December 2015 – Piping Components Supplier: Pipes, Fittings, Flanges, Fasteners and Valves

Flange Bolting for Class 900 ASME B16.5 Flanges

1. Technical drawings of flange bolting for Class 900 ASME B16.5 flanges.

stud bolt with nuts for class 900 flange — Drawing of stud bolt with nuts for class 900 ASME B16.5 flange

drilling templates for asme b16.5 class 900 flanges — The drawing of drilling templates for class 900 ASME B16.5 flanges

2. Dimensions of flange bolting for Class 900 ASME B16.5 flanges.

NPS	O inch mm	W inch mm	m inch	n	d inch	L1 inch mm	L2 inch mm	L3 inch mm
1/2"	4.75 120	3.25 82.6	7/8	4	3/4	4.25 110	4.00 100	4.25 110
3/4"	5.12 130	3.50 88.9	7/8	4	3/4	4.50 115	4.25 110	4.50 115
1"	5.88 150	4.00 101.6	1	4	7/8	5.00 125	4.75 120	5.00 125
1 1/4"	6.25 160	4.38 111.1	1	4	7/8	5.00 125	4.75 120	5.00 125
1 1/2"	7.00 180	4.88 123.8	1 1/8	4	1	5.50 140	5.25 135	5.50 140
2"	8.50 215	6.50 165.1	1	8	7/8	5.75 145	5.50 140	5.75 145
2 1/2"	9.62 245	7.50 190.5	1 1/8	8	1	6.25 160	6.00 150	6.25 160
3"	9.50 240	7.50 190.5	1	8	7/8	5.75 145	5.50 140	5.75 145
4"	11.50 290	9.25 235.0	1 1/4	8	1 1/8	6.75 170	6.50 165	6.75 170
5"	13.75 350	11.00 279.4	1 3/8	8	1 1/4	7.50 190	7.25 185	7.50 190
6"	15.00 380	12.50 317.5	1 1/4	12	1 1/8	7.50 190	7.25 185	7.75 195
8"	18.50 470	15.50 393.7	1 1/2	12	1 3/8	8.75 220	8.50 215	8.75 220
10"	21.50 545	18.50 469.9	1 1/2	16	1 3/8	9.25 235	9.00 230	9.25 235
12"	24.00 610	21.00 533.4	1 1/2	20	1 3/8	10.00 255	9.75 250	10.00 255
14"	25.25 640	22.00 558.8	1 5/8	20	1 1/2	10.75 275	10.50 265	11.00 280
16"	27.75 705	24.25 616.0	1 3/4	20	1 5/8	11.25 285	11.00 280	11.50 290
18"	31.00 785	27.00 685.8	2	20	1 7/8	12.75 325	12.50 320	13.25 335
20"	33.75 855	29.50 749.3	2 1/8	20	2	13.75 350	13.50 345	14.25 360
24"	41.00 1040	35.50 901.7	2 5/8	20	2 1/2	17.25 440	17.00 430	18.00 455

1. For the denotation of dimensions “NPS, O, W, m, n, d, L1, L2, L3”, please refer to that of flange bolting for Class 600. The length of the stud bolt doesn’t include the height of the points.

2. The bolting of ASME B16.5 class 900 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 150	Class 300	Class 400	Class 600	Class 900	Class 1500	Class 2500

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.

NPS	O inch mm	W inch mm	m inch	n	d inch	L1 inch mm	L2 inch mm	L3 inch mm
1/2"	3.75 95	2.62 66.7	5/8	4	1/2	3.00 75	2.75 70	3.00 75
3/4"	4.62 115	3.25 82.6	3/4	4	5/8	3.50 90	3.25 85	3.50 90
1"	4.88 125	3.50 88.9	3/4	4	5/8	3.50 90	3.25 85	3.50 90
1 1/4"	5.25 135	3.88 98.4	3/4	4	5/8	3.75 95	3.50 90	3.75 95
1 1/2"	6.12 155	4.50 114.3	7/8	4	3/4	4.25 110	4.00 100	4.25 110
2"	6.50 165	5.00 127.0	3/4	8	5/8	4.25 110	4.00 100	4.25 110
2 1/2"	7.50 190	5.88 149.2	7/8	8	3/4	4.75 120	4.50 115	4.75 120
3"	8.25 210	6.62 168.3	7/8	8	3/4	5.00 125	4.75 120	5.00 125
3 1/2"	9.00 230	7.25 184.2	1	8	7/8	5.50 140	5.25 135	5.50 140
4	10.75 275	8.50 215.9	1	8	7/8	5.75 145	5.50 140	5.75 145
5	13.00 330	10.50 266.7	1 1/8	8	1	6.50 165	6.25 160	6.50 165
6	14.00 355	11.50 292.1	1 1/8	12	1	6.75 170	6.50 165	6.75 170
8	16.50 420	13.75 349.2	1 1/4	12	1 1/8	7.50 190	7.25 185	7.75 195
10	20.00 510	17.00 431.8	1 3/8	16	1 1/4	8.50 215	8.25 210	8.50 215
12	22.00 560	19.25 489.0	1 3/8	20	1 1/4	8.75 220	8.50 215	8.75 220
14	23.75 605	20.75 527.0	1 1/2	20	1 3/8	9.25 235	9.00 230	9.25 235
16	27.00 685	23.75 603.2	1 5/8	20	1 1/2	10.00 255	9.75 250	10.00 255
18	29.25 745	25.75 654.0	1 3/4	20	1 5/8	10.75 275	10.50 265	10.75 275
20	32.00 815	28.50 723.9	1 3/4	24	1 5/8	11.25 285	11.00 280	11.50 290
24	37.00 940	33.00 838.2	2	24	1 7/8	13.00 330	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 150	Class 300	Class 400	Class 600	Class 900	Class 1500	Class 2500

