Flange Bolting for Class 600 ASME B16.5 Flanges

1. Technical drawings of flange bolting for Class 600 ASME B16.5 flanges.

stud bolt with nuts for class 600 flange
Drawing of stud bolt with nuts for class 600 ASME B16.5 flange
drilling templates for asme b16.5 class 600 flanges
The drawing of drilling templates for class 600 ASME B16.5 flanges

2. Dimensions of flange bolting for Class 600 ASME B16.5 flanges.

NPSO
inch
mm
W
inch
mm
m
inch
nd
inch
L1
inch
mm
L2
inch
mm
L3
inch
mm
1/2"3.75
95
2.62
66.7
5/841/23.00
75
2.75
70
3.00
75
3/4"4.62
115
3.25
82.6
3/445/83.50
90
3.25
85
3.50
90
1"4.88
125
3.50
88.9
3/445/83.50
90
3.25
85
3.50
90
1 1/4"5.25
135
3.88
98.4
3/445/83.75
95
3.50
90
3.75
95
1 1/2"6.12
155
4.50
114.3
7/843/44.25
110
4.00
100
4.25
110
2"6.50
165
5.00
127.0
3/485/84.25
110
4.00
100
4.25
110
2 1/2"7.50
190
5.88
149.2
7/883/44.75
120
4.50
115
4.75
120
3"8.25
210
6.62
168.3
7/883/45.00
125
4.75
120
5.00
125
3 1/2"9.00
230
7.25
184.2
187/85.50
140
5.25
135
5.50
140
410.75
275
8.50
215.9
187/85.75
145
5.50
140
5.75
145
513.00
330
10.50
266.7
1 1/8816.50
165
6.25
160
6.50
165
614.00
355
11.50
292.1
1 1/81216.75
170
6.50
165
6.75
170
816.50
420
13.75
349.2
1 1/4121 1/87.50
190
7.25
185
7.75
195
1020.00
510
17.00
431.8
1 3/8161 1/48.50
215
8.25
210
8.50
215
1222.00
560
19.25
489.0
1 3/8201 1/48.75
220
8.50
215
8.75
220
1423.75
605
20.75
527.0
1 1/2201 3/89.25
235
9.00
230
9.25
235
1627.00
685
23.75
603.2
1 5/8201 1/210.00
255
9.75
250
10.00
255
1829.25
745
25.75
654.0
1 3/4201 5/810.75
275
10.50
265
10.75
275
2032.00
815
28.50
723.9
1 3/4241 5/811.25
285
11.00
280
11.50
290
2437.00
940
33.00
838.2
2241 7/813.00
330
12.75
325
13.25
335

1. For the denotation of dimensions “NPS, O, W, m, n, d, L1, L2, L3”, please refer to that of flange bolting for Class 400. The length of the stud bolt doesn’t include the height of the points.

2. The bolting of ASME B16.5 class 600 flanges can be furnished as stud bolts with nuts. Stud bolts can be used for flanges with either raised face or ring joint face. All dimensions are provided in mm and inch units.

ASME B16.5 Flange Bolting Specification by Classes
Class 150Class 300Class 400Class 600Class 900Class 1500Class 2500

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Ring Joint Facings for Class 600 ASME B16.5 Flanges

1. Technical drawings of ring joint facings for Class 600 ASME B16.5 Flanges.

ring-joint-facings-for-class-600-asme-b16.5-flanges-drawing
ring-joint-facings-for-class-600-asme-b16.5-flanges-drawing

