MSS SP-44 Flange

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MSS SP-44 Series A/ B Steel Pipeline Flange manufacturer in India

What is MSS SP 44 Flange?
The MSS SP 44 specification basically covers the materials, tolerances, dimensions, pressure-temperature ratings, markings, and testing for the pipelines made of steel. Flanges of the MSS SP 44 are much well suited for several fields compared to other flanges of any other standards. The MSS SP 44 Blind Flanges are either made of forged steel or steel plates. The pipe size of the MSS SP 44 Flanges vary between 26” to 60”, and the dimensions, shapes and sizes can be customized according to specific requirements. Basically the standard used for MSS SP 44 Flanges are based on ladle analysis, which defines that the maximum carbon content is 0.3% and CE should not exceed the 0.48% limitation, without the purchaser’s prior approvals. In case the CE exceeds 0.45% in the MSS SP 44 Flange, then it is essential to mark the flange with the actual CE result. Also, the tests conducted by MSS SP 44 Flanges need to be as per the ASTM A370 specifications.

How do I Select a MSS SP 44 flange class?
The MSS SP 44 flange class refers to the maximum pressure that a given flange can withstand in an increasing temperature environment. Flanges that have a higher rating are stronger compared to the ones with lower ratings. It means they can bear greater pressure at increasing temperature conditions.

MSS SP 44 Class 150 Flanges Vs MSS SP 44 Class 600 flanges?
The difference between MSS SP 44 Class 150 Flanges and MSS SP 44 Class 600 flanges is that, the class 150 flange is able to withstand higher pressure compared to the class 600 flanges. The higher the pressure ratings, the stronger the flange.

Difference Between MSS SP 44 Series A and B flanges?
The main differences Between MSS SP 44 Series A and B flanges would include:

  • The series A flanges are thicker than series B, even if they are of the same size and pressure rating.
  • The series A flanges are capable of withstanding more external loading compared to the series B flanges.
  • The series B flanges need smaller but more fasteners compared to series A.
  • Series B comes with a smaller bolt circle diameter and hence they have smaller flange movements post installation.
  • Only series A flange has a Ring Type Joint flange from pressure class 600 to 900 of the given standard.
  • Series B flanges are more affordable than the series A flanges.
  • The series A flanges are primarily used in new pipelines or equipment, whereas the series B flanges are most often used in replacements and non-critical piping jobs.
MSS SP-44 Flange

MSS SP-44 Flange

AN ISO 9001:2015 certified MSS SP-44 Class 150 Flanges manufacturers in India offers widest range of MSS SP-44 Gr F52 and F60 Slip On Flange in Mumbai

Table of Content


Dimensions  ASME B16.5, ASME B16.47 Series A & B, MSS SP44
Size 1/2" to 48"
JIS 5K, 16 K 10 K, 20 K, 40 K, 30 K, 63 K
Class 300 LBS, 150 LBS, 900 LBS, 600 LBS, 1500 LBS, 2500 LBS
UNI 6Bar 16Bar 10Bar 25Bar 40Bar
Flange Face Type Provided By Manufacturer RF (Raised Face), RTJ (Ring Type Joint)
EN 6Bar 25Bar 10Bar 40Bar 16Bar
BS BS4504 , BS4504, BS1560, BS10
Value Added Services CNC Machining, Customised Flanges
Making Methods Provided By Manufacturer Casting And Forging
Rolling And Cutting
Flanges Test Hydrostatic testing machine/ UI trasonic flaw detector/ X-ray detector/ Direct-reading Spectrograph/ Magnetic particle detector
Outer diameters 1/2” to 24”
Coating/Surface Treatment By Manufacturer Antirust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized
Flanges Equipment Pushing Machine/ electric bevelling machine/ Press machine/ Bending machine/ Sand-blasting machine etc
Standards Provided By Manufacturer EN-1092, DIN, API7S-43, API605, B16.48, ISO70051, MSS S44, ANSI/ASME B16.5, B16.47 Series A & B, BS4504, BS 10, API7S-15, JISB2220, BS1560-3.1, ASME/ANSI B16.5/16.36/16.47A/16.47B, EN1092

