Manufacturers & Suppliers of Flanges, Pipe Fittings & Tube Fittings

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Lap Joint Flanges

Manufacturer of Flat Faced Lap Joint Flanges, Inconel Lap Joint Flange, Ready Stock Of Raised Faced Lap Joint Flanges, EN1092-1 LJRF Flanges, ANSI B16.5 Class 150 LJ Flanges, Stainless Steel Lapped Joint Flanges Supplier in Mumbai.

Unifit Metal Alloys is a Supplier of Lap Joint Pipe Flanges, which are less rust resistant than austenitic types. Nickel Alloy Lap Joint Flanges is an austenitic chromium-nickel grade with good oxidation protection up to 1094° C. It is recommended for uses where sensitization and later corrosion by high temperature gases or condensates during closure may be an issue. This product is perfect for high-temperature uses such as thermal treatment and chemical processing. It's a medium carbon austenitic steel designed for high-temperature uses like furnace parts and heat treatment machinery. This is a Multi-Purpose Heat Resilient Steel by means of having Oxidation Confrontation to 2010 Degree F (1100 Degree C)under insignificantly cyclic environments.

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Table of Content

ASTM A182 SS Lapped Joint Flange, Alloy 20 LJ Flanges, Inconel Raised Face Lap Joint Flange, API 6A LJRF Flange, Nickel Alloy Lap Joint Plate Flanges, Carbon Steel Lapped Joint Flange, Flat Faced Lap Joint Flanges, ANSI B16.5 Lap Joint Flanges Manufacturer In Mumbai, India.

Alloy 20 Lap Joint Flanges is well-known for its ability to endure high-temperature uses, but it also provides users with a number of advantages.Under slightly cyclic circumstances, it has good oxidation resistance. This steel does not require preheating because the inter-pass temperature should not surpass 150 degrees Celsius. It is extremely immune to oxidising acids and most common corrosive agents, and it outperforms lower alloy grades in maritime circumstances by showing little signs of chloride stress corrosion cracking. It is one of the most commonly used types of heat resistant steel in a variety of industries. This steel is a high-temperature austenitic steel with a significant metal content. It is austenitic steel with good ductility and weld ability and great high temperature characteristics.

Titanium Alloy Lap Joint Flanges can withstand temperatures of up to 1150° C in constant operation and 1035° C in intermittent service. This steel is austenitic steel designed for high temperature rust resistance. It is an austenitic heat resistant alloy with good oxidation resistance under slightly cyclic circumstances up to 2000 degrees F. They have excellent corrosion resistance, are not susceptible to thermal stress or repetitive heating, and have good aqueous corrosion resistance.Under slightly cyclic circumstances, it can withstand oxidation up to 2010 degrees F (1100 degrees C). Because this product has only 30% of the thermal transmission of non-alloyed steels, heat treatment after welding is not common.

Lap Joint Flanges

Get a best quote for SS LJ Flanges, We Keep Bulk Stock of Raised Face Lap Joint Flanges at our stockyard, contact us to request a quote.

Lap Joint Flanges Specifications

Size Chart 1/2" (15 NB) to 48" (1200NB) DN10~DN5000
Standards ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ASME Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ASME B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092
Pressure Rating ANSI Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS
DIN 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64
JIS 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K
UNI 6Bar 10Bar 16Bar 25Bar 40Bar
EN 6Bar 10Bar 16Bar 25Bar 40Bar
Coating Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized
Most Common Types Forged / Threaded / Screwed / Plate
Test Certificates EN 10204/3.1B
Raw Materials Certificate
100% Radiography Test Report
Third Party Inspection Report, etc
Production technique
  • Forged, Heat treated and machined
Connect Type/ Flange Face Type Raised Face (RF), Lap Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove
Special design

As per your drawing
AS, ANSI, BS, DIN and JIS
15 NB (1/2") to 200 NB (8")
Equal and Reducing Configurations
Test Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector
Equipment Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc
Origin Indian / West Europe / Japan / USA / Korean
Manufacturer of

ASME DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc.
ANSI B16.5 Class 150 Lap Joint Flanges: -BS Flange, EN Flange, API 6A Flanges, ASME Flanges, ASME Flanges, DIN Flanges, EN1092-1 Flanges, UNI Flanges, JIS/ KS Flanges, BS4504 Flanges, GB Flanges, AWWA C207 Flanges, GOST Flanges, PSI Flangse

