
ASME B16.5 Flange Overview
| ASME B16.5 Flange Classification | LJ (Lapped) flange, TH (Threaded) flange, SO (Slip-On) flange, WN (Weld Neck) flange, BL (Blind) flange, SW (Socket Weld) flange |
|---|---|
| ANSI B16.5 Flange Sizes and No. of Bolts | 1/2 -3″: 4 Bolts, 3 1/2-8″: 8 Bolts, 10-14″: 12 Bolts, 16-24″: 20 Bolts |
| Standard | ANSI/ ASME B16.5, B16.47, B16.36 |
Check ANSI B16.5 Class 150 Flange Dimension And Applications

Pressure Rating of ANSI B16.5 Flange
| Temperature (°F) | 2500 | 1500 | 900 | 600 | 300 | 400 | 150 |
|---|---|---|---|---|---|---|---|
| 1000 | 2685 | 1610 | 965 | 645 | 325 | 430 | 20 |
| 950 | 3120 | 1870 | 1125 | 750 | 375 | 500 | 35 |
| 900 | 3200 | 1920 | 1150 | 770 | 385 | 510 | 50 |
| 850 | 3240 | 1945 | 1165 | 780 | 390 | 520 | 65 |
| 800 | 3280 | 1970 | 1180 | 790 | 395 | 525 | 80 |
| 750 | 3320 | 1990 | 1195 | 795 | 400 | 530 | 95 |
| 700 | 3360 | 2015 | 1210 | 805 | 405 | 540 | 110 |
| 650 | 3400 | 2040 | 1225 | 815 | 410 | 545 | 125 |
| 600 | 3460 | 2075 | 1245 | 830 | 415 | 555 | 140 |
| 500 | 3640 | 2185 | 1310 | 875 | 435 | 585 | 170 |
| 400 | 3920 | 2350 | 1410 | 940 | 470 | 630 | 180 |
| 300 | 4400 | 2640 | 1585 | 1055 | 530 | 705 | 205 |
| 200 | 5000 | 3000 | 1800 | 1200 | 600 | 800 | 235 |
| -20 to 100 | 6000 | 3600 | 2160 | 1440 | 720 | 960 | 275 |
ASME B16.5 Pipe Flange Manufacturers in UAE Can Supply to Your Specifications At a Great Deal
ASME B16.5 Flange Specification