2. Dimensions of ring joint facings for Class 600 Flange Joints and Groove.

NPSGroove NumberP
inch
mm
E
inch
mm
F
inch
mm
R
inch
mm
K
inch
mm
S
inch
mm
1/2''R111.344
34.14
0.219
5.54
0.281
7.14
0.03
0.8
2.00
51.0
0.12
3
3/4''R131.688
42.88
0.250
6.35
0.344
8.74
0.03
0.8
2.50
63.5
0.16
4
1''R162.000
50.80
0.250
6.35
0.344
8.74
0.03
0.8
2.75
70.0
0.16
4
1 1/4''R182.375
60.33
0.250
6.35
0.344
8.74
0.03
0.8
3.12
79.5
0.16
4
1 1/2''R202.688
68.27
0.250
6.35
0.344
8.74
0.03
0.8
3.56
90.5
0.16
4
2''R233.250
82.55
0.312
7.92
0.469
11.91
0.03
0.8
4.25
108
0.19
5
2 1/2''R264.000
101.60
0.312
7.92
0.469
11.91
0.03
0.8
5.00
127
0.19
5
3 1/2''R345.188
131.78
0.312
7.92
0.469
11.91
0.03
0.8
6.25
159
0.19
5
4''R375.875
149.23
0.312
7.92
0.469
11.91
0.03
0.8
6.88
175
0.19
5
5"R417.125
180.98
0.312
7.92
0.469
11.91
0.03
0.8
8.25
210
0.19
5
6"R458.312
211.12
0.312
7.92
0.469
11.91
0.03
0.8
9.50
241
0.19
5
8"R4910.625
269.88
0.312
7.92
0.469
11.91
0.03
0.8
11.88
302
0.19
5
10"R5312.750
323.85
0.312
7.92
0.469
11.91
0.03
0.8
14.00
356
0.19
5
12"R5715.000
381.00
0.312
7.92
0.469
11.91
0.03
0.8
16.25
413
0.19
5
14"R6115.625
419.10
0.312
7.92
0.469
11.91
0.03
0.8
18.00
457
0.19
5
16"R6517.875
469.90
0.312
7.92
0.469
11.91
0.03
0.8
20.00
508
0.19
5
18"R6920.375
533.40
0.312
7.92
0.469
11.91
0.03
0.8
22.62
575
0.19
5
20"R7322.000
584.20
0.375
9.53
0.531
13.49
0.06
1.5
25.00
635
0.19
5
24"R7726.500
692.15
0.438
11.13
0.656
16.66
0.06
1.5
29.50
749
0.22
6

1.For denotation of ” NPS, P, E, F, R, K, S “, please refer to ring joint facings for Class 300 ASME B16.5 flanges.

2. All dimensions are provided in mm and inch unit. The depth of the groove, E, shall be furnished with the same dimension as the height of the raised portion. The groove number of  ring joint facings for class 600 shall match the type R ring gaskets manufactured to ASME B16.20.

Ring Joint Facings for ASME B16.5 Flanges Classified by Classes
Class 150Class 300Class 400Class 600Class 900Class 1500Class 2500

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Flange Bolting for Class 400 ASME B16.5 Flanges

1. Technical drawings of flange bolting for Class 400 ASME B16.5 flanges.

stud bolt with nuts for class 400 flange
Drawing of stud bolt with nuts for class 400 ASME B16.5 flange
drilling templates for asme b16.5 class 400 flanges
The drawing of drilling templates for class 400 ASME B16.5 flanges

2. Dimensions of flange bolting for Class 400 ASME B16.5 flanges.

NPSO
inch
mm
W
inch
mm
m
inch
nd
inch
L1
inch
mm
L2
inch
mm
L3
inch
mm
1/2"3.75
95
2.62
66.7
5/841/23.00
75
2.75
70
3.00
75
3/4"4.62
115
3.25
82.6
3/445/83.50
90
3.25
85
3.50
90
1"4.88
125
3.50
88.9
3/445/83.50
90
3.25
85
3.50
90
1 1/4"5.25
135
3.88
98.4
3/445/83.75
95
3.50
90
3.75
95
1 1/2"6.12
155
4.50
114.3
7/843/44.25
110
4.00
100
4.25
110
2"6.50
165
5.00
127.0
7/885/84.25
110
4.00
100
4.25
110
2 1/2"7.50
190
5.88
149.2
183/44.75
120
4.50
115
4.75
120
3"8.25
210
6.62
168.3
183/45.00
125
4.75
120
5.00
125
3 1/2"9.00
230
7.25
184.2
1 1/887/85.50
140
5.25
135
5.50
140
4"10.00
255
7.88
200.0
187/85.50
140
5.25
135
5.50
140
5"11.00
280
9.25
235.0
187/85.75
145
5.25
135
5.75
145
6"12.50
320
10.62
269.9
1127/86.00
150
5.75
145
6.00
150
8"15.00
380
13.00
330.0
1 1/81216.75
170
6.50
165
6.75
170
10"17.50
445
15.25
387.4
1 1/4161 1/87.50
190
7.25
185
7.50
190
12"20.50
520
17.75
450.8
1 3/8161 1/48.00
205
7.75
195
8.00
205
14"23.00
585
20.25
514.4
1 3/8201 1/48.25
210
8.00
205
8.25
210
16"25.50
650
22.50
571.5
1 1/2201 3/88.75
220
8.50
215
8.75
220
18"28.00
710
24.75
628.6
1 1/2241 3/89.00
230
8.75
220
9.00
230
20"30.50
775
27.00
685.8
1 5/8241 1/29.50
240
9.25
235
9.75
250
24"36.00
915
32.00
812.8
1 7/8241 3/410.50
265
10.25
260
11.00
280

