Stainless Steel Flanges manufacturer in India and Forged/Plate Flange

SS Forged Flanges and ASTM A182 Plate Flange supplier in Mumbai

Flanges are used to connect 2 pipes or tubes of different or the same size together. They are available in various materials, stainless steel being one of the most common ones. ASTM A182 SS Flange offers benefits such as high tensile strength, corrosion and temperature resistance, elegant appearance, and being environmentally friendly. As per Stainless Steel Flanges Manufacturer In India these flanges are said to be durable, with a low maintenance cost, and easy to weld and form. Large Diameter Stainless Steel Flanges eliminate the need for the pipe to be welded. Painting and blasting of ASME SA182 Forgings Material are not necessary.

High Pressure Stainless Steel Flanges can be classified into 2 types ferritic and austenitic. The ferritic AWWA C207 SS Pipe Flange has some magnetic properties along with ductility, and resistance to stress corrosion cracking and thermal fatigue. The austenitic 3 Inch SS Flange is identified via the addition of nickel. The ferritic Stainless Steel Plate Flanges are used in furnaces, petrochemical industries, and heat exchangers. Whereas, austenitic Stainless Steel Forged Flanges are used in food preparation equipment, laboratory benches, textile, boat fittings, chemical processing, and creep resistance.

Class 150 Stainless Steel Split Flanges can be used in various temperatures however as the temperature increases the pressure rating of this class decreases. EN 1092-1 Stainless Steel Mechanical Joint Flanges are also available in martensitic and duplex types as well. EN 1092-1 Type 02 SS Header Flange is used to connect pipes and is welded with overlap weld. Stainless Pipe Flanges have good corrosion resistance properties and low carbon content. Forged Stainless Steel Flanges are produced by using a forging process where mechanical energy is used to change the shape when in the solid state. 2 Inch Stainless Steel Flange offers simple fitting, repair, and replacement of these flanges.

Table Of Content:

SS Flange Specification
Stainless Steel Flanges Grade Types
SS Flange Price
ANSI B16.5 SS Flange Dimensions In Mm
Stainless Steel Flange Types
Weight Of Stainless Steel Flanges
Steel Flange Pressure Rating Chart
Stainless Flange Bolts Chart
Stainless Steel Pipe Flange Sizes
Stainless Steel Floor Flange Tolerance
Gasket Of Forged Stainless Steel Flanges
6 Inch Steel Pipe Flange Application
SS Pipe Flange Heat Treating
PN16 Stainless Steel Flanges Equivalent
ASME B16.5 SS Flange Standard
Stainless Steel Flange Types
HS Code For Flange SS

Stainless Steel Blind Flange Dimensions
Stainless Steel Slip On Flange Dimensions
Stainless Steel Weld Neck Flange Dimensions
Stainless Steel Forged Flanges Face Types
EN 1092-1 Large Diameter Stainless Steel Flanges Bore Dimensions
Marking Of BS 4504 High Pressure Stainless Steel Flanges
AWWA C207 SS Flange Wood Packaging Boxes
Class 150 Stainless Steel Flange Pressure Rating
Class 300 Stainless Steel Flange Pressure Rating
3 Inch SS Flange Measurement
Advantages Of Stainless Steel Mechanical Joint Flanges

SS Flange Specification

Manufacturer Specifications	ASTM A182 Stainless Steel Flanges
Different Types Of SS Flanges	Blind/ Slip On/ Weld Neck/ Socket Weld/ RTJ/ Lap Joint/ Threaded/ Reducing Flanges
Thickness	SCH 5S/ SCH 10/ SCH 40/ SCH 80/ SCH 120/ SCH 160/ SCH 180 To XXS.
SS Flanges Dimensions Or Standard	EN 1092-1/ EN 1092-2/ DIN 2561/ P235GH/ API/ DIN 2501/ DIN 2527
Size	NPS 1⁄₂" To NPS 48”
Face Type	Ring Type Joint/ Raised Face/ Flat Face
Available Gared	ASTM A182 F304 & F304L/ ASTM A182 F316 & F316L/ ASTM A182 F321/ ASTM A182 F347.
Flange Forging Methods	Forging/ Casting/ Rolling And Cutting
Pressure Class	Class 150/ Class 300/ Class 400/ Class 600/ Class 600/ Class 900/ Class 1500/ Class 2500.