Biggest MSS SP-44 Steel Pipeline Flange stockists, supplier, wholesalers, dealers, stockholders, distributor, importer, exporters and Manufacturer in Mumbai

Stainless Steel ASTM A182 Gr. 304, 304L, 309, 316, 310, 316L, 317L, 321, 347, 904L
Carbon Steel High Yield CS ASTM A694 / A694 (F52 F56 F60 F65 F70 F80), A181 LF2, A105N, ASTM A350 LF2 / ASME SA350, ASTM/ASME A/SA105 A/SA105N & ASTM A105 / ASME SA105, P235GH, P245GH, P250GH, RST37.2, C22.8, S235JR, ST37, A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F706
Duplex Steel ASTM A 182, ASME SA 182 UNS NO S31803, S32205. Werkstoff No. 1.4462
Nickel Alloy ASTM / ASME SB 564 UNS 4400 (MONEL 400 ), UNS 2200 ( NICKEL 200 ), UNS 8825 INCONEL (825), UNS 2201 (NICKEL 201 ), UNS 8020 ( ALLOY 20 / 20 CB 3, UNS 6601 ( INCONEL 601 ), UNS 6625 (INCONEL 625), UNS 6600 (INCONEL 600 ), UNS 10276 ( HASTELLOY C 276 )
Copper Nickel Cupro Nickel 70/30 (C71500), Copper Nickel 90/10 (C70600 ), ASTM / ASME SB 62 / 151 / 61 / 152, UNS C71640
Alloy Steel F11, F12, F5, F9, F22, F91
Other Titanium, Aluminium, 254 SMO
Norminal Pipe Size O.D.of Flange, O Min.Thick-ness of BL Flange, tf Raised Fase Diam., R Diam of Bolt Circle No.of Bolt Holes Diam.of Bolt Hole Approxi-mate Weight kgs
26 870 66.7 749 806.4 24 34.9 306.37
28 925 69.9 800 863.6 28 34.9 362.18
30 985 73.1 857 914.2 28 34.9 431.26
32 1060 79.4 914 977.9 28 41.3 537.39
34 1110 81.0 965 1028.7 32 41.3 600.01
36 1170 88.9 1022 1085.8 32 41.3 733.85
38 1240 85.8 1073 1149.4 32 41.3 799.33
40 1290 88.9 1124 1200.2 36 41.3 894.73
42 1345 95.3 1194 1257.3 36 41.3 1045.24
44 1405 100.1 1245 1314.4 40 41.3 1196.23
46 1455 101.6 1295 1365.2 40 41.3 1305.08
48 1510 106.4 1359 1422.4 44 41.3 1470.44
50 1570 109.6 1410 1479.6 44 47.6 1623.89
52 1625 114.3 1461 1536.7 44 47.6 1818.21
54 1685 119.1 1511 1593.8 44 47.6 2041.23
56 1745 122.3 1575 1651.0 48 47.6 2246.21
58 1805 127.0 1626 1708.2 48 47.6 2500.27
60 1855 130.2 1676 1759.0 52 47.6 2704.21

Supply MSS SP-44 Steel Pipeline Flange with pressure test to confirm the integrity of weldments

Norminal Pipe Size O.D.of Flange, O Min.Thick-ness of BL Flange, tf Raised Fase Diam., R Diam of Bolt Circle No.of Bolt Holes Diam.of Bolt Hole Approxi-mate Weight kgs
26 890 111.3 727 806.4 28 44.5 528.79
28 950 115.9 784 863.6 28 47.6 626.51
30 1020 127.0 841 927.1 28 50.8 789.17
32 1085 134.9 895 984.2 28 54.0 946.54
34 1160 144.2 953 1054.1 24 60.3 1158.72
36 1215 150.9 1010 1104.9 28 60.3 1323.63
MSS SP-44 Flange Price Per Piece in India MSS SP-44 Series A Flange Price in INR MSS SP-44 Series B Flange Price in UAE Dirham MSS SP-44 Class 150 Flanges Price in USD
FLANGES- F51/F60 22 SPACER 300RF TO SUIT MSS-SP-44 63-125 RMS NACE Per Unit 1,503 UAE Dirham 74.27 $20.22
FLANGES - B16.47A MSS SP44 A/SA350LF2.BL 150 36 RF Per Unit 342 UAE Dirham 16.90 $4.60
BLIND FLANGE ASME B16.5 CL. 2500RF RJ MSS-SP44 GR. F52 CERTIF. MSS-SP 44 Per Unit 8,868 UAE Dirham 438.23 $119.30

Check our price with other MSS SP-44 Class 150 Flanges Manufacturer in India Before Purchasing. This is an approximate Price of MSS SP-44 Flange in India. Feel free to contact us latest Stocklist of MSS SP-44 Series A Flanges in Mumbai.

