Stainless Steel Flanges manufacturer in India

PN16 ASTM A182 Forged Flanges and DN80 Stainless Steel Plate Flange supplier in Mumbai

What is Stainless Steel Flanges?
Stainless steel is one of the most popular materials and the flanges made with it are widely used in different applications across various industries. The stainless steel flanges possess superior physical properties, like good resistance to corrosion, increased durability, etc. These flanges are used for both industrial and domestic purposes, and they offer the required support to the piping system. Also, one can easily find different grades of stainless steel and they vary in their chemical composition. It means that the properties possessed by different stainless steel grades might also be different. There are several choices of flanges and each has varied applications. To choose the right variety from among these, clients can consider the following four factors:

• Firstly, it is essential to consider the type of fluid conveyed in the pipeline. It would help in choosing the right kind of flange. It is also important to consider the temperature and pressure of the fluid, so that the flange can last long.
• The integrity of the fluid also plays a critical role. For example, industries dealing with toxic fluids would need a flange that is totally leak-proof. Or else, the leak can contaminate the surrounding and can cause other environmental risks. Thus, for such fluids, clients would need a stronger and tighter flange.
• If the pipeline is conveying sensitive fluids, like the ones in pharmaceutical industries, then clients should go for those flanges that would not cause any contamination.

Joints and welds are the critical points in a pipeline and thus, it is essential to thread them carefully. Apart from choosing the right type of stainless steel flanges, it is also important to select the right grade of the fittings, even if it costs a bit more.
The properties of stainless steel flanges are unique and that is what makes them so popular across several industries. They are resistant to corrosion, highly durable, and can effectively withstand high temperatures. They can last for several years and require very less maintenance. They are indeed one of the most cost-effective choices as a piping accessory.

What are Stainless Steel Pipe Flange used for?
There are a wide range of flanges available in the market, and due to their unique structure, each has varied usage.

• Weld neck flange- These are used in applications that involve severe and critical conditions.
• Slip-on flange- They are suitable for low pressure applications.
• Blind flange- They help to seal the ends of a piping system or pressure vessel opening.
• Lap joint flange- These are a type of slip-on flange that comes with stub-end fittings. They are great for piping systems that need regular inspection and maintenance, as they can be disassembled easily.
• Socket weld flange- These are used in small and high pressure pipes.
• Threaded flange- They are used in pipes with threaded ends.
• Orifice flange- They are used for accessing the line that helps to meter liquids or gases.
• Ring-type joint flange- They are mostly used for high temperature and pressure applications. They help reduce the risk of leakages.
• Reducing flange- These help in connecting one pipe to the other.

Stainless Steel Lap Joint Flange Vs Ss Slip On Flange
The Lap joint flanges are a type of slip-on flange that comes with stub-end fittings. They are great for piping systems that need regular inspection and maintenance, as they can be disassembled easily. On the other hand, the slip-on flange is like a ring placed over the end of a pipe. This means, they must be slid into the pipe before welding. They are suitable for low pressure applications.
Thus, it can be said that the stainless Steel Lap Joint Flange is quite similar to the SS slip-on flange, but the main difference is in the curved radius at the bore and face. For the former, there is a place to house the lap-joint stub-ends. Due to these characteristics, they are widely used in places where frequent dismantling of the pipes are required.

How do you measure Stainless Steel Weld Neck Flange?
The stainless steel weld neck flanges square measure the flanges that are designed for joining the piping system through the process of butt fastening. They are a bit high-priced, given their long neck but they are widely used for high stress applications. The neck helps in transferring the stress to the pipe, which reduces the stress concentrating to the end of the WN flange. The bore of these flanges are customized in terms of size according to the bore of the pipe. This helps in easy fitting, and the turbulence and erosion is also reduced.
The weld neck flanges are mostly used in pipes instead of the pressure vessels. They are available in two types, regular and long. Being available in different designs and sizes, they are able to cater to a wide range of applications. The regular ones are used with the buttweld fittings, and it helps in connecting two pipes. The long WN flanges are used with vessel nozzles or equipment, and they are rarely used with pipes. The dimension of the weld neck flange varies with the class; clients can get the full list by asking the manufacturers.

What Grade Of Stainless Steel Plate Flange Will Not Rust?
Stainless steel flanges are popular around the world due to their corrosion resisting properties, but it is essential to remember that different grades of stainless steel offer different levels of corrosion resistance. Grade 304 of stainless steel plate flange is the most resistance to corrosion and thus are not likely to rust. They have a high amount of chromium which is responsible behind this property. Grade 316 is similar to Grade 304, but the former has molybdenum added to its chemical composition, which further enhances the corrosion resistance properties. Even though ferritic and martensitic steel are more affordable compared to the austenitic steel, their corrosion resisting priorities are also lower due to the presence of less chromium and nickel in their chemical composition. Duplex steels can be used in these cases, as they are used to avoid stress corrosion cracking that are mostly associated with the austenitic steel. However, it is essential to remember that even the lower grade of stainless steel will not rust due to the interaction between its alloying elements and the environment.