  • B.S: BS4504 , BS3293, BS1560, BS10
  • AS 2129: Table D; Table E; Table H
  • ASME B16.5, ASME B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
  • ASME : ASME B16.5, ASME B16.47(API605), MSS SP44, ASME B16.36, ASME B16.48
  • ASME B16.5, ASME B16.47, MSS SP44, ASME B16.36, ASME B16.48
  • American standard (ANSI)
  • German (DIN)
  • British standard (BS)
  • DIN: DIN 2527, DIN 2566, DIN 2573, DIN 2576, DIN 2641, DIN 2642, DIN 2655, DIN 2656, DIN 2627, DIN 2628, DIN 2629, DIN 2631, DIN 2632, DIN 2633, DIN 2634, DIN 2635, DIN 2636, DIN 2637, DIN 2638 ANSI B16.5 Class 150 Lap Joint Flanges
  • The other standard: AWWA C207; EN1092-1, GOST12820, JIS B2220; KS B1503, SABS1123; NFE29203; UNI2276
Uses & Application
  • Bitumen upgraders.
  • Heavy oil refineries.
  • Nuclear power (mostly seamless).
  • Petrochemicals and acids.

Material Grades of Lap Joint Flanges

Stainless Steel Lap Joint Flanges ASTM/ASME A/SA182 F304, F304L, F316, F316L, ASTM/ASME A/SA351 CF8, CF3, CF8M, CF3M, DIN 1.4301, DIN 1.4306, DIN 1.4401, DIN 1.4404, DIN 1.4308, DIN 1.4408, DIN 1.4306, DIN 1.4409
Carbon Steel Lap Joint Flanges ASTM/ASME A/SA105 A/SA105N & A/SA216-WCB, DIN 1.0402, DIN 1.0460, DIN 1.0619, Die Steel, ASTM A105 / ASME SA105, A105N, ASTM A350 LF2 / ASME SA350, High Yield CS ASTM A694 / A694 (F52 F56 F60 F65 F70 F80)
Alloy Steel Lap Joint Flanges ASTM A182 / ASME SA182 F5, F9, F11, F12, F22, F91
Titanium Lap Joint Flanges ASTM B381 / ASME SB381, Titanium Gr. 1, Titanium Gr. 2, Titanium Gr. 4, Titanium Gr. 5, Titanium Gr. 7
ASTM R50250/GR.1 | R50400/GR.2 | R50550/GR.3 | R50700/GR.4 | GR.6 |R52400/GR.7 | R53400/GR.12 | R56320/GR.9 |R56400/GR.5
Copper Lap Joint Flanges T1, T2, C10100, C10200, C10300, C10400, C10500, C10700, C10800, C10910,C10920, TP1, TP2, C10930, C11000, C11300, C11400, C11500, C11600, C12000,C12200, C12300, TU1, TU2, C12500, C14200, C14420, C14500, C14510, C14520, C14530, C17200, C19200, C21000, C23000, C26000, C27000, C27400, C28000, C33000, C33200, C37000, C44300, C44400, C44500, C60800, C63020, C68700, C70400, C70600, C70620, C71000, C71500, C71520, C71640, etc
Copper Nickel Lap Joint Flanges ASTM / ASME SB 61 / 62 / 151 / 152, Copper Nickel 90/10 (C70600 ), Cupro Nickel 70/30 (C71500), UNS C71640
Inconel Lap Joint Flanges ASTM B564 / ASME SB564, Inconel 600, 601, 625, 718, 783, 690, x750 ANSI B16.5 Class 150 Lap Joint Flanges
Hastelloy Lap Joint Flanges ASTM B564 / ASME SB564, Hastelloy C276 (UNS N10276), C22 (UNS N06022), C4, C2000, B2, B3, X Flanges
Monel Lap Joint Flanges ASTM B564 / ASME SB564, Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500)
Alloy 20 Lap Joint Flanges ASTM B462 / ASME SB462, Carpenter® 20 Alloy, Alloy 20Cb-3
Aluminium Lap Joint Flanges 5052 /6061/ 6063 / 2017 / 7075 / etc.
Nickel Alloy Lap Joint Flanges ASTM B564 / ASME SB564, Nickel 200, Nickel 201, Nickel 205, Nickel 205LC
Duplex Steel Lap Joint Flanges S31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Super Duplex Lap Joint Flanges S32750 / S32760 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Incoloy Lap Joint Flanges ASTM B564 / ASME SB564, Incoloy 800, 800H, 800HT (UNS N08800), 825 (UNS N08825), 925 Flanges
254 SMO Lap Joint Flanges ASTM A182 / ASME SA182, SMO 254/6Mo, UNS S31254, DIN 1.4547
Nimonic Lap Joint Flanges Nimonic 75, Nimonic 80A, Nimonic 90
Brass Lap Joint Flanges 3602 / 2604 / H59 / H62 / etc.
Other Lap Joint Flanges material Tin bronze, Alumunum bronze, Lead bronze