Dimensions: ASME B16.5
ASME B16.5: NPS ½” to 24″
Pressure Rating: 150# to 2500#
Faces: Groove, Raised Face (RF), Ring Type Joint (RTJ), Tongue & Groove, Flat Face (FF), Lap-Joint Face (LJF)
Get Quote Directly from ASME B16.5 Flange suppliers
100% Tested ASME B16.5 Flange with MTC EN 10204/3.1
Request Pricing Directly From ASME B16.5 class 150 Flange Manufacturers For The Lowest Price And Ensured High Quality of ANSI B16.5 Class 300 Flange in Dubai
Bolt Chart of ASME 16.5 Blind Flange
| Nominal Pipe Size (Inches) | RF Height | 24 | 20 | 18 | 16 | 14 | 12 | 10 | 8 | 6 | 5 | 4 | 3 | 2 1/2 | 2 | 1 1/2 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Class 2500 | Number of Bolts | 12 | 12 | 12 | 12 | 8 | 8 | 8 | 8 | 4 | 4 | ||||||
| Diameter of Bolts | 2 3/4 | 2 1/2 | 2 | 2 | 1 1/2 | 1 1/4 | 1 1/8 | 1 1/8 | 7/8 | ||||||||
| Stud Bolt Length | 21.25 | 19.25 | 15.00 | 13.50 | 11.75 | 10.00 | 7.75 | 7.00 | 6.75 | 6.00 | 5.00 | ||||||
| Class 1500 | Number of Bolts | 16 | 16 | 16 | 16 | 16 | 16 | 12 | 12 | 12 | 8 | 8 | 8 | 8 | 4 | 4 | |
| Diameter of Bolts | 3 1/2 | 3 | 2 3/4 | 2 1/2 | 2 1/4 | 2 | 1 7/8 | 1 5/8 | 1 3/8 | 1 1/2 | 1 1/8 | 1 1/8 | 1 1/8 | 1 | 7/8 | ||
| Stud Bolt Length | 24.25 | 21.25 | 19.50 | 17.50 | 16.00 | 14.75 | 13.25 | 11.50 | 10.25 | 9.75 | 7.75 | 6.25 | 5.75 | 5.50 | 5.00 | 4.50 | |
| Class 900 | Number of Bolts | 24 | 24 | 20 | 20 | 20 | 20 | 16 | 12 | 12 | 12 | 8 | 8 | 8 | 8 | 4 | 4 |
| Diameter of Bolts | 1 7/8 | 1 5/8 | 1 5/8 | 1 1/2 | 1 3/8 | 1 1/4 | 1 1/4 | 1 1/8 | 1 | 1 | 7/8 | 3/4 | 3/4 | 5/8 | 3/4 | 5/8 | |
| Stud Bolt Length | 17.25 | 13.75 | 12.75 | 11.25 | 10.75 | 10.00 | 9.25 | 8.75 | 7.50 | 7.50 | 6.75 | 4 3/4 | 4 1/4 | 4 1/4 | 3 3/4 | 3 1/2 | |
| Class 600 | Number of Bolts | 24 | 24 | 20 | 20 | 20 | 20 | 16 | 12 | 12 | 8 | 8 | 8 | 8 | 4 | 4 | |
| Diameter of Bolt | 1 5/8 | 1 1/2 | 1 3/8 | 1 1/4 | 1 1/4 | 1 1/8 | 1 | 7/8 | 3/4 | 3/4 | 3/4 | 3/4 | 3/4 | 5/8 | 3/4 | 5/8 | |