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Stainless Steel Flanges manufacturer in India

Stainless Steel Flanges manufacturers in India offers wide selection of SS Lap Joint Flanges and ASTM A182 Puddle Flange in Mumbai, check latest price for all grades at a glance

Table of Content

• Stainless Steel Flanges Specification List
• Weight Of Stainless Steel Flanges
• Stainless Steel Flanges Pressure And Temperature Ratings
• Chromium Stainless Steel Flange Dimensions In Mm
• Stainless Steel Flanges Price List
• Ferritic Stainless Steel Flanges Chemical Composition
• Stainless Steel Flanges Mechanical Properties
• Super Ferritic Stainless Steel Flanges Equivalent
• Types Of Stainless Steel Flanges
• Manufacturing Standard of Martensitic Stainless Steel Flange
• ASTM A182 Stainless Steel Flanges Manufacturing Process

• Dimensions of Class 900 Stainless Steel Flanges
• Stainless Steel Slip On Flange Weight
• ASME B16.5 Stainless Steel Slip On Flange Dimensions
• Stainless Steel Blind Flange Dimensions
• Class 150 Stainless Steel Flange Dimensions
• Stainless Steel Class 300 Flange Dimensions
• Dimensions Tolerances Of Stainless Steel Plate Flange
• Stainless Steel Flange HS Code
• Industrial Applications of Class 600 Stainless Steel Flanges
• Hydrostatic test pressure of Stainless Steel Socket Weld Flanges
• Inspection and Testing of Stainless Steel Pipe Flanges

Stainless Steel Flanges Specification List

Size Chart	1/2″(15 NB) to 48″ (1200NB)
Pressure Rating Chart ANSI	150 LBS, 300 LBS, 2500 LBS, 900 LBS, 600 LBS, 1500 LBS
UNI / EN	16Bar 6Bar 40Bar 10Bar 25Bar
Manufacturer of Connect Type/ Flange Face Type	RF, RTJ, FF, LJF, Small Tongue, Large Tongue & Groove
JIS	16 K, 5K, 10 K, 20 K, 30 K, 40 K, 63 K
Coating	Yellow Transparent, Zinc Plated, Anti-rust Paint, Oil Black Paint, Cold and Hot Dip Galvanized
Origin	West Europe / Japan / Indian / USA / Korean
DIN Pressure Calculation	25Bar 40Bar 16Bar 6Bar 10Bar / PN64 PN10 PN25 PN16 PN6 PN40
Manufacturer of	ANSI DIN, GOST, JIS, UNI, BS, AS2129, SABS, NFE, AWWA, EN etc.
Common Types By Manufacturer	Threaded / Screwed / Forged / Plate
Equipment	Press machine, Bending machine, Pushing Machine, Sand-blasting machine, electric bevelling machine etc
Test	Direct-reading Spectrograph, Ultrasonic flaw detector, Magnetic particle detector, X-ray detector, Hydrostatic testing machine
Production Grades	316h SS / 317 SS / 317L SS / 321 SS / 321H SS / 347 SS / 304H SS / 347H SS / 310s SS / 446 SS / 304 SS / 304L SS / 316 SS / 316L SS / 310 SS / 347 SS / 904L SS
Production technique Used By Manufacturer	Heat treated, Forged and machined
Standards Provided By Manufacturer	API7S-43, API605, B16.48, ISO70051, MSS S44, ANSI/ASME B16.5, B16.47 Series A & B, BS4504, BS 10, EN-1092, DIN, API7S-15, JISB2220, BS1560-3.1, ASME/ANSI B16.5/16.36/16.47A/16.47B, EN1092

Biggest SS Flanges stockists, supplier, wholesalers, dealers, stockholders, distributor, importer, exporters and Manufacturer in Mumbai

Weight Of Stainless Steel Flanges

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

Manufacturing ANSI/ ASME B16.5 Class 150/ 600/ 900 Stainless Steel Orifice Flange and ASTM SA182 RTJ Flange for Oil, Gas and Chemical Process Plants