1. NPS refers to Nominal Pipe Size, O – outside diameter of flange, W – Diameter of bolt circle, m – Diameter of bolt holes, n – number of bolts, d – diameter of bolts, L1 – length of stud bolts for 7 mm raised face, L2 – length of stud bolts for male and female tongue and groove, L3 – length of stud bolts for raised face.

2. The bolting of ASME B16.5 class 400 flanges can be furnished as stud bolts with nuts. Stud bolts can be used for flanges with either raised face or ring joint face. All dimensions are provided in mm and inch units.

ASME B16.5 Flange Bolting Specification by Classes
Class 150Class 300Class 400Class 600Class 900Class 1500Class 2500

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Ring Joint Facings for Class 400 ASME B16.5 Flanges

1. Technical drawings of ring joint facings for Class 400 ASME B16.5 Flanges.

ring-joint-facings-for-class-400-asme-b16.5-flanges-drawing
ring-joint-facings-for-class-400-asme-b16.5-flanges-drawing

2. Dimensions of ring joint facings for Class 400 Flange Joints and Groove.

NPSGroove NumberP
inch
mm
E
inch
mm
F
inch
mm
R
inch
mm
K
inch
mm
S
inch
mm
4‘’375.875
149.23
0.312
6.35
0.469
11.91
0.03
0.8
6.88
175
0.22
6
5‘’417.125
180.98
0.312
7.92
0.469
11.91
0.03
0.8
8.25
210
0.22
6
6‘’458.312
211.12
0.312
7.92
0.469
11.91
0.03
0.8
9.50
241
0.22
6
8‘’4910.625
269.88
0.312
7.92
0.469
11.91
0.03
0.8
11.88
302
0.22
6
10‘’5312.750
323.85
0.312
7.92
0.469
11.91
0.03
0.8
14.00
356
0.22
6
12‘’5715.000
381.00
0.312
7.92
0.469
11.91
0.03
0.8
16.25
413
0.22
6
14‘’6115.625
419.10
0.312
7.92
0.469
11.91
0.03
0.8
18.00
457
0.22
6
16‘’6517.875
469.90
0.312
7.92
0.469
11.91
0.03
0.8
20.00
508
0.22
6
18‘’6920.375
533.40
0.312
7.92
0.469
11.91
0.03
0.8
22.62
575
0.22
6
20‘’7322.000
584.20
0.375
9.53
0.531
13.49
0.06
1.5
25.00
635
0.22
6
24‘’7726.500
692.15
0.438
11.13
0.656
16.66
0.06
1.5
29.50
749
0.25
6

1.For denotation of ” NPS, P, E, F, R, K, S “, please refer to ring joint facings for Class 300 ASME B16.5 flanges.

2. All dimensions are provided in mm and inch unit. The depth of the groove, E, shall be furnished with the same dimension as the height of the raised portion. The groove number of  ring joint facings for class 400 shall match the type R ring gaskets manufactured to ASME B16.20.

