Check ASTM B366 UNS N08825 End Cap / Stub End / Elbow / Reducer Mechanical Properties And Chemical Composition.
How do you fit an Incoloy 825 butt weld Fittings with a pipe?
Buttweld fittings in the Incoloy 825 range are amongst the strongest and versatile types of fittings. These fittings can be easily connected to a pipe as they possess beveled ends as per directives set by ASME B16.25. These ends allow the modules to create a full penetration weld without the need for any extra penetration or preparation. The fittings are welded following butt-weld procedures where they are placed over the components and welded in place. The welded connections in this range offer a robust and high-strength connection. These fittings are available in bigger and stronger sizes compared to other grades of fittings.
Can you weld Alloy 825 threaded fittings?
Alloy 825 threaded fittings are components designed with a concentration of chromium, nickel, and iron coupled with additions of molybdenum, titanium, and copper. Threaded fittings in this range have threads, which correspond to that of the piping module. This enables them to be easily affixed to the thread on the subsequent piping component. The connection securely seals the components; however, in certain applications, these fittings can be easily welded in place. But it is not advised to weld the component as the already sealed threaded fittings may suffer a thermal expansion due to weld heating causing a crack or dent in the line.
What is the difference between ASTM B366 UNS N08825 SR 45 elbow and LR 45 elbow?
Elbows are versatile pipe fittings that influence the characteristics of the flow by redirecting them from different angles. These elbows are designed in different directions as short or long radius elbows. Both can be differentiated based on certain features.
- An LR elbow is an outer diameter of a tube whose radius of curvature is equal to 1.5 times its diameter. An SR elbow is a component whose radius of curvature is equal to the outer diameter of the tube.
- A 45 SR elbow will give a pipe a sharper turn-in comparison to an LR 45 elbow.
- LR elbows create lower pressure drop compared to SR elbows.
- SR elbows are cost-effective and preferred in applications where there is compact space available over LR elbows.

Incoloy 825 Pipe Fittings

ASTM B564 Alloy 825 Elbow

UNS N08825 End Cap

ASME B16.9 Incoloy 820 Fittings Equivalent
STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN | OR |
Incoloy 825 Pipe Fittings | 2.4858 | N08825 | NCF 825 | NA 16 | ЭП703 | NFE30C20DUM | NiCr21Mo | XH38BT |
B366 Incoloy 825 Chemical Composition
Grade | C | Mn | Si | S | Cu | Fe | Ni | Cr | Al | Ti |
825 | 0.05 max | 1.00 max | 0.05 max | 0.03 max | 1.50 – 3.00 | 22.00 min | 38.00 – 46.00 | 19.50 – 23.50 | 0.02 max | 0.06 – 1.20 |
Incoloy 825 Mechanical Strength
Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
825 | 8.14 g/cm3 | 1400 °C (2550 °F) | Psi – 80,000 , MPa – 550 | Psi – 32,000 , MPa – 220 | 30 % |
Specification Of Incoloy 825 Pipe Fittings
Specification : | Incoloy 825 Fittings (Buttweld, Forged, Socket weld, Threaded) |
---|---|
Thickness | SCH10, SCH 80, SCH 100, SCH20, SCH30, STD SCH40, SCH 160, XXS, SCH60, XS, SCH 120, SCH 140, available with NACE MR 01-75 |
Specialized manufacturer of | Tees, Crosses, Reducers, 90º Elbows, Stub End, Pipe Bend, 45º Elbows, Pipe Cap |
Type | DN15-DN1200 |
Connection | Welding |
Origin & Mills | Indian, Korean, Russian, Japanese, European |
Size Range | ½" NB to 24" NB in Sch 10s, 40s, 80s, 160s, XXS. (DN6~DN100) |
size | Seamless ButtWeld Fittings: 1/2 - 10 inch Welded Butt Weld Fittings: 1/2" - 48" |
Manufacturing process | Press, Forge, Push, Cast, etc. |
Bending Radius | R=2D, 3D, 5D, 6D, 8D, 1D, 10D or Custom |
Dimensions | ASME B16.28, MSS-SP-43, ASME/ANSI B16.9, BS4504, BS10, BS4504, BS1560, |
Alloy 825 Seamless Tee Manufacturer And Supplier In Mumbai, India.
Incoloy 825 Buttweld Pipe Fittings Weight Chart
Normal Pipe Size (NPS) | LBS | Kilogram (KG) |
1/2 | 0.25 | 0.11 |
3/4 | 0.25 | 0.11 |
1 | 0.5 | 0.23 |
1¼ | 0.9 | 0.41 |
1½ | 1.15 | 0.52 |
2 | 2.2 | 1 |
2½ | 4 | 1.81 |
3 | 6.5 | 2.95 |
3½ | 8.35 | 3.79 |
4 | 13.5 | 6.12 |
5 | 22 | 9.98 |
6 | 35 | 15.88 |
8 | 71 | 32.21 |
10 | 107 | 48.53 |
12 | 160 | 72.57 |
14 | 205 | 92.99 |
16 | 276 | 125.19 |
18 | 340 | 154.22 |
20 | 420 | 190.51 |
22 | 520 | 235.87 |
24 | 600 | 272.16 |
26 | 729 | 330.67 |
30 | 975 | 442.25 |
36 | 1412 | 640.47 |
Buy ASTM B366 WPNICMC Fittings Available In Cross / Plug / Nipple At Low Price.
Alloy 825 Elbow Dimension In MM