| Stud Bolt Length | 17.25 | 13.75 | 12.75 | 11.25 | 10.75 | 10.00 | 9.25 | 8.75 | 7.50 | 7.50 | 6.75 | 4 3/4 | 4 1/4 | 4 1/4 | 3 3/4 | 3 1/2 | |
| Class 400 | Number of Bolts | 24 | 24 | 24 | 20 | 20 | 16 | 16 | 12 | 12 | 8 | 8 | 8 | 8 | 4 | 4 | |
| Diameter of Bolt | 1 1/2 | 1 3/8 | 1 3/8 | 1 1/4 | 1 1/4 | 1 1/8 | 1 | 7/8 | 3/4 | 3/4 | 3/4 | 3/4 | 3/4 | 5/8 | 3/4 | 5/8 | |
| Stud Bolt Length | 9 1/2 | 9 | 8 3/4 | 8 1/4 | 8 | 7 1/2 | 6 3/4 | 6 | 5 3/4 | 5 1/2 | 5 1/2 | 4 3/4 | 4 1/4 | 4 1/4 | 3 3/4 | 3 1/2 | |
| Class 300 | Number of Bolts | 24 | 24 | 24 | 20 | 16 | 16 | 16 | 12 | 12 | 8 | 8 | 8 | 8 | 4 | 4 | |
| Diameter of Bolt | 1 1/2 | 1 1/4 | 1 1/4 | 1 1/4 | 1 1/8 | 1 1/8 | 1 | 7/8 | 3/4 | 3/4 | 3/4 | 3/4 | 3/4 | 5/8 | 3/4 | 5/8 | |
| Stud Bolt Length | 9 | 8 | 7 3/4 | 7 1/2 | 7 | 6 3/4 | 6 1/4 | 5 1/2 | 4 3/4 | 4 3/4 | 4 1/4 | 4 | 3 1/2 | 3 1/2 | 3 1/4 | 3 | |
| Machine Bolt Length | 6 3/4 | 6 1/2 | 6 1/4 | 5 3/4 | 5 1/2 | 4 3/4 | 4 1/4 | 4 1/4 | 3 3/4 | 3 3/4 | 3 1/2 | 3 1/4 | 3 | 3 | 2 3/4 | 2 1/2 | |
| Class 150 | Number of Bolts | 20 | 20 | 16 | 16 | 12 | 12 | 12 | 8 | 8 | 8 | 8 | 4 | 4 | 4 | 4 | 4 |
| Diameter of Bolt | 1 1/4 | 1 1/8 | 1 1/8 | 1 | 1 | 7/8 | 7/8 | 3/4 | 3/4 | 3/4 | 5/8 | 5/8 | 5/8 | 5/8 | 1/2 | 1/2 | |
| Stud Bolt Length | 5 3/4 | 5 1/4 | 5 1/4 | 4 3/4 | 4 1/2 | 4 1/4 | 4 | 3 3/4 | 3 1/2 | 3 1/2 | 3 1/2 | 3 1/4 | 3 1/4 | 2 3/4 | 2 3/4 | 2 1/2 | |
| Machine Bolt Length | 6 | 5 1/2 | 5 | 4 1/2 | 4 1/2 | 4 | 4 | 3 1/2 | 3 1/4 | 3 1/4 | 3 | 3 | 2 3/4 | 2 1/2 | 2 1/4 | 2 |
| Duplex Steel ASME B16.5 Flange | Duplex 2205, UNS S31803 (DIN 1.4462), UNS S32205, Super Duplex 2507, UNS S32750 (DIN 1.4410), UNS S32760, ASTM A182 Grade F51, F52, F53, F54, F55, F57, F59, F60, F61, SMO 254, AL6xn, 6Mo, UNS S31254, DIN 1.4547 |
|---|---|
| Nickel Alloy ANSI B16 5 Flange | ASTM B564 / ASME SB 564M, Nickel 200, Alloy 201, Nickel 205LC, Nickel 205 |
