SMO 254 Flanges

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Gost 12815 ASTM A182 UNS S31254 Slip On Flange & 6Mo Blind Flange manufacturer in India

The SMO 254 Flanges are used in a wide range of industrial and commercial applications. The high quality flanges can be used in desulfurization scrubbers of flue gas, and the components used in the production of petroleum. They are also widely used in food processing equipment. The SMO 254 Flanges are sometimes considered to be a cost-effective substitute of expensive nickel and titanium flanges. The 254 SMO Flanges are known for its compatibility with the common austenitic stainless steel and are used in the halide environments like seawater and different types of acids such as contaminated sulfuric acid or hydrochloric acid.
The SMO 254 Flanges are available in different shapes and sizes. Each of them serve various purposes and can be customized on order according to the specific requirements. These flanges have copper in its chemical composition, which helps it to resist reducing acids and chlorides.
The 254 SMO material is also known for providing good resistance to pitting and crevice corrosion. They are also capable of resisting general corrosion along with stress corrosion cracking. It comes with a higher strength when compared to the conventional austenitic stainless steel. The material also possesses good welding capabilities.
The SMO 254 Flanges are well-known for providing leakage-free connections. They are suitable for a wide range of applications like power and instrumentation. The flanges are available in international quality standards, various sizes and dimensions. The 254 SMO Flanges are widely used in various chemical plants as well as process control units. One can also find them in power and petroleum plants. They are also in demand for applications that involve the capacity to carry high pressure.
The 254 SMO Flanges gives a great performance in the presence of chloride and bromide ions. They might show some effects of local corrosion because of crevice, pitting, and stress. It comes with a low carbon element and hence they bear lesser risk of getting that carbide precipitation when the heat is applied during the welding procedure.

SMO 254 Flanges

SMO 254 Flanges

ADNOC approved JIS B2220 254 SMO Flanges manufacturers in India offers widest range of UNS S31254 Weld Neck Flange and 6Mo Threaded Flange in Mumbai

Alloy 254 Slip on Flange Vs UNS S31254 Weld neck Flange

The Alloy 254 Slip on Flange is a cost-effective piping equipment which is used across several industries. One of the best things about these flanges is that they can be easily slid inside the pipe and then joined to the piping system with the help of a fillet weld. They are available in different pressure classes and sizes. They are easy to maintain and have a very long service life.

The UNS S31254 Weld neck Flange has similar characteristics like the alloy 254 slip on flange as they both have the same chemical composition. However, due to the difference in their structure, they have a varied application. They are used for a more critical application, where pressure, temperature, or fluctuations in them are higher. These flanges are also used in the pipelines carrying hazardous and volatile fluids or gases.

Table of Content


Size Range 1/2″ to 48″
Chart of Pressure Rating 300 LBS, 2500 LBS, 1500 LBS, 900 LBS, 150 LBS, 600 LBS
DIN Pressure Calculation 25Bar 40Bar 16Bar 6Bar 10Bar / PN64 PN10 PN25 PN16 PN6 PN40
JIS 40 K, 16 K, 5K, 10 K, 30 K, 20 K, 63 K
Manufacturer of GOST, JIS, ANSI, DIN, UNI, BS, AWWA, AS2129, SABS, NFE, EN etc.
Test Magnetic particle detector, X-ray detector, Ultrasonic flaw detector, Direct-reading Spectrograph, Hydrostatic testing machine
Equipment Pushing Machine, Press machine, Sand-blasting machine, Bending machine, electric bevelling machine etc
UNI / EN 16Bar 6Bar 40Bar 10Bar 25Bar
Manufacturer of Connect / Flange Face Type LJF, RF, RTJ, FF, Small Tongue, Large Tongue & Groove
Production technique Used By Manufacturer Heat treated, Forged and machined
Origin Japan / West Europe / Indian / USA / Korean
Common Types By Manufacturer Threaded / Screwed / Forged / Plate
Coating Zinc Plated, Anti-rust Paint, Yellow Transparent, Oil Black Paint, Cold and Hot Dip Galvanized
Standards Provided By Manufacturer ISO70051, MSS S44, BS1560-3.1, API7S-43, B16.48, ANSI/ASME B16.5, B16.47 Series A & B, BS4504, JISB2220, ASME/ANSI B16.5/16.36/16.47A/16.47B, API605, BS 10, EN-1092, DIN, API7S-15, EN1092

Are you looking for 254 SMO Flanges importer, stockists, distributor, stockholders, dealers, supplier, wholesalers, exporters and Manufacturer in Mumbai.