Ring Joint Facings for ASME B16.5 Flanges Classified by Classes
Class 150Class 300Class 400Class 600Class 900Class 1500Class 2500

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EN 10253-2 16Mo3 Butt Welding Pipe Fittings

1. General Introduction

16Mo3 (1.5415) is a fully killed alloy steel for pipe fittings specified by EN 10253-2. Butt welding pipe fittings(elbow, tee, reducer and cap) made from 16Mo3 steel are often used for pressure purposes at elevated temperature. The chemical composition, mechanical properties(yield /proof strength, tensile strength, elongation, impact properties, hot yield strengths at different temperatures), and heat treatment conditions of EN 10253-2 16Mo3 are the same as that of EN 10216-2 16Mo3. The starting material for EN 10253-2 16Mo3 pipe fittings can be seamless pipe, welded pipe or steel plate. The closest ASTM equivalent is A234 WP1 which is also a chromium-molybdenum(Cr-Mo) alloy steel for butt-weld pipe fittings.

en 10253-2 16Mo3 chemical composition pmi test
Chemical composition analysis, PMI(spectrum) inspection for EN 10253-2 16Mo3 pipe fittings.

2. EN 10253-2 16Mo3 pipe fittings supplied by HBMetals.

equal tee dn500x60mm en 10253-2 type b 16Mo3 1.5415
EN 10253-2 Equal Tee DN 500 x 60mm Type B, Material: 16Mo3 / 1.5415.
en 10253-2 16mo3 elbow 2d type b power plant piping
EN 10253-2 Elbows 90° & 45° O.D 610mm x 10mm thk R=2D. Grade 16Mo3 for power plant piping, Belgium.

EN 10216-2 16Mo3 Seamless Steel Pipe

As a chromium-molybdenum(Cr-Mo) alloy steel, the EN 10216-2 16Mo3 seamless pipe is mainly utilized at elevated temperatures in oil refinery piping, steam pipeline, and power plant projects, etc. The steel number of grade 16Mo3 is 1.5415 which is an European designation. The relative ASTM equivalent is ASTM A335 Grade P1(also known as ASME SA335 Grade P1). The A335 P1 pipe is also used in high-temperature services which contains a bit higher molybdenum by mass.

boiler plant heat exchanger made of en 10216-2 16Mo3 seamless pipes
Heat exchanger made of EN 10216-2 16Mo3 seamless pipes for a boiler plant in Lithuania.
EN 10216-2 16Mo3 seamless pipe dn350x60mm
Heavy wall seamless pipes, EN 10216-2 16Mo3 DN 350(O.D 355.6) x 60 mm, for a German client.

1. EN 10216-2 16Mo3 chemical composition

ElementContent by Mass, %
Carbon (C)0.12~0.20
Silicon (Si)≤0.35
Manganese (Mn)0.40~0.90
Phosphorus (P)≤0.025
Sulfur (S)≤0.020
Chromium (Cr)≤0.30
Molybdenum (Mo)0.25~0.35
Nickel (Ni)≤0.30
Aluminium (Al)≤0.040
Copper (Cu)≤0.30

2. Mechanical properties of EN 10216-2 16Mo3(1.5415) seamless pipes

Yield Strength & Tensile Strength

Yield Strength for Wall Thickness T,
Min. MPa
Tensile Strength
MPa
T ≤ 1616 < T ≤ 4040 < T ≤ 60-
280270260450~600
T refers to wall thickness of the pipe. All values are minimum unless otherwise specified.

Elongation and Impact Properties

Elongation A min. %Absorbed Energy KV Min. %
ltl at 20°Ct at 20°C
22204027
“l” refers to longitudinal while “t” refers to transverse of the pipe. All values are the minimum. Impact test(charpty test) shall be conducted at room temperature.

Temperature - Proof Strength Ratings

Minimum Proof Strength Rp0.2 at different temperatures, MPa
100 °C150 °C200 °C250 °C300 °C350 °C400 °C450 °C500 °C
243237224205173159156150146

3. Heat treatment conditions

The 16Mo3 / 1.5415 alloy steel pipe shall be normalized at a temperature between 890 °C and 950 °C and then be cooled in ambient temperature.

16Mo3 / 1.5415 European Alloy Steels

16Mo3 Material

16Mo3, designated with steel number 1.5415, is an European (DIN EN) steel grade for alloy steels. The 16Mo3 material can be furnished in different product forms in accordance with relative EN standards. Generally speaking, 16Mo3 is a Cr-Mo alloy steel. The addition of molybdenum(Mo) not only improves the resistance to pitting corrosion but also significantly enhances creep strength at elevated temperatures. The chromium(Cr) improves the resistance to high-temperature hydrogen attack and graphitization.

