Lap Joint Flange

Lap Joint Flange

Lap Joint Flange at a Glance

  • Size : DN10 - DN5000
  • Specification : ANSI B16.5
  • Bolts Holes : 4 to 24
  • Class : 150 to 2500
  • Face Type : FF, LMF, RTJ, LJF, RF, SMF
  • Thickness : SCH 10 / 10S to SCH 160
  • MTC : EN 10204 3.1 & 3.2



Stainless Steel Lap Joint Flange Manufacturer in India as per ASME B16.5

Lap Joint Flange

Lap Joint Flange

Stainless Steel Lap Joint Flange

Stainless Steel Lap Joint Flange

Carbon Steel Lap Joint Flange

Carbon Steel Lap Joint Flange

Table Of Content


Lap Joint Flange Specification
Sizes

Lap Joint Flange Sizes

  • 1/2" to 48"
  • 15 (NB) - 1200 (NB)






Pressure Class

Lapped Joint Flange Pressure Class

  • CL 600
  • CL 900
  • CL 1500
  • CL 300
  • CL 150
  • CL 2500
  • PN6 to PN64

Manufacturing Method

Manufacturing Method of LJRF flange

  • Casting
  • Forged LJ Flange (Strongest choice)
  • Plate
  • CNC Machined LJ Flange From Bar Stock

Origin

Origin of ASME B16.5 Lap Joint Flange

  • USA
  • Korean
  • West Europe
  • Japan
  • India



Coating

Stainless Steel Lap Joint Flange Coating

  • Zinc Plated
  • Cold and Hot Dip Galvanized
  • Anti-rust Paint
  • Yellow Transparent
  • Oil Black Paint

Equipment

Equipment of Raised Face Lap Joint Flange

  • Pushing Machine
  • Bending Machine
  • Sand-blasting Machine
  • Electric Bevelling Machine
  • Press Machine

MTC & Quality Test

MTC & Quality Test for Lap Flanges

  • NACE MR0175
  • Tensile Test
  • Shell Pressure Test
  • Hardness Test
  • Impact Test
  • MTC EN 10204 type 3.1
  • ISO 15156
Material

Lapped Joint Flange Material

  • Alloy Steel
  • Carbon Steel
  • Stainless Steel
  • Ductile Iron Steel
  • Copper Nickel Steel
  • Copper Steel
  • Duplex Steel
  • Titanium Steel
  • Nickel Alloy Steel
Applications

Application of Lap Joint Pipe Flange

  • Chemical Engineering
  • Offshore
  • Heavy Oil Refineries
  • Petrochemicals and Acids
  • Petrochemical
  • Power Project
  • Paper Plants
JIS Standard

JIS Standard of Lap Flanges

  • JIS B2311
  • JIS B2312
  • JIS B2220
  • KS B1543
  • KS B1522
  • KS1503
  • KS B1541
UNI Standard

Loose Ring Flanges UNI Standard

  • UNI 6088
  • UNI 2299
  • UNI 6090
  • UNI 2300
  • UNI 6089

DIN Standard

Raised Face Lap Joint Flange DIN Standard

  • DIN 2642
  • DIN 2656 PN40
  • DIN 2655 PN25
  • DIN 2653 PN10
  • DIN 2642 PN10

Test Certificates

Test Certificates of Lap Joint Flange

  • 100% Radiography Test Report
  • EN 10204/3.1B
  • Third Party Inspection Report
  • Raw Materials Certificate
Face Type

Face Type for Lapped Joint Flange

  • Tongue and Groove Face
  • Flat Face
  • Ring-Joint Face
  • Lap-Joint Face
  • Raised face
  • Male/Female Face

Production Technique

Production Technique of Carbon Steel Lap Joint Flange

  • Heat Treated
  • Machined
  • Forged




Dimensional Standards

Dimensional Standards of Back Up Flanges

  • UNI
  • AWWA
  • AS2129
  • JIS
  • SABS
  • GOST
  • EN

Marking and Packaging

Marking and Packaging of Raised Face Lap Joint Flange

  • Sizes
  • Pressure Rating Designation
  • Heat Code
  • Material Specification
  • Face Type
Inspection Criteria

Inspection Criteria of LJ Flange

  • Thickness of Weld End
  • Outer and Inner Dia of Lap Joint FF Flange Body
  • Hub Diameter of

Aesteiron Recent Export Orders

netherland
Supplied Stock Of Lap Joint Flange to Netherland

Supplied Stock Of Lap Joint Flange to Netherland

iceland
Exported Stainless Steel Lap Joint Flange to Iceland

Exported Stainless Steel Lap Joint Flange to Iceland

For Custom Sizes, Click Here.