Dimensions of Lap Joint Flanges

ANSI/ASME/ASA B16.5 150lb/sq.in. Flanges
ø D b g m J h k Holes l Kg.
1/2" 88,9 11,1 34,9 30,2 22,3 15,9 60,3 4 15,9 0,400
3/4" 98,4 12,7 42,9 38,1 27,7 15,9 69,8 4 15,9 0,700
1" 107,9 14,3 50,8 49,2 34,5 17,5 79,4 4 15,9 0,800
1 1/4" 117,5 15,9 63,5 58,8 43,2 20,6 88,9 4 15,9 1,100
1 1/2" 127,0 17,5 73,0 65,1 49,5 22,2 98,4 4 15,9 1,400
2" 152,4 19,0 92,1 77,8 62,0 25,4 120,6 4 19,0 2,200
2 1/2" 177,8 22,2 104,8 90,5 74,7 28,6 139,7 4 19,0 3,600
3" 190,5 23,8 127,0 107,9 90,7 30,2 152,4 4 19,0 4,100
3 1/2" 215,9 23,8 139,7 122,2 103,4 31,7 177,8 8 19,0 5,200
4" 228,6 23,8 157,2 134,9 116,1 33,3 190,5 8 19,0 5,600
5" 254,0 23,8 185,7 163,6 143,8 36,5 215,9 8 22,2 6,300
6" 279,4 25,4 215,9 192,1 170,7 39,7 241,3 8 22,2 7,500
8" 342,9 28,6 269,9 246,1 221,5 44,4 298,4 8 22,2 12,600
10" 406,4 30,2 323,8 304,8 276,3 49,2 361,9 12 25,4 18,500
12" 482,6 31,7 381,0 365,1 327,1 55,6 431,8 12 25,5 28,000
14" 533,4 34,9 412,7 400,0 359,1 57,1 476,2 12 28,6 36,000
16" 596,9 36,5 469,9 457,2 410,5 63,5 539,7 16 28,6 46,000
18" 635,0 39,7 533,4 504,8 461,8 68,3 577,8 16 31,7 50,000
20" 698,5 42,9 584,2 558,8 513,1 73,0 635,0 20 31,7 64,000
22" 749,3 46,0 641,2 609,6 564,4 79,4 692,1 20 34,9 72,000
24" 812,8 47,6 692,1 663,6 615,9 82,5 749,3 20 34,9 89,000
ANSI/ASME/ASA B16.5 600lb/sq.in. Flanges
ø D b g m J h k Holes l Kg.
1/2" 95,2 14,3 34,9 38,1 22,3 22,2 66,7 4 15,9 0,800
3/4" 117,5 15,9 42,9 47,6 27,7 25,4 82,5 4 19,0 1,400
1" 123,8 17,5 50,8 54,0 34,5 27,0 88,9 4 19,0 1,600
1 1/4" 133,3 20,6 63,5 63,5 43,2 28,6 98,4 4 19,0 2,100
1 1/2" 155,6 22,2 73,0 69,8 49,5 31,7 114,3 4 22,2 3,100
2" 165,1 25,4 92,1 84,1 62,0 36,5 127,0 8 19,0 3,700
2 1/2" 190,5 28,6 104,8 100,0 74,7 41,3 149,2 8 22,2 5,400
3" 209,5 31,7 127,0 117,5 90,7 46,0 168,3 8 22,2 7,300
3 1/2" 228,6 34,9 139,7 133,3 103,4 49,2 184,1 8 25,4 8,900
4" 273,0 38,1 157,2 152,4 116,1 54,0 215,9 8 25,4 11,800
5" 330,2 44,4 185,7 188,9 143,8 60,3 266,7 8 28,6 24,500
6" 355,6 47,6 215,9 222,2 170,7 66,7 292,1 12 28,6 29,500
8" 419,1 55,6 269,9 273,0 221,5 76,2 349,2 12 31,7 43,000
10" 508,0 63,5 323,8 342,8 276,3 85,7 431,8 16 34,9 70,000
12" 558,8 66,7 381,0 400,0 327,1 92,1 488,9 20 34,9 86,000
14" 603,2 69,8 412,7 431,8 359,1 93,7 527,0 20 38,1 100,000
16" 685,8 76,2 469,9 495,3 410,5 106,4 603,2 20 41,3 142,000
18" 742,9 82,5 533,4 546,1 461,8 117,5 654,0 20 44,4 175,000
20" 812,8 88,9 584,2 609,6 513,1 127,0 723,9 24 44,4 232,000
22" 869,9 95,2 641,2 666,7 564,4 133,3 777,9 24 47,6 292,000
24" 939,8 101,6 692,1 717,5 615,9 139,7 838,2 24 50,8 330,000