Nominal Pipe Size |
OD | Incoloy 825 90° Elbows | Incoloy 825 45° Elbows | Incoloy 825 180° Returns | ||||
---|---|---|---|---|---|---|---|---|
(inch.)
|
LR
|
SR
|
LR
|
LR
|
||||
(millimeter)
|
(inch.)
|
Center to Face
(inch.) |
Center to Face
(inch.) |
Center to Face
(inch.) |
Radius
(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
|
Types Of Incoloy 825 Fittings

4 X 2 Inch, SCH 80, ANSI B16.9 Incoloy 825 Eccentric Reducer

6 X 3 Inch, SCH 80, Incoloy 825 Concentric Reducer

8 Inch X 6 Inch, ASME B16.9, SCH 80S, Incoloy 825 Concentric Reducer

36 Inch X 28 Inch, SCH 20, UNS N08825 Welded Eccentric Reducer

8 Inch, SCH 10S, ASME B16.9, Alloy 825 Stub Ends

4 Inch, SCH 10S, MSS SP-43, Alloy 825 Stub End

2 Inch, ANSI B16.9, Alloy 825 Stainless Steel Stub End

10 Inch, SMLS, SCH 40S, UNS N08825 Stub End

1 Inch, SCH 40, Incoloy 825 90D LR Elbow

3 Inch, SCH 80, Incoloy 825 Short Radius 180D Elbow

12 Inch, SCH.STD, ASME B16.9, Incoloy 825 90D Elbow

6 Inch, BW, ASTM A815 UNS N08825 45D Long Radius Elbow
UNS N08825 Stub End Thickness
Incoloy 825 90° Elbows | Incoloy 825 180° Returns | Incoloy 825 45° Elbows | Incoloy 825 Tees | Incoloy 825 Lap Joint Stub Ends | Incoloy 825 180° Return Bends | ||||||||||
Normal Size Of Pipe | 90 Deg Elbows | 45 Deg Elbows | 180 Deg Return Bends | Tee | Lap Joint Stub Ends | Caps | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
LR | SR | 3R | LR | 3R | LR | SR | C | M | F | G | R | E | |||
A | A | A | B | B | O | K | O | K | |||||||
½ | 1.50 | - | - | 0.62 | - | 3.00 | 1.88 | - | - | 1.00 | 1.00 | 3.00 | 1.38 | 0.12 | 1.00 |
¾ | 1.50 | - | - | 0.75 | - | 3.00 | 2.00 | - | - | 1.12 | 1.12 | 3.00 | 1.69 | 0.12 | 1.00 |
1 | 1.50 | 1.00 | - | 0.88 | - | 3.00 | 2.19 | 2.00 | 1.62 | 1.50 | 1.50 | 4.00 | 2.00 | 0.12 | 1.50 |
1¼ | 1.88 | 1.25 | - | 1.00 | - | 3.75 | 2.75 | 2.50 | 2.06 | 1.88 | 1.88 | 4.00 | 2.50 | 0.19 | 1.50 |
1½ | 2.25 | 1.50 | - | 1.12 | - | 4.50 | 3.25 | 3.00 | 2.44 | 2.25 | 2.25 | 4.00 | 2.88 | 0.25 | 1.50 |
2 | 3.00 | 2.00 | 6.00 | 1.38 | 2.50 | 6.00 | 4.19 | 4.00 | 3.19 | 2.50 | 2.50 | 6.00 | 3.62 | 0.31 | 1.50 |
2½ | 3.75 | 2.50 | 7.50 | 1.75 | 3.12 | 7.50 | 5.19 | 5.00 | 3.94 | 3.00 | 3.00 | 6.00 | 4.12 | 0.31 | 1.50 |
3 | 4.50 | 3.00 | 9.00 | 2.00 | 3.75 | 9.00 | 6.25 | 6.00 | 4.75 | 3.38 | 3.38 | 6.00 | 5.00 | 0.38 | 2.00 |
3½ | 5.25 | 3.50 | 10.50 | 2.25 | - | 10.50 | 7.25 | 7.00 | 5.50 | 3.75 | 3.75 | 6.00 | 5.50 | 0.38 | 2.50 |
4 | 6.00 | 4.00 | 12.00 | 2.50 | 5.00 | 12.00 | 8.25 | 8.00 | 6.25 | 4.12 | 4.12 | 6.00 | 6.19 | 0.44 | 2.50 |