Stainless Steel Flanges Pressure And Temperature Ratings

Temperature °F	Class 150	Class 600	Class 1500	Class 400	Class 900	Class 300	Class 2500
-20 to 100	275	1440	3600	960	2160	720	6000
300	205	1080	2700	720	1620	540	4500
200	230	1200	3000	800	1800	600	5000
400	190	995	2485	660	1490	495	4140
600	140	875	2185	580	1310	435	3640
650	125	860	2150	575	1290	430	3580
500	170	930	2330	620	1395	465	3880
700	110	850	2125	565	1275	425	3540
750	95	830	2075	555	1245	415	3460
850	65	790	1980	530	1190	395	3300
800	80	805	2015	540	1210	405	3360
900	50	780	1945	520	1165	390	3240
950	35	765	1910	510	1145	380	3180
1000	20	640	1605	430	965	320	2675
1100	20	515	1285	345	770	255	2145
1150	20	400	995	265	595	200	1655
1050	20	615	1545	410	925	310	2570
1200	20	310	770	205	465	155	1285
1250	20	225	565	150	340	115	945
1300	20	170	430	115	255	85	715
1400	20	95	240	65	145	50	400
1350	20	125	310	80	185	60	515
1450	15	70	170	45	105	35	285
1500	10	55	135	35	80	25	230

Chromium Stainless Steel Flange Dimensions In Mm

Normal Pipe Size (NPS) Of Flanges	(I.D.) Inside Diameter	Thickness Of Raised Face (RF) (T)	Outside Daimeter (O.D.)	Raised Face (R)	RF (Raised Face)	Holes Of Bolts (B)	H	T1	Thickness Of Flat Face (FF) (T2)	BC (Circle Of Bolt)	Bolts Holes Numbers
1/2	0.88	0.88	3.75	1.38	.063	0.62	1.50	0.50	0.82	2.62	4
1	1.36	1.06	4.88	2.00	.063	0.75	2.12	0.63	1.00	3.50	4
3/4	1.09	1.00	4.62	1.69	.063	0.75	1.88	.056	0.94	3.25	4
1-1/4	1.70	1.06	5.25	2.50	.063	0.75	2.50	0.69	1.00	3.88	4
2	2.44	1.31	6.50	3.62	.063	0.75	3.31	0.82	1.25	5.00	8
1-1/2	1.95	1.19	6.12	2.88	.063	0.88	2.75	0.75	1.13	4.50	4
2-1/2	2.94	1.50	7.50	4.12	.063	0.88	3.94	0.94	1.44	5.88	8
3	3.57	1.69	8.25	5.00	.063	0.88	4.62	1.06	1.63	6.62	8
3-1/2	4.07	1.75	9.00	5.50	.063	0.88	5.25	1.13	1.69	7.25	8
4	4.57	1.88	10.00	6.19	.063	0.88	5.75	1.19	1.82	7.88	8
5	5.66	2.00	11.00	7.31	.063	0.88	7.00	1.32	1.94	9.25	8
18	18.18	3.50	28.00	21.00	.063	1.38	21.00	2.32	3.44	24.75	24
6	6.72	2.06	12.50	8.50	.063	0.88	8.12	1.38	2.00	10.62	12
8	8.72	2.44	15.00	10.62	.063	1.00	10.25	1.56	2.38	13.00	12
10	10.88	2.62	17.50	12.75	.063	1.12	12.62	1.82	2.56	15.25	16
12	12.88	2.88	20.50	15.00	.063	1.25	14.75	1.94	2.82	17.75	16
14	14.14	3.00	23.00	16.25	.063	1.25	16.75	2.06	2.94	20.25	20
20	20.20	3.75	30.50	23.00	.063	1.38	23.12	2.44	3.69	27.00	24
16	16.16	3.25	25.50	18.50	.063	1.38	19.00	2.19	3.19	22.50	20
22	22.22	4.00	33.00	25.25	.063	1.63	25.25	2.57	3.94	29.25	24
24	24.25	4.19	36.00	27.25	.063	1.62	27.62	2.69	4.13	32.00	24

MSS SP-44 4 Inch/ 2 Inch Stainless Steel Reducing Flange/ Tube Flange and ASTM A351 SS Casting Flange manufacturer in India

Stainless Steel Flanges Price List

Stainless Steel Flanges Price Per Piece in India	Price Applicable for jan 2022 to june 2022	Price Applicable for July 2022 to December 2022
1/2 Inch Table E SS Slip On Plate Flange Per Piece	US $6.72	US $8.72
PN16 DN15 1/2" Screwed Stainless Steel Flange 4 Hole, Dia 95mm Per Piece	US $19.57	US $21.57
PN16 DN15 1/2" Slip On Stainless Steel Flange 4 Hole, Dia 95mm Per Piece	US $13.58	US $15.58
PN16 DN25 1" Blank Stainless Steel Flange 4 Hole, Dia 115mm Per Piece	US $28.23	US $30.23
150lb Raised Face Slip-on Flange Stainless Steel Per Piece	$13.56	$15.56

Compare our price with other Stainless Steel Flanges manufacturer in India. This is an approximate Price of 3/8 SS Flange in India. Feel free to contact us latest Stocklist of Schedule 10 stainless steel flanges in Mumbai.

