Stainless Steel Flanges

ASTM A182 Forged Flanges and Stainless Steel Plate Flange Manufacturer in India

What Is Stainless Steel Flanges?
Stainless steel flanges are components designated to a ferrous group. These versatile components have a minimum of 11% of chromium content. The content of chromium forms a protective layer on the flange giving these modules enhanced resistance to corrosion and oxidation. These robust flange types can be used to connect pipes, valves, and other piping equipment in the system. They function well in high-temperature systems while exhibiting superior strength and prowess. The flanges securely seal piping ends and can be readily welded in place following standard welding procedures.

What Are Stainless Steel Pipe Flange Used For?
A stainless steel pipe flange is a module that is employed to connect a range of piping equipment in the system. They can connect pipes of different shapes and sizes. These flanges are commonly used in petrochemical refineries, oil and gas industries, chemical processing, food and beverage, pulp and paper production, and so on.

Stainless Steel Lap Joint Flange Vs Stainless Steel Slip On Flange
Stainless Steel lap joint and slip on flanges are amongst the two versatile flange types in the piping industry. These flange types can be differentiated based on certain features.

• Stainless steel lap joint flange is designed with a backing flange coupled with a stub end. The stub end is slid on the pipe and welded using a butt-weld. Stainless steel slip on flange is slid on the pipe and welded with a fillet weld.
• Lap joint flanges can be used in high-pressure and temperature setups. Slip on flanges are used in low to moderate pressure and temperature setups.

How Do You Measure Stainless Steel Weld Neck Flange?
Weld neck flange dimensions are based on a range of features. To measure these flange correctly, check the inside and outside diameter of the flange. The pressure class and thickness also play a crucial role. Apart from this, the hole size and pitch circle diameter should be measured correctly to get the correct dimensions.

Which Type Of Stainless Steel Flange Is Used In High Pressure Services?
Ring joint type flange is a robust flange designed to possess a protruded raised groove. The groove provides support to piping material in high pressure and elevated temperature services.

MSS SP-44 6 Inch Stainless Steel Plate Flange/ Tube Flange and ASTM A182 SS Pipe Flange manufacturer in India

Table of Contents

• Stainless Steel Flange Material Specification
• Stainless Steel Flange Price List
• Stainless Steel Pipe Flange Chemical Compostion
• Stainless Steel Loose Flange Mechanical Properties
• Equivalent of Schedule 10 Stainless Steel Flanges
• Astm A182 Stainless Steel Flange Weights
• Stainless Steel Ansi Flange Pressure Ratings
• Stainless Steel Flange Dimensions In Mm
• ASTM Standard For Stainless Steel Flanges
• ASME Standard For Stainless Steel Flanges
• Types Of Stainless Steel Flanges
• Stainless Steel Flange Torque Chart

• Stainless Steel Flange Thickness
• All Types Of Stainless Steel Flange
• SS Flange Hsn Code
• 150# Ss Flange Dimensions In Mm
• Stainless Steel Class 300 Flange Dimensions
• Ansi B16.5 Class 400 SS Flange Dimensions
• Class 600 Weld Neck Flange Dimensions In Mm
• Dimension of #900 SS Slip on Flange
• Cl 1500 SS Flange Dimension Table
• SS Class 2500 Flange Dimensions in MM
• ASTM A182 Stainless Steel Forged Flange Application
• How Are Stainless Steel Flanges Made?
• Comparison of SS Flange Manufacturing Methods
• Ss Flange Standard