Ring Joint Facings for Class 600 ASME B16.5 Flanges

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

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

NPS	Groove Number	P inch mm	E inch mm	F inch mm	R inch mm	K inch mm	S inch mm
1/2''	R11	1.344 34.14	0.219 5.54	0.281 7.14	0.03 0.8	2.00 51.0	0.12 3
3/4''	R13	1.688 42.88	0.250 6.35	0.344 8.74	0.03 0.8	2.50 63.5	0.16 4
1''	R16	2.000 50.80	0.250 6.35	0.344 8.74	0.03 0.8	2.75 70.0	0.16 4
1 1/4''	R18	2.375 60.33	0.250 6.35	0.344 8.74	0.03 0.8	3.12 79.5	0.16 4
1 1/2''	R20	2.688 68.27	0.250 6.35	0.344 8.74	0.03 0.8	3.56 90.5	0.16 4
2''	R23	3.250 82.55	0.312 7.92	0.469 11.91	0.03 0.8	4.25 108	0.19 5
2 1/2''	R26	4.000 101.60	0.312 7.92	0.469 11.91	0.03 0.8	5.00 127	0.19 5
3 1/2''	R34	5.188 131.78	0.312 7.92	0.469 11.91	0.03 0.8	6.25 159	0.19 5
4''	R37	5.875 149.23	0.312 7.92	0.469 11.91	0.03 0.8	6.88 175	0.19 5
5"	R41	7.125 180.98	0.312 7.92	0.469 11.91	0.03 0.8	8.25 210	0.19 5
6"	R45	8.312 211.12	0.312 7.92	0.469 11.91	0.03 0.8	9.50 241	0.19 5
8"	R49	10.625 269.88	0.312 7.92	0.469 11.91	0.03 0.8	11.88 302	0.19 5
10"	R53	12.750 323.85	0.312 7.92	0.469 11.91	0.03 0.8	14.00 356	0.19 5
12"	R57	15.000 381.00	0.312 7.92	0.469 11.91	0.03 0.8	16.25 413	0.19 5
14"	R61	15.625 419.10	0.312 7.92	0.469 11.91	0.03 0.8	18.00 457	0.19 5
16"	R65	17.875 469.90	0.312 7.92	0.469 11.91	0.03 0.8	20.00 508	0.19 5
18"	R69	20.375 533.40	0.312 7.92	0.469 11.91	0.03 0.8	22.62 575	0.19 5
20"	R73	22.000 584.20	0.375 9.53	0.531 13.49	0.06 1.5	25.00 635	0.19 5
24"	R77	26.500 692.15	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 150	Class 300	Class 400	Class 600	Class 900	Class 1500	Class 2500

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.