Ferritic Stainless Steel Flanges Chemical Composition

Grade		C	Mn	Si	P	S	Cr	Mo	Ni	N	Ti	Fe
304	min.						18.0		8.0
	max.	0.08	2.0	0.75	0.045	0.030	20.0		10.5	0.10
304L	min.						18.0		8.0
	max.	0.030	2.0	0.75	0.045	0.030	20.0		12.0	0.10
304H	min.	0.04					18.0		8.0
	max.	0.010	2.0	0.75	0.045	0.030	20.0		10.5
316	min.						16.0	2.03.0	10.0
	max.	0.035	2.0	0.75	0.045	0.030	18.0		14.0
316L	min.						16.0	2.03.0	10.0
	max.	0.035	2.0	0.75	0.045	0.030	18.0		14.0
316TI		0.08 max	10.00 14.00	2.0 max	0.045 max	0.030 max	16.00 18.00	0.75 max	2.00 3.00
317		0.08 max	2 max	1 max	0.045 max	0.030 max	18.00 20.00	3.00 4.00				57.845 min
SS 317L		0.035 max	2.0 max	1.0 max	0.045 max	0.030 max	18.00 20.00	3.00 4.00	11.00 15.00			57.89 min
SS 321		0.08 max	2.0 max	1.0 max	0.045 max	0.030 max	17.00 19.00		9.00 12.00	0.10 max	5(C+N) 0.70 max
SS 321H		0.04 0.10	2.0 max	1.0 max	0.045 max	0.030 max	17.00 19.00		9.00 12.00	0.10 max	4(C+N) 0.70 max
347/ 347H		0.08 max	2.0 max	1.0 max	0.045 max	0.030 max	17.00 20.00		9.0013.00
410	min.						11.5
	max.	0.15	1.0	1.00	0.040	0.030	13.5		0.75
446	min.						23.0			0.10
	max.	0.2	1.5	0.75	0.040	0.030	30.0		0.50	0.25
904L	min.						19.0	4.00	23.00	0.10
	max.	0.20	2.00	1.00	0.045	0.035	23.0	5.00	28.00	0.25

Stainless Steel Flanges Mechanical Properties

Grade	Elongation	Density	Yield Strength (0.2%Offset)	Melting Point	Tensile Strength
304/ 304L	35 %	8.0 g/cm3	Psi 30000 , MPa 205	1400 °C (2550 °F)	Psi 75000 , MPa 515
304H	40 %	8.0 g/cm3	Psi 30000 , MPa 205	1400 °C (2550 °F)	Psi 75000 , MPa 515
310 / 310S / 310H	40 %	7.9 g/cm3	Psi 30000 , MPa 205	1402 °C (2555 °F)	Psi 75000 , MPa 515
306/ 316H	35 %	8.0 g/cm3	Psi 30000 , MPa 205	1400 °C (2550 °F)	Psi 75000 , MPa 515
316L	35 %	8.0 g/cm3	Psi 30000 , MPa 205	1399 °C (2550 °F)	Psi 75000 , MPa 515
317	35 %	7.9 g/cm3	Psi 30000 , MPa 205	1400 °C (2550 °F)	Psi 75000 , MPa 515
321	35 %	8.0 g/cm3	Psi 30000 , MPa 205	1457 °C (2650 °F)	Psi 75000 , MPa 515
347	35 %	8.0 g/cm3	Psi 30000 , MPa 205	1454 °C (2650 °F)	Psi 75000 , MPa 515
904L	35 %	7.95 g/cm3	Psi 32000 , MPa 220	1350 °C (2460 °F)	Psi 71000 , MPa 490