Stainless Steel Flanges Grade Types

Stainless Steel 304 Flanges

Stainless Steel 304L Flanges

Stainless Steel 316 Flanges

Stainless Steel 316L Flanges

Stainless Steel 321 Flanges

Stainless Steel 347 Flanges

Buy Large Diameter Stainless Steel Plate Flanges At The Lowest Cost, Check Online ASME SA182 Stainless Steel Forged Flanges Material Price List, Grade And Standards AS Per ANSI B16.5

SS Flange Price

Type Of Flange	Size	SCH	Class	Material	Price In INR (India) Per Piece
Blind Flange	3/4	SCH 40	150	Stainless Steel	150.00
Blind	1"	SCH 40	150	-	248.00
Blind	1-1/2"	SCH 40	150	-	399.00
Blind	2"	SCH 40	150	-	523.00
Blind	3"	SCH 40	150	-	650.00
Blind	4"	SCH 40	150	-	968.00
Weld Neck Flange	1/3"	SCH STD	150	-	274.00
Weld Neck	1"	SCH STD	150	-	389.00
Weld Neck	2"	SCH STD	150	-	635.00
Weld Neck	3"	SCH STD	150	Stainless Steel	847.00
Weld Neck	4"	SCH STD	300	-	944.00
Weld Neck	6"	SCH 80	300	-	1199.00
Slip On Flange	3/4"	SCH 40	150	-	184.00
Slip On	1"	SCH 40	150	-	294.00
Slip On	2"	SCH 40	150	-	403.00
Slip On	3"	SCH 40	150	Stainless Steel	350.00
Slip On	4"	SCH 40	150	-	533.00
Slip On	6"	SCH 40	150	-	873.00
Slip On	8"	SCH 80	300	-	1342.00
Socket Weld Flange	3/4"	SCH XS	150	Stainless Steel	183.00
Socket Weld	1"	SCH XS	150	-	245.00
Socket Weld	1-1/2”	SCH XS	150	-	399.00
Socket Weld	1”	SCH XS	150	-	500.00
Socket Weld	2”	SCH XS	150	Stainless Steel	649.00

One Of India’s Largest Manufacturer Of Stainless Steel Flanges In India. For final SS Flanges Price List Please Call on +91-9987870874 or drop an Email to info@fastwell.in.

Find Class 150 Forged Stainless Steel Flanges Dimensions/ Weight/ Pressure Rating/ Thickness Calculation/ Bolt Chart Here

ANSI B16.5 SS Flange Dimensions In Mm

NPS	(O.D.) For Outside Diameter	Minimum (Wall Thickness) (T)	Diameter Of Raised Face (RF) (R)	Number of Bolts Holes	Dia. of Holes	B.C. For (Bolt Circle)	SORF Bore I.D. (SB)	WNRF Bore I.D. (WB)	Diameter Of Hub Base (H.B.)	Diameter of Hub Top (H.T.)	SORF Length (S.L.)	WNRF Length (W.L.)
¹⁄₂	3.50	0.38	1.38	4	0.62	2.38	0.88	0.62	1.19	0.84	0.56	1.81
³⁄₄	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
1¹⁄₄	4.62	0.56	2.50	4	0.62	3.50	1.70	1.38	2.31	1.66	0.75	2.19
1¹⁄₂	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
2¹⁄₂	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
3¹⁄₂	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