Temperature °F Class 150 Class 600 Class 1500 Class 400 Class 900 Class 300 Class 2500
-20 to 100 275 1440 3600 960 2160 720 6000
300 205 1080 2700 720 1620 540 4500
200 230 1200 3000 800 1800 600 5000
400 190 995 2485 660 1490 495 4140
600 140 875 2185 580 1310 435 3640
650 125 860 2150 575 1290 430 3580
500 170 930 2330 620 1395 465 3880
700 110 850 2125 565 1275 425 3540
750 95 830 2075 555 1245 415 3460
850 65 790 1980 530 1190 395 3300
800 80 805 2015 540 1210 405 3360
900 50 780 1945 520 1165 390 3240
950 35 765 1910 510 1145 380 3180
1000 20 640 1605 430 965 320 2675
1100 20 515 1285 345 770 255 2145
1150 20 400 995 265 595 200 1655
1050 20 615 1545 410 925 310 2570
1200 20 310 770 205 465 155 1285
1250 20 225 565 150 340 115 945
1300 20 170 430 115 255 85 715
1400 20 95 240 65 145 50 400
1350 20 125 310 80 185 60 515
1450 15 70 170 45 105 35 285
1500 10 55 135 35 80 25 230
NPS (Nominal Pipe Size) Loose (Lap Joint) NPT (Threaded) SORF (Slip On) BLRF (Blind) SWRF (Socket Weld) WRNR (Weld Neck)
½ 1 1 1 2 2 2
1 2 2 2 2 2 3
1¼ 3 3 3 3 3 3
¾ 2 2 2 2 2 2
1½ 3 3 3 4 3 4
2½ 8 8 8 7 8 10
2 5 5 5 5 5 6
3 9 9 9 9 9 11.5
4 13 13 13 17 13 16.5
3½ 11 12 11 13 11 12
5 15 15 15 20 15 21
8 30 30 30 47 30 42
6 19 19 19 27 19 26
10 43 43 43 70 43 54
24 275 220 220 430 220 268
14 105 90 90 140 90 114
12 64 64 64 123 64 88
16 140 98 106 180 98 140
20 195 165 165 285 165 197
18 160 130 130 220 130 165
22 245 185 185 355 185 225

Supplier of BS4504 PN16 254 SMO Blind Flange and 6Mo Orifice Flange offers Hydrotest, Pneumatic, NDT Test to confirm the integrity of weldments

SMO 254 Flange Price Per Piece in India 254 SMO Flange Price in INR SMO 254 Flange Price in UAE Dirham A182 Gr F44 SMO 254 Flange Price in USD
ANSI B16.5 A182 F44 SMO 254 Flange 2" Class 600 Per Unit 2460.19 UAE Dirham 119.67 $32.58
Class 900 254 SMO blind flange 4" Per Kg 604.19 UAE Dirham 29.38 $8
5inch A182 F44 254 SMO FLANGE B16.5 Per Kg 868.53 UAE Dirham 42.24 $11.50

Compare our price with other SMO 254 Blind Flange Manufacturer in India. Why don't you directly contact a SMO 254 Flange manufacturer in India? We have extensive range of A182 Grade F44 Flange in India at Discounted Price.