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ASME B16.5 Lap Joint Flange Weight Chart

Rated Diameter O.D. of Pipe Flange Parameter Neck Size Size of R.F. Bolts Approx. Weight
DN d1 D d5 b k h d3 r d4 f No. of
holes		 d2 KG
10 17.2 90 17.7 14 60 20 30 4 40 2 4 14 0.56
15 21.3 95 22 14 65 20 35 4 45 2 4 14 0.62
20 26.9 105 27.6 16 75 24 45 4 58 2 4 14 0.91
25 33.7 115 34.4 16 85 24 52 5 68 2 4 14 1.09
32 42.4 140 43.1 16 100 26 60 5 78 2 4 18 1.58
40 48.3 150 49 16 110 26 70 5 88 3 4 18 1.76
50 60.3 165 61.1 18 125 28 85 5 102 3 4 18 2.39
65 76.1 185 77.1 18 145 32 105 5 122 3 4 18 3.1
80 88.9 200 90.3 20 160 34 118 5 138 3 8 18 3.77
100 114.3 220 115.9 20 180 38 140 5 158 3 8 18 4.29
125 139.7 250 141.6 22 210 40 168 5 188 3 8 18 5.86
150 168.3 285 170.5 22 240 44 196 5 212 3 8 22 7.22
175 193.7 315 196.1 24 270 44 224 6 242 3 8 22 9.18
200 219.4 340 222 24 295 44 247 6 268 3 8 22 9.95
250 273 395 276 26 350 46 300 6 320 3 12 22 12.69
300 323.9 445 327 26 400 46 352 6 370 4 12 22 14.4
350 355.6 505 359 26 460 53 398 10 430 4 16 22 22.36
400 406.4 565 410 26 515 57 448 10 482 4 16 26 26.85
450 457 615 461 28 565 62 502 10 532 4 20 26 32.53
500 508 670 512 28 620 67 552 10 585 4 20 26 37.84
600 610 780 614 28 725 75 658 10 685 5 20 30 49.32
700 711 895 716 30 840 77 760 10 800 5 24 30 63.86
800 813 1015 818 32 950 84 864 10 905 5 24 33 85.19
900 914 1115 920 34 1050 88 969 10 1005 5 28 33 101.4
1000 1016 1230 1022 34 1160 92 1071 10 1110 5 28 36 119.7

Ready Stock of Lap Joint Flanges

  • Stainless Steel Lapped Joint Flanges
  • Hastelloy Flat Faced Lap Joint Flanges
  • High Quality Lap Joint Flange
  • Lap Joint Plate Flanges
  • Super Duplex Steel Lap Joint Flange
  • ASTM A182 Stainless Steel LJRF Flange
  • Copper Nickel Lapped Joint Pipe Flanges
  • SS Lapped Joint Flange
  • DIN-PN16 Steel LJRF Flanges
  • Duplex Steel Raised Face Lap Joint Flanges
  • ANSI B16.5 Class 150 Lap Joint Flanges
  • Carbon Steel LJ Flanges

  • High Nickel Alloy Lap Joint Flanges
  • Class 150 Lap Joint Flange
  • ANSI B16.5 class 150 LJRF Flange
  • ANSI B16.5 Lapped Joint Flange
  • Class 600 RTJ Flange Stockist
  • Hastelloy Lapped Joint Raised Face Flanges
  • 254 SMO Lap Joint Flange Supplier
  • Lap Joint Plate Flanges
  • Titanium Lap Joint Flanges
  • Duplex Steel 2205 Lap Joint Flange
  • Alloy 20 RTJ Flanges
  • Super Duplex 2507 LJRF Flanges

Blind Flanges Application Industries

Application Industries

Refineries

90%

Oil and Gas Industry

96%

Power Generation

80%

Pharmaceutical Equipment

85%

Pulp & Paper Industry

88%