is seen in different industrial applications. The strength of the fittings ranges from 205MPa minimum yield strength for the 304, 316 grades and above for the carbon steel types. ASME B16.9 stainless steel fittings are used in domestic applications like water lines and commercial and industrial applications like in marine, sea water, nuclear and in petrochemical industries. The ANSI B16.9 fittings vary in types such as elbows, couplings, bends, caps and tees. The different materials are used for different purposes.
The carbon steel fittings are tougher than other stainless steels. So the ASME B16.9 Carbon Steel Fittings are used in applications that have to deal with more wear and tear resistance and demand high toughness. The application of the Pipe Fittings ASME B16.9 ranges to offshore oil drilling, power generation plants, gas processing, specialty chemicals, pharmaceuticals and paper and pulp industries. The more robust and strong ASME B16.9 Butt-Welding Pipe Fittings can also be used in pressure vessel and high temperature applications such as heat exchangers and condensers. Please feel free to contact us for more information on the ASME B16.9 Alloy Steel Fittings and their pricing.
Standard | ANSI / ASME B16.9, MSS SP-43, API 590-605 |
---|---|
Dimension | ASME/ ANSI B16.9 | ASME B16.28 | MSS-SP-43 | BS1560 | BS4504 | BS10 |
Thickness of Fitting | SCH10, SCH 20, SCH30, STD SCH40, SCH80, SCH60, XS, SCH100, SCH 120, SCH140, SCH 160, XXS available with NACE MR 01-75 |
Size Ranges | ½” NB to 24″ NB in Schedule 10s, 40s, 80s, 160s, XXS. |
Types | Welded | Seamless | Fabricated |
Sizes | Seamless ButtWeld Fitting: From 1/2″ - 10″ Welded ButtWeld Fitting: From 1/2″ - 48″ |
Nominal Pipe Size | Diameter Nominal | Outer Dia. | Inner Dia. | Off Angle, Q | Off Plane, P |
---|---|---|---|---|---|
1/2~2-1/2 | 15~65 | +1.6, -0.8 | ±0.8 | ±1 | ±2 |
3~3-1/2 | 80~90 | ±1.6 | ±1.6 | ±2 | ±4 |
4 | 100 | ±1.6 | ±1.6 | ±3 | ±5 |
5~8 | 125~200 | +2.4, -1.6 | ±1.6 | ±3 | ±6 |
10~18 | 250~450 | +4.0, -3.2 | ±3.2 | ±4 | ±10 |
20~24 | 500~600 | +6.4, -4.8 | ±4.8 | ±5 | ±10 |
26~30 | 650~750 | +6.4, -4.8 | ±4.8 | ±5 | ±13 |
32~48 | 800~1200 | +6.4, -4.8 | ±4.8 | ±5 | ±19 |
Butt Weld Fittings Materials Comparison Chart | ||
---|---|---|
Werkstoff Number | European Grade | ASTM Grade |
CARBON STEEL FITTINGS MATERIALS | ||
1.0254 St 37.0 | S235 | – |
– – | – | – |
1.0305 St 35.8/I | P235GH (1.0345) | A 234 Grade WPA |
1.0305 St 35.8/III | P235GH (1.0345) | – |
1.0405 St 45.8/I | P265GH (1.0425) | A 234 Grade WPB |
1.0405 St 45.8/III | P265GH (1.0425) | – |
ALLOY STEEL FITTING MATERIALS | ||
1.5415 15 Mo 3 | 16Mo3 | A 234 Grade WP1 |
1.7335 13 CrMo 4 4 | 13CrMo4-5 | A 234 Grade WP11, WP12 |
