ASME B16.5 Flange

Stainless Steel Class 300 Flanges Manufacturer in India, View ANSI B16.5 Flange Rating

A flange is a method used to connect pipes, valves, and other equipment in a piping system. The ASME B16.5 Flange is restricted to flanged fittings, which are made from forged materials or cast. The dimension of a flange depends on the pipe and the pressures its walls can withstand. A Carbon Steel Flange is made up of high amounts of carbon. After treating it with heat, the carbon flange will become stronger, harder, and will increase weldability. We are one of the top ASME B36.19 Flange manufacturers in India who focus on creating high-quality products at the most reasonable prices.

Check b16.5 blind flange Dimension In MM, We provide ASME B16.5 Class 300 Flange Expert Cutting Service

The Stainless Steel Class 300 Flange is made up of more metal as compared to other grades. As a result of this, the 300 flanges can withstand greater pressures. The stainless steel used in this construction makes it resistant to corrosion and extreme temperatures. The ASME B16 5 Class 600 Flange on, the other hand, is fitted either by welding or screwing it. These flanges depend on the material, which is used to prepare them and will differ in properties.

We use the best raw material while preparing ASME B16.5 Flange Material using innovative technology following international and local standards. Flanges have a lot of applications in many categories. The B16.5 Industrial Pipe Flange is widely used in chemical, petroleum, paper, and pulp, and different piping systems to transport fluids and gases. We can also customize all our ASME B16.5 Flanges as per your requirements. If you have any questions regarding our flanges, contact us to know more.

ASME B16.5 Flanges

Specification List of ASME B16.5 Flange

Size Chart 1/2" (15 NB) to 48" (1200NB) DN10~DN5000
JIS 16 K, 5K, 10 K, 30 K, 20 K, 40 K, 63 K
UNI / DIN 10Bar 6Bar 25Bar 16Bar 40Bar
Pressure Rating ANSI 2500 LBS, 600 LBS, 150 LBS, 900 LBS, 300 LBS, 1500 LBS
Production technique Heat treated, Forged and machined
Connect Type/ Flange Face Type Large Tongue & Groove, Small Tongue, Small Male-Female (SMF), Flat Face (FF), Lap-Joint Face (LJF), Ring Type Joint (RTJ), Raised Face (RF), Large Male-Female (LMF), Groove
Coating Oil Black Paint, Anti-rust Paint, Cold and Hot Dip Galvanized, Zinc Plated, Yellow Transparent
Most common types Forged / Threaded / Screwed / Plate
Export to Ireland, Brazil, Thailand, Egypt, Oman, Dubai, Singapore, Indonesia, Ukraine, Korea, Iran, India, Saudi Arabia, Spain, Canada, USA, Peru, etc
Test X-ray detector, UI trasonic flaw detector, Direct-reading Spectrograph, Magnetic particle detector, Hydrostatic testing machine
Equipment Pushing Machine, electric bevelling machine, Press machine, Bending machine, Sand-blasting machine etc
Origin West Europe / Indian / USA / Japan / Korean
Standards ASME, BS, API605, GOST, JISB2220, ANSI/ASME B16.5, ISO70051, API7S-15, API7S-43, BS 10, B16.47 Series A & B, B16.48, DIN, EN, BS1560-3.1, BS4504, MSS S44, EN-1092, ASME/ANSI B16.5/16.36/16.47A/16.47B, DIN, ANSI, EN1092
Special design

As per your drawing

AS, ANSI, BS, DIN and JIS
15 NB (1/2") to 200 NB (8")
Equal and Reducing Configurations

Various Types of ASME B16 5 Class 600 Flange

Check Price of ANSI B16.5 Flange

ASME B16.5 Flange Price in India ANSI B16.5 Flange Price in INR ASME B16.5 Flange Price in USD ASME B16.5 Class 300 Flange Price in UAE Dirham
1.1/2NB 300LB SCH XS WELD NECK FLANGE ASTM/ASME SA 105N ASME B16.5 Rs. 2,332 31.12 USD UAE Dirham 114.32
FLANGE 1/2 300 SCH 160 WNRF A105N ASME B16.5 Rs. 830 11.08 USD UAE Dirham 40.69

Contact us today For Buy ASME B16 5 Class 600 FlangeWith Low Price In India, Specification Of Ansi B16.5 Class 150 Flange