Stainless Steel Flange Types

Stainless Steel Blind Flanges

Stainless Steel Slip On Flanges

Stainless Steel Weld Neck Flanges

Stainless Steel Socket Weld Flanges

Stainless Steel Plate Flanges

Stainless Steel Lap Joint Flanges

Stainless Steel Threaded Flanges

Stainless Steel Raised Face Flanges

Stainless Steel RTJ Flanges

Stainless Steel Puddle Flange

Stainless Steel Spectacle Blind Flange

Stainless Steel Orifice Flanges

Stainless Steel Flat Face Flange

Stainless Steel Long Weld Neck Flanges

Stainless Steel Square Flange

Weight Of Stainless Steel Flanges

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

Steel Flange Pressure Rating Chart

Temperature In °F	150# According To ASME B16.5	300# According To ASME B16.5	400# According To ASME B16.5	600# According To ASME B16.5	900# According To ASME B16.5	1500# According To ASME B16.5	2500# According To ASME B16.5
-20 to 100	275	720	960	1440	2160	3600	6000
200	230	600	800	1200	1800	3000	5000
300	205	540	720	1080	1620	2700	4500
400	190	495	660	995	1490	2485	4140
500	170	465	620	930	1395	2330	3880
600	140	435	580	875	1310	2185	3640
650	125	430	575	860	1290	2150	3580
700	110	425	565	850	1275	2125	3540
750	95	415	555	830	1245	2075	3460
800	80	405	540	805	1210	2015	3360
850	65	395	530	790	1190	1980	3300
900	50	390	520	780	1165	1945	3240
950	35	380	510	765	1145	1910	3180
1000	20	320	430	640	965	1605	2675
1050	20	310	410	615	925	1545	2570
1100	20	255	345	515	770	1285	2145
1150	20	200	265	400	595	995	1655
1200	20	155	205	310	465	770	1285
1250	20	115	150	225	340	565	945
1300	20	85	115	170	255	430	715
1350	20	60	80	125	185	310	515
1400	20	50	65	95	145	240	400
1450	15	35	45	70	105	170	285
1500	10	25	35	55	80	135	230

Stainless Flange Bolts Chart

Size in (Inches)	Size in (Millimeter)	Number of Bolts	Bolt (UNC) Size	RF (Raised Face) Stud Length	Stud (ISO) Size	Machine Flange Bolt Length
1/2	15	4	1/2	55	M14	50
3/4	20	4	1/2	65	M14	50
1	25	4	1/2	65	M14	55
1 1/4	32	4	1/2	70	M14	55
1 1/2	40	4	1/2	70	M14	65
2	50	4	5/8	85	M16	70
2 1/2	65	4	5/8	90	M16	75
3	80	4	5/8	90	M16	75
3 1/2	90	8	5/8	90	M16	75
4	100	8	5/8	90	M16	75
5	125	8	3/4	95	M20	85
6	150	8	3/4	100	M20	85
8	200	8	3/4	110	M20	90
10	250	12	7/8	115	M24	100
12	300	12	7/8	120	M24	100
14	350	12	1	135	M27	115
16	400	16	1	135	M27	115
18	450	16	1 1/8	145	M30	125
20	500	20	1 1/8	160	M30	140
24	600	20	1 1/4	170	M33	150

Stainless Steel Pipe Flange Sizes

(NPS) For Nominal Pipe Size In (inches)	As Per ASME B16.5 Class 150
(NPS) For Nominal Pipe Size In (inches)	Flange Diameter In (inch)	Bolts Number	Bolt Diameter In (inch)	Bolt Holes (B.H.) Diameter In (inch)	Bolt Circle (B.C.) In(inch)
1/4	3-3/8	4	1/2	0.62	2-1/4
1/2	3-1/2	4	1/2	0.62	2-3/8
3/4	3-7/8	4	1/2	0.62	2-3/4
1	4-1/4	4	1/2	0.62	3-1/8
1-1/4	4-5/8	4	1/2	0.62	3-1/2
1-1/2	5	4	1/2	0.62	3-7/8
2	6	4	5/8	0.75	4-3/4
2-1/2	7	4	5/8	0.75	5-1/2
3	7-1/2	4	5/8	0.75	6
3-1/2	8-1/2	8	5/8	0.75	7
4	9	8	5/8	0.75	7-1/2
5	10	8	3/4	0.88	8-1/2
6	11	8	3/4	0.88	9-1/2
8	13-1/2	8	3/4	0.88	11-3/4
10	16	12	7/8	1	14-1/4
12	19	12	7/8	1	17
14	21	12	1	1.12	18-3/4
16	23-1/2	16	1	1.12	21-1/4
18	25	16	1-1/8	1.25	22-3/4
20	27-1/2	20	1-1/8	1.25	25
24	32	20	1-1/4	1.38	29-1/2

Largest PN16 High Pressure Stainless Pipe Flanges manufacturer & exporter In India, We Offer AWWA C207 SS Pipe Flange In Almost All Sizes And Schedule