5 | 7.50 | 5.00 | 15.00 | 3.12 | - | 15.00 | 10.31 | 10.00 | 7.75 | 4.88 | 4.88 | 8.00 | 7.31 | 0.44 | 3.00 |
6 | 9.00 | 6.00 | 18.00 | 3.75 | 7.44 | 18.00 | 12.31 | 12.00 | 9.31 | 5.62 | 5.62 | 8.00 | 8.50 | 0.50 | 3.50 |
8 | 12.00 | 8.00 | 24.00 | 5.00 | 9.94 | 24.00 | 16.31 | 16.00 | 12.31 | 7.00 | 7.00 | 8.00 | 10.62 | 0.50 | 4.00 |
10 | 15.00 | 10.00 | 30.00 | 6.25 | 12.44 | 30.00 | 20.38 | 20.00 | 15.38 | 8.50 | 8.50 | 10.00 | 12.75 | 0.50 | 5.00 |
12 | 18.00 | 12.00 | 36.00 | 7.50 | 14.88 | 36.00 | 24.38 | 24.00 | 18.38 | 10.00 | 10.00 | 10.00 | 15.00 | 0.50 | 6.00 |
14 | 21.00 | 14.00 | 42.00 | 8.75 | 17.38 | 42.00 | 28.00 | 28.00 | 21.00 | 11.00 | 11.00 | 12.00 | 16.25 | 0.50 | 6.50 |
16 | 24.00 | 16.00 | 48.00 | 10.00 | 19.88 | 48.00 | 32.00 | 32.00 | 24.00 | 12.00 | 12.00 | 12.00 | 18.50 | 0.50 | 7.00 |
18 | 27.00 | 18.00 | 54.00 | 11.25 | 22.38 | 54.00 | 36.00 | 36.00 | 27.00 | 13.50 | 13.50 | 12.00 | 21.00 | 0.5 | 8.00 |
20 | 30.00 | 20.00 | 60.00 | 12.50 | 24.88 | 60.00 | 40.00 | 40.00 | 30.00 | 15.00 | 15.00 | 12.00 | 23.00 | 0.50 | 9.00 |
22 | 33.00 | 22.00 | 66.00 | 13.50 | 27.31 | 66.00 | 44.00 | 44.00 | 33.00 | 16.50 | 16.50 | 12.00 | 25.25 | 0.50 | 10.00 |
24 | 36.00 | 24.00 | 72.00 | 15.00 | 29.81 | 72.00 | 48.00 | 48.00 | 36.00 | 17.00 | 17.00 | 12.00 | 27.25 | 0.50 | 10.50 |
26 | 39.00 | - | 78.00 | 16.00 | 32.31 | - | - | - | - | 19.50 | 19.50 | - | - | - | 10.50 |
28 | 42.00 | - | 84.00 | 17.25 | 34.75 | - | - | - | - | 20.50 | 20.50 | - | - | - | 10.50 |
30 | 45.00 | - | 90.00 | 18.50 | 37.25 | - | - | - | - | 22.00 | 22.00 | - | - | - | 10.50 |
32 | 48.00 | - | - | 19.75 | - | - | - | - | - | 23.50 | 23.50 | - | - | - | 10.50 |
34 | 51.00 | - | 102.00 | 21.00 | 42.25 | - | - | - | - | 25.00 | 25.00 | - | - | - | 10.50 |
36 | 54.00 | - | 108.00 | 22.25 | 44.69 | - | - | - | - | 26.50 | 26.50 | - | - | - | 10.50 |
38 | 57.00 | - | 114.00 | 23.62 | 47.25 | - | - | - | - | 28.00 | 28.00 | - | - | - | 12.00 |
40 | 60.00 | - | 120.00 | 24.88 | 49.75 | - | - | - | - | 29.50 | 29.50 | - | - | - | 12.00 |
42 | 63.00 | - | 126.00 | 26.00 | 52.19 | - | - | - | - | 30.00 | 28.00 | - | - | - | 12.00 |
44 | 66.00 | - | 132.00 | 27.38 | 54.69 | - | - | - | - | 32.00 | 30.00 | - | - | - | 13.50 |
46 | 69.00 | - | 138.00 | 28.62 | 57.19 | - | - | - | - | 33.50 | 31.50 | - | - | - | 13.50 |
48 | 72.00 | - | 144.00 | 29.88 | 59.69 | - | - | - | - | 35.00 | 33.00 | - | - | - | 13.50 |
ASTM B366 WPNICMC Fittings Pressure Rating
Normal Size Of Pipe (inches) |
Pipe Sch | OD
(inch) |
Wall Thick. (inch) |