Stainless Steel Flange Material Specification

Specifications	Stainless Steel Flanges
Flange Common Types By Manufacturer	Forged / Screwed / Plate/ Threaded
EN Standard	25, 6, 16, 40, 10 Bar
DIN Standard	16, 6, 40, 10, 25 Bar / PN64, PN16, PN10, PN6, PN25, PN40
Flange Available Sizes	1/2 - 48 Inch
JIS Standard	30, 20, 16 40, 6, 10, 63 K
UNI Standard	25, 6, 16, 40, 10 Bar
ANSI Standard	Class 150 - 2500 LBS
Flange supporting material	Ring Joint Gasket Flange Bolts
Equipment used	Pushing Machine, electric bevelling machine, Sand-blasting machine, Press machine, Bending machine
Manufacturer of Flange Face Type	Lap Joint Face, Small Male Female, Large Tongue and Groove, Flat Face, Raised Face, Small Tongue, Large Male Female, Ring Joint 316l Stainless Steel Flange Manufacturer and Supplier
Flanges Marking	All Flange are marked as follows: Supplier or Manufacturer’s Name, Class, Dimension, Material, Size, Bore, Heat No.
Technique used by Manufacturer	machined Forged Heat treated
Flange Standards	BS4504, ASME B16.5, B16.48, BS 10, ASME Flanges, EN 1092, ANSI Flanges, BS Flanges, EN Flanges, B16.47 Series A and B, GOST Flanges, DIN Flanges
Tests	UI trasonic flaw detector Hydrostatic testing machine X ray detector Magnetic particle detector Direct reading Spectrograph

Stainless Steel Flange Price List

Manufacturing ASME B16.5 Class 150/ 600/ 900 SS Forged Flange and ASTM A182 Plate Flange for Oil, Gas and Chemical Process Plants

$ 24.59/ PCS

Sa 182 F317l SS Flange Ansi B16.5 Dn100,150# Blrf

$ 1.62/ KGS

Sw Rf, 300#, Ss 40s Bore, Sa/a182gr.f304/304l Flanges

$ 3.01/ KGS

Sealing Flange Stainless Steel D410/156x095

$ 6.56/ KGS

stainless Steel Wn Rf, 150#, Ss 10s Bore, Sa/a182gr.f304/304l

$ 7.75/ PCS

Stainless Steel Flange For 1-1/2 Pipe Enclosure

$ 5.03/ KGS

Flanges Stainless Steel Sa 182 F317l Ansi B16.5 Dn100,150# Sorf

Stainless Steel Pipe Flange Chemical Compostion

SS Grades	Manganese	Silicon	Carbon	Phosphorus	Sulfur	Nickel	Chromium	Molybdenum
302	2	1	0.15	0.045	0.030	8/10	17/19
304	2	1	0.08	0.045	0.030	8/10.50	18/20
304L	2	1	0.03	0.045	0.030	8/12	18/20
309	2	1	0.20	0.045	0.030	12/15	22/24
309S	2	1	0.08	0.045			22/24
310	2	1.5	0.25	0.045	0.030	19/22	24/26
310S	2	1.5	0.08	0.045	0.030	19/22	24/26
316	2	1	0.08	0.045	0.030	10/14	16/18	2/3
316L	2	1	0.03	0.045	0.030	10/14	16/18	2/3
317	2	1/1	0.08	0.045	0.030	11/15	18/20	3/4
317L	2	0.75	0.03	0.045	0.030	11/15	18/20	3/4
321	2	1	0.08	0.040	0.030	9/12	17/19	0.75/0.75
347	2	0.5/1	0.08	0.040	0.030	9/12	17/19	0.5/0.75

Stainless Steel Loose Flange Mechanical Properties

SS Grades	Unified Numbering System	Tensile Strength(ksi) Minimum	Elongation Minimum	Yield Strength (ksi) Minimum	Hardness (Brinell) Maximum	Hardness (Rockwell B) Maximum
302	S30200	75	40% in 2″	30	183	88
304	S30400	75	40% in 2″	30	183	88
304L	S30403	70	40% in 2″	30	183	88
309	S30900	75	40% in 2″	30	217	95
309S	S30908	75	40% in 2″	30	217	95
310	S31000	75	40% in 2″	30	217	95
310S	S31008	75	40% in 2″	30	217	95
316	S31600	75	40% in 2″	30	217	95
316L	S31603	70	35% in 2″	25	217	95
317	S31700	75	35% in 2″	30	217	95
317L	S31703	75	35% in 2″	30	217	95
321	S32100	75	40% in 2″	30	183	88
347	S34700	75	40% in 2″	30	183	88