Find Copper Nickel Lap Joint Flange Compatibility and Pressure Ratings

Lap Joint Flange Pressure Rating
ASME B16.5 Socket Weld Flange Pressure Rating in (PSIG)
Temp (F°) 600# 2500# 150# 1500# 300# 900# 400#
700 1060 4425 110 2655 530 1590 710
1000 170 715 20 430 85 255 115
750 1015 4230 95 2535 505 1520 675
200 1360 5655 260 3395 680 2035 905
950 275 1145 35 685 135 410 185
600 1135 4730 140 2840 570 1705 755
300 1310 5450 230 3270 655 1965 870
900 460 1915 50 1150 230 690 305
650 1100 4575 125 2745 550 1650 730
400 1265 5280 200 3170 635 1900 845
850 640 2655 65 1595 320 955 425
500 1205 5025 170 3015 605 1810 805
800 825 3430 80 2055 410 1235 550
-20 to 100 1480 6170 285 3705 740 2220 985

Manufacturer of ASME B16.5 Lap Joint Flange, Check LJRF Flange Dimensions

Dimensions of Lap Joint Stub End Flange

CL Class 600 Class 2500 Class 150 Class 1500 Class 300 Class 900
NO.
L		 4 4 4 4 4 4
THK
B		 14.3 30.2 11.2 22.3 14.3 22.3
DIA
L		 15.9 22.2 15.9 22.2 15.9 22.2
DIA
A		 38 43 30 38 38 38
DIA
H		 22 40 16 32 22 32
DIA
D		 95 135 90 120 95 120
DIA
K		 66.7 88.9 60.3 82.6 66.7 82.6

Carbon Steel Lap Joint Flange for Oil and Gas Industries
Applications of Lap Joint Flanges


Manufacturer of Raised Face Lap Joint Flange, Choose the Right Grade and Temperature Ratings

Temperature Range

Alloy GR. WNR UNS DIN Casting Lap Joint Flange Forged Lap Joint Flange Temp Range
Alloy Steel Lap Joint Flange AISI 4130 lap joint flanges  1.7218 G41300 – ASTM A217/M ASTM A182
  • 1650 to 1700°F
  • 899 to 927°C
Alloy Steel Chrome Moly Lap Joint Flange 5Cr-1/2Mo 1.7362 K41545 12CRMO195 ASTM A217 Gr C5 ASTM A182 Gr F5/F5a
  • High Temp Boiler/ Refinery Application
9Cr-1Mo-V 1.4903 X 10 CrMoVNb 9 1 A217-C12A A182 Grade F91
  • High Pressure Boilers
1.1/4Cr-1/2Mo 1.7335 K11572 13CRM044 ASTM A217 WC6 ASTM A182 Grade F11 cl2
  • 1100ºF
  • Up to 593ºC
9Cr-1Mo 1.7386 K90941 X 12 CrMo 9 1 A217-C12 A182 Grade F9
  • High Temp Erosive Refinery Application
2.1/4Cr-1Mo 1.7380 K21590 10CRM0910 ASTM A217 Gr WC9 ASTM A182 Gr F22 cl3
  • 1100ºF
  • Up to 593ºC
Moly Steel Lap Joint Flange C-1/2Mo 1.5415 K12822 15M03 ASTM A217-WC1 ASTM A182 Grade F1 cl2
  • 875ºF
  • Up to 470ºC*