Temperature (oF) | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
100 | 200 | 300 | 400 | 500 | 600 | 650 | 700 | 750 | ||||
Allowable Stress (psi) | ||||||||||||
16700 | 16700 | 16700 | 15500 | 14400 | 13500 | 13200 | 12900 | 12600 | ||||
1" | 40 | 1.315 | 0.133 | 2205 | 2205 | 2205 | 2047 | 1902 | 1783 | 1743 | 1703 | 1664 |
80 | 1.315 | 0.179 | 3061 | 3061 | 3061 | 2841 | 2640 | 2475 | 2420 | 2365 | 2310 | |
160 | 1.315 | 0.250 | 4493 | 4493 | 4493 | 4170 | 3874 | 3632 | 3552 | 3471 | 3390 | |
1 1/2" | 40 | 1.900 | 0.145 | 1629 | 1629 | 1629 | 1512 | 1404 | 1317 | 1287 | 1258 | 1229 |
80 | 1.900 | 0.200 | 2303 | 2303 | 2303 | 2138 | 1986 | 1862 | 1821 | 1779 | 1738 | |
160 | 1.900 | 0.281 | 3362 | 3362 | 3362 | 3120 | 2899 | 2717 | 2657 | 2597 | 2536 | |
2" | 40 | 2.375 | 0.154 | 1371 | 1371 | 1371 | 1272 | 1182 | 1108 | 1083 | 1059 | 1034 |
80 | 2.375 | 0.218 | 1985 | 1985 | 1985 | 1843 | 1712 | 1605 | 1569 | 1534 | 1498 | |
160 | 2.375 | 0.344 | 3283 | 3283 | 3283 | 3047 | 2831 | 2654 | 2595 | 2536 | 2477 | |
3" | 40 | 3.500 | 0.216 | 1301 | 1301 | 1301 | 1208 | 1122 | 1052 | 1028 | 1005 | 982 |
80 | 3.500 | 0.300 | 1844 | 1844 | 1844 | 1712 | 1590 | 1491 | 1458 | 1425 | 1391 | |
160 | 3.500 | 0.438 | 2787 | 2787 | 2787 | 2587 | 2403 | 2253 | 2203 | 2153 | 2103 | |
4" | 40 | 4.500 | 0.237 | 1102 | 1102 | 1102 | 1023 | 950 | 891 | 871 | 851 | 831 |
80 | 4.500 | 0.337 | 1596 | 1596 | 1596 | 1482 | 1377 | 1291 | 1262 | 1233 | 1204 | |
160 | 4.500 | 0.531 | 2611 | 2611 | 2611 | 2424 | 2552 | 2111 | 2064 | 2017 | 1970 | |
5" | 40 | 5.563 | 0.258 | 965 | 965 | 965 | 896 | 832 | 780 | 763 | 746 | 728 |
80 | 5.563 | 0.375 | 1428 | 1428 | 1428 | 1325 | 1231 | 1154 | 1129 | 1103 | 1077 | |
160 | 5.563 | 0.625 | 2474 | 2474 | 2474 | 2296 | 2133 | 2000 | 1955 | 1911 | 1866 | |
6" | 40 | 6.625 | 0.280 | 877 | 877 | 877 | 814 | 756 | 709 | 693 | 677 | 661 |
80 | 6.625 | 0.432 | 1379 | 1379 | 1379 | 1280 | 1189 | 1115 | 1090 | 1065 | 1040 | |
160 | 6.625 | 0.719 | 2382 | 2382 | 2382 | 2211 | 2054 | 1925 | 1883 | 1840 | 1797 | |
8" | 40 | 8.625 | 0.322 | 771 | 771 | 771 | 716 | 665 | 623 | 610 | 596 | 582 |
80 | 8.625 | 0.500 | 1218 | 1218 | 1218 | 1131 | 1050 | 985 | 963 | 941 | 919 | |
160 | 8.625 | 0.906 | 2298 | 2298 | 2298 | 2133 | 1982 | 1858 | 1817 | 1775 | 1734 | |
10" | 40 | 10.750 | 0.365 | 699 | 699 | 699 | 649 | 603 | 565 | 553 | 540 | 528 |
80 | 10.750 | 0.594 | 1159 | 1159 | 1159 | 1075 | 999 | 937 | 916 | 895 | 874 | |
160 | 10.750 | 1.125 | 2289 | 2289 | 2289 | 2124 | 1974 | 1850 | 1809 | 1768 | 1727 |