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

Buy flat/ raised face MSS SP-44 Series B Pipe Flange at Unbeatable Prices in Mumbai

MSS SP-44 Class 150 Flanges

Normal Size Outside Daimeter Thick. Outside Daimeter of RF Diameter at Base Bore LTH Dia Bevel Drilling Weight In KG
WN BLRF Circle Of Bolt Length Of Bolt Hole Diameter Number of Holes WN BLRF
O C C R X B Y A (1) (2)
26 34.25 2.63 2.63 29.5 26.62 - 4.69 26 31.75 8.75 1.38 24 300 702
28 36.5 2.75 2.75 31.5 28.62 4.88 28 34 9 1.38 28 345 833
30 38.75 2.88 2.88 33.75 30.75 5.32 30 36 9.25 1.38 28 400 982
32 41.75 3.13 3.13 36 32.75 5.63 32 38.5 10.5 1.62 28 505 1237
34 43.75 3.19 3.19 38 34.75 5.82 34 40.5 10.5 1.62 32 540 1384
36 46 3.5 3.5 40.25 36.75 6.13 36 42.75 11 1.62 32 640 1676
38 48.75 3.38 3.38 42.25 39 6.13 38 45.25 11 1.62 32 720 1819
40 50.75 3.5 3.5 44.25 41 6.38 40 47.25 11 1.62 36 775 2040
42 53 3.75 3.75 47 43 6.69 42 49.5 11.5 1.62 36 890 2381
44 55.25 3.94 3.94 49 45 6.94 44 51.75 12 1.62 40 990 2717
46 57.25 4 4 51 47.12 7.25 46 53.75 12 1.62 40 1060 2961
48 59.5 4.19 4.19 53.5 49.12 7.5 48 56 12.5 1.62 44 1185 3348
50 61.75 4.32 4.32 55.5 51.25 7.94 50 58.25 13.25 1.88 44 1270 3716
52 64 4.5 4.5 57.5 53.25 8.19 52 60.5 13.75 1.88 44 1410 4156
54 66.25 4.69 4.69 59.5 55.25 8.44 54 62.75 14 1.88 44 1585 4639
56 68.75 4.82 4.82 62 57.38 8.94 56 65 14.25 1.88 48 1760 5132
58 71 5 5 64 59.38 9.19 58 67.25 14.75 1.88 48 1915 5675
60 73 5.13 5.13 66 61.38 9.38 60 69.25 15 1.88 52 2045 6154
MSS SP-44 Series A Flanges