Super Ferritic Stainless Steel Flanges Equivalent

STANDARD	AFNOR	UNS	EN	JIS	BS	WERKSTOFF NR.	GOST
304	Z7CN18‐09	S30400	X5CrNi18-10	SUS 304	304S31	1.4301	08Х18Н10
304L	Z3CN18‐10	S30403	X2CrNi18-9 / X2CrNi19-11	SUS 304L	3304S11	1.4306 / 1.4307	03Х18Н11
304H	-	S30409	-	-	-	1.4301	-
310	-	S31000	X15CrNi25-20	SUS 310	310S24	1.4841	20Ch25N20S2
310S	-	S31008	X8CrNi25-21	SUS 310S	310S16	1.4845	20Ch23N18
310H	-	S31009	-	-	-	-	-
316	Z7CND17‐11‐02	S31600	X5CrNiMo17-12-2 / X3CrNiMo17-13-3	SUS 316	316S31 / 316S33	1.4401 / 1.4436	-
316L	Z3CND17‐11‐02 / Z3CND18‐14‐03	S31603	X2CrNiMo17-12-2 / X2CrNiMo18-14-3	SUS 316L	316S11 / 316S13	1.4404 / 1.4435	03Ch17N14M3 / 03Ch17N14M2
316H	-	S31609	-	-	-	1.4401	-
316Ti	Z6CNDT17‐123	S31635	X6CrNiMoTi17-12-2	SUS 316Ti	320S31	1.4571	08Ch17N13M2T
317	-	S31700	-	SUS 317	-	1.4449	-
317L	-	S31703	X2CrNiMo18-15-4	SUS 317L	-	1.4438	-
321	-	S32100	X6CrNiTi18-10	SUS 321	-	1.4541	-
321H	-	S32109	X12CrNiTi18-9	SUS 321H	-	1.4878	-
347	-	S34700	X6CrNiNb18-10	SUS 347	-	1.4550	08Ch18N12B
347H	-	S34709	X6CrNiNb18-12	SUS 347H	-	1.4961	-
904L	Z2 NCDU 25-20	N08904	X1NiCrMoCu25-20-5	SUS 904L	904S13	1.4539	STS 317J5L

Check EN 1092-1 Large Diameter Stainless Steel Flanges and ASTM A240/ A182/ A351 SS Pipe Flange dimensions, pressure rating, & price ex Mumbai

Types Of Stainless Steel Flanges

Ferritic SS Weld Neck Flanges

15 NB Chromium Stainless Steel Long Weld Neck Flange

Ferritic SS SWRF Flanges

150 LBS A182 SS Orifice Flanges

Martensitic Stainless Steel Lapped Joint Flange

SS Screwed Flange

900 LBS Martensitic SS Tongue & Groove Flange

SA182 SS Ring Joint Flange

1500 LBS Austenitic Stainless Steel WNRF Flange

Stainless Steel Forged Flanges

Chromium Nickel SS Girth Flanges

2500 LBS Chromium Nickel SS Reducing Flanges

Martensitic Stainless Steel Spectacle Blind Flange

600 LBS Chromium Stainless Steel Slip On Flange

SS SORF Flanges

ASTM A182 SS Expander Flanges

300 LBS Stainless Steel BLRF Flanges

Austenitic Stainless Steel Threaded Flange

Ferritic SS Blind Flange

5000 NB Ferritic SS Socket Weld Flange

ASME SA182 SS Nipoflange Flanges

316h Stainless Steel Flanges

317 Stainless Steel Flanges

317L Stainless Steel Flanges

321 stainless steel Flanges

321H Stainless Steel Flanges

347 Stainless Steel Flanges

347H Stainless Steel Flanges

304H Stainless Steel Flanges

310s Stainless Steel Flanges

446 Stainless Steel Flanges

SS 321 Flanges

Stainless Steel 304 Flanges

Stainless Steel 304L Flanges

Stainless Steel 316 Flanges

Stainless Steel 316L Flanges

Stainless Steel 310 Flanges

Stainless Steel 347 Flanges

Stainless Steel 904L Flanges

Manufacturing Standard of Martensitic Stainless Steel Flange

• ASME B16.5 Steel pipe flanges dimensioning standard
• ASME B16.47 Steel flanges with a large diameter
• MSS SP 44 Standard for steel pipe line flanges