Equivalent of Schedule 10 Stainless Steel Flanges

Standard	Unified Numbering System	Werkstoff Nr.	Bs	Jis	Gost	European Standards	Afnor
304	S30400	1.4301	304S31	SUS 304	08Х18Н10	X5CrNi18-10	Z7CN18‐09
304L	S30403	1.4306 / 1.4307	3304S11	SUS 304L	03Х18Н11	X2CrNi18-9 / X2CrNi19-11	Z3CN18‐10
304H	S30409	1.4301	–	–	–	–	–
310	S31000	1.4841	310S24	SUS 310	20Ch25N20S2	X15CrNi25-20	–
310S	S31008	1.4845	310S16	SUS 310S	20Ch23N18	X8CrNi25-21	–
316	S31600	1.4401 / 1.4436	316S31 / 316S33	SUS 316	–	X5CrNiMo17-12-2 / X3CrNiMo17-13-3	Z7CND17‐11‐02
316L	S31603	1.4404 / 1.4435	316S11 / 316S13	SUS 316L	03Ch17N14M3 / 03Ch17N14M2	X2CrNiMo17-12-2 / X2CrNiMo18-14-3	Z3CND17‐11‐02 / Z3CND18‐14‐03
316Ti	S31635	1.4571	320S31	SUS 316Ti	08Ch17N13M2T	X6CrNiMoTi17-12-2	Z6CNDT17‐123
317	S31700	1.4449	–	SUS 317	–	–	–
317L	S31703	1.4438	–	SUS 317L	–	X2CrNiMo18-15-4	–
321	S32100	1.4541	–	SUS 321	–	X6CrNiTi18-10	–
321H	S32109	1.4878	–	SUS 321H	–	X12CrNiTi18-9	–
347	S34700	1.4550	–	SUS 347	08Ch18N12B	X6CrNiNb18-10	–
410	S41000	1.4006	410S21	SUS 410	–	X12Cr13	–
446	S44600	1.4762	–	–	–	–	–
904L	N08904	1.4539	904S13	SUS 904L	STS 317J5	X1NiCrMoCu25-20-5	Z2 NCDU 25-20

Astm A182 Stainless Steel Flange Weights

Nominal Pipe Size	Blind	Threaded	Slip On	Lap Joint	Socket Weld	Weld Neck
22	355	185	185	245	185	225
¾	2	2	2	2	2	2
1	2	2	2	2	2	3
14	140	90	90	105	90	114
1¼	3	3	3	3	3	3
½	2	1	1	1	2	2
16	180	98	106	140	98	140
18	220	130	130	160	130	165
1½	4	3	3	3	3	4
8	47	30	30	30	30	42
2	5	5	5	5	5	6
20	285	165	165	195	165	197
3	9	9	9	9	9	11.5
12	123	64	64	64	64	88
3½	13	12	11	11	11	12
6	27	19	19	19	19	26
2½	7	8	8	8	8	10
4	17	13	13	13	13	16.5
5	20	15	15	15	15	21
10	70	43	43	43	43	54
24	430	220	220	275	220	268

Stainless Steel Ansi Flange Pressure Ratings

Temperature (°C)	Class 900	Class 150	Class 400	Class 300	Class 900	Class 600	Class 1500	Class 2500
-29 - 38	155	19.8	68.9	51.7	155	103.4	259	431
100	155	17.7	68.7	51.5	155	103.0	258	429
50	155	19.5	68.9	51.7	155	103.4	259	431
150	151	15.8	66.8	50.2	151	100.3	251	418
475	51.3	3.7	22.8	17.1	51.3	34.2	85.4	142
200	146	13.8	64.8	48.6	146	97.2	243	405
300	129	10.2	57.0	42.9	129	85.7	214	357
250	139	12.1	61.7	46.3	139	92.7	232	386
325	124	9.3	55.0	41.4	124	82.6	207	344
350	120	8.4	53.4	40.0	120	80.0	200	334
400	104	6.5	46.3	34.7	104	69.4	174	290
375	114	7.4	50.4	37.8	114	75.7	189	315
425	86.3	5.5	38.4	28.8	86.3	57.5	144	240
450	69.0	4.6	30.7	23.0	69.0	46.0	115	192
500	34.7	2.8	15.4	11.6	34.7	23.2	57.9	96.5
538	17.7	1.4	7.9	5.9	17.7	11.8	29.5	49.2