Ansi B16 5 Class 150 Dimensions

Flange Dimensions

Nominal Size Outside Diameter (OD) Min. Thickness (T) RF Dia. (R) No. of Bolt Holes Diameter of Holes Bolt Circle (BC) SO Bore ID (SB) WN Bore ID (WB) Dia. Hub Base (HB) Dia. of Hub Top (HT) SO LTH (SL) WN LTH (WL)
12 3.50 0.38 1.38 4 0.62 2.38 0.88 0.62 1.19 0.84 0.56 1.81
34 3.88 0.44 1.69 4 0.62 2.75 1.09 0.82 1.50 1.05 0.56 2.00
1 4.25 0.50 2.00 4 0.62 3.12 1.36 1.05 1.94 1.32 0.62 2.12
114 4.62 0.56 2.50 4 0.62 3.50 1.70 1.38 2.31 1.66 0.75 2.19
112 5.00 0.62 2.88 4 0.62 3.88 1.95 1.61 2.56 1.90 0.81 2.38
2 6.00 0.69 3.62 4 0.75 4.75 2.44 2.07 3.06 2.38 0.94 2.44
212 7.00 0.81 4.12 4 0.75 5.50 2.94 2.47 3.56 2.88 1.06 2.69
3 7.50 0.88 5.00 4 0.75 6.00 3.57 3.07 4.25 3.50 1.12 2.69
312 8.50 0.88 5.50 8 0.75 7.00 4.07 3.55 4.81 4.00 1.19 2.75
4 9.00 0.88 6.19 8 0.75 7.50 4.57 4.03 5.31 4.50 1.25 2.94
5 10.00 0.88 7.31 8 0.88 8.50 5.66 5.05 6.44 5.56 1.38 3.44
6 11.00 0.94 8.50 8 0.88 9.50 6.72 6.07 7.56 6.63 1.50 3.44
8 13.50 1.06 10.62 8 0.88 11.75 8.72 7.98 9.69 8.63 1.69 3.94
10 16.00 1.12 12.75 12 1.00 14.25 10.88 10.02 12.00 10.75 1.88 3.94
12 19.00 1.19 15.00 12 1.00 17.00 12.88 12.00 14.38 12.75 2.12 4.44
14 21.00 1.31 16.25 12 1.12 18.75 14.14 13.25 15.75 14.00 2.19 4.94
16 23.50 1.38 18.50 16 1.12 21.25 16.16 15.25 18.00 16.00 2.44 4.94
18 25.00 1.50 21.00 16 1.25 22.75 18.18 17.25 19.88 18.00 2.62 5.44
20 27.50 1.62 23.00 20 1.25 25.00 20.20 19.25 22.00 20.00 2.81 5.62
22 29.50 1.75 25.25 20 1.38 27.25 22.22 21.25 24.25 22.00 3.07 5.82
24 32.00 1.81 27.25 20 1.38 29.50 24.25 23.25 26.12 24.00 3.19 5.94