ASTM A182 Stainless Steel Flanges Manufacturing Process

Dimensions of Class 900 Stainless Steel Flanges

Size in Inch	Size in mm	Flange Thickness	Outer Dia.	Hole Size	RF Stud Length	RF Dia.	No of Bolts	RF Height	Bolt Size UNC	PCD	ISO Stud Size	Weight in kg
		B	A			C		D		E
1/2	15	22.3	120	7/8	110	34.9	4	7	3/4	82.6	M20	1.8
1	25	28.6	150	1	125	50.8	4	7	7/8	101.6	M24	3.6
1 1/4	32	28.6	160	1	125	63.5	4	7	7/8	111.1	M24	4.1
3/4	20	25.4	130	7/8	115	42.9	4	7	3/4	88.9	M20	2.7
1 1/2	40	31.8	180	1 1/8	140	73	4	7	1	123.8	M27	5.9
2	50	38.1	215	1	145	92.1	8	7	7/8	165.1	M24	10.1
3	80	38.1	240	1	145	127	8	7	7/8	190.5	M24	13
4	100	44.5	290	1 1/4	170	157.2	8	7	1 1/8	235	M30	24.5
2 1/2	65	41.3	245	1 1/8	160	104.8	8	7	1	190.5	M27	16
5	125	50.8	350	1 3/8	190	185.7	8	7	1 1/4	279.4	M33	39.5
20	500	108	855	2 1/8	350	584.2	20	7	2	749.3	M52	463
6	150	55.6	380	1 1/4	190	215.9	12	7	1 1/8	317.5	M30	53
8	200	63.5	470	1 1/2	220	269.9	12	7	1 3/8	393.7	M36	91
10	250	69.9	545	1 1/2	235	323.8	16	7	1 3/8	469.9	M36	132
14	350	85.8	640	1 5/8	275	412.8	20	7	1 1/2	558.8	M39	237
16	400	88.9	705	1 3/4	285	469.9	20	7	1 5/8	616	M42	273
12	300	79.4	610	1 1/2	255	381	20	7	1 3/8	533.4	M36	189
18	450	101.6	785	2	325	533.4	20	7	1 7/8	685.8	M48	367
24	600	139.7	1040	2 5/8	440	692.2	20	7	2 1/2	901.7	M64	875

Stainless Steel Slip On Flange Weight

DN (mm)	NPS (Inches)	FLANGE THICKNESS D MM	FLANGE OD A MM	SLIP ON FLANGE WEIGHT (KGS)
15	1/ 2	11.2	88.9	0.4
20	3/ 4	12.7	98.6	0.6
32	1 1/ 4	15.7	117.3	1
25	1	14.2	108	0.8
40	1 1/ 2	17.5	127	1.3
50	2	19.1	152.4	2.1
65	2 1/ 2	22.4	177.8	3.3
80	3	23.9	190.5	3.9
90	3 1/ 2	23.9	215.9	4.8
100	4	23.9	228.6	5.3
125	5	23.9	254	6.1
150	6	25.4	279.4	7.5
200	8	28.4	342.9	12.1
250	10	30.2	406.4	16.5
300	12	31.8	482.6	26.2
350	14	35.1	533.4	34.6
400	16	36.6	596.9	44.8
450	18	39.6	635	48.9
500	20	42.9	698.5	61.9
600	24	47.8	812.8	86.9

ASME B16.5 Stainless Steel Slip On Flange Dimensions

Size in Inch	Size in mm	No of Bolts	Outer Dia.	Hub OD	ISO Stud Size	Flange Length	RF Height	Flange Thick.	RF Dia.	PCD	Hole Size	Socket Bore	Weight in kg
			A	C		D	F	B	E	G		H
1/2	15	4	90	30	M14	14	2	9.6	34.9	60.3	5/8	22.2	0.8
1	25	4	110	49	M14	16	2	12.7	50.8	79.4	5/8	34.5	0.9
3/4	20	4	100	38	M14	14	2	11.2	42.9	69.9	5/8	27.7	0.9
1 1/4	32	4	115	59	M14	19	2	14.3	63.5	88.9	5/8	43.2	1.4
2	50	4	150	78	M16	24	2	17.5	92.1	120.7	3/4	61.9	2.3
1 1/2	40	4	125	65	M14	21	2	15.9	73	98.4	5/8	49.5	1.4
2 1/2	65	4	180	90	M16	27	2	20.7	104.8	139.7	3/4	74.6	3.2
3	80	4	190	108	M16	29	2	22.3	127	152.4	3/4	90.7	3.7
4	100	8	230	135	M16	32	2	22.3	157.2	190.5	3/4	116.1	5.9
3 1/2	90	8	215	122	M16	30	2	22.3	139.7	177.8	3/4	103.4	5
5	125	8	255	164	M20	35	2	22.3	185.7	215.9	7/8	143.8	6.8
8	200	8	345	246	M20	43	2	27	269.9	298.5	7/8	221.5	13.7
10	250	12	405	305	M24	48	2	28.6	323.8	362	1	276.2	19.5
6	150	8	280	192	M20	38	2	23.9	215.9	241.3	7/8	170.7	8.6
12	300	12	485	365	M24	54	2	30.2	381	431.8	1	327	29
24	600	20	815	663	M33	81	2	46.1	692.2	749.3	1 3/8	616	100
16	400	16	595	457	M27	62	2	35	469.9	539.8	1 1/8	410.5	54
18	450	16	635	505	M30	67	2	38.1	533.4	577.9	1 1/4	461.8	59
14	350	12	535	400	M27	56	2	33.4	412.8	476.3	1 1/8	359.2	41
20	500	20	700	559	M30	71	2	41.3	584.2	635	1 1/4	513.1	75