Stainless Steel Flange Dimensions In Mm

Check Large Diameter Stainless Steel Flanges and ASTM A182 Orifice Flange dimensions, pressure rating, & price ex Mumbai, Buy SS Puddle Flange at competitive price

Nominal Pipe Size	Thickness of Flange	Outside Diameter of Flange	Diameter of Hub at Base	Diameter of Raised Face	Diameter or Bore		Length Thru Hub			Diameter of Hub at Bevel	Radius of Fillet	Depth of Socket
					Slip-on Socket	Lap Joint	Welding Neck	Slip-On Threaded Socket	Lap Joint
	Q	O	X	R	W	B	Y	Y	Y	H	r	Z
3/4	1/2	3-7/8	1-1/2	1-11/16	1.09	1.11	2-1/16	5/8	5/8	1.05	1/8	7/16
12	1-1/4	19	14-3/8	15	12.88	12.92	4-1/2	2-3/16	2-3/16	12.75	1/2	1-9/16
1	9/16	4-1/4	1-15/16	2	1.36	1.38	2-3/16	11/16	11/16	1.32	1/8	1/2
6	1	11	7-9/16	8-1/2	6.72	6.75	3-1/2	1-9/16	1-9/16	6.63	1/2	1-1/16
1-1/4	5/8	4-5/8	2-5/16	2-1/2	1.70	1.72	2-1/4	13/16	13/16	1.66	3/16	9/16
1-1/2	11/16	5	2-9/16	2-7/8	1.95	1.97	2-7/16	7/8	7/8	1.90	1/4	5/8
16	1-7/16	23-1/2	18	18-1/2	16.16	16.19	5	2-1/2	3-7/16	16.00	1/2	1-3/4
2	3/4	6	3-1/16	3-5/8	2.44	2.46	2-1/2	1	1	2.38	5/16	11/16
1/2	7/16	3-1/2	1-3/16	1-3/8	.88	.90	1-7/8	5/8	5/8	.84	1/8	3/8
18	1-9/16	25	19-7/8	21	18.18	18.20	5-1/2	2-11/16	3-13/16	18.00	1/2	1-15/16
2-1/2	7/8	7	3-9/16	4-1/8	2.94	2.97	2-3/4	1-1/8	1-1/8	2.88	5/16	3/4
3	15/16	7-1/2	4-1/4	5	3.57	3.60	2-3/4	1-3/16	1-3/16	3.50	3/8	13/16
20	1-11/16	27-1/2	22	23	20.20	20.25	5-11/16	2-7/8	4-1/16	20.00	1/2	2-1/8
10	1-3/16	16	12	12-3/4	10.88	10.92	4	1-15/16	1-15/16	10.75	1/2	1-5/16
3-1/2	15/16	8-1/2	4-13/16	5-1/2	4.07	4.10	2-13/16	1-1/4	1-1/4	4.00	3/8	7/8
4	15/16	9	5-5/16	6-3/16	4.57	4.60	3	1-5/16	1-5/16	4.50	7/16	15/16
5	15/16	10	6-7/16	7.5/16	5.66	5.69	3-1/2	1-7/16	1-7/16	5.56	7/16	15/16
8	1-1/8	13-1/2	9-11/16	10-5/8	8.72	8.75	4	1-3/4	1-3/4	8.63	1/2	1-1/4
14	1-3/8	21	15-3/4	16-1/4	14.14	14.18	5	2-1/4	3-1/8	14.00	1/2	1-5/8
24	1-7/8	32	26-1/8	27-1/4	24.25	24.25	6	3-1/4	4-3/8	24.00	1/2	2-1/2

ASTM Standard For Stainless Steel Flanges

Austenitic stainless steels: ASTM A182/ A182M (American Society for Testing and Materials)