Asme B16.5 Class 300 Flange Dimensions

Flange Dimensions

Nominal Size Outside Diameter (OD) Min. Thickness (T) RF Dia. (R) No. of Bolt Holes Diameter of Holes Bolt Circle (BC) SO Bore ID (SB) WN Bore ID (WB) Dia. Hub Base (HB) Dia. Hub Top (HT) SO LTH (SL) WN LTH (WL)
12 3.75 0.50 1.38 4 0.63 2.62 0.88 0.62 1.50 0.84 0.81 2.00
34 4.62 0.56 1.69 4 0.75 3.25 1.09 0.82 1.88 1.05 0.94 2.19
1 4.88 0.62 2.00 4 0.75 3.50 1.36 1.05 2.12 1.32 1.00 2.38
114 5.25 0.69 2.50 4 0.75 3.88 1.70 1.38 2.50 1.66 1.00 2.50
112 6.12 0.75 2.88 4 0.88 4.50 1.95 1.61 2.75 1.90 1.13 2.63
2 6.50 0.81 3.62 8 0.75 5.00 2.44 2.07 3.31 2.38 1.25 2.69
212 7.50 0.94 4.12 8 0.88 5.88 2.94 2.47 3.94 2.88 1.44 2.94
3 8.25 1.06 5.00 8 0.88 6.62 3.57 3.07 4.62 3.50 1.63 3.06
312 9.00 1.12 5.50 8 0.88 7.25 4.07 3.55 5.25 4.00 1.69 3.13
4 10.00 1.19 6.19 8 0.88 7.88 4.57 4.03 5.75 4.50 1.82 3.32
5 11.00 1.31 7.31 8 0.88 9.25 5.66 5.05 7.00 5.56 1.94 3.82
6 12.50 1.38 8.50 12 0.88 10.62 6.72 6.07 8.12 6.63 2.00 3.82
8 15.00 1.56 10.62 12 1.00 13.00 8.72 7.98 10.25 8.63 2.38 4.32
10 17.50 1.81 12.75 16 1.12 15.25 10.88 10.02 12.62 10.75 2.56 4.56
12 20.50 1.94 15.00 16 1.25 17.75 12.88 12.00 14.75 12.75 2.82 5.06
14 23.00 2.06 16.25 20 1.25 20.25 14.14 13.25 16.75 14.00 2.94 5.56
16 25.50 2.19 18.50 20 1.38 22.50 16.16 15.25 19.00 16.00 3.19 5.69
18 28.00 2.31 21.00 24 1.38 24.75 18.18 17.25 21.00 18.00 3.44 6.19
20 30.50 2.44 23.12 24 1.38 27.00 20.20 19.25 23.12 20.00 3.69 6.32
22 33.00 2.57 25.25 24 1.63 29.25 22.22 21.25 25.25 22.00 3.93 6.43
24 36.00 2.69 27.62 24 1.63 32.00 24.25 23.25 27.62 24.00 4.13 6.56

Asme B16.5 Class 600 Flange Dimensions

Flange Dimensions

Nominal Size Outside Diameter (OD) Min. Thickness (T) RF Dia. (R) No. of Bolt Holes Diameter of Holes Bolt Circle (BC) SO Bore ID (SB) Dia. Hub Base (HB) Dia. Hub Top (HT) SO LTH (SL) WN LTH (WL) * WN Bore ID (WB)
12 3.75 0.56 1.38 4 0.63 2.62 0.88 1.50 0.84 0.88 2.06 *
34 4.62 0.62 1.69 4 0.75 3.25 1.09 1.88 1.05 1.00 2.25 *
1 4.88 0.69 2.00 4 0.75 3.50 1.36 2.12 1.32 1.06 2.44 *
114 5.25 0.81 2.50 4 0.75 3.88 1.70 2.50 1.66 1.12 2.62 *
112 6.12 0.88 2.88 4 0.88 4.50 1.95 2.75 1.90 1.25 2.75 *
2 6.50 1.00 3.62 8 0.75 5.00 2.44 3.31 2.38 1.44 2.88 *
212 7.50 1.12 4.12 8 0.88 5.88 2.94 3.94 2.88 1.62 3.12 *
3 8.25 1.25 5.00 8 0.88 6.62 3.57 4.62 3.50 1.81 3.25 *
312 9.00 1.38 5.50 8 1.00 7.25 4.07 5.25 4.00 1.94 3.38 *
4 10.75 1.50 6.19 8 1.00 8.50 4.57 6.00 4.50 2.12 4.00 *
5 13.00 1.75 7.31 8 1.12 10.50 5.66 7.44 5.56 2.38 4.50 *
6 14.00 1.88 8.50 12 1.12 11.50 6.72 8.75 6.63 2.62 4.62 *
8 16.50 2.19 10.62 12 1.25 13.75 8.72 10.75 8.63 3.00 5.25 *
10 20.00 2.50 12.75 16 1.38 17.00 10.88 13.50 10.75 3.38 6.00 *
12 22.00 2.62 15.00 20 1.38 19.25 12.88 15.75 12.75 3.62 6.12 *
14 23.75 2.75 16.25 20 1.50 20.75 14.14 17.00 14.00 3.69 6.50 *
16 27.00 3.00 18.50 20 1.63 23.75 16.16 19.50 16.00 4.19 7.00 *
18 29.25 3.25 21.00 20 1.75 25.75 18.18 21.50 18.00 4.62 7.25 *
20 32.00 3.50 23.00 24 1.75 28.50 20.20 24.00 20.00 5.00 7.50 *
22 34.25 3.75 25.25 24 1.88 30.63 22.22 26.25 22.00 5.25 7.75 *
24 37.00 4.00 27.25 24 2.00 33.00 24.25 28.25 24.00 5.50 8.00 *
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Ansi B16.5 Class 900 Flange Dimensions In Mm

