There are several ways of attaching the flanges to the pipe.The most common methods would include:
The alloy 800 flanges are extensively used in industries and applications that require high temperature and corrosion resistance.This will include industries like chemical processing, power generation, oil & gas, aerospace, pharmaceutical and petrochemical.Alloy 800 blind flanges have other mechanical properties like stability and high strength which makes them suitable for various challenging environments.
Alloy 800 blind flange
UNS N08800 weld neck flange
DIN 1.4876 slip on flange
Inconel 800 pipe flanges are available in various pressure classes.This is a measure of the max pressure that a given flange scan withstand.The pressure class of this flanges follows typical industry standards.The most widely used pressure classes for Incoloy 800 weld neck flanges range between class 150 to 2500.
Sizes | Pressure class | Specification |
---|---|---|
1/2" to 48" | Class 150 to 2500 LBS | ASTM B564 | ASME SB564 |
Pressure calculation | JIS standards |
Manufacturing process |
6 to 40 bar | 5 to 63 K | RF, FF, SMF, LMF, LJF, RTJ |
Inconel alloy 800 socket weld flange
WNR 1.4876 forged flange
Inconel 800 threaded flange
STANDARD | UNS | OR | WERKSTOFF NR. | JIS | BS | GOST | AFNOR | EN |
---|---|---|---|---|---|---|---|---|
Incoloy 800 | N08800 | XH32T | 1.4876 | NCF 800 | NA 15 | ЭИ670 | Z8NC32-21 | X10NiCrAlTi32-20 |
Element | Elongation | Density | Yield Strength (0.2%Offset) | Melting Point | Tensile Strength |
---|---|---|---|---|---|
800 | 30 % | 7.94 g/cm3 | Psi – 30,000 , MPa – 205 | 1385 °C (2525 °F) | Psi – 75,000 , MPa – 520 |
Grade | C | Ti | S | Fe | Mn | Cr | Si | Ni | Cu | Al |
---|---|---|---|---|---|---|---|---|---|---|
800 | 0.10 max | 0.15 – 0.60 | 0.015 max | 39.50 min | 1.50 max | 19.00 – 23.00 | 1.00 max | 30.00 – 35.00 | 0.75 max | 0.15 – 0.60 |
Electrical Resistivity | Density | Specific Heat | Melting Range | ||
---|---|---|---|---|---|
µΩ·m | g/cm3 | Btu/lb.°F | J/kg.k | °F | °C |
989 | 7.94 | 0.110 | 460 | 2475-2525 | 1357-1385 |
NPS (Nominal Pipe Size) | BLRF (Blind) | NPT (Threaded) | SORF (Slip On) | Loose (Lap Joint) | SWRF (Socket Weld) | WRNR (Weld Neck) |
---|---|---|---|---|---|---|
¾ | 2 | 2 | 2 | 2 | 2 | 2 |
½ | 2 | 1 | 1 | 1 | 2 | 2 |
1 | 2 | 2 | 2 | 2 | 2 | 3 |
1½ | 4 | 3 | 3 | 3 | 3 | 4 |
1¼ | 3 | 3 | 3 | 3 | 3 | 3 |
2 | 5 | 5 | 5 | 5 | 5 | 6 |
3 | 9 | 9 | 9 | 9 | 9 | 11.5 |
2½ | 7 | 8 | 8 | 8 | 8 | 10 |
24 | 430 | 220 | 220 | 275 | 220 | 268 |
3½ | 13 | 12 | 11 | 11 | 11 | 12 |
5 | 20 | 15 | 15 | 15 | 15 | 21 |
4 | 17 | 13 | 13 | 13 | 13 | 16.5 |
6 | 27 | 19 | 19 | 19 | 19 | 26 |
10 | 70 | 43 | 43 | 43 | 43 | 54 |
8 | 47 | 30 | 30 | 30 | 30 | 42 |
12 | 123 | 64 | 64 | 64 | 64 | 88 |
16 | 180 | 98 | 106 | 140 | 98 | 140 |
14 | 140 | 90 | 90 | 105 | 90 | 114 |
20 | 285 | 165 | 165 | 195 | 165 | 197 |
18 | 220 | 130 | 130 | 160 | 130 | 165 |
22 | 355 | 185 | 185 | 245 | 185 | 225 |
Incoloy Flanges | Temperature and Pressure Ratings | ||||||
---|---|---|---|---|---|---|---|
Temperature °F | Class 600 | Class 300 | Class 150 | Class 400 | Class 1500 | Class 900 | Class 2500 |
-20 to 100 | 1440 | 720 | 275 | 960 | 3600 | 2160 | 6000 |
300 | 1080 | 540 | 205 | 720 | 2700 | 1620 | 4500 |
200 | 1200 | 600 | 230 | 800 | 3000 | 1800 | 5000 |
400 | 995 | 495 | 190 | 660 | 2485 | 1490 | 4140 |
600 | 875 | 435 | 140 | 580 | 2185 | 1310 | 3640 |