| Inconel ANSI B16.5 Flange |
ASME SB 564 UNS N06600 (Alloy 600) W.Nr. 2.4816, UNS N06601 (Alloy 601) W.Nr. 2.4851, UNS N06617 (Alloy 617) W.Nr. 2.4663a, ASTM B564 UNS N06625 (Alloy 625) W.Nr. 2.4856, UNS N06626 (Alloy 625LCF) W.Nr. 2.4856, UNS N06686 (Alloy 686) W.Nr. 2.4606, UNS N06690 (Alloy 690) W.Nr. 2.4642, UNS N06693 (Alloy 693), UNS N09706 (Alloy 706), UNS N07718 (Alloy 718) W.Nr. 2.4668, UNS N07719 (Alloy 718SPF), UNS N07725 (Alloy 725), UNS N07740 (Alloy 740H), UNS N07750 (Alloy X-750) W.Nr. 2.4669, UNS N07751 (Alloy 751), UNS N07754 (Alloy MA754), UNS R30783 (Alloy 783) |
| Incoloy ANSI B16 5 Class 150 Flange | ASTM B564 UNS N08825, UNS N09925 |
| Incoloy Alloy 20 ASME B16 5 Class 150 Flange | ASTM B462 UNS N08020 |
| Hastelloy B16 5 Flanges | ASTM B564 UNS N10276 (Hastelloy C276), UNS N06022 (Hastelloy C22), UNS N06200 (C2000), UNS N06002 (X), UNS N10001 (B), UNS N10665 (B2), UNS N10675 (B3), UNS N06035 (G35), UNS N06985 (G3), UNS N06030 (G30), UNS N06455 (C4), UNS N07022 (C-22HS), UNS N10003 (N), UNS N06635 (S) |
| Monel ANSI B16 5 150 LBS Flanges | ASTM B564 UNS N04400, UNS N05500 |
| SS 904L ASME B16 5 Pipe Flange | UNS N08904 |
| Stainless Steel ANSI 300 Flange | ASTM A182 Gr 304, 304L, 316, 316L, 310, 310S, 317L, 316Ti, 321, 347, 347H, UNS S66286 |
| Carbon Steel ASME 16.5 Flange | ASTM A105, A105N, A350 LF2 (LTCS), LF3, AISI 4130, AISI 4140, AISI 4340, AISI 4145 |
| Carbon Steel ASTM A694 ASME B16 5 Flanges | A694 F42, F46, F52, F60, F65, F706 |
| Alloy Steel ANSI B16.5 Flange | ASTM A182 F5, F9, F11, F22, F91 |
| Cupro Nickel ANSI B16 5 Class 150 Flange | Copper Nickel 90/10 and Cuni 70/30 |
| Titanium ASME B16 5 Class 150 Flange | Titanium Gr 2, Gr 5 |
Buy All Types of B16.5 Plate Flange as Per ASME B16.5, Check Manufacturing Methods, Advantages, And Disadvantages
Different types of ASME B16.5 Flanges