Stainless Steel Floor Flange Tolerance

Stainless Steel Flanges	Type Of Daimeter	Tolerance List
(A)	(O.D.) For Outside Diameter	When Outside Diameter is 24 Inch or less: ±1/16" (1.6 mm) When Outside Diameter is over 24": ±1/8" (3.2 mm)
(D)	(I.D.) For Inside Diameter	10 Inch and smaller: ±1/32" (0.8 in mm) 12 Inch thru 18": +1/8" (3.2 in mm) 20 Inch and larger: -1/16" (1.6 in mm)
(B)	Contact Face	1/16" (RF): ±1/32" (0.8 mm) 1/4" (RF), Tongue & Groove (male & female): ±1/64" (0.4 mm)
(J)	Hub At Base Daimeter	When hub base is 24 inch or smaller: ±1/16" (1.6 mm) When hub base is over 24": ±1/8" (3.2 mm)
(H)	Diameter of hub at point of welding	5 inch and smaller: +3/32" (2.4 mm), -1/32" (0.8 mm) 6 inch and larger: +5/32" (4.0 mm), -1/32 (0.8 mm)
(P)	Drilling	Bolt circle (BC): ±1/16" (1.6 mill.) Bolt hole (BH) spacing: ±1/32" (0.8 mill.)
	Eccentricity of bolt circle (bc) with respect to facing	2 1/2" and smaller ±1/32" (0.8 mm) maximum 3" and larger ±1/16" (1.6 mm) maximum
(C)	Wall Thickness	18 inch and smaller: ±1/8" (3.2 mill.), -0" 20 inch and larger: ±3/16" (4.8 mill.), -0"
(K)	hub Length	10 Inch and smaller: ±1/16" (1.6 mm) 12 Inch and larger: ±1/8" (3.2 mm)

Gasket Of Forged Stainless Steel Flanges

NPS For (Normal Pipe Size)	Gasket (I.D.) Inside Daimeter	Gasket (O.D.) Outside Daimeter
NPS For (Normal Pipe Size)	Gasket (I.D.) Inside Daimeter	#150LB	#300LB	#400LB	#600LB	#900LB
1/2"	0.84	1.875	2.125	2.125	2.125	2.50
3/4"	1.06	2.25	2.625	2.625	2.625	2.75
1"	1.31	2.625	2.875	2.875	2.875	3.125
1 1/4"	1.66	3	3.25	3.25	3.25	3.50
1 1/2"	1.91	3.375	3.75	3.75	3.75	3.875
2"	2.38	4.125	4.375	4.375	4.375	5.625
2 1/2"	2.88	4.875	5.125	5.125	5.125	6.50
3"	3.50	5.375	5.875	5.875	5.875	6.625
4"	4.50	6.875	7.125	7.00	7.625	8.125
5"	5.56	7.75	8.50	8.375	9.50	9.75
6"	6.62	8.75	9.875	9.75	10.50	11.375
8"	8.62	11	12.125	12.00	12.625	14.125
10"	10.75	13.375	14.25	14.125	15.75	17.125
12"	12.75	16.125	16.625	16.50	18.00	19.625

6 Inch Steel Pipe Flange Application

Stainless Steel Flanges For Power Plants
ASTM A182 SS Flange For Fluid Piping
Large Diameter Stainless Steel Flanges For Dairy And Food Processing
High Pressure Stainless Steel Flanges For Pulp And Paper Industry
Stainless Steel Plate Flanges For Oil And Gas Industry
Stainless Steel Forged Flanges For Heat Exchanger
Stainless Pipe Flanges For Pharmaceutical Processing Industry
2 Inch Stainless Flange For Modern Architecture

SS Pipe Flange Heat Treating

Grade Name	Type Of Heat	Solutioning And Austenitizing	Cooling	Quenching	Tempering
	Treat Types	Temp., min. (°F)	Media	Cool	Temperature
Stainless Steel 304 Flanges	Solution	1900 [1040]		Liquid		500 [260]	B
	treat and
	quench
Stainless Steel 304L Flanges	Solution	1900 [1040]		Liquid		500 [260]	B
	treat and
	quench
Stainless Steel 316 Flanges	Solution	1900 [1040]	Liquid	500 [260]	B
	treat and
	quench
Stainless Steel 316L Flanges	Solution	1900 [1040]	Liquid	500 [260]	BB
	treat and
	quench
Stainless Steel 321 Flanges	Solution	1900 [1040]	Liquid	500 [260]
	treat and
	quench
Stainless Steel 347 Flanges	Solution	1900 [1040]	liquid	500 [260]	B
	treat and
	quench