(1) EN 10216-2: Seamless steel tubes for pressure purposes – Technical delivery conditions – Part 2: Non-alloy and alloy steel tubes with specified elevated temperature properties.

EN 10216-2 16Mo3 seamless pipes 323.8mm x 46mm 6m
EN 10216-2 16Mo3 seamless pipes for a power plant project in Czech, O.D=323.8mm, W.T=46mm L=6m.

(2) EN 10253-2: Butt welding pipe fittings – Part 2: Non-alloy and ferritic alloy steels with specific inspection requirements.

EN 10253-2 16Mo3 elbow 3d dn600 x 60mm type B bevelled ends
EN 10253-2 16Mo3 Elbow 3D 90° DN600 x 60mm Type B bevelled ends.

(3) EN 10222-2: Steel forgings for pressure purposes – Part 2: Ferritic and martensitic steels with specified elevated temperature properties(especially, referring to EN 1092-1 flanges.

(4) EN 10217-2: Welded steel tubes for pressure purposes – Technical delivery conditions – Part 2: Electric welded non-alloy and alloy steel tubes with specified elevated temperature properties.

(5) EN 10217-5: Welded steel tubes for pressure purposes – Technical delivery conditions – Part 5: Submerged arc welded non-alloy and alloy steel tubes with specified elevated temperature properties.

(6) EN 10028-2: Flat products(especially referring to steel plates) made of steels for pressure purposes. Part 2: Non-alloy and alloy steels with specified elevated temperature properties.

(7) EN 10273: Hot rolled weldable steel bars for pressure purposes with specified elevated temperature properties.

16Mo3 ASTM Equivalent

Since relative ASTM(ASME) standards are most widely utilized in pipeline design, sometimes it is necessary to find the decent ASTM / ASME equivalent for the EN 16Mo3 steel. As a rule of thumb, their correlations are shown in below data sheet:

16Mo3 MaterialASTM Equivalent
Butt Welding Pipe FittingsASTM A234 WP1
Seamless PipesASTM A335 P1
BarsASTM A217 WC1
Welded Pipe / PlatesASTM A204 Gr.A & Gr. B
Forgings(Flanges)ASTM A182 F1

Ring Joint Facings for Class 300 ASME B16.5 Flanges

1. Technical drawings of ring joint facings for Class 300 ASME B16.5 Flanges.

ring joint facings for class 300 asme b16.5 flanges-drawing
The drawing of ring joint facings for Class 300 ASME B16.5 flanges.

2. Dimensions of ring joint facings for Class 300 Flange Joints and Groove.

NPSGroove NumberP
inch
mm
E
inch
mm
F
inch
mm
R
inch
mm
K
inch
mm
S
inch
mm
1/2"R111.344
34.14
0.219
5.54
0.281
7.14
0.03
0.8
2.00
51.0
0.12
3
3/4"R131.688
42.88
0.250
6.35
0.344
8.74
0.03
0.8
2.50
63.5
0.16
4
1"R162.000
50.80
0.250
6.35
0.344
8.74
0.03
0.8
2.75
70.0
0.16
4
1 1/4"R182.375
60.33
0.250
6.35
0.344
8.74
0.03
0.8
3.12
79.5
0.16
4
1 1/2"R202.688
68.27
0.250
6.35
0.344
8.74
0.03
0.8
3.56
90.5
0.16
4
2"R233.250
82.55
0.312
7.92
0.469
11.91
0.03
0.8
4.25
108
0.22
6
2 1/2"R264.000
101.60
0.312
7.92
0.469
11.91
0.03
0.8
5.00
127
0.22
6
3 1/2"R345.188
131.78
0.312
7.92
0.469
11.91
0.03
0.8
6.25
159
0.22
6
4"R375.875
149.23
0.312
7.92
0.469
11.91
0.03
0.8
6.88
175
0.22
6
5"
R417.125
180.98
0.312
7.92
0.469
11.91
0.03
0.8
8.25
210
0.22
6
6"R458.312
211.12
0.312
7.92
0.469
11.91
0.03
0.8
9.50
241
0.22
6
8"R4910.625
269.88
0.312
7.92
0.469
11.91
0.03
0.8
11.88
302
0.22
6
10"R5312.750
323.85
0.312
7.92
0.469
11.91
0.03
0.8
14.00
356
0.22
6
12"R5715.000
381.00
0.312
7.92
0.469
11.91
0.03
0.8
16.25
413
0.22
6
14"R6115.625
419.10
0.312
7.92
0.469
11.91
0.03
0.8
18.00
457
0.22
6
16"R6517.875
469.90
0.312
7.92
0.469
11.91
0.03
0.8
20.00
508
0.22
6
18"R6920.375
533.40
0.312
7.92
0.469
11.91
0.03
0.8
22.62
575
0.22
6
20"R7322.000
584.20
0.375
9.53
0.531
13.49
0.06
1.5
25.00
635
0.22
6
24"R7726.500
692.15
0.438
11.13
0.656
16.66
0.06
1.5
29.50
749
0.25
6

