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Incoloy 825 Flanges

UNS N08825 Blind Flange and Inconel 825 Weld Neck Flange Manufacturer in India.

Since both Incoloy 800 and 825 are similar, their properties or characteristics are similar as well. Yet in some ways, it is the Incoloy 825 Flanges, which are considered better. Firstly, while both materials have resistance to aqueous media, Alloy 825 has a significantly higher level of resistance to corrosion in aqueous environments. This nickel alloy flange is constructed with inclusions of molybdenum, copper, and titanium, each of which gives the material immunity to some degree.

Incoloy 825 Flanges

Incoloy 825 Flanges

Inconel 825 Weld Neck Flange

Inconel 825 Weld Neck Flange

UNS N08825 Blind Flange

UNS N08825 Blind Flange

While copper makes the UNS N08825 Blind Flange immune to brine solution or seawater, which contains sodium chloride, titanium prevents sensitization at the grain boundary, thereby effectively making intergranular corrosion redundant. Because the content of nickel, which is the primary alloyant of the ASTM B564 UNS N08825 Pipe Flange and Forgings is high, the material remains resilient to stress related corrosion cracking. On the whole, the combination of nickel with chromium, molybdenum, and copper to form alloy 825, gives it outstanding corrosion resistance properties.

Unlike most traditionally employed stainless steel alloys, the Class 150 Alloy 825 Socket weld flange strongly resists reducing environments, even those circumstances that contain highly corrosive acids such as sulphuric and phosphoric acids. Like most alloys that benefit from including chromium in its chemistry, the Nickel Alloy 825 Slip-On Flanges are known to resist oxidizing environments as well. The high mechanical strength along with being strengthened by cold working makes the Alloy 825 Weld Neck Flange a valued material particularly for use between 540°C to cryogenic temperatures.


Table of Content



Download Dimensions, Sizes, and Weight Chart of Nickel Alloy 825 Slip-On Flanges.

Weight Table of ASTM B564 UNS N08825 Pipe Flange


Standard Class Diameter of Bolt Circle Dia. Bolt Size No. of Bolts Bolt Hole Diameter
AS4087 PN14 67 95 M12 4 14
ANSI B16.5 ANSI 150 60 89 13 4 16
ANSI 300 67 95 13 4 16
ANSI 600 67 95 13 4 16
ANSI 900 83 121 19 4 22
ANSI 1500 83 121 19 4 22
AS 2129 Flange Table C 67 95 13 4 14
Table D 67 95 13 4 14
Table E 67 95 13 4 14
Table F 67 95 13 4 14
Table H 83 114 16 4 17
Table J 83 114 16 4 17
ISO 7005 (DIN) Flange PN6 55 80 M10 4 11
PN10 65 95 M12 4 14
PN16 65 95 M12 4 14
PN20 60.5 90 M14 4 16
PN25 65 95 M12 4 14
PN40 65 95 M12 4 14

Look at our ASTM B564 UNS N08825 Pipe Flange and Forgings Price List for Europe and Middle East Asia.


UNS N08825 Blind Flange Rate Card


Product Price
Incoloy 825 Forged Forging Anchor Pipe Flanges $9.85/ Piece
Full polished flange 12" 900# Nickel alloy Incoloy 825 Welding neck flange $8,530.92 - $8,756.00/ Piece
Incoloy 825 DN65 cl300 forged SORF flange $75.64 - $115.80/ Piece
ASME B16.5 flange inconel 825 DN65 cl300 Nipo RF flange $7.20 - $6.95/ Kilogram

Specification of Alloy 825 Socket weld flange


Specification ASTM B564/ ASME SB564
Grade 825
Size Ranges From 1/2 inch (i.e. 15 NB) upto 48 inch (i.e. 1200NB)
JIS Standards 5 K, 10K, 16K, 20 K, 30K, 40K, 63 K
Pressure Classes Class 150, Cl 300, 400, Cl. 600, Cl 900, Class 1500 and 2500
Flange Face Type FF, RF, LMF, SMF, RTJ, LJF.
Standards ASME | BS | DIN | ANSI | GOST | EN Flange
UNI/ DIN / EN Standard 6Bar, 10 Bar, 16Bar, 25 Bar, 40Bar

What are the different types of Incoloy 825 Flanges ?