B16.5 Reducing flange

ASME b16.5 class 150 Tongue and groove flange

B16.5 Slip On flange

ANSI B16.5 Spectacle Blind flange

ASME b16.5 class 150 Threaded flange

Stainless steel ANSI b16.5 Spade flange

ASME b16.5 Lap Joint flange

B16.5 Flat Face flange

ASME b16.5 Plate flange

ASME b16.5 class 400 Raised Face flange

ANSI B16.5 Ring Spacer flange

Stainless steel ANSI b16.5 Ring Type Joint flange

ASME b16.5 class 150 Forged flanges

ASME b16.5 class 400 Square flange

ASME b16.5 Blind flange

ASME b16.5 class 150 Weldo flange

Stainless steel ANSI b16.5 Socket Weld flange

Stainless steel ANSI b16.5 Pad flanges

ASA B16.5 High Hub Blind flanges

ANSI B16.5 Swivel flanges

ASA B16.5 Long Weld Neck flanges

ANSI B16.5 Weld Neck flanges

ASME b16.5 class 400 Expander flanges

ASA B16.5 Orifice flanges
Check Out Your Nearby Locations For Fastest Deliveries
| Country | Cities |
|---|---|
| Netherlands | The Hague |
| Belgium | Meeuwen-Gruitrode |
| Netherlands | Amsterdam |
| Belgium | Antwerp |
| Netherlands | Haarlem |
| Belgium | Brussels |
| Belgium | Seraing |
| Belgium | Ghent |
| Belgium | Leuven |
| Netherlands | Eindhoven |
| Belgium | Westerlo |
| Netherlands | Rotterdam |
Check ASME B16.5 Class 400 Flange Dimensions, Buy ASA B16.5 Flange From Verified Suppliers In Middle East Countries
ANSI B16 5 class 1500 Flange Serrated Finish Size Chart
| NPS | B | A |
|---|---|---|
| 24 | 6.0 | 12.0 |
| 22 | 6.0 | 12.0 |
| 20 | 6.0 | 12.0 |
| 18 | 6.0 | 12.0 |
| 16 | 4.5 | 10.0 |
| 14 | 4.5 | 8.0 |
| 12 | 4.5 | 8.0 |
| 10 | 4.5 | 8.0 |
| 8 | 4.5 | 8.0 |
| 6 | 3.0 | 6.0 |
| 5 | 3.0 | 6.0 |
| 4 | 3.0 | 6.0 |
| 3 | 1.5 | 4.5 |
| 2-1/2 | 1.5 | 3.0 |
| 2 | 1.5 | 3.0 |
| 1-1/2 | 1.5 | 3.0 |
| 1 | 1.5 | 3.0 |
Face Types of ASME B16 5 class 300 Flange
- Raised Face
- Spigot
- Tongue Face
- O-Ring Groove
- Grooved Face
- Ring Recess
- Flat Face
Surface Roughness Conversion Chart of ANSI B16 5 150 LBS Flanges
| Cut-off Length | CLA (N) | Ra (micrometers) | N | Ra (microinches) | RMS | Rt | |
|---|---|---|---|---|---|---|---|
| inch | mm | – | – | – | – | – | – |
| 0.003 | 0.08 | 1 | 0.025 | 1 | 1 | 1.1 | 0.3 |
| 0.01 | 0.25 | 2 | 0.05 | 2 | 2 | 2.2 | 0.5 |
| 0.01 | 0.25 | 4 | 0.10 | 3 | 4 | 4.4 | 0.8 |
| 0.01 | 0.25 | 8 | 0.20 | 4 | 8 | 8.8 | 1.2 |
| 0.01 | 0.25 | 16 | 0.40 | 5 | 16 | 17.6 | 2 |
| 0.03 | 0.80 | 32 | 0.80 | 6 | 32 | 32.5 | 4 |
| 0.03 | 0.80 | 63 | 1.60 | 7 | 63 | 64.3 | 8 |
| 0.10 | 2.50 | 125 | 3.20 | 8 | 125 | 137.5 | 13 |
| 0.10 | 2.50 | 250 | 6.30 | 9 | 250 | 275.0 | 25 |
| 0.10 | 2.50 | 500 | 12.50 | 10 | 500 | 550.0 | 50 |
| 0.30 | 8.00 | 1000 | 25.00 | 11 | 1000 | 1100.0 | 100 |
| 0.30 | 8.00 | 2000 | 50.00 | 12 | 2000 | 2200.0 | 200 |
ANSI B16 5 Class 150 Flange Face Finish
- Concentric Serrated
- Spiral Serrated
- Smooth Finish
- Stock Finish
Warehouse Locations of Partner Suppliers
| Middle East countries | Qatar, Lebanon, Bahrain, Saudi, Kuwait, UAE, Jordan, Iraq, Syria, Iran, Yemen |
|---|---|
| Africa | Nigeria, South Africa, Kenya, Morocco, Egypt, Tunisia, Algeria |
| MENA | Morocco, Libya, Algeria, Tunisia, Egypt, Israel, Palestine |
What are the Uses and Application of ANSI B16.5 Class 150 Slip on Flange?
- Petrochemical Industry
- Offshore platforms
- Boiler systems
- Water treatment
- Power plants
Check Which Origin is Best To Buy ASME 16.5 Slip on Flange in Dubai?
Indian origin is best to buy ASME 16.5 flanges in Dubai.
ASME B16.5 Flange Bolt Hole Orientation