SMO 254 Slip on Flange Dimensions

Size in Inch Size in mm No of Bolts Outer Dia. Hub OD ISO Stud Size Flange Length RF Height Flange Thick. RF Dia. PCD Hole Size Socket Bore Weight in kg
A C D F B E G H
1/2 15 4 90 30 M14 14 2 9.6 34.9 60.3 5/8 22.2 0.8
1 25 4 110 49 M14 16 2 12.7 50.8 79.4 5/8 34.5 0.9
3/4 20 4 100 38 M14 14 2 11.2 42.9 69.9 5/8 27.7 0.9
1 1/4 32 4 115 59 M14 19 2 14.3 63.5 88.9 5/8 43.2 1.4
2 50 4 150 78 M16 24 2 17.5 92.1 120.7 3/4 61.9 2.3
1 1/2 40 4 125 65 M14 21 2 15.9 73 98.4 5/8 49.5 1.4
2 1/2 65 4 180 90 M16 27 2 20.7 104.8 139.7 3/4 74.6 3.2
3 80 4 190 108 M16 29 2 22.3 127 152.4 3/4 90.7 3.7
4 100 8 230 135 M16 32 2 22.3 157.2 190.5 3/4 116.1 5.9
3 1/2 90 8 215 122 M16 30 2 22.3 139.7 177.8 3/4 103.4 5
5 125 8 255 164 M20 35 2 22.3 185.7 215.9 7/8 143.8 6.8
8 200 8 345 246 M20 43 2 27 269.9 298.5 7/8 221.5 13.7
10 250 12 405 305 M24 48 2 28.6 323.8 362 1 276.2 19.5
6 150 8 280 192 M20 38 2 23.9 215.9 241.3 7/8 170.7 8.6
12 300 12 485 365 M24 54 2 30.2 381 431.8 1 327 29
24 600 20 815 663 M33 81 2 46.1 692.2 749.3 1 3/8 616 100
16 400 16 595 457 M27 62 2 35 469.9 539.8 1 1/8 410.5 54
18 450 16 635 505 M30 67 2 38.1 533.4 577.9 1 1/4 461.8 59
14 350 12 535 400 M27 56 2 33.4 412.8 476.3 1 1/8 359.2 41
20 500 20 700 559 M30 71 2 41.3 584.2 635 1 1/4 513.1 75

SMO 254 Weld Neck Flange Dimensions

Flange NPS H Inside
Diameter		 Flat Face
Thickness (T2)		 Outside
Diameter		 Raised Face
(RF)		 Raised Face
(R)		 H1 Raised Face
Thickness (T)		 T1 Bolt Circle
(BC)		 Bolt Hole
(B)		 No. of
Bolt Holes
1/2" 1.19" 0.62" 1.82" 3.50" .063" 1.38" 0.84" 1.88" .38" 2.38" .62" 4
1-1/4" 2.31" 1.38" 2.19" 4.62" .063" 2.50" 1.66" 2.25" .56" 3.50" .62" 4
3/4" 1.50" 0.82" 2.00" 3.88" .063" 1.69" 1.05" 2.06" .44" 2.75" .62" 4
1-1/2" 2.56" 1.61" 2.38" 5.00" .063" 2.88" 1.90" 2.44" .62" 3.88" .62" 4
1" 1.94" 1.05" 2.13" 4.25" .063" 2.00" 1.32" 2.19" .50" 3.12" .62" 4
2" 3.06" 2.07" 2.44" 6.00" .063" 3.62" 2.38" 2.50" .69" 4.75" .75" 4
2-1/2" 3.56" 2.47" 2.69" 7.00" .063" 4.12" 2.88" 2.75" .82" 5.50" .75" 4
3" 4.25" 3.07" 2.69" 7.50" .063" 5.00" 3.50" 2.75" .88" 6.00" .75" 4
4" 5.31" 4.03" 2.94" 9.00" .063" 6.19" 4.50" 3.00" .88" 7.50" .75" 8
5" 6.44" 5.05" 3.44" 10.00" .063" 7.31" 5.56" 3.50" .88" 8.50" .88" 8
3-1/2" 4.81" 3.55" 2.75" 8.50" .063" 5.50" 4.00" 2.81" .88" 7.00" .75" 8
6" 7.56" 6.07" 3.44" 11.00" .063" 8.50" 6.63" 3.50" .94" 9.50" .88" 8
8" 9.69" 7.98" 3.94" 13.50" .063" 10.62" 8.63" 4.00" 1.06" 11.75" .88" 8
22" 24.25" 21.25" 5.82" 29.50" .063" 25.25" 22.00" 5.88" 1.75" 27.25" 1.38" 20
10" 12.00" 10.02" 3.94" 16.00" .063" 12.75" 10.75" 4.00" 1.13" 14.25" 1.00" 12
12" 14.38" 12.00" 4.44" 19.00" .063" 15.00" 12.75" 4.50" 1.19" 17.00" 1.00" 12
16" 18.00" 15.25" 4.94" 23.50" .063" 18.50" 16.00" 5.00" 1.38" 21.25" 1.12" 16
18" 19.88" 17.25" 5.44" 25.00" .063" 21.00" 18.00" 5.50" 1.50" 22.75" 1.25" 16
14" 15.75" 13.25" 4.94" 21.00" .063" 16.25" 14.00" 5.00" 1.32" 18.75" 1.12" 12
20" 22.00" 19.25" 5.63" 27.50" .063" 23.00" 20.00" 5.69" 1.63" 25.00" 1.25" 20
24" 26.12" 23.25" 5.94" 32.00" .063" 27.25" 24.00" 6.00" 1.82" 29.50" 1.38" 20
Bulk discount on RF, TF, FF, GF, RTJ ASTM A182 SMO 254 Plate Flange and DIN 2.4819 Forged Flanges in India