1.7380 10 CrMo 9 10 | 10CrMo9-10 | A 234 Grade WP22 |
1.7362 12 CrMo 19 5 | X11CrMo5 | A 234 Grade WP5 |
– – | – | A 234 Grade WP9 |
1.4903 – | X10CrMoVNb9-1 | A 234 Grade WP91 |
LOW-TEMPERATURE CARBON STEEL FITTING MATERIALS | ||
1.5637 10 Ni 14 | 12Ni14 | A 420 Grade WPL3 |
1.0356 TTSt 35 N | P215NL (1.0451) | – |
1.0356 TTSt 35 V | – | – |
– – | – | A 420 Grade WPL6 |
HIGH YIELD CARBON STEEL FITTING MATERIALS | ||
– – | – | – |
1.0486 StE 285 | – | A860 Grade WPHY42 |
1.0562 StE 355 | P355N | A860 Grade WPHY52 |
1.8902 StE 420 | – | A860 Grade WPHY60 |
1.8905 StE 460 | – | A860 Grade WPHY70 |
HIGH YIELD CARBON STEEL FITTING MATERIALS | ||
1.0457 StE 240.7 | – | – |
1.0484 StE 290.7 | L290NB | A860 Grade WPHY42 |
1.0582 StE 360.7 | L360NB | A860 Grade WPHY52 |
1.8972 StE 415.7 | L415NB | A860 Grade WPHY60 |
– – | – | – |
STAINLESS STEEL FITTING MATERIALS | ||
1.4541 X 6 CrNiTi 18 10 | X6CrNiTi18-10 | A 403 Grade WP321 |
1.4571 X 6 CrNiMoTi 17 12 2 | X6CrNiMoTi17-12-2 | A 403 Grade WP316Ti |
1.4301 X 5 CrNi 18 10 | X5CrNi18-10 | A 403 Grade WP304 |
1.4306 X 2 CrNi 19 11 | X2CrNi19-11 | A 403 Grade WP304L |
1.4307 – | X2CrNi18-9 | A 403 Grade WP304L |
1.4401 X 5 CrNiMo 17 12 2 | X5CrNiMo17-12-2 | A 403 Grade WP316 |
1.4404 X 2 CrNiMo 17 13 2 | X2CrNiMo17-12-2 | A 403 Grade WP316L |
1.4462 X 2 CrNiMoN 22 5 3 | X2CrNiMoN22-5-3 | UNS S 31803 (Duplex) |
1.4529 X 1 NiCrMoCuN 25 20 6 | X1NiCrMoCuN25-20-7 | UNS N 08926 |
1.4539 X 1 NiCrMoCuN 25 20 5 | X1NiCrMoCu25-20-5 | UNS N 08904 (904L) |
1.4547 – | X1CrNiMoCuN20-18-7 | UNS S 31254 |
Nominal Pipe Sizes |
O.D. | 90° Elbows | 45° Elbows | 180° Returns | ||||
---|---|---|---|---|---|---|---|---|
(inches) | LR | SR | LR | LR | ||||
(Millimetre) | (inch) | Center to Face (inch) |
Center to Face (inch) |
Center to Face (inch) |
Radii (inch) |
Center to Center (inch) |
Back to face (inch) |
|
1/2 | 21.3 | 0.840 | 1 1/2 | – | 5/8 | 2 | 1 7/8 | |
3/4 | 26.7 | 1.050 | 1 1/8 | – | 7/16 | 2 1/4 | 1 11/16 | |
1 | 33.4 | 1.315 | 1 1/2 | 1 | 7/8 | 3 | 2 3/16 | |
1 1/4 | 42.2 | 1.660 | 1 7/8 | 1 1/4 | 1 | 3 3/4 | 2 3/4 | |
1 1/2 | 48.3 | 1.900 | 2 1/4 | 1 1/2 | 1 1/8 | 3 | 4 1/2 | 3 1/4 |
2 | 60.3 | 2.375 | 3 | 2 | 1 3/8 | 4 | 6 | 4 3/16 |
2 1/2 | 73.0 | 2.875 | 3 3/4 | 2 1/2 | 1 3/4 | 5 | 7 1/2 | 5 3/16 |
3 | 88.9 | 3.500 | 4 1/2 | 3 | 2 | 6 | 9 | 6 1/4 |
3 1/2 | 101.6 | 4.000 | 5 1/4 | 3 1/2 | 2 1/4 | 7 | 10 1/2 | 7 1/4 |
4 | 114.3 | 4.500 | 6 | 4 | 2 1/2 | 8 | 12 | 8 1/4 |
5 | 141.3 | 5.563 | 7 1/2 | 5 | 3 1/8 | 10 | 15 | 10 5/16 |
6 | 168.3 | 6.625 | 9 | 6 | 3 3/4 | 12 | 18 | 12 5/16 |
8 | 219.1 | 8.625 | 12 | 8 | 5 | 12 | 24 | 16 5/16 |
10 | 273.1 | 10.750 | 15 | 10 | 6 1/4 | 15 | 30 | 20 3/8 |
12 | 323.9 | 12.750 | 18 | 12 | 7 1/2 | 18 | 36 | 24 3/8 |