Stainless Steel Blind Flange Dimensions

Size in Inch	Size in mm	ISO Stud Size	RF Height	Outer Dia.	RF Dia.	Hole Size	PCD	No of Bolts	Bolt Size UNC	Flange Thickness	RF Stud Length	Weight in kg
			D	A	C		E			B
1/2	15	M20	7	135	34.9	7/8	88.9	4	3/4	30.2	120	3.2
3/4	20	M20	7	140	42.9	7/8	95.2	4	3/4	31.8	125	3.7
1	25	M24	7	160	50.8	1	108	4	7/8	35	140	5
1 1/4	32	M27	7	185	63.5	1 1/8	130.2	4	1	38.1	150	7.8
1 1/2	40	M30	7	205	73	1 1/4	146	4	1 1/8	44.5	170	10.5
2	50	M27	7	235	92.1	1 1/8	171.4	8	1	50.9	180	18
2 1/2	65	M30	7	265	104.8	1 1/4	196.8	8	1 1/8	57.2	195	25.5
3	80	M33	7	305	127	1 3/8	228.6	8	1 1/4	66.7	220	39
4	100	M39	7	355	157.2	1 5/8	273	8	1 1/2	76.2	255	61.5
5	125	M45	7	420	185.7	1 7/8	323.8	8	1 3/4	92.1	300	102
6	150	M52	7	485	215.9	2 1/8	368.3	8	2	108	345	157
8	200	M52	7	550	269.9	2 1/8	438.2	12	2	127	380	241
10	250	M64	7	675	323.8	2 5/8	539.8	12	2 1/2	165.1	490	470
12	300	M72	7	760	381	2 7/8	619.1	12	2 3/4	184.2	540	575

Class 150 Stainless Steel Flange Dimensions

Size in Inch	RF Dia.	Size in mm	Machine Bolt Length	Flange Thickness	ISO Stud Size	PCD	No of Bolts	Bolt Size UNC	Outer Dia.	RF Height	RF Stud Length	Hole Size	Weight in kg
	C			B		E			A	D
1/2	34.9	15	50	9.6	M14	60.3	4	1/2	90	2	55	5/8	0.9
1	50.8	25	55	12.7	M14	79.4	4	1/2	110	2	65	5/8	0.9
1 1/4	63.5	32	55	14.3	M14	88.9	4	1/2	115	2	70	5/8	1.4
3/4	42.9	20	50	11.2	M14	69.9	4	1/2	100	2	65	5/8	0.9
1 1/2	73	40	65	15.9	M14	98.4	4	1/2	125	2	70	5/8	1.8
2	92.1	50	70	17.5	M16	120.7	4	5/8	150	2	85	3/4	2.3
3	127	80	75	22.3	M16	152.4	4	5/8	190	2	90	3/4	4.1
3 1/2	139.7	90	75	22.3	M16	177.8	8	5/8	215	2	90	3/4	5.9
4	157.2	100	75	22.3	M16	190.5	8	5/8	230	2	90	3/4	7.7
5	185.7	125	85	22.3	M20	215.9	8	3/4	255	2	95	7/8	9.1
2 1/2	104.8	65	75	20.7	M16	139.7	4	5/8	180	2	90	3/4	3.2
6	215.9	150	85	23.9	M20	241.3	8	3/4	280	2	100	7/8	11.8
8	269.9	200	90	27	M20	298.5	8	3/4	345	2	110	7/8	20.5
10	323.8	250	100	28.6	M24	362	12	7/8	405	2	115	1	32
12	381	300	100	30.2	M24	431.8	12	7/8	485	2	120	1	50
14	412.8	350	115	33.4	M27	476.3	12	1	535	2	135	1 1/8	64
16	469.9	400	115	35	M27	539.8	16	1	595	2	135	1 1/8	82
18	533.4	450	125	38.1	M30	577.9	16	1 1/8	635	2	145	1 1/4	100
20	584.2	500	140	41.3	M30	635	20	1 1/8	700	2	160	1 1/4	130
24	692.2	600	150	46.1	M33	749.3	20	1 1/4	815	2	170	1 3/8	196