NPS	O inch mm	W inch mm	m inch	n	d inch	L1 inch mm	L2 inch mm	L3 inch mm
1/2"	3.75 95	2.62 66.7	5/8	4	1/2	3.00 75	2.75 70	3.00 75
3/4"	4.62 115	3.25 82.6	3/4	4	5/8	3.50 90	3.25 85	3.50 90
1"	4.88 125	3.50 88.9	3/4	4	5/8	3.50 90	3.25 85	3.50 90
1 1/4"	5.25 135	3.88 98.4	3/4	4	5/8	3.75 95	3.50 90	3.75 95
1 1/2"	6.12 155	4.50 114.3	7/8	4	3/4	4.25 110	4.00 100	4.25 110
2"	6.50 165	5.00 127.0	7/8	8	5/8	4.25 110	4.00 100	4.25 110
2 1/2"	7.50 190	5.88 149.2	1	8	3/4	4.75 120	4.50 115	4.75 120
3"	8.25 210	6.62 168.3	1	8	3/4	5.00 125	4.75 120	5.00 125
3 1/2"	9.00 230	7.25 184.2	1 1/8	8	7/8	5.50 140	5.25 135	5.50 140
4"	10.00 255	7.88 200.0	1	8	7/8	5.50 140	5.25 135	5.50 140
5"	11.00 280	9.25 235.0	1	8	7/8	5.75 145	5.25 135	5.75 145
6"	12.50 320	10.62 269.9	1	12	7/8	6.00 150	5.75 145	6.00 150
8"	15.00 380	13.00 330.0	1 1/8	12	1	6.75 170	6.50 165	6.75 170
10"	17.50 445	15.25 387.4	1 1/4	16	1 1/8	7.50 190	7.25 185	7.50 190
12"	20.50 520	17.75 450.8	1 3/8	16	1 1/4	8.00 205	7.75 195	8.00 205
14"	23.00 585	20.25 514.4	1 3/8	20	1 1/4	8.25 210	8.00 205	8.25 210
16"	25.50 650	22.50 571.5	1 1/2	20	1 3/8	8.75 220	8.50 215	8.75 220
18"	28.00 710	24.75 628.6	1 1/2	24	1 3/8	9.00 230	8.75 220	9.00 230
20"	30.50 775	27.00 685.8	1 5/8	24	1 1/2	9.50 240	9.25 235	9.75 250
24"	36.00 915	32.00 812.8	1 7/8	24	1 3/4	10.50 265	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 150	Class 300	Class 400	Class 600	Class 900	Class 1500	Class 2500

Ring Joint Facings for Class 400 ASME B16.5 Flanges

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

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

NPS	Groove Number	P inch mm	E inch mm	F inch mm	R inch mm	K inch mm	S inch mm
4‘’	37	5.875 149.23	0.312 6.35	0.469 11.91	0.03 0.8	6.88 175	0.22 6
5‘’	41	7.125 180.98	0.312 7.92	0.469 11.91	0.03 0.8	8.25 210	0.22 6
6‘’	45	8.312 211.12	0.312 7.92	0.469 11.91	0.03 0.8	9.50 241	0.22 6
8‘’	49	10.625 269.88	0.312 7.92	0.469 11.91	0.03 0.8	11.88 302	0.22 6
10‘’	53	12.750 323.85	0.312 7.92	0.469 11.91	0.03 0.8	14.00 356	0.22 6
12‘’	57	15.000 381.00	0.312 7.92	0.469 11.91	0.03 0.8	16.25 413	0.22 6
14‘’	61	15.625 419.10	0.312 7.92	0.469 11.91	0.03 0.8	18.00 457	0.22 6
16‘’	65	17.875 469.90	0.312 7.92	0.469 11.91	0.03 0.8	20.00 508	0.22 6
18‘’	69	20.375 533.40	0.312 7.92	0.469 11.91	0.03 0.8	22.62 575	0.22 6
20‘’	73	22.000 584.20	0.375 9.53	0.531 13.49	0.06 1.5	25.00 635	0.22 6
24‘’	77	26.500 692.15	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 150	Class 300	Class 400	Class 600	Class 900	Class 1500	Class 2500

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

Element	Content 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 ≤ 16	16 < T ≤ 40	40 < T ≤ 60	-
280	270	260	450~600

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. %
l	t	l at 20°C	t at 20°C
22	20	40	27

“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 R_p0.2 at different temperatures, MPa
100 °C	150 °C	200 °C	250 °C	300 °C	350 °C	400 °C	450 °C	500 °C
243	237	224	205	173	159	156	150	146

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 Material	ASTM Equivalent
Butt Welding Pipe Fittings	ASTM A234 WP1
Seamless Pipes	ASTM A335 P1
Bars	ASTM A217 WC1
Welded Pipe / Plates	ASTM 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.