Flange Dimensions

Nominal Size Outside Diameter (OD) Min. Thickness (T) RF Dia. (R) No. of Bolt Holes Diameter of Holes Bolt Circle (BC) SO Bore ID (SB) * WN Bore ID (WB) Dia. Hub Base (HB) Dia. Hub Top (HT) SO LTH (SL) WN LTH (WL)
3 9.50 1.50 5.00 8 1.00 7.50 3.57 * 5.00 3.50 2.12 4.00
4 11.50 1.75 6.19 8 1.25 9.25 4.57 * 6.25 4.50 2.75 4.50
5 13.75 2.00 7.31 8 1.38 11.00 5.66 * 7.50 5.56 3.12 5.00
6 15.00 2.19 8.50 12 1.25 12.50 6.72 * 9.25 6.63 3.38 5.50
8 18.50 2.50 10.63 12 1.50 15.50 8.72 * 11.75 8.63 4.00 6.38
10 21.50 2.75 12.75 16 1.50 18.50 10.88 * 14.50 10.75 4.25 7.25
12 24.00 3.12 15.00 20 1.50 21.00 12.88 * 16.50 12.75 4.63 7.88
14 25.25 3.38 16.25 20 1.63 22.00 14.14 * 17.75 14.00 5.12 8.38
16 27.75 3.50 18.50 20 1.75 24.25 16.16 * 20.00 16.00 5.25 8.50
18 31.00 4.00 21.00 20 2.00 27.00 18.18 * 22.25 18.00 6.00 9.00
20 33.75 4.25 23.00 20 2.13 29.50 20.20 * 24.50 20.00 6.25 9.75
24 41.00 5.50 27.25 20 2.63 35.50 24.25 * 29.50 24.00 8.00 11.50

Ansi B16 5 Class 1500 Dimensions

Flange Dimensions

Nominal Size Outside Diameter (OD) Min. Thickness (T) RF Dia. (R) No. of Bolt Holes Diameter of Holes Bolt Circle (BC) So Bore ID (SB) Dia. Hub Base (HB) Dia. Hub Top (HT) SO LTH (SL) WN LTH (WL) * WN Bore ID (WB)
12 4.75 0.88 1.38 4 0.88 3.25 0.88 1.50 0.84 1.25 2.38 *
34 5.12 1.00 1.69 4 0.88 3.50 1.09 1.75 1.05 1.38 2.75 *
1 5.88 1.12 2.00 4 1.00 4.00 1.36 2.06 1.32 1.62 2.88 *
114 6.25 1.12 2.50 4 1.00 4.38 1.70 2.50 1.66 1.62 2.88 *
112 7.00 1.25 2.88 4 1.12 4.88 1.95 2.75 1.90 1.75 3.25 *
2 8.50 1.50 3.63 8 1.00 6.50 2.44 4.12 2.38 2.25 4.00 *
212 9.62 1.62 4.13 8 1.12 7.50 2.94 4.88 2.88 2.50 4.12 *
3 10.50 1.88 5.00 8 1.25 8.00 5.25 3.50 4.62 *
4 12.25 2.12 6.19 8 1.38 9.50 6.38 4.50 4.88 *
5 14.75 2.88 7.31 8 1.63 11.50 7.75 5.56 6.12 *
6 15.50 3.25 8.50 12 1.50 12.50 9.00 6.63 6.75 *
8 19.00 3.62 10.63 12 1.75 15.50 11.50 8.63 8.38 *
10 23.00 4.25 12.75 12 2.00 19.00 14.50 10.75 10.00 *
12 26.50 4.88 15.00 16 2.12 22.50 17.75 12.75 11.12 *
14 29.50 5.25 16.25 16 2.38 25.00 19.50 14.00 11.75 *
16 32.50 5.75 18.50 16 2.63 27.75 21.75 16.00 12.25 *
18 36.00 6.38 21.00 16 2.88 30.50 23.50 18.00 12.88 *
20 38.75 7.00 23.00 16 3.12 32.75 25.25 20.00 14.00 *
24 46.00 8.00 27.25 16 3.63 39.00 30.00 24.00 16.00 *