SMO 254 Blind Flanges Dimensions

Size in Inch Size in mm ISO Stud Size RF Height Outer Dia. RF Dia. Hole Size PCD No of Bolts Bolt Size UNC Flange Thickness RF Stud Length Weight in kg
D A C E B
1/2 15 M20 7 135 34.9 7/8 88.9 4 3/4 30.2 120 3.2
3/4 20 M20 7 140 42.9 7/8 95.2 4 3/4 31.8 125 3.7
1 25 M24 7 160 50.8 1 108 4 7/8 35 140 5
1 1/4 32 M27 7 185 63.5 1 1/8 130.2 4 1 38.1 150 7.8
1 1/2 40 M30 7 205 73 1 1/4 146 4 1 1/8 44.5 170 10.5
2 50 M27 7 235 92.1 1 1/8 171.4 8 1 50.9 180 18
2 1/2 65 M30 7 265 104.8 1 1/4 196.8 8 1 1/8 57.2 195 25.5
3 80 M33 7 305 127 1 3/8 228.6 8 1 1/4 66.7 220 39
4 100 M39 7 355 157.2 1 5/8 273 8 1 1/2 76.2 255 61.5
5 125 M45 7 420 185.7 1 7/8 323.8 8 1 3/4 92.1 300 102
6 150 M52 7 485 215.9 2 1/8 368.3 8 2 108 345 157
8 200 M52 7 550 269.9 2 1/8 438.2 12 2 127 380 241
10 250 M64 7 675 323.8 2 5/8 539.8 12 2 1/2 165.1 490 470
12 300 M72 7 760 381 2 7/8 619.1 12 2 3/4 184.2 540 575
Grade % Ni Cr Mo Cu N C Mn Si P S
SMO 254 Min. 17.5 19.5 6 0.5 0.18
Max. 18.5 20.5 6.5 1 0.22 0.02 1 0.8 0.03 0.01

The F44 Flanges can be defined as a material of grade F44 of the super austenitic stainless steel alloy. It can also be described as the 6% Mo flanges that possess moderate mechanical strength and have high ductility. They are widely known for their excellent corrosion resistance properties, especially in seawater and various other industrial environments. It comes with a very high resistance to pitting corrosion and also a good amount of crevice corrosion resistance. The material shows good ductility at ambient temperature, and retains the property even at the sub-zero temperature. It has a high molybdenum content in its chemical composition and that is why they are used as a good alternative to the 300 series stainless steel in applications where higher mechanical strength or resistance to different types of corrosion are required. The alloy, however, has lower yield strength compared to the duplex stainless, and much lower compared to the super duplex stainless steel. It’s pitting resistance properties are quite similar to that of the duplex stainless steel.They also come with good weldability.