MSS SP-44 Series A Flanges

MSS SP-44 Series B Flanges

MSS SP-44 Series B Flanges

MSS SP-44 Class 150 Flanges

MSS SP-44 Class 150 Flanges

MSS SP-44 Steel Pipeline Flange

MSS SP-44 Steel Pipeline Flange

MSS SP-44 Gr F52 Flanges

MSS SP-44 Gr F52 Flanges

MSS SP-44 F60 Flanges

MSS SP-44 F60 Flanges

MSS SP-44 F42 Flanges

MSS SP-44 F42 Flanges

MSS SP-44 Series A/ B Steel Pipeline Flange

MSS SP-44 Series A/ B Steel Pipeline Flange

MSS SP-44 Class 150 Flanges

MSS SP-44 Class 150 Flanges

MSS SP-44 Gr F52 Slip on Flange

MSS SP-44 Gr F52 Slip on Flange

MSS SP-44 Gr F60 Blind Flange

MSS SP-44 Gr F60 Blind Flange

MSS SP-44 Series B Pipe Flange

MSS SP-44 Series B Pipe Flange

Check MSS SP-44 Gr F52, F60, F42 Flanges standard specification & price in Mumbai
MSS SP-44 Flanges Wall Thickness
NPS (Normal Pipe Sizes) Outside Daimeter (O.D.) Schedule 10 Schedule 20 Schedule 30 STD Wall Schedule 40 Schedule 60 EXT Hvy Schedule 80 Schedule 100 Schedule 120 Schedule 140 Schedule 160 XX Hvy
½ 0.84 0.083 ... ... 0.109 0.109 ... 0.147 0.147 ... ... ... 0.188 0.294
¾ 1.05 0.083 ... ... 0.113 0.113 ... 0.154 0.154 ... ... ... 0.219 0.308
1 1.315 0.109 ... ... 0.133 0.133 ... 0.179 0.179 ... ... ... 0.25 0.358
1 ¼ 1.66 0.109 ... ... 0.14 0.14 ... 0.191 0.191 ... ... ... 0.25 0.382
1 ½ 1.9 0.109 ... ... 0.145 0.145 ... 0.2 0.2 ... ... ... 0.281 0.4
2 2.375 0.109 ... ... 0.154 0.154 ... 0.218 0.218 ... ... ... 0.344 0.436
2 ½ 2.875 0.12 ... ... 0.203 0.203 ... 0.276 0.276 ... ... ... 0.375 0.552
3 3.5 0.12 ... ... 0.216 0.216 ... 0.3 0.3 ... ... ... 0.438 0.6
3 ½ 4 0.12 ... ... 0.226 0.226 ... 0.318 0.318 ... ... ... ... 0.636
4 4.5 0.12 ... ... 0.237 0.237 ... 0.337 0.337 ... 0.438 ... 0.531 0.674
5 5.563 0.134 ... ... 0.258 0.258 ... 0.375 0.375 ... 0.5 ... 0.625 0.75
6 6.625 0.134 ... ... 0.28 0.28 ... 0.432 0.432 ... 0.562 ... 0.719 0.864
8 8.625 0.148 0.25 0.277 0.322 0.322 0.406 0.5 0.5 0.594 0.719 0.812 0.906 0.875
10 10.75 0.165 0.25 0.307 0.365 0.365 0.5 0.5 0.594 0.719 0.844 1 1.125 1
12 12.75 0.18 0.25 0.33 0.375 0.406 0.562 0.5 0.688 0.844 1 1.125 1.312 1
14 14 0.25 0.312 0.375 0.375 0.438 0.594 0.5 0.75 0.938 1.094 1.25 1.406 ...
16 16 0.25 0.312 0.375 0.375 0.5 0.656 0.5 0.844 1.031 1.219 1.438 1.594 ...
18 18 0.25 0.312 0.438 0.375 0.562 0.75 0.5 0.938 1.156 1.375 1.562 1.781 ...
20 20 0.25 0.375 0.5 0.375 0.594 0.812 0.5 1.031 1.281 1.5 1.75 1.969 ...
22 22 0.25 ... ... 0.375 ... ... 0.5 ... ... .... .... .... ....
24 24 0.25 0.375 0.562 0.375 0.688 0.969 0.5 1.219 1.531 1.812 2.062 2.344 ....
26 26 .... .... .... 0.375 .... .... 0.5 .... .... .... .... .... ....
30 30 0.312 0.5 0.625 0.375 .... .... 0.5 .... .... .... .... .... ....
36 36 0.312 0.5 0.625 0.375 0.75 .... 0.5 .... .... .... .... .... ....
40 40 .... .... .... 0.375 .... .... 0.5 .... .... .... .... .... ....
42 42 0.375 0.5
48 48 0.375 0.5
Temperature (°C)
 Class
Class 150 Class 300 Class 400 Class 600 Class 900 Class 1500 Class 2500
-29 - 38 19.8 51.7 68.9 103.4 155 259 431
50 19.5 51.7 68.9 103.4 155 259 431
100 17.7 51.5 68.7 103.0 155 258 429
150 15.8 50.2 66.8 100.3 151 251 418
200 13.8 48.6 64.8 97.2 146 243 405
250 12.1 46.3 61.7 92.7 139 232 386
300 10.2 42.9 57.0 85.7 129 214 357
325 9.3 41.4 55.0 82.6 124 207 344
350 8.4 40.0 53.4 80.0 120 200 334
375 7.4 37.8 50.4 75.7 114 189 315
400 6.5 34.7 46.3 69.4 104 174 290
425 5.5 28.8 38.4 57.5 86.3 144 240
450 4.6 23.0 30.7 46.0 69.0 115 192
475 3.7 17.1 22.8 34.2 51.3 85.4 142
500 2.8 11.6 15.4 23.2 34.7 57.9 96.5
538 1.4 5.9 7.9 11.8 17.7 29.5 49.2
Nominal Pipe Size
(inch)		 Dia. of
Flange
(inch)		 No.
of
Bolts		 Dia. of
Bolts
(inch)		 Dia. of
Bolt Holes
(inch)		 Bolt
Circle
(inch)
1/4 3-3/8 4 1/2 0.62 2-1/4
3/4 3-7/8 4 1/2 0.62 2-3/4
1 4-1/4 4 1/2 0.62 3-1/8
1/2 3-1/2 4 1/2 0.62 2-3/8
1-1/4 4-5/8 4 1/2 0.62 3-1/2
2 6 4 5/8 0.75 4-3/4
2-1/2 7 4 5/8 0.75 5-1/2
1-1/2 5 4 1/2 0.62 3-7/8
3 7-1/2 4 5/8 0.75 6
3-1/2 8-1/2 8 5/8 0.75 7
4 9 8 5/8 0.75 7-1/2
20 27-1/2 20 1-1/8 1.25 25
6 11 8 3/4 0.88 9-1/2
8 13-1/2 8 3/4 0.88 11-3/4
5 10 8 3/4 0.88 8-1/2
10 16 12 7/8 1 14-1/4
14 21 12 1 1.12 18-3/4
16 23-1/2 16 1 1.12 21-1/4
12 19 12 7/8 1 17
18 25 16 1-1/8 1.25 22-3/4
24 32 20 1-1/4 1.38 29-1/2