500 | 930 | 465 | 170 | 620 | 2330 | 1395 | 3880 |
650 | 860 | 430 | 125 | 575 | 2150 | 1290 | 3580 |
750 | 830 | 415 | 95 | 555 | 2075 | 1245 | 3460 |
1500 | 55 | 25 | 10 | 35 | 135 | 80 | 230 |
700 | 850 | 425 | 110 | 565 | 2125 | 1275 | 3540 |
800 | 805 | 405 | 80 | 540 | 2015 | 1210 | 3360 |
900 | 780 | 390 | 50 | 520 | 1945 | 1165 | 3240 |
850 | 790 | 395 | 65 | 530 | 1980 | 1190 | 3300 |
950 | 765 | 380 | 35 | 510 | 1910 | 1145 | 3180 |
1050 | 615 | 310 | 20 | 410 | 1545 | 925 | 2570 |
1100 | 515 | 255 | 20 | 345 | 1285 | 770 | 2145 |
1000 | 640 | 320 | 20 | 430 | 1605 | 965 | 2675 |
1150 | 400 | 200 | 20 | 265 | 995 | 595 | 1655 |
1250 | 225 | 115 | 20 | 150 | 565 | 340 | 945 |
1200 | 310 | 155 | 20 | 205 | 770 | 465 | 1285 |
1300 | 170 | 85 | 20 | 115 | 430 | 255 | 715 |
1400 | 95 | 50 | 20 | 65 | 240 | 145 | 400 |
1350 | 125 | 60 | 20 | 80 | 310 | 185 | 515 |
1450 | 70 | 35 | 15 | 45 | 170 | 105 | 285 |
Gasket ID |
NPS | Gasket OD | ||||
---|---|---|---|---|---|---|
600 LB | 300 LB | 150 LB | 400 LB | 900 LB | ||
1.06 | 3/4 | 2.625 | 2.625 | 2.25 | 2.625 | 2.75 |
0.84 | 1/2 | 2.125 | 2.125 | 1.875 | 2.125 | 2.50 |
1.31 | 1 | 2.875 | 2.875 | 2.625 | 2.875 | 3.125 |
1.91 | 1 1/2 | 3.75 | 3.75 | 3.375 | 3.75 | 3.875 |
1.66 | 1 1/4 | 3.25 | 3.25 | 3 | 3.25 | 3.50 |
2.88 | 2 1/2 | 5.125 | 5.125 | 4.875 | 5.125 | 6.50 |
2.38 | 2 | 4.375 | 4.375 | 4.125 | 4.375 | 5.625 |
3.50 | 3 | 5.875 | 5.875 | 5.375 | 5.875 | 6.625 |
5.56 | 5 | 9.50 | 8.50 | 7.75 | 8.375 | 9.75 |
4.50 | 4 | 7.625 | 7.125 | 6.875 | 7.00 | 8.125 |
6.62 | 6 | 10.50 | 9.875 | 8.75 | 9.75 | 11.375 |
10.75 | 10 | 15.75 | 14.25 | 13.375 | 14.125 | 17.125 |
8.62 | 8 | 12.625 | 12.125 | 11 | 12.00 | 14.125 |
12.75 | 12 | 18.00 | 16.625 | 16.125 | 16.50 | 19.625 |
PN ASME SB564 DIN 1.4876 lap joint flanges conforms to European standards whereas class flanges are to American standards.The other difference between PN and class Nickel alloy 800 slip on flanges is, PN flanges use metric units like bar or Pascal.But class flanges use imperial units like per square inch (psi).
The size of a UNS N08800 socket weld flanges is determined by the pipe size to which it will be connected.Flanges are manufactured to ensure proper fit and compatibility.
The smallest size for Inconel alloy 800 reducing flanges can vary with the manufacturer and specific standards.You can contact your manufacturer Regent Steel & Engineering Co to know about the smallest size you can get as per your requirements.
Over time, industry standards and manufacturing capabilities can evolve.This leads to potential changes in the available size range for Werkstoff 1.4876 threaded flanges.Advances in manufacturing techniques can help in the production process.You can consult Regent Steel & Engineering Co to obtain accurate and up-to-date information regarding the flanges size range.
There are several reasons why Inconel 800 forged flange might leak.The common reasons would include improper installation and gasket failure.Misaligned flanges can also cause uneven pressure distribution.Another primary reason for leakage is if the flange material is exposed to a highly corrosive environment, its joints can weaken.
No matter the reason, it is crucial to prevent leakage in the Nickel 800 plate flange.Some common measures like the following can be taken to avoid the leakage:
Rb 84 nom
2100°F (1149°C) minimum
38.9 microhm-in.