1. NPS denotes nominal pipe size, P – pitch diameter, E – depth of the groove & height of the raised portion, F – top width of the groove, R – radius at bottom, K – diameter of raised portion, S – approximate distance between flanges. The 300# RTJ flange facings can be applied to various flange types including welding neck flange class 300, slip on flange 300#, Blind flange 300lb, etc.

2. All dimensions are provided in mm and inch unit. The depth of the groove, E, shall be furnished with the same dimension as the height of the raised portion. The groove number of  ring joint facings for class 300 shall match the type R ring gaskets manufactured to ASME B16.20.

Ring Joint Facings for ASME B16.5 Flanges Classified by Classes
Class 150Class 300Class 400Class 600Class 900Class 1500Class 2500

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Flange Bolting for Class 300 ASME B16.5 Flanges

1. Technical drawings of flange bolting for Class 300 ASME B16.5 flanges.

machine bolt with nuts and stud bolt with nuts for class 300 flanges
Drawings of machine bolt with nuts & stud bolt with nuts for Class 300 ASME B16.5 flanges.
drilling templates for asme b16.5 class 300 flanges
The drawing of drilling templates for Class 300 ASME B16.5 flanges.

2. Dimensions of flange bolting for Class 300 ASME B16.5 flanges.

NPSO
inch
mm
W
inch
mm
m
inch
nd
inch
L1
inch
mm
L2
inch
mm
L3
inch
mm
1/2"3.75
95
2.62
66.7
5/841/22.50
65
3.00
75
2.25
55
3/44.62
115
3.25
82.6
3/445/83.00
75
3.50
90
2.50
65
14.88
125
3.50
88.9
3/445/83.00
75
3.50
90
2.50
65
1 1/45.25
135
3.88
98.4
3/445/83.25
85
3.75
95
2.75
70
1 1/26.12
155
4.50
114.3
7/843/43.50
90
4.00
100
3.00
75
26.50
165
5.00
127.0
3/485/83.50
90
4.00
100
3.00
75
2 1/27.50
190
5.88
149.2
7/883/44.00
100
4.50
115
3.25
85
38.25
210
6.62
168.3
7/883/44.25
110
4.75
120
3.50
90
3 1/29.00
230
7.25
184.2
7/883/44.25
110
5.00
125
3.75
95
410.00
255
7.88
200.0
7/883/44.50
115
5.00
125
3.75
95
511.00
280
9.25
235.0
7/883/44.75
120
5.25
135
4.25
110
612.50
320
10.62
269.9
7/8123/44.75
120
5.50
140
4.25
110
815.00
380
13.00
330.2
1127/85.50
140
6.00
150
4.75
120
1017.50
445
15.25
387.4
1 1/81616.25
160
6.75
170
5.50
140
1220.50
520
17.75
450.8
1 1/4161 1/86.75
170
7.25
185
5.75
145
1423.00
585
20.25
514.4
1 1/4201 1/87.00
180
7.50
190
6.25
160
1625.50
650
22.50
571.5
1 3/8201 1/47.50
190
8.00
205
6.50
165
1828.00
710
24.75
628.6
1 3/8241 1/47.75
195
8.25
210
6.75
170
2030.50
775
27.00
685.8
1 3/8241 1/48.00
205
8.75
220
7.25
185
2436.00
915
32.00
812.8
1 5/8241 1/29.00
230
10.00
255
8.00
205

1. For the denotation of dimensions “NPS, O, W, m, n, d, L1, L2, L3”, please refer to that of flange bolting for Class 150. The length of the stud bolt doesn’t include the height of the points.