ASME Standard For Stainless Steel Flanges

American Society Of Mechanical Engineers: ASME/ANSI B16.5 and ASME/ ASNI SA182

Types Of Stainless Steel Flanges

Stainless Steel Round Flanges

Schedule 10 Spectacle Blind Flange

Stainless Steel Threaded Flange

Asme B16.5 Stainless Steel Ring Joint Flange

900 Lbs Stainless Steel Sorf Flanges

Astm A182 Stainless Steel Blrf Flanges

Class 1500 Asme B16.5 Ss Blind Flange

Ansi 150 Tongue & Groove Flange

Stainless Steel Orifice Flanges

SS Rtj Flanges

5000 Nb Ss Wnrf Flange

Stainless Steel Ansi Flanges

ASTM A182 Stainless Steel Lap Joint Flange

ASME B16.5 Stainless Steel Header Flange

SS Loose Flange

Stainless Steel Rail Flange

SS Orifice Flanges

Class 125 Nipoflange

Ss Reducing Flanges

Class 300 Ss Swrf Flanges

150 Lbs Stainless Steel Socket Weld Flange

Asme Sa182 Ss Screwed Flange

Stainless Steel Rod Flange

Stainless Steel Oval Flange

15 Nb Stainless Steel Weld Neck Flanges

4 Inch Ss Long Weld Neck Flange

Ss Girth Flanges

#600 Astm A182 Ss Slip On Flange

Class 2500 Ss Expander Flanges

Ss Lapped Joint Flange

Stainless Steel Flange Torque Chart

Size in Inch	Size in MM	Number of Bolt	Bolt Diameter	Bolt Stress lb/in2	Torque lbf.ft.	Torque Nm
10	250	12	7/8	40,000	194	263
3/4	20	4	½	30,000	26	36
6	150	8	¾	45,000	137	185
20	500	20	1 1/8	40,000	421	571
1	35	4	½	33,000	29	39
1 ½	40	4	½	50,000	44	60
1/2	15	4	½	25,000	22	30
18	450	16	1 1/8	40,000	421	571
2	50	4	5/8	50,000	86	117
12	300	12	7/8	40,000	194	263
3	80	4	5/8	50,000	86	117
16	400	16	1	40,000	289	392
4	100	8	5/8	40,000	69	93
8	200	8	¾	45,000	137	185
14	350	12	1	41,000	296	401
24	600	20	1 ¼	40,000	588	797

Stainless Steel Flange Thickness

Nominal Pipe Size	Outer Diameter	STD Wall	Schedule 20	Schedule 10	Schedule 30	EXT Hvy	Schedule 40	Schedule 100	Schedule 60	Schedule 80	Schedule 160	Schedule 120	XX Hvy	Schedule 140
½	0.84	0.109		0.083		0.147	0.109			0.147	0.188		0.294
¾	1.05	0.113		0.083		0.154	0.113			0.154	0.219		0.308
1	1.315	0.133		0.109		0.179	0.133			0.179	0.25		0.358
1 ¼	1.66	0.14		0.109		0.191	0.14			0.191	0.25		0.382
1 ½	1.9	0.145		0.109		0.2	0.145			0.2	0.281		0.4
2	2.375	0.154		0.109		0.218	0.154			0.218	0.344		0.436
2 ½	2.875	0.203		0.12		0.276	0.203			0.276	0.375		0.552
3	3.5	0.216		0.12		0.3	0.216			0.3	0.438		0.6
3 ½	4	0.226		0.12		0.318	0.226			0.318			0.636
4	4.5	0.237		0.12		0.337	0.237			0.337	0.531	0.438	0.674
5	5.563	0.258		0.134		0.375	0.258			0.375	0.625	0.5	0.75
6	6.625	0.28		0.134		0.432	0.28			0.432	0.719	0.562	0.864
8	8.625	0.322	0.25	0.148	0.277	0.5	0.322	0.594	0.406	0.5	0.906	0.719	0.875	0.812
10	10.75	0.365	0.25	0.165	0.307	0.5	0.365	0.719	0.5	0.594	1.125	0.844	1	1
12	12.75	0.375	0.25	0.18	0.33	0.5	0.406	0.844	0.562	0.688	1.312	1	1	1.125
14	14	0.375	0.312	0.25	0.375	0.5	0.438	0.938	0.594	0.75	1.406	1.094		1.25
16	16	0.375	0.312	0.25	0.375	0.5	0.5	1.031	0.656	0.844	1.594	1.219		1.438
18	18	0.375	0.312	0.25	0.438	0.5	0.562	1.156	0.75	0.938	1.781	1.375		1.562
20	20	0.375	0.375	0.25	0.5	0.5	0.594	1.281	0.812	1.031	1.969	1.5		1.75
22	22	0.375		0.25		0.5
24	24	0.375	0.375	0.25	0.562	0.5	0.688	1.531	0.969	1.219	2.344	1.812		2.062
26	26	0.375				0.5
30	30	0.375	0.5	0.312	0.625	0.5
36	36	0.375	0.5	0.312	0.625	0.5	0.75
40	40	0.375				0.5
42	42	0.375				0.5
48	48	0.375				0.5