Pressure Rating of ANSI B16.5 Flange

Temperature
FLANGE TABLE -10°C to 200°C

250°C

300°C

350°C

400°C

425°C

450°C

475°C

6

6

5.5

5

10

10

9

8

7

6

16

16

15

13

11

9

25

25

24

21

17

14

12

9

6

40

40

38

33

28

23

20

15

10

64

64

61

53

44

36

32

24

16

100

100

95

83

70

57

50

37

25

160

160

152

132

112

92

80

60

40

Looking To Buy Of B16.5 Industrial Pipe Flange Manufacturer In India? Check Asme B16.5 Threaded Flange Used In Oil And Gas Industry

Weight Chart Of ASME B16.5 Flange

NPS
(Inches)
DN
(mm)
FLANGE OD
A MM
FLANGE THICKNESS D
MM
SLIP ON FLANGE WEIGHT (KGS) WELD NECK FLANGE WEIGHT (KGS) BLIND FLANGE WEIGHT (KGS)
1/ 2 15 88.9 11.2 0.4 0.5 0.4
3/ 4 20 98.6 12.7 0.6 0.7 0.6
1 25 108 14.2 0.8 1 0.9
1 1/ 4 32 117.3 15.7 1 1.3 1.2
1 1/ 2 40 127 17.5 1.3 1.7 1.5
2 50 152.4 19.1 2.1 2.6 2.4
2 1/ 2 65 177.8 22.4 3.3 4.1 3.9
3 80 190.5 23.9 3.9 4.9 4.9
3 1/ 2 90 215.9 23.9 4.8 6.1 6.2
4 100 228.6 23.9 5.3 6.8 7.0
5 125 254 23.9 6.1 8.6 8.6
6 150 279.4 25.4 7.5 10.6 11.3
8 200 342.9 28.4 12.1 17.6 19.6
10 250 406.4 30.2 16.5 24 28.6
12 300 482.6 31.8 26.2 36.5 43.2
14 350 533.4 35.1 34.6 48.4 58.1
16 400 596.9 36.6 44.8 60.6 76.1
18 450 635 39.6 48.9 68.3 93.7
20 500 698.5 42.9 61.9 84.5 122.0
24 600 812.8 47.8 86.9 115 185.0

b16.5 blind flange Size Chart

DN
(in.)
DimensionANSI B16.5 Flange Dimensional 1/2 to 2 1/2 in. Size Chart
125#
150#
300# 400# 600# 900# 1500# 2500#
in.millimeterin.millimeterin.millimeterin.millimeterin.millimeterin.millimeterin.millimeter
1/2A3 1/288.93 3/495.23 3/495.23 3/495.24 3/41214 3/41215 1/4133.4
b7/1611.19/1614.39/1614.39/1614.37/822.27/822.21 3/1630.2
D21 3/834.91 3/834.91 3/834.91 3/834.91 3/834.91 3/834.91 3/834.9
D12 3/860.32 5/866.72 5/866.72 5/866.73 1/482.63 1/482.63 1/288.9
n44444444444-444
d5/815.95/815.95/815.95/815.97/822.27/822.27/822.2
3/4A3 7/898.44 5/8117.54 5/8117.54 5/8117.55 1/81305 1/81305 1/2139.7
b1/212.75/815.95/815.95/815.9125.4125.41 1/431.8
D21 11/1642.91 11/1642.91 11/1642.91 11/1642.91 11/1642.91 11/1642.91 11/1642.9
D12 3/469.83 1/482.53 1/482.53 1/482.53 1/288.93 1/288.93 3/495.2
n44444444444-444
d5/815.93/4193/4193/4197/822.27/822.27/822.2
1A4 1/41084 7/8123.84 7/8123.84 7/8123.85 7/8149.25 7/8149.26 1/4159
b9/1614.311/1617.511/1617.511/1617.51 1/828.61 1/828.61 3/834.9
D2250.8250.8250.8250.8250.8250.8250.8
D13 1/879.43 1/288.93 1/288.93 1/288.9410241024 1/4108
n44444444444444
d5/815.93/4193/4193/419125.4125.4125.4
1 1/4A4 5/8117.55 1/4133.45 1/4133.45 1/4133.46 1/41596 1/41597 1/4184.2
b5/815.93/41913/1620.613/1620.61 1/828.61 1/828.61 1/238.1
D22 1/263.52 1/263.52 1/263.52 1/263.52 1/263.52 1/263.52 1/263.5
D13 1/288.93 7/898.43 7/898.43 7/898.44 3/81114 3/81115 1/8130
n44444444444444
d5/815.93/4193/4193/419125.4125.41 1/828.6
1 1/2A51276 1/8155.66 1/8155.66 1/8155.67177.87177.88203
b11/1617.513/1620.67/822.27/822.21 1/431.81 1/431.81 3/444.5
D22 7/873 982 7/8732 7/8732 7/8732 7/8732 7/8732 7/873
D13 7/844 1/21144 1/21144 1/21144 7/81244 7/81245 3/4146
n44444444444444
d5/8. 15.97/822.27/822.27/822.21 1/828.61 1/828.61 1/431.8
2A6152.46 1/2165.16 1/2165.16 1/2165.18 1/2215.98 1/2215.99 1/4234.9
b3/4197/822.2125.4125.41 1/238.11 1/238.1250.8
D23 5/892.13 5/892.13 5/892.13 5/892.13 5/892.13 5/892.13 5/892.1
D14 3/41215127512751276 1/2165.16 1/2165.16 3/4171
n44888888888888
d3/4193/4193/4193/419125.4125.41 1/828.6
2 1/2A7177.87 1/2190.57 1/2190.57 1/2190.59 5/82449 5/824410 1/2266.7
b7/822.2125.41 1/828.61 1/828.61 5/841.31 5/841.32 1/457.2
D24 1/8104.84 1/8104.84 1/8104.84 1/8104.84 1/81054 1/81054 1/8105
D15 1/2139.75 7/8149.25 7/8149.25 7/8149.27 1/2190.57 1/2190.57 3/4197
n44888888888888
d3/4197/822.27/822.27/822.21 1/828.61 1/828.61 1/431.8