How to Choose the Right ANSI B16 5150 Flange Size in Oil and Gas Industry?
To choose the right ANSI B16 5 150 flange size in oil and gas industry these points must be remembered:
- Facing Type Inspection
- Certificat Verification
- Check NPS
- Check Pressure Rating
- Verify Material Compatibility
- Check Bolt Hole Diameters
Sales Agents in Following Locations
| Muscat | Riyadh | Dubai | Ras Al Khaimah |
|---|---|---|---|
| Sharjah | Fujairah | Umm Al Quwain | Doha |
| Saudi Arabia | Al Jubail | Abu Dhabi | Ajman |
ANSI B16 5 Class 150 Flange Weight Chart
| NPS | Weld Neck | Blind | Slip On | Thd | Lap Joint | Socket Weld |
|---|---|---|---|---|---|---|
| 24 | 120.6 | 193.5 | 99 | 99 | 123.8 | 99 |
| 22 | 101.3 | 159.8 | 83.3 | 83.3 | 110.3 | 83.3 |
| 20 | 88.7 | 128.3 | 74.3 | 74.3 | 87.8 | 74.3 |
| 18 | 74.3 | 99 | 58.5 | 58.5 | 72 | 58.5 |
| 16 | 63 | 81 | 47.7 | 44.1 | 63 | 44.1 |
| 14 | 51.3 | 63 | 40.5 | 40.5 | 47.3 | 40.5 |
| 12 | 39.6 | 55.4 | 28.8 | 28.8 | 28.8 | 28.8 |
| 10 | 24.3 | 31.5 | 19.4 | 19.4 | 19.4 | 19.4 |
| 8 | 18.9 | 21.2 | 13.5 | 13.5 | 13.5 | 13.5 |
| 6 | 11.7 | 12.2 | 8.6 | 8.6 | 8.6 | 8.6 |
| 5 | 9.5 | 9 | 6.8 | 6.8 | 6.8 | 6.8 |
| 4 | 7.4 | 7.7 | 5.9 | 5.9 | 5.9 | 5.9 |
| 3 | 5.2 | 4.1 | 4.1 | 4.1 | 4.1 | 4.1 |
| 2½ | 4.5 | 3.2 | 3.6 | 3.6 | 3.6 | 3.6 |
| 2 | 2.7 | 2.3 | 2.3 | 2.3 | 2.3 | 2.3 |
| 1½ | 1.8 | 1.8 | 1.4 | 1.4 | 1.4 | 1.4 |
| 1 | 1.4 | 0.9 | 0.9 | 0.9 | 0.9 | 0.9 |
Manufacturing Methods of ANSI B16.5 Slip on Flanges
- Casting
- Cutting
- Forging
ASME Class 1500 Flange Gasket Chart
| NPS | Gasket O.D.(Inches) | Gasket I.D.(Inches) |
|---|---|---|
| 24 | 28 1/4 | 24 |
| 22 | 26 | 22 |
| 20 | 23 7/8 | 20 |
| 18 | 21 5/8 | 18 |
| 16 | 20 1/4 | 16 |
| 15 | 19 | 15 |
| 14 | 17 3/4 | 14 |
| 12 | 16 1/8 | 12 3/4 |
| 10 | 13 3/8 | 10 3/4 |
| 8 | 11 | 8 5/8 |
| 7 | 10 | 7 5/8 |
| 6 | 8 3/4 | 6 5/8 |
| 5 | 7 3/4 | 5 9/16 |
| 4 | 6 7/8 | 4 1/2 |
| 3 | 5 3/8 | 3 1/2 |
| 2 1/2 | 4 7/8 | 2 7/8 |
| 2 | 4 1/8 | 2 3/8 |
| 1 1/2 | 3 3/8 | 1 29/32 |
| 1 | 2 5/8 | 1 5/16 |
Top 10 Factors Affecting Selection of ANSI B16 5 300 Flange?
- Operating pressure and temperature
- Material
- NPS
- Gasket type
- Bolt diameter
- Thermal expansion effects
- Ease to maintain
- Cost effective
- Service conditions
Testing Methods of ANSI B16 5 Flange

Sizes of ASME B16 5 Class 150 Weld Neck Flange
| NPS | Weld Neck Weight |
|---|---|
| 24 | 261 |
| 22 | 209.3 |
| 20 | 180 |
| 18 | 144 |
| 16 | 112.5 |
| 14 | 92.7 |
| 12 | 63.9 |
| 10 | 45 |
| 8 | 31.1 |
| 6 | 20.3 |
| 5 | 16.2 |
| 3 | 8.1 |
| 4 | 11.9 |
| 2½ | 5.4 |
| 2 | 4.1 |
| 1½ | 3.2 |
| 1 | 1.8 |
Storage Sites of Partner Suppliers
| City | Region | Country |
|---|---|---|
| Dubai | Middle East | United Arab Emirates |
| Abu Dhabi | Middle East | United Arab Emirates |
| Dammam | Middle East | Saudi Arabia |
| Riyadh | Middle East | Saudi Arabia |
| Doha | Middle East | Qatar |
| Abuja | Africa | Nigeria |
| Kuwait City | Middle East | Kuwait |
| Jeddah | Middle East | Saudi Arabia |
| Cairo | MENA | Egypt |
| Casablanca | MENA | Morocco |
| Johannesburg | Africa | South Africa |
| Cape Town | Africa | South Africa |
| Lagos | Africa | Nigeria |
Thread Types of ASME 16.5 Threaded Flange
- NPT
- BSPT
- MNPT
- BSPP
- FNPT
Readily Available Stock Of ASME B16.5 Flange


Table of Content