2. The bolting of ASME B16.5 class 300 flanges can be furnished as machine bolt with nuts or stud bolts with nuts. Machine bolts shall be only used for flanges with raised face while stud bolts can be used for flanges with either raised face or ring joint face. All dimensions are provided in mm and inch units. The length of the stud bolt doesn’t include the height of the points.

ASME B16.5 Flange Bolting Specification by Classes
Class 150Class 300Class 400Class 600Class 900Class 1500Class 2500

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Ring Joint Facings for Class 150 ASME B16.5 Flanges

1. Technical drawings of ring joint facings for Class 150 ASME B16.5 Flanges.

ring joint facings for class 150 asme b16.5 flanges-drawing
The typical drawing of ring joint facings for Class 150 flanges manufactured to ASME B16.5.

2. Dimensions of ring joint facings for Class 150 Flange Joints and Groove.

NPSGroove NumberP
inch
mm
E
inch
mm
F
inch
mm
R
inch
mm
K
inch
mm
S
inch
mm
1"R151.875
47.63
0.250
6.35
0.344
8.74
0.03
0.8
2.5
63.5
0.16
4
1-1/4"R172.250
57.15
0.250
6.35
0.344
8.74
0.03
0.8
2.88
73.0
0.16
4
1-1/2"R192.562
65.07
0.250
6.35
0.344
8.74
0.03
0.8
3.25
82.5
0.16
4
2"R223.250
82.55
0.250
6.35
0.344
8.74
0.03
0.8
4.00
102
0.16
4
2-1/2"R254.000
101.6
0.250
6.35
0.344
8.74
0.03
0.8
4.75
121
0.16
4
3"R294.500
114.3
0.250
6.35
0.344
8.74
0.03
0.8
5.25
133
0.16
4
3-1/2"R335.188
131.78
0.250
6.35
0.344
8.74
0.03
0.8
6.06
154
0.16
4
4"R365.875
149.23
0.250
6.35
0.344
8.74
0.03
0.8
6.75
171
0.16
4
5"R406.750
171.45
0.250
6.35
0.344
8.74
0.03
0.8
7.62
194
0.16
4
6"R437.625
193.68
0.250
6.35
0.344
8.74
0.03
0.8
8.62
219
0.16
4
8"R489.750
247.65
0.250
6.35
0.344
8.74
0.03
0.8
10.75
273
0.16
4
10"R5212.000
304.80
0.250
6.35
0.344
8.74
0.03
0.8
13.00
330
0.16
4
12"R5615.000
381.00
0.250
6.35
0.344
8.74
0.03
0.8
16.00
406
0.16
4
14"R5915.625
396.88
0.250
6.35
0.344
8.74
0.03
0.8
16.75
425
0.12
3
16"R6417.875
454.03
0.250
6.35
0.344
8.74
0.03
0.8
19.00
483
0.12
3
18"R6820.375
517.53
0.250
6.35
0.344
8.74
0.03
0.8
21.50
546
0.12
3
20"R7222.000
558.80
0.250
6.35
0.344
8.74
0.03
0.8
23.50
597
0.12
3
24"R7626.500
673.10
0.250
6.35
0.344
8.74
0.03
0.8
28.00
711
0.12
3

1. NPS denotes nominal pipe size, P – pitch diameter, E – depth of the groove & height of the raised portion, F – top width of the groove, R – radius at bottom, K – diameter of raised portion, S – approximate distance between flanges. The 150# RTJ flange facings can be applied to various flange types including welding neck flange class 150, slip on flange 150#, Blind flange 150lb, etc.

2. All dimensions are provided in mm and inch unit. The depth of the groove, E, shall be furnished with the same dimension as the height of the raised portion. The groove number of  ring joint facings for class 150 shall match the type R ring gaskets manufactured to ASME B16.20.

Ring Joint Facings for ASME B16.5 Flanges Classified by Classes
Class 150Class 300Class 400Class 600Class 900Class 1500Class 2500

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