Difference between ASME B16.5 and ASME B16.47 standards?

ASME B16.5 standard covers Pipe Flanges and Flanged Fittings from NPS 1/2 through NPS 24 Metric/Inch in pressure class 150 to class 2500 While ASME B16.47 Standard is for large diameter steel pipe flanges sized from NPS 26 through NPS 60. ASME B16.47 incorporate MSS SP-44: Steel Pipeline Flanges and API 605: Large Diameter Carbon Steel Flanges.

Common Produced Materials of ASME B16.5 Flanges

  • ASTM A105 & A105N Forged Carbon Steel
  • ASTM A182 F11 & F22 Chrome
  • ASTM A182 F304/304L, F316/316L
  • ASTM A350 LF2

Applications of ASME B16.5 Flange

  • Mining
  • Petroleum Refining
  • Pharmaceutical Processing
  • Power Generation—nuclear
  • Pulp and Paper

ASME B16.5 Class 150 Flange Tolerances

DIMENSIONAL TOLERANCES ■ ASME B16.5
WELDING NECK FLANGES
0 Outside Diameter When 0 is 24″ or less ±0.06″ ±1.6 mm
When O is over 24” ±0.12″ ±3.2 mm
R Diameter of Contact Face 0.06” (1.6 mm) raised face ±0.03″ ±0.8 mm
0.25″ (6.4 mm) raised face ±0.02″ ±0.5 mm
A Diameter of Hub at Point of Welding NPS 5 and smaller +0.09″, -0.03″ +2.4 mm, -0.8 mm
NPS 6 and larger +0.16″, -0.03″ +4.0 mm, -0.8 mm
B Inside Diameter NPS 10 and smaller ±0.03″ ±0.8 mm
NPS 12 to 18, inclusive ±0.06″ ±1.6 mm
NPS 20 and larger +0.12″, -0.06” +3.2 mm, -1.6 mm
X Diameter of Hub at Base When Hub Base is 24″ or less ±0.06″ ±1.6 mm
When Hub Base is over 24″ ±0.12″ ±3.2 mm
c Thickness NPS 18 and smaller +0.12″, -0.00″ +3.2 mm, -0.0 mm
NPS 20 and larger +0.19″, -0.00″ +4.8 mm, -0.0 mm
Drilling Bolt Circle Diameter ±0.06″ ±1.6 mm
Bolt Hole Spacing ±0.03″ ±0.8 mm
Eccentricity of Bolt Circle and Facing with Respect to Bore NPS 21/2 and smaller ±0.03″ ±0.8 mm
NPS 3 and larger ±0.06″ ±1.6 mm
Length Through Hub NPS 10 and smaller ±0.06″ ±1.6 mm
NPS 12 and larger ±0.12″ ±3.2 mm
SLIP-ON, LAP JOINT, SOCKET WELDING, THREADED and BLIND FLANGES
O Outside Diameter When O is 24″ or less
When O is over 24″
±0.06″ ±0.12″ ±1.6 mm
±3.2 mm
R Diameter of Contact Face 0.06″ (1.6 mm) raised face 0.25″ (6.4 mm) raised face ±0.03″ ±0.02″ ±0.8 mm
±0.5 mm
B Inside Diameter at Face of Socket Welding Flanges