All Types Of Stainless Steel Flange

SS Flange Hsn Code

Description	HSN Code
Stainless Steel Flanges	73072100

150# Ss Flange Dimensions In Mm

Stainless Steel Flanges manufacturer in India offers 6 Inch Steel Pipe Flange at factory price in Mumbai, ASTM A182 Flanges available in various face such as Raised, RTJ, Flat, Tongue and Groove according to ASME B16.5

Nominal Pipe sizes in Inches	Diameter of Flange in inches	Diameter of Bolts in Inches	Number of bolts used	Bolt Circle in Inches	Diameter of Bolt Holes in Inches
1/2	3-1/2	1/2	4	2-3/8	0.62
3/4	3-7/8	1/2	4	2-3/4	0.62
1	4-1/4	1/2	4	3-1/8	0.62
20	27-1/2	1-1/8	20	25	1.25
14	21	1	12	18-3/4	1.12
1/4	3-3/8	1/2	4	2-1/4	0.62
1-1/4	4-5/8	1/2	4	3-1/2	0.62
6	11	3/4	8	9-1/2	0.88
1-1/2	5	1/2	4	3-7/8	0.62
2	6	5/8	4	4-3/4	0.75
12	19	7/8	12	17	1
3	7-1/2	5/8	4	6	0.75
3-1/2	8-1/2	5/8	8	7	0.75
4	9	5/8	8	7-1/2	0.75
18	25	1-1/8	16	22-3/4	1.25
2-1/2	7	5/8	4	5-1/2	0.75
5	10	3/4	8	8-1/2	0.88
8	13-1/2	3/4	8	11-3/4	0.88
10	16	7/8	12	14-1/4	1
16	23-1/2	1	16	21-1/4	1.12
24	32	1-1/4	20	29-1/2	1.38

Stainless Steel Class 300 Flange Dimensions

Nominal Pipe Size in Inch	Diameter of Bolt Holes in inch	Bolt Circle in inch	Number of Bolt used	Diameter of Bolts in inch	Diameter of Flange in inch
20	1.38	27	24	1-1/4	30-1/2
1/2	0.62	2-5/8	4	1/2	3-3/4
5	0.88	9-1/4	8	3/4	11
16	1.38	22-1/2	20	1-1/4	25-1/2
3/4	0.75	3-1/4	4	5/8	4-5/8
1	0.75	3-1/2	4	5/8	4-7/8
3-1/2	0.88	7-1/4	8	3/4	9
1-1/4	0.75	3-7/8	4	5/8	5-1/4
18	1.38	24-3/4	24	1-1/4	28
10	1.12	15-1/4	16	1	17-1/2
1/4	0.62	2-1/4	4	1/2	3-3/8
12	1.25	17-3/4	16	1-1/8	20-1/2
1-1/2	0.88	4-1/2	4	3/4	6-1/8
2	0.75	5	8	5/8	6-1/2
2-1/2	0.88	5-7/8	8	3/4	7-1/2
3	0.88	6-5/8	8	3/4	8-1/4
4	0.88	7-7/8	8	3/4	10
6	0.88	10-5/8	12	3/4	12-1/2
8	1	13	12	7/8	15
14	1.25	20-1/4	20	1-1/8	23
24	1.62	32	24	1-1/2	36