Lap Joint Pipe Flanges Weight Chart
Nominal Size in
(Inches)		 DN
(MM)		 Flange Thick D
(MM)		 Flange Outer Dia
A (MM)		 Blind Flange Weight in (Kgs) Weld Neck Flange Weight in (Kgs) Slip on Flange Weight in (Kgs)
24 600 47.8 812.8 185.0 115 86.9
1/ 2 15 11.2 88.9 0.4 0.5 0.4
20 500 42.9 698.5 122.0 84.5 61.9
3/ 4 20 12.7 98.6 0.6 0.7 0.6
18 450 39.6 635 93.7 68.3 48.9
3 1/ 2 90 23.9 215.9 6.2 6.1 4.8
1 25 14.2 108 0.9 1 0.8
4 100 23.9 228.6 7.0 6.8 5.3
16 400 36.6 596.9 76.1 60.6 44.8
5 125 23.9 254 8.6 8.6 6.1
1 1/ 4 32 15.7 117.3 1.2 1.3 1
6 150 25.4 279.4 11.3 10.6 7.5
14 350 35.1 533.4 58.1 48.4 34.6
8 200 28.4 342.9 19.6 17.6 12.1
1 1/ 2 40 17.5 127 1.5 1.7 1.3
3 80 23.9 190.5 4.9 4.9 3.9
12 300 31.8 482.6 43.2 36.5 26.2
2 50 19.1 152.4 2.4 2.6 2.1
10 250 30.2 406.4 28.6 24 16.5
2 1/ 2 65 22.4 177.8 3.9 4.1 3.3
Carbon Steel Lap Joint Flange Size Chart
No. of Bolts
Size in (Inches) Sizes in (MM) 600 LBS 2500 LBS 150 LBS 1500 LBS 300 LBS 900 LBS 400 LBS
10 250 16 12 12 12 16 16 16
24 600 24 – 20 16 24 20 24
5 125 8 8 8 8 8 8 8
12 300 20 12 12 16 16 20 16
1/2 15 4 4 4 4 4 4 4
14 350 20 – 12 16 20 20 20
4 100 8 8 8 8 8 8 8
20 500 24 – 20 16 24 20 24
3/4 20 4 4 4 4 4 4 4
2 1/2 65 8 8 4 8 8 8 8
18 450 20 – 16 16 24 20 24
1 25 4 4 4 4 4 4 4
3 1/2 90 8 – 8  – 8  – 8
8 200 12 12 8 12 12 12 12
1 1/4 32 4 4 4 4 4 4 4
3 80 8 8 4 8 8 8 8
6 150 12 8 8 12 12 12 12
1 1/2 40 4 4 4 4 4 4 4
2 50 8 8 4 8 8 8 8
16 400 20 – 16 16 20 20 20
Lap Joint Stub End Flange Dimensions
Dimensions of Lap Joint Stub End Flange

NPS Dia of Holes Outside Dia (O) Radius (r) No. of Holes Thick (T) Length Thru Hub (Y) Bolt Circle (C) Hub Dia (X) Bore (B)
10 1.00 16.00 0.50 12 1.19 1.94 14.25 12.00 10.92
5 0.88 10.00 0.44 8 0.94 1.44 8.50 6.44 5.69
24 1.38 32.00 0.50 20 1.88 4.38 29.50 26.13 24.25
6 0.88 11.00 0.50 8 1.00 1.56 9.50 7.56 6.75
1/2 0.63 3.50 0.13 4 0.44 0.63 2.38 1.19 0.90
4 0.75 9.00 0.44 8 0.94 1.31 7.50 5.31 4.60
22 1.38 29.50 0.50 20 1.81 4.25 27.25 24.25 22.25
8 0.88 13.50 0.50 8 1.13 1.75 11.75 9.69 8.75
3/4 0.63 3.88 0.13 4 0.50 0.63 2.75 1.50 1.11
20 1.25 27.50 0.50 20 1.69 4.06 25.00 22.00 20.25
1 0.63 4.25 0.13 4 0.56 0.69 3.13 1.94 1.38
3 1/2 0.75 8.50 0.38 8 0.94 1.25 7.00 4.81 4.10
18 1.25 25.00 0.50 16 1.56 2.88 22.75 19.88 18.2
3 0.75 7.50 0.38 4 0.94 1.19 6.00 4.25 3.60
1 1/4 0.63 4.63 0.19 4 0.63 0.81 3.50 2.31 1.72
2 1/2 0.75 7.00 0.31 4 0.88 1.13 5.50 3.56 2.97
16 1.13 23.50 0.50 16 1.44 3.44 21.25 18.00 16.19
1 1/2 0.63 5.00 0.25 4 0.69 0.88 3.88 2.56 1.97
14 1.13 21.00 0.50 12 1.38 3.13 18.75 15.75 14.18
2 0.75 6.00 0.31 4 0.75 1.00 4.75 3.06 2.46
12 1.00 19.00 0.50 12 1.25 2.19 17.00 14.38 12.92
Raised Face Lap Joint Flange Height
Classes Height
Class 400 1/4″
Class 2500 1/4″
Class 150 1/6″
Class 600 1/4″
Class 1500 1/4″
Class 300 1/6″
Class 900 1/4″
ASME B16.5 Lap Joint Pipe Flanges Face Types
ASME B16.5 Lap Joint Pipe Flanges Face Types