The F44 Flanges are used for a wide range of industrial applications in transportational and architectural fields.

Element Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
SMO 254 8.0 g/cm3 1320-1390 ℃ 650 300 35 %
STANDARD WERKSTOFF NR. UNS AFNOR SIS GOST BS OR EN
SMO 254 1.4547 S31254 Z1 CNDU 20.18.06Az 2378 - - - X1CrNiMoCuN20-18-7
Properties Metric Imperial
Thermal expansion co-efficient (@20-100°C/68-212°F) 16.5 µm/m°C 9.17 µin/in°F
Thermal conductivity 14 W/mK 97.2 BTU in/hr.ft².°F

The WNR 1.4547 RTJ Flange Vs and the A182 UNS S31254 Blind Flange have different structural appearance and because of that they serve different purposes. Also, while RTJ is a face type of a flange, the Blind is a type of flange. But as the materials of which they are made are the same, they are both used in similar environments.

The WNR 1.4547 RTJ Flange looks like a metallic ring that has deep cuts and grooves in its face. They are designed to give leak-proof connections for high temperature and high pressure services.

The A182 UNS S31254 Blind Flange is basically a metallic plate with bolted holes around them. They are used to end pipe connections or for sealing the nozzles of the valves. They are mostly used in those parts of the piping connection that is not under usage.

Check ASME B16.5 Class 150/ 300/ 600 254 SMO Socket Weld Flange and UNS S31254 Reducing Flanges pressure temperature ratings & price in India
A182 F44 6mo SORF Flanges

A182 F44 6mo SORF Flanges

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300 LBS A182 Grade F44 Nipoflange

Alloy 254 Screwed Flange

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ASTM A182 F44 Stainless Steel Spectacle Blind Flange

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15 NB Alloy 254 SMO Tongue & Groove Flange

A182 SMO 254 Lapped Joint Flange

A182 SMO 254 Lapped Joint Flange

ASTM A182 UNS S31254 Blind Flange

ASTM A182 UNS S31254 Blind Flange

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ASTM A182 Grade F44 Expander Flanges

5000 NB 1.4547 Stainless Steel Threaded Flange

5000 NB 1.4547 Stainless Steel Threaded Flange

En 1.4547 Ring Joint Flange

En 1.4547 Ring Joint Flange

S31254 Stainless Steel Socket Weld Flange

S31254 Stainless Steel Socket Weld Flange

1500 LBS ASTM A182 F44 SWRF Flanges

1500 LBS ASTM A182 F44 SWRF Flanges

Alloy 254 Slip on Flange

Alloy 254 Slip on Flange

2500 LBS A182 F44 Uns S31254 WNRF Flange

2500 LBS A182 F44 Uns S31254 WNRF Flange

A182 F44 BLRF Flanges

A182 F44 BLRF Flanges

254 SMO Stainless Steel Reducing Flanges

254 SMO Stainless Steel Reducing Flanges

900 LBS UNS S31254 Weld neck Flange

900 LBS UNS S31254 Weld neck Flange

600 LBS ASME SA182 SMO 254 Long Weld Neck Flange

600 LBS ASME SA182 SMO 254 Long Weld Neck Flange

SMO 254 Flanges

SMO 254 Flanges

F44 Flanges

F44 Flanges

WNR 1.4547 RTJ Flange

WNR 1.4547 RTJ Flange

ASME B16.5 A182 F44 WNRF Flange DN100 SCH40 Class 1500

ASME B16.5 A182 F44 WNRF Flange DN100 SCH40 Class 1500

Annealing 1149-1204°C (2100-2200°F)
  • Cement Industries
  • Paper Industries
  • Oil and Gas Industries
  • Power Industries
  • Ship Building Industries
  • Pipeline
  • Chemical Industries
  • Food Processing Industries

PREN= (Cr% + 3.3Mo% + 16N%) ≥ 40

Solution annealing at min 1150°C followed by water quenching.

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