PN16 Stainless Steel Flanges Equivalent

STANDARD	JIS	BS	GOST	AFNOR	EN	WERKSTOFF NR.	UNS
Stainless Steel 304 Flanges	SUS 304	304S31	08Х18Н10	Z7CN18‐09	X5CrNi18-10	1.4301	S30400
Stainless Steel 304L Flanges	SUS 304L	3304S11	03Х18Н11	Z3CN18‐10	X2CrNi18-9 / X2CrNi19-11	1.4306 / 1.4307	S30403
Stainless Steel 316 Flanges	SUS 316	316S31 / 316S33	–	Z7CND17‐11‐02	X5CrNiMo17-12-2 / X3CrNiMo17-13-3	1.4401 / 1.4436	S31600
Stainless Steel 316L Flanges	SUS 316L	316S11 / 316S13	03Ch17N14M3 / 03Ch17N14M2	Z3CND17‐11‐02 / Z3CND18‐14‐03	X2CrNiMo17-12-2 / X2CrNiMo18-14-3	1.4404 / 1.4435	S31603
Stainless Steel 321 Flanges	SUS 321	–	–	–	X6CrNiTi18-10	1.4541	S32100
Stainless Steel 321H Flanges	SUS 321H	–	–	–	X12CrNiTi18-9	1.4878	S32109
Stainless Steel 347 Flanges	SUS 347	–	08Ch18N12B	–	X6CrNiNb18-10	1.4550	S34700
Stainless Steel 347H Flanges	SUS 347H	–	–	–	X6CrNiNb18-12	1.4961	S34709

ASME B16.5 SS Flange Standard

EN 1092-1
AWWA C207
BS 4504
MSS SP-44
EN 1092-2 PN16

Stainless Steel Flange Types

HS Code For Flange SS

HS Code For SS Pipe Flanges	Des Of Item	Policy
73	Iron And Steel	-
73072100	Other, of ASTM A182/ ASME SA182 Stainless Steel Flanges	Free

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Stainless Steel Blind Flange Dimensions

NPS For (Normal Pipe Size)	Outside Daimeter Of (O.D.) (A)	Wall Thickness Of (B)	Daimeter Of Raised Face (C)	(D) (B.C.D.)	# Flanges Bolts Holes	Daimeter Of Bolt Holes	Approx. Weight In KG (Kilogram)
1/2"	3-1/2	7/16	1-3/8	2-3/8	4	5/8	2
3/4"	3-7/8	1/2	1-11/16	2-3/4	4	5/8	2
1"	4-1/4	9/16	2	3-1/8	4	5/8	2
1-1/4"	4-5/8	5/8	2-1/2	3-1/2	4	5/8	3
1-1/2"	5	11/16	2-7/8	3-7/8	4	5/8	3
2"	6	3/4	3-5/8	4-3/4	4	3/4	4
2-1/2"	7	7/8	4-1/8	5-1/2	4	3/4	7
3"	7-1/2	15/16	5	6	4	3/4	9
3-1/2"	8-1/2	15/16	5-1/2	7	8	3/4	13
4"	9	15/16	6-3/16	7-1/2	8	3/4	17
5"	10	15/16	7-5/16	8-1/2	8	7/8	20
6"	11	1	8-1/2	9-1/2	8	7/8	27
8"	13-1/2	1-1/8	10-5/8	11-3/4	8	7/8	47
10"	16	1-3/16	12-3/4	14-1/4	12	1	67
12"	19	1-1/4	15	17	12	1	123
14"	21	1-3/8	16-1/4	18-3/4	12	1-1/8	139
16"	23-1/2	1-7/16	18-1/2	21-1/4	16	1-1/8	187
18"	25	1-9/16	21	22-3/4	16	1-1/4	217
20"	27-1/2	1-11/16	23	25	20	1-1/4	283
24"	32	1-7/8	27-1/4	29-1/2	20	1-3/8	415