Stainless Steel Class 300 Flange Dimensions

Size in Inch	PCD	Flange Thickness	RF Stud Length	RF Dia.	RF Height	ISO Stud Size	Outer Dia.	No of Bolts	Machine Bolt Length	Bolt Size UNC	Hole Size	Size in mm	Weight in kg
	E	B		C	D		A
1/2	66.7	12.7	65	34.9	2	M14	95	4	55	1/2	5/8	15	1.4
1	88.9	15.9	75	50.8	2	M16	125	4	65	5/8	3/4	25	1.4
1 1/4	98.4	17.5	85	63.5	2	M16	135	4	70	5/8	3/4	32	1.8
3/4	82.6	14.3	75	42.9	2	M16	115	4	65	5/8	3/4	20	1.4
1 1/2	114.3	19.1	90	73	2	M20	155	4	75	3/4	7/8	40	2.7
2	127	20.7	90	92.1	2	M16	165	8	75	5/8	3/4	50	3.7
3	168.3	27	110	127	2	M20	210	8	90	3/4	7/8	80	7.3
2 1/2	149.2	23.9	100	104.8	2	M20	190	8	85	3/4	7/8	65	5.5
3 1/2	184.2	28.6	110	139.7	2	M20	230	8	95	3/4	7/8	90	9.6
4	200	30.2	115	157.2	2	M20	255	8	95	3/4	7/8	100	12.3
5	235	33.4	120	185.7	2	M20	280	8	110	3/4	7/8	125	15.9
8	330.2	39.7	140	269.9	2	M24	380	12	120	7/8	1	200	36
6	269.9	35	120	215.9	2	M20	320	12	110	3/4	7/8	150	22.7
10	387.4	46.1	160	323.8	2	M27	445	16	140	1	1 1/8	250	57
14	514.4	52.4	180	412.8	2	M30	585	20	160	1 1/8	1 1/4	350	113
12	450.8	49.3	170	381	2	M30	520	16	145	1 1/8	1 1/4	300	84
16	571.5	55.6	190	469.9	2	M33	650	20	165	1 1/4	1 3/8	400	134
20	685.8	62	205	584.2	2	M33	775	24	185	1 1/4	1 3/8	500	230
18	628.6	58.8	195	533.4	2	M33	710	24	170	1 1/4	1 3/8	450	181
24	812.8	68.3	230	692.2	2	M39	915	24	205	1 1/2	1 5/8	600	359

Dimensions Tolerances Of Stainless Steel Plate Flange

Flange		Tolerance Table
D	Inside Diameter (I.D.)	10" and smaller: ±1/32" (0.8 mm) 12" thru 18": +1/8" (3.2 mm) 20" and larger: -1/16" (1.6 mm)
K	Length of hub	10" and smaller: ±1/16" (1.6 mm) 12" and larger: ±1/8" (3.2 mm)
B	Diameter of contact face	1/16" raised face: ±1/32" (0.8 mm) 1/4" RF (Raised Face), T/G (Tongue & Groove), (male & female), (m/f): ±1/64" (0.4 millimeter)
A	O.D. (Outside Diameter)	When O.D. (Outside Diameter) is 24" or less: ±1/16" (1.6 millimeter) When O.D. (Outside Diameter) is over 24": ±1/8" (3.2 millimeter)
J	Diameter of hub at base	When hub base is 24" or smaller: ±1/16" (1.6 millimeter) When hub base is over 24": ±1/8" (3.2 millimeter)
P	Drilling	Circle Bolts: ±1/16" (1.6 mm) Bolts hole spacing: ±1/32" (0.8 mm)
	Eccentricity of bolt circle with respect to facing	2 1/2" and smaller ±1/32" (0.8 mm) maximum 3" and larger ±1/16" (1.6 mm) maximum
H	Diameter of hub at point of welding	5" and smaller: +3/32" (2.4 mm), -1/32" (0.8 mm) 6" and larger: +5/32" (4.0 mm), -1/32 (0.8 mm)
C	Thickness	18" and smaller: ±1/8" (3.2 mm), -0" 20" and larger: ±3/16" (4.8 mm), -0"

Stainless Steel Flange HS Code

HS Code

73072100

FLANGES OF STAINLESS STEEL

Industrial Applications of Class 600 Stainless Steel Flanges

• Paper & Pulp
• Refineries
• Nuclear Power
• Power Plants
• Marine Applications
• Fossil Fuel Power Plants
• Ship Building
• Oil And Gas Industry

Hydrostatic test pressure of Stainless Steel Socket Weld Flanges

ASTM Specification	Class
	150	300	400	600	900	1500	2500
A182-F304 A182-F304H	425	1100	1450	2175	3250	5400	9000

1 psi (lb/in2) = 6,894.8 Pa (N/m2)

Inspection and Testing of Stainless Steel Pipe Flanges

• Direct-reading Spectrograph
• UI trasonic flaw detector
• Hydrostatic testing machine
• X-ray detector
• Magnetic particle detector
• Flattening Test
• PMI Testing
• Hardness Test
• Pitting Resistance Test
• Flaring Test