Ansi B16.5 Class 400 SS Flange Dimensions

Nominal Pipe Sizes in Inch	Number of Bolt used	Bolt Circle in inch	Diameter of Flange in inch	Diameter of Bolt Holes in inch	Diameter of Bolts in inch
1/2	4	2-5/8	3-3/4	0.62	1/2
12	16	17-3/4	20-1/2	1.38	1-1/4
3/4	4	3-1/4	4-5/8	0.75	5/8
1	4	3-1/2	4-7/8	0.75	5/8
1-1/2	4	4-1/2	6-1/8	0.88	3/4
10	16	15-1/4	17-1/2	1.25	1-1/8
24	24	32	36	1.88	1-3/4
2	8	5	6-1/2	0.75	5/8
2-1/2	8	5-7/8	7-1/2	0.88	3/4
20	24	27	30-1/2	1.62	1-1/2
3	8	6-5/8	8-1/4	0.88	3/4
3-1/2	8	7-1/4	9	1	7/8
4	8	7-7/8	10	1	7/8
5	8	9-1/4	11	1	7/8
6	12	10-5/8	12-1/2	1	7/8
8	12	13	15	1.12	1
14	20	20-1/4	23	1.38	1-1/4
1/4	4	2-1/4	3-3/8	0.62	1/2
16	20	22-1/2	25-1/2	1.5	1-3/8
1-1/4	4	3-7/8	5-1/4	0.75	5/8
18	24	24-3/4	28	1.5	1-3/8

Class 600 Weld Neck Flange Dimensions In Mm

Nominal Pipe Sizes in Inch	Diameter of Bolt Holes in inch	Number of Bolt Used	Diameter of Bolts in inch	Bolt Circle in inch	Diameter of Flange in inch
12	1.38	20	1-1/4	19-1/4	22
1/4	0.62	4	1/2	2-1/4	3-3/8
1/2	0.62	4	1/2	2-5/8	3-3/4
3/4	0.75	4	5/8	3-1/4	4-5/8
10	1.38	16	1-1/4	17	20
1	0.75	4	5/8	3-1/2	4-7/8
1-1/4	0.75	4	5/8	3-7/8	5-1/4
16	1.62	20	1-1/2	23-3/4	27
1-1/2	0.88	4	3/4	4-1/2	6-1/8
18	1.75	20	1-5/8	25-3/4	29-1/4
2	0.75	8	5/8	5	6-1/2
24	2	24	1-7/8	33	37
2-1/2	0.88	8	3/4	5-7/8	7-1/2
3	0.88	8	3/4	6-5/8	8-1/4
3-1/2	1	8	7/8	7-1/4	9
4	1	8	7/8	8-1/2	10-3/4
5	1.12	8	1	10-1/2	13
6	1.12	12	1	11-1/2	14
8	1.25	12	1-1/8	13-3/4	16-1/2
14	1.5	20	1-3/8	20-3/4	23-3/4
20	1.75	24	1-5/8	28-1/2	32

Dimension of #900 SS Slip on Flange

Nominal Pipe Sizes in Inch	Number of Bolt Used	Diameter of Flange in inch	Bolt Circle in inch	Diameter of Bolts in inch	Diameter of Bolt Holes in inch
3/4	4	5-1/8	3-1/2	3/4	0.88
1-1/4	4	6-1/4	4-3/8	7/8	1
10	16	21-1/2	18-1/2	1-3/8	1.5
1-1/2	4	7	4-7/8	1	1.12
20	20	33-3/4	29-1/2	2	2.12
2	8	8-1/2	6-1/2	7/8	1
2-1/2	8	9-5/8	7-1/2	1	1.12
3	8	9-1/2	7-1/2	7/8	1
16	20	27-3/4	24-1/2	1-5/8	1.75
4	8	11-1/2	9-1/4	1-1/8	1.25
18	20	31	27	1-7/8	2
5	8	13-3/4	11	1-1/4	1.38
1/2	4	4-3/4	3-1/4	3/4	0.88
6	12	15	12-1/2	1-1/8	1.25
1	4	5-7/8	4	7/8	1
8	12	18-1/2	15-1/2	1-3/8	1.5
12	20	24	21	1-3/8	1.5
14	20	25-1/4	22	1-1/2	1.62
24	20	41	35-1/2	2-1/2	2.62