Stainless Steel Slip On Flange Dimensions

Normal Pipe Size For (NPS)	(Inside Diameter) For I.D.	O.D. For (Outside Daimeter)	B.C. For (Circle Bolt)	Raised (R)	RF For (Raised Face)	H For (Hight)	Raised Face Wall Thickness	Thickness1	Flat Face (FF) (Thickness2)	Bolts Holes For (B.C.)	Number Of Bolt Hole (B.H.)
1/2	0.88	3.50	2.38	1.38	.063	1.19	.62	.38	.56	.62	4
3/4	1.09	3.88	2.75	1.69	.063	1.50	.62	.44	.56	.62	4
1	1.36	4.25	3.12	2.00	.063	1.94	.69	.50	.63	.62	4
1-1/4	1.70	4.62	3.50	2.50	.063	2.31	.81	.56	.75	.62	4
1-1/2	1.97	5.00	3.88	2.88	.063	2.56	.88	.62	.82	.62	4
2	2.44	6.00	4.75	3.62	.063	3.06	1.00	.69	.94	.75	4
2-1/2	2.94	7.00	5.50	4.12	.063	3.56	1.12	.82	1.06	.75	4
3	3.57	7.50	6.00	5.00	.063	4.25	1.19	.88	1.13	.75	4
3-1/2	4.07	8.50	7.00	5.50	.063	4.81	1.25	.88	1.19	.75	8
4	4.57	9.00	7.50	6.19	.063	5.31	1.31	.88	1.25	.75	8
5	5.66	10.00	8.50	7.31	.063	6.44	1.44	.88	1.38	.88	8
6	6.72	11.00	9.50	8.50	.063	7.56	1.56	.94	1.50	.88	8
8	8.72	13.50	11.75	10.62	.063	9.69	1.75	1.06	1.69	.88	8
10	10.88	16.00	14.25	12.75	.063	12.00	1.94	1.13	1.88	1.00	12
12	12.88	19.00	17.00	15.00	.063	14.38	2.19	1.19	2.13	1.00	12
14	14.14	21.00	18.75	16.25	.063	15.75	2.25	1.32	2.19	1.12	12
16	16.16	23.50	21.25	18.50	.063	18.00	2.50	1.38	2.44	1.12	16
18	18.18	25.00	22.75	21.00	.063	19.88	2.69	1.50	2.63	1.25	16
20	20.20	27.50	25.00	23.00	.063	22.00	2.88	1.63	2.83	1.25	20
22	22.22	29.50	27.25	25.25	.063	24.25	3.13	1.75	3.07	1.38	20
24	24.25	32.00	29.50	27.25	.063	26.12	3.25	1.82	3.19	1.38	20

Stainless Steel Weld Neck Flange Dimensions

Size (NPS) in Inches	NPS (Normal Pipe Size) Size in Millimeter	Outer Diameter For (O.D.)	Thickness Of Weld Neck Flange	Hub Outer Diameter	Weld Neck Outer Diameter	Length Of ASME B16.5 Welding Neck	Daimeter Of WN Bore	Diameter Of RF (Raised Face)	Raised Face (RF) Height	PCD	Face Of Weld
		A	B	C	D	E	F	G	H	I	J
1/2	15	90	9.6	30	21.3	46	-	34.9	2	60.3	1.6
3/4	20	100	11.2	38	26.7	51		42.9	2	69.9	1.6
1	25	110	12.7	49	33.4	54		50.8	2	79.4	1.6
1 1/4	32	115	14.3	59	42.2	56		63.5	2	88.9	1.6
1 1/2	40	125	15.9	65	48.3	60		73	2	98.4	1.6
2	50	150	17.5	78	60.3	62		92.1	2	120.7	1.6
2 1/2	65	180	20.7	90	73	68		104.8	2	139.7	1.6
3	80	190	22.3	108	88.9	68		127	2	152.4	1.6
3 1/2	90	215	22.3	122	101.6	70		139.7	2	177.8	1.6
4	100	230	22.3	135	114.3	75		157.2	2	190.5	1.6
5	125	255	22.3	164	141.3	87		185.7	2	215.9	1.6
6	150	280	23.9	192	168.3	87		215.9	2	241.3	1.6
8	200	345	27	246	219.1	100		269.9	2	298.5	1.6
10	250	405	28.6	305	273	100		323.8	2	362	1.6
12	300	485	30.2	365	323.8	113		381	2	431.8	1.6
14	350	535	33.4	400	355.6	125		412.8	2	476.3	1.6
16	400	595	35	457	406.4	125		469.9	2	539.8	1.6
18	450	635	38.1	505	457.2	138		533.4	2	577.9	1.6
20	500	700	41.3	559	508	143		584.2	2	635	1.6
24	600	815	46.1	663	610	151		692.2	2	749.3	1.6