Inside Diameter of Slip-On, Lap Joint, and Socket Welding

NPS 10 and smaller
NPS 12 through 18, inclusive NPS 20 and larger
±0.03″ ±0.06″ +0.12″, -0.06″ ±0.8 mm
±1.6 mm
+3.2 mm, -1.6 mm
NPS 10 and smaller
NPS 12 and larger
+0.03″, -0.00″ +0.06″, -0.00″ +0.8 mm, -0.0
+1.6 mm, -0.0 mm
Q Counterbore, Threaded Flanges NPS 10 and smaller
NPS 12 and larger
+0.03″, -0.00″ +0.06″, -0.00″ +0.8 mm, -0.0
+ 1.6 mm, -0.0 mm
X Diameter of Hub at Base NPS 12 and smaller
NPS 14 and larger
+0.09″, -0.06″ ±0.12″ +2.4 mm, -1.6
±3.2 mm
c Thickness NPS 18 and smaller
NPS 20 and larger
+0.12″, -0.00″ +0.19″, -0.00″ +3.2 mm, -0.0
+4.8 mm, -0.0 mm
Drilling Bolt Circle Diameter Bolt Hole Spacing ±0.06″ ±0.03″ ±1.6 mm
±0.8 mm
Eccentricity of Bolt Circle and Facing with Respect to Bore NPS 2V2 and smaller
NPS 3 and larger
±0.03″ ±0.06″ ±0.8 mm
±1.6 mm
Overall Length Through Hub NPS 18 and smaller
NPS 20 and larger
+0.12”, -0.03”
+0.19”, -0.03”
+3.2 mm, -0.8 mm
+4.8 mm, -1.6 mm

Our Frequent supply of ASME B16 5 Class 300 Flanges in below countries

ASME B16.5 SCH40 Weld Neck Flange Malaysia, Taiwan, Los Alamos -Mexico, Philippines
ASME B16.5 Class 150 Pipe Flange 1/2" - 96" Sweden, Colombia, Malaysia, China
ansi b16.5 blind rf ff rtj flange class 150 to 2500 United Kingdom -UK, Europe, Malaysia, UAE
ASME B16.5 Welding Neck WN Flange, Class 900 Netherlands, Malaysia, Russia, Dubai
ANSI B16.5 150LBS Weld Neck carbon steel pipe flanges United Arab Emirates (UAE), Turkey, Norway, Malaysia
Flange 304L 1' SW RF ASME B16.5 UK, Canada, Poland, Ellington -United States
3/4'' 300lbs Ansi B16.5 Flange Bahrain, South Africa, Singapore, Singapore
ANSI b16.5 galvanized flange South Africa, Saudi Arabia (KSA), Kuwait, Brazil
DUPLEX 2205 ASME B16.5 1/2" - 24" 150# BLIND FLANGE Philippines, Malaysia, Canada, Singapore
ANSI B16.5 grade2 150# press class titanium blind flange Singapore, South Korea, NY 12203 (USA), Malaysia
Class 150 ASME B16.5 Forged Flange Philippines, France, Australia, UK, Nigeria
Flange 24" Class900 SCH100 ASTM A350-LF2 cl 1 ASME B16.5 Malaysia, USA, Bangladesh, Finland
ASME B16.5 Class 1500 High Pressure Threaded Flange Europe, Japan, Romania, Malaysia
ASME B16. 5 A105 Welded 3" CL 600 RF WN flange Dammam -KSA, Indonesia, Philippines, Belgium
ANSI B16.5 CL150 Brass Bronze Forged Flanges Chile, Italy, Iran, Singapore
Asme B16.5 150# Sorf Stainless Steel Flange Oman, Malaysia, Hong Kong, UAE
ANSI B16.5 4" WT.XS 600# WNRF Egypt, Spain, Mexico, UK
Asme B16.5 PN 6 Forged Rtj Face Blind Flange Qatar, France, Europe, Thailand
B16.5 Incoloy 925 Blind flange Czechia, Germany, Thailand, Malaysia