Flanges must be labelled in compliance with the guidelines outlined in MSS Standard Practice SP-25. In addition, before the level sign, the letter PL should be appended. The material grade of the weld flange neck is indicated by the grade symbol on the weld neck flange.

Grade F42 and lower do not require impact testing. One set (three specimens) from each steel sheet shall be tested at a maximum temperature of -45°C (-50°F) and show a minimum average of 27J (20ft-lb) and an individual minimum of 20J (15 ft-lb).

Normalized, normalised and tempered, quenched and tempered, or precipitation treated and aged MSS SP-42 F42 and above grades are required. Class 400 and above Grade F36 flanges must be annealed, normalised, normalised and tempered, or quenched and tempered in accordance with ASTM A961; however, the minimum tempering temperature must be 540°C (1000°F).

Hardness shall be HBW 235 as maximum.

  • Hydrostatic testing machine
  • X-ray detector
  • Magnetic particle detector
  • UI trasonic flaw detector
  • Hardness Test
  • Pitting Resistance Test
  • Flattening Test
  • PMI Testing
  • Direct-reading Spectrograph
  • Flaring Test
Element Limits (%)
Min. Max.
C - 0.30
Mn 0.60 1.60
P - 0.025
S - 0.025
Si 0.15 0.35
Cu - 0.40
Ni - 0.40
Cr - 0.30
Mo - 0.12
V - 0.11
Nb - 0.05
B - 0.001
Cu+Ni+Cr+Mo - 1.00
Grade Yield Point (Min.) Tensile Strength (Min.) Elongation 50mm  (2 in.) (Min. %)
Mpa ksi Mpa ksi
F36 248 36 414 60
F42 290 42 414 60
F46 317 46 414 60
F48 331 48 427 62
F50 345 50 441 64
F52 359 52 455 66
F56 386 56 469 68
F60 414 60 517 75
F65 448 65 531 77
F70 483 70 552 80
F80 550 80 620 90
  • Marine Applications
  • Fossil Fuel Power Plants
  • Paper & Pulp
  • Refineries
  • Nuclear Power
  • Oil And Gas Industry
  • Power Plants
  • Ship Building

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