Stainless Steel Forged Flanges Face Types

Types of Flanges Faces	DIN And EN 1092-1
Without (RF) Raised Face	Form A
(RF) For Raised Face	Form B1
(RF) For Raised Face	Form B1
(RF) For Raised Fac	Form B2
DIN2512 Tongue Flanges	Form C
DIN 2512 Groove Flanges	Form D
DIN 2513 Male Flanges	Form E
DIN 2513 Female Flanges	Form F

EN 1092-1 Large Diameter Stainless Steel Flanges Bore Dimensions

Lap Joint (Loose) And Slip On (SORF) Flange Bores

Size Chart	Tolerance Of
(NPS) For Normal Pipe Size ≤ 10	+1.0, -0.0 mm (+0.03,-0.0 in.)
(NPS) For Normal Pipe Size ≥ 12	+1.5, -0.0 mm (+0.06,-0.0 in.)

Counter Bores, Threaded (NPT) Flanges

Size Chart	Tolerance Of
(NPS) For Normal Pipe Size ≤ 10	+1.0, -0.0 mm (+0.03,-0.0 in.)
(NPS) For Normal Pipe Size ≥ 12	+1.5, -0.0 mm (+0.06,-0.0 in.)

Counter Bores, Weld Neck (Welding) Flanges

Size Chart	Tolerance
1/2 ≤ Normal Size Of Pipe ≤ 3	±0.25 mm (±0.010 in.)

Marking Of BS 4504 High Pressure Stainless Steel Flanges

ASME B16.5 Stainless Steel Flanges Marking includes ANSI Or ASME/ ASA Code

Name of Manufacturer = (Fastwell Engineering)
NPS = (3 Inch)
Flanges Type = (Slip On)
Schedule = (SCH 80)
Material Designation = (ASTM A182 F304)
Class = (150)
Face Type = (RF)
Country Name = (Made In India)

Marking Of BS 4504 High Pressure Stainless Steel Flanges

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Class 150 Stainless Steel Flange Pressure Rating

Temperature (in F°)	Class 150
< 100	285
200	260
300	230
400	200
500	170
600	140
650	125
700	110
750	95
800	80
850	65
900	50
950	35
1000	20

Class 300 Stainless Steel Flange Pressure Rating

Temperature (in F°)	Class 300
< 100	740
200	680
300	655
400	635
500	605
600	570
650	550
700	530
750	505
800	410
850	320
900	230
950	135
1000	85

3 Inch SS Flange Measurement

O For Outside Diameter of flange
C For Thickness of flange
R For Diameter of raised face
Q For (Minimum) diameter of bolt circle
X For Hub Diameter at base
Y For Length through hub
T For (Minimum) thread length

Advantages Of Stainless Steel Mechanical Joint Flanges

Type Of ASME B16.5 Flange	Check Pressure Class Of Pipe Flange	NPS List	Advantages & Applications
Slip On Flange	Low Pressure	All	Simple Installation/ Low Price/ Easy To Use
Blind Flange	Very High Pressure	All	Pressure Testing/ Connected To Closing Pipe And Valve/ Low Price/ Easy Installation
Socket Weld Flange	High Pressure	Small	SW Flange For ; Smooth Bore And Better Fluid Flow
Threaded Flange	Low Pressure	Small	Threaded Flanges (NPT/ BSP): Bore Which Matches An External Thread On The Pipe
Lap Joint Flange	Low Pressure	All	Lap Joint Flanges Have A Long Neck And Stub End That Is Welded To The Pipe
Weld Neck Flange	High Pressure	All	WN Flange use Conditions Are Critical And Severe.

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