Cl 1500 SS Flange Dimension Table

Nominal Pipe Sizes in Inch	Bolt Circle in inch	Diameter of Bolts in inch	Number of Bolt Used	Diameter of Flange in inch	Diameter of Bolt Holes in inch
1/2	3-1/4	3/4	4	4-3/4	0.88
18	30-1/2	2-3/4	16	36	2.88
24	39	3-1/2	16	46	3.62
3	8	1-1/8	8	10-1/2	1.25
12	22-1/2	2	16	26-1/2	2.12
3/4	3-1/2	3/4	4	5-1/8	0.88
20	32-3/4	3	16	38-3/4	3.12
1	4	7/8	4	5-7/8	1
1-1/4	4-3/8	7/8	4	6-1/4	1
8	15-1/2	1-5/8	12	19	1.75
1-1/2	4-7/8	1	4	7	1.12
16	27-3/4	2-1/2	16	32-1/2	2.62
2	6-1/2	7/8	8	8-1/2	1
2-1/2	7-1/2	1	8	9-5/8	1.12
4	9-1/2	1-1/4	8	12-1/4	1.38
5	11-1/2	1-1/2	8	14-3/4	1.62
6	12-1/2	1-3/8	12	15-1/2	1.5
10	19	1-7/8	12	23	2
14	25	2-1/4	16	29-1/2	2.38

SS Class 2500 Flange Dimensions in MM

Nominal Pipe Sizes in Inch	Bolt Circle in inch	Diameter of Bolt Holes in inch	Diameter of Bolts in inch	Diameter of Flange in inch	Number of Bolt Used
3/4	3-3/4	0.88	3/4	5-1/2	4
1	4-1/4	1	7/8	6-1/4	4
10	21-1/4	2.62	2-1/2	26-1/2	12
1-1/4	5-1/8	1.12	1	7-1/4	4
12	24-3/8	2.88	2-3/4	30	12
1-1/2	5-3/4	1.25	1-1/8	8	4
2	6-3/4	1.12	1	9-1/4	8
1/2	3-1/2	0.88	3/4	5-1/4	4
2-1/2	7-3/4	1.25	1-1/8	10-1/2	8
3	9	1.38	1-1/4	12	8
5	12-3/4	1.88	1-3/4	16-1/2	8
6	14-1/2	2.12	2	19	8
4	10-3/4	1.62	1-1/2	14	8
8	17-1/4	2.12	2	21-3/4	12

ASTM A182 Stainless Steel Forged Flange Application

• Pipeline engineering
• Mechanical engineering
• Oil & gas industry
• Waste water management
• Plant engineering
• Petrochemical industry
• Marine industry
• Aerospace
• Chemical industry
• Food processing industry
• Power industry

How Are Stainless Steel Flanges Made?

Casting, cutting from rolled plate material, and forging are the three basic methods for manufacturing flanges. The basic flange production process, regardless of technique, is processing raw materials and then moulding them to the proper requirements. Flanges are completed to fulfil applicable fit and seal criteria before being packaged and delivered to the customer. We'll go over the three most prevalent flange fabrication procedures and examine their benefits and drawbacks.

Casting

Cutting From Rolled Plate Material

Forging

Comparison of SS Flange Manufacturing Methods

Methods	Plate/Cut	Cast	Forged
Strength	Good	Better	Best
Limiting Material Waste	Good	Better	Best
Cost	Best	Better	Good
Tolerances	Better	Best	Good
Variety of Material & Sizes	Good	Best	Better

Ss Flange Standard

• Korean Flange
• Australian Flanges
• JIS B2220 Flange
• ISO Flanges
• MSS SP-44 Flange
• API Flanges
• GOST 12820 80 Flanges
• EN 1092-1 Flange
• SABS / SANS 1123 Flanges
• BS 4504 Flanges
• AWWA C207 Flanges
• BS 10 Flanges

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