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

NPS	Groove Number	P inch mm	E inch mm	F inch mm	R inch mm	K inch mm	S inch mm
1/2"	R11	1.344 34.14	0.219 5.54	0.281 7.14	0.03 0.8	2.00 51.0	0.12 3
3/4"	R13	1.688 42.88	0.250 6.35	0.344 8.74	0.03 0.8	2.50 63.5	0.16 4
1"	R16	2.000 50.80	0.250 6.35	0.344 8.74	0.03 0.8	2.75 70.0	0.16 4
1 1/4"	R18	2.375 60.33	0.250 6.35	0.344 8.74	0.03 0.8	3.12 79.5	0.16 4
1 1/2"	R20	2.688 68.27	0.250 6.35	0.344 8.74	0.03 0.8	3.56 90.5	0.16 4
2"	R23	3.250 82.55	0.312 7.92	0.469 11.91	0.03 0.8	4.25 108	0.22 6
2 1/2"	R26	4.000 101.60	0.312 7.92	0.469 11.91	0.03 0.8	5.00 127	0.22 6
3 1/2"	R34	5.188 131.78	0.312 7.92	0.469 11.91	0.03 0.8	6.25 159	0.22 6
4"	R37	5.875 149.23	0.312 7.92	0.469 11.91	0.03 0.8	6.88 175	0.22 6
5"	R41	7.125 180.98	0.312 7.92	0.469 11.91	0.03 0.8	8.25 210	0.22 6
6"	R45	8.312 211.12	0.312 7.92	0.469 11.91	0.03 0.8	9.50 241	0.22 6
8"	R49	10.625 269.88	0.312 7.92	0.469 11.91	0.03 0.8	11.88 302	0.22 6
10"	R53	12.750 323.85	0.312 7.92	0.469 11.91	0.03 0.8	14.00 356	0.22 6
12"	R57	15.000 381.00	0.312 7.92	0.469 11.91	0.03 0.8	16.25 413	0.22 6
14"	R61	15.625 419.10	0.312 7.92	0.469 11.91	0.03 0.8	18.00 457	0.22 6
16"	R65	17.875 469.90	0.312 7.92	0.469 11.91	0.03 0.8	20.00 508	0.22 6
18"	R69	20.375 533.40	0.312 7.92	0.469 11.91	0.03 0.8	22.62 575	0.22 6
20"	R73	22.000 584.20	0.375 9.53	0.531 13.49	0.06 1.5	25.00 635	0.22 6
24"	R77	26.500 692.15	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 150	Class 300	Class 400	Class 600	Class 900	Class 1500	Class 2500

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.

NPS	O inch mm	W inch mm	m inch	n	d inch	L1 inch mm	L2 inch mm	L3 inch mm
1/2"	3.75 95	2.62 66.7	5/8	4	1/2	2.50 65	3.00 75	2.25 55
3/4	4.62 115	3.25 82.6	3/4	4	5/8	3.00 75	3.50 90	2.50 65
1	4.88 125	3.50 88.9	3/4	4	5/8	3.00 75	3.50 90	2.50 65
1 1/4	5.25 135	3.88 98.4	3/4	4	5/8	3.25 85	3.75 95	2.75 70
1 1/2	6.12 155	4.50 114.3	7/8	4	3/4	3.50 90	4.00 100	3.00 75
2	6.50 165	5.00 127.0	3/4	8	5/8	3.50 90	4.00 100	3.00 75
2 1/2	7.50 190	5.88 149.2	7/8	8	3/4	4.00 100	4.50 115	3.25 85
3	8.25 210	6.62 168.3	7/8	8	3/4	4.25 110	4.75 120	3.50 90
3 1/2	9.00 230	7.25 184.2	7/8	8	3/4	4.25 110	5.00 125	3.75 95
4	10.00 255	7.88 200.0	7/8	8	3/4	4.50 115	5.00 125	3.75 95
5	11.00 280	9.25 235.0	7/8	8	3/4	4.75 120	5.25 135	4.25 110
6	12.50 320	10.62 269.9	7/8	12	3/4	4.75 120	5.50 140	4.25 110
8	15.00 380	13.00 330.2	1	12	7/8	5.50 140	6.00 150	4.75 120
10	17.50 445	15.25 387.4	1 1/8	16	1	6.25 160	6.75 170	5.50 140
12	20.50 520	17.75 450.8	1 1/4	16	1 1/8	6.75 170	7.25 185	5.75 145
14	23.00 585	20.25 514.4	1 1/4	20	1 1/8	7.00 180	7.50 190	6.25 160
16	25.50 650	22.50 571.5	1 3/8	20	1 1/4	7.50 190	8.00 205	6.50 165
18	28.00 710	24.75 628.6	1 3/8	24	1 1/4	7.75 195	8.25 210	6.75 170
20	30.50 775	27.00 685.8	1 3/8	24	1 1/4	8.00 205	8.75 220	7.25 185
24	36.00 915	32.00 812.8	1 5/8	24	1 1/2	9.00 230	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 150	Class 300	Class 400	Class 600	Class 900	Class 1500	Class 2500