Lap Joint Flange 8" DN450 DN300 Class 1500 Flange Inconel 825
Lap Joint Flange 8" DN450 DN300 Class 1500 Flange Inconel 825

1/2"-3" 150#-1500# UNS N08825 Incoloy 825 SW socket welding flange
1/2"-3" 150#-1500# UNS N08825 Incoloy 825 SW socket welding flange

ASME B16.5 incoloy 825 DN65 cl300 forged SO RF flange
ASME B16.5 incoloy 825 DN65 cl300 forged SO RF flange

ASTM B16.47 Series A Incoloy 825 Raised face WN flange Blind flange
ASTM B16.47 Series A Incoloy 825 Raised face WN flange Blind flange

Incoloy 825 forged forging anchor pipe flanges
Incoloy 825 forged forging anchor pipe flanges

ASTM B564 Incoloy 825 UNS N08825 Forged Flange Ring
ASTM B564 Incoloy 825 UNS N08825 Forged Flange Ring

Forged Inconel 825 Slip-on Flange SO 150lb
Forged Inconel 825 Slip-on Flange SO 150lb

ASTM B564 Incoloy 825 UNS NO8825 threaded flange
ASTM B564 Incoloy 825 UNS NO8825 threaded flange

Buy Inconel 825 Flanges directly from India's Largest Supplier of Nickel Alloy Flanges and save Money, Get Genuine Material with Tests Radiography/ Hardness/ Impact and Heat No.

Inconel 825 Weld Neck Flange Equivalent Material


WERKSTOFF NR. UNS JIS BS GOST AFNOR EN OR
2.4858 N08825 NCF 825 NA 16 ЭП703 NFE30C20DUM NiCr21Mo XH38BT

DIN 2.4858 RTJ flange Chemical Material Composition


Chemical (%)
Fe 22.0 min
Ni 38.0 – 46.0
Si 0.05 max
Cr 19.5-23.5
Cu 1.5-3.0
Mn 1.0 max
C 0.05 max
Mb 2.5-3.5
Ti 0.6-1.2
S 0.03 max
Al 0.02 max

Mechanical Strength of Nickel Alloy 825 Slip-On Flanges


Density Tensile Strength Melting Point Yield Strength (0.2%Offset) Elongation
8.14 g/cm3 Psi – 80,000 , MPa – 550 1400 °C (2550 °F) Psi – 32,000 , MPa – 220 30 %

Online Inventory of Class 150 Alloy 825 Socket weld flange to CL 300 DIN 2.4858 RTJ flange in all international standards conforming to ASME/ ANSI B16.5.

Temperature Rating of Inconel 825 Flanges


Temperature °F 150# 300# 400# 600# 900# 1500# 2500#
-20 to 100 275 720 960 1440 2160 3600 6000
200 235 620 825 1240 1860 3095 5160
300 215 560 745 1120 1680 2795 4660
400 195 515 685 1025 1540 2570 4280
500 170 480 635 955 1435 2390 3980
600 140 450 600 900 1355 2255 3760
650 125 445 590 890 1330 2220 3700
700 110 430 580 870 1305 2170 3620
750 95 425 570 855 1280 2135 3560
800 80 420 565 845 1265 2110 3520
850 65 420 555 835 1255 2090 3480
900 50 415 555 830 1245 2075 3460
950 35 385 515 775 1160 1930 3220
1000 20 350 465 700 1050 1750 2915
1050 20 345 460 685 1030 1720 2865
1100 20 305 405 610 915 1525 2545
1150 20 235 315 475 710 1185 1970
1200 20 185 245 370 555 925 1545
1250 20 145 195 295 440 735 1230
1300 20 115 155 235 350 585 970
1350 20 95 130 190 290 480 800
1400 20 75 100 150 225 380 630
1450 20 60 80 115 175 290 485
1500 20 40 55 85 125 205 345

Nickel Alloy 825 Flanges Dimensional Chart


NPS (inches) Dia. of
Flange (inches)		 No.
of Bolts		 Bolts Diameter (inches) Dia. of
Bolt Holes
(inches)		 Bolt
Circle (inches)
1/4 3-3/8 4 1/2 0.62 2-1/4
1/2 3-3/4 4 1/2 0.62 2-5/8
3/4 4-5/8 4 5/8 0.75 3-1/4
1 4-7/8 4 5/8 0.75 3-1/2
1-1/4 5-1/4 4 5/8 0.75 3-7/8
1-1/2 6-1/8 4 3/4 0.88 4-1/2
2 6-1/2 8 5/8 0.75 5
2-1/2 7-1/2 8 3/4 0.88 5-7/8
3 8-1/4 8 3/4 0.88 6-5/8
3-1/2 9 8 3/4 0.88 7-1/4
4 10 8 3/4 0.88 7-7/8
5 11 8 3/4 0.88 9-1/4
6 12-1/2 12 3/4 0.88 10-5/8
8 15 12 7/8 1 13
10 17-1/2 16 1 1.12 15-1/4
12 20-1/2 16 1-1/8 1.25 17-3/4
14 23 20 1-1/8 1.25 20-1/4
16 25-1/2 20 1-1/4 1.38 22-1/2
18 28 24 1-1/4 1.38 24-3/4
20 30-1/2 24 1-1/4 1.38 27
24 36 24 1-1/2 1.62 32