Stainless Steel Lap Joint Flange Dimensional Tolerances
Drilling Length thru Hub Wall Thick (W.T) Bolt Circle (B.C.) Eccentricity
  • 1.6 (MM) (Bolt circle)
  • ± 0.8 (MM) (Spacing of bolt hole)
  • ≤ 18 = + 3.2 (MM) / – 0.8 (MM)
  • ≥ 20 = + 4.8 (MM) / – 1.6 (MM)
  • ≤ 18 = + 3.2 (MM) / – 0
  • ≥ 20 = + 4.8 (MM) / – 0
  • ≤ 2.1/2 = 0.8 (MM) (Max)
  • ≥ 3 = 1.6 (MM) (Max)
Contact Face Dia
  • (RF) 1.6 (MM) = ± 0.8 (MM) to 6.35 (MM)
  • Male & Female and Tongue & Groove = ± 0.4 (MM)
Outer Diameter Counter Bore Dia Outer Diameter of Hub Inner Diameter
  • ≤ 24 = 1.6 (MM)
  • > 24 = ± 3.2 (MM)
  • Same as for I.D. (Inside Dia)
  • ≤ 12 = + 2.4 (MM) / – 1.6 (MM)
  • ≥ 14 = ± 3.2 (MM)
  • ≤ 10 = ± 0.8 (MM)
  • ≥ 12 = + 1.6 (MM) / – 0 (MM)
Weight of EN 1092-1 TYPE 02 Lap Joint Flange
DN PN 16
(KG)		 PN 40
(KG)		 PN 6
(KG)		 PN 25
(KG)		 PN 10
(KG)
50 2.53 2.65 1.42 2.52 2.52
200 – – 6.51 – 8.87
10 0.678 0.591 0.345 0.591 0.591
150 7.81 – 4.53 – 6.89
40 2.15 2.02 1.29 2.02 2.02
15 0.768 0.654 0.388 0.654 0.654
125 6.30 – 4.12 5.21 5.21
20 1.09 0.909 0.568 0.909 0.909
100 4.62 5.87 3.10 4.20 4.20
25 1.30 1.08 0.688 1.08 1.08
80 3.92 4.18 2.84 3.48 3.48
32 1.91 1.77 1.12 1.77 1.77
65 3.03 3.36 1.76 3.05 3.05
Isometric Symbol of Lap Joint Pipe Flange
Isometric Symbol of Lap Joint Pipe Flange

Lap Joint Flange Material and Grades




Advantages of LJRF Flange
  • Thermal Expansion
  • Easy to Install
  • Flexibility
  • Inspection and Maintenance
  • Cost-effective
  • Strong and Durable
  • Corrosion Resistance
Lap Joint Flange HSN Code
Grade HSN Code
Lap Joint Flange 73072100 HS

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Why Aesteiron?

  • Distributor of USA, Japan and European Mills for Seamless Pipes and Steel Plates
  • Only Indian Company who has Weekly 3 Shipment to Saudi Arabia, Netherlands and USA
  • Vast experience as an Exporter of Industrial Long and Flat Products in India
  • Keep Ex-Stock of Nickel Alloys Make Special Metals, USA
  • Supply Europe, USA, Japan and Korea Origin Material
  • Local Distributor in Houston (USA)
  • 350+ Clients in Atlanta, California, Wisconsin, Texas, Kansas, Indiana, Florida
  • Get Price, availability, and shipping information Via WhatsApp and Email in Maximum 2 Hrs
  • DFARS compliant Pipe, Fittings and Sheets for oil and gas companies
  • Weekly Delivery in Tanzania, Sharjah, Dubai, Qatar and Cape Town
  • Special Price for Steel Suppliers, Wholesalers, Importer, Stockholder, Traders and Stockist in USA
  • Known for Best quality of Steel Fittings, Flanges and Pipes
  • Offer MTC 3.1/3.2 and Third Party Inspection at Lowest Price
  • Specialized in supplying Large Diameter Steel Pipes with wear-resistant coating
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Conclusion

There Are Numerous Varieties of Lap Joint Flange Types, Faces, and Pressure Ratings to Choose From. Utilized Mostly in the Oil and Gas and Petrochemical Industries.

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