Stainless Steel 304 Flanges and ASTM A182 F304 Slip On/ Blind Flange

ASTM A182 F304 Slip On Flange and SS 304 Blind Flange manufacturer in India

Table Of Content:

F304 Stainless Steel Flanges Face Types
Difference Between F304 And F304L
304 SS Flange Manufacturing Process
AISI 304 Flange Thickness
304 Flange Sizes
SS 304 Lap Joint Flange Dimensions
SS 304 Plate Flange Dimensions
SS 304 Socket Weld Flange Dimensions
304 Orifice Flange Dimensions
Class 150 Stainless Steel 304 Flange Dimensions
304 Spectacle Blind Flanges Dimensions
Ss 304 Reducing Flange Dimensions
Werkstoff No 1.4301 Flanges Bolt Torque
European Standards Of AISI 304 Stainless Steel Flanges
A182 Grade F304 Socket Weld Flanges Bolts Chart
SA 182 Gr F304 Flanges Heat Treatment

Vishal Steel Casting & Forging Factory

SS 304 Flanges Specification

Specification	Stainless Steel 304 Flanges
UNS Number	S30400
Werkstoff No.	1.4301
Supporting Material	Gasket/ Ring Joint/ Flange Bolts
Test Certificates	EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc
Production Technique	Forged/ Heat treated and machined
Manufacturer of	Forged/ Threaded/ Screwed / Plate
Face Type	RTJ/ FF/ RF/ lap joint/ Male & Female / Tongue & Groove.
Forging Methods	Casting/ Forging/ Rolling/ Cutting
Schedule	SCH 5S, SCH 10, SCH 40, SCH 80, SCH 120, SCH 160, SCH 180 To XXS
Dimensions And Standard	EN 1092-1/ EN 1092-2/ API/ ISO/ JIS/ GOST/ PN
Manufacturer Length	NPS 1⁄₂" To NPS 48”
Other Standard	B16.47 Series A & B/ B16.48, BS4504/ GOST
UNI Standard	6 Bar/ 10 Bar/ 16 Bar/ 25 Bar/ 40 Bar
Most common types	SS 304 Blind Flanges SS 304 Weld Neck Flanges SS 304 Slip On Flanges SS 304 Forged Flanges SS 304 Threaded Flanges SS 304 Plate Flanges 304 Orifice Flanges 304 Spectacle Blind Flanges SS 304 Lap Joint Flanges SS 304 Reducing Flanges 304 Welding Neck Flange 304 Flange Asme B16.5 SS 304 Socket Weld Flanges
Manufacturer Pressure Class	Class 150 (lb) up to 24" Class 300 (lb) up to 20" Class 600 (lb) up to 20" Class 900 (lb) up to 16" Class 1500 (lb) up to 10" Class 2500 (lb) up to 8"
Flanges Test	Hydrostatic testing machine/ UI trasonic flaw detector/ X-ray detector/ Direct-reading Spectrograph/ Magnetic particle detector
Flanges Equipment	Pushing Machine/ electric bevelling machine/ Press machine/ Bending machine/ Sand-blasting machine etc
Coating	Anti-rust Paint/ Zinc Plated/ Oil Black Paint/ Yellow Transparent/ Cold and Hot Dip Galvanized
EN Standard	6Bar/ 10Bar/ 16Bar/ 25Bar/ 40Bar
DIN Standard	PN6/ PN10/ PN16/ PN25/ PN40/ PN64
JIS Standard	5K/ 10K/ 16K 20K/ 30K/ 40K/ 63K
Application	Bitumen upgraders Heavy oil refineries. Nuclear power (mostly seamless). Petrochemicals and acids.

Price stability can be seen in Stainless Steel 304 Flanges Manufacturer In India
ASTM A182 F304 Flanges Material have high corrosion resistance, particularly to stress corrosion cracking
Very little or no maintenance material
304 Stainless Steel Flanges are suitable for harsh conditions.
Buy from SS 304 Flange manufacturers in India for factory price
A largest Manufacturer, Wholesaler, Distributor, Suppliers, Dealer, Distributor, Importer, Exporter, Source, Stock, Stockholder, Traders, Fabricator & Stockist in Asia & Middle East.

Available Stainless Steel 304 Flanges Machineries In House

Welding Machine

Overlay/cladding Machines

Facing Machines

Bevelling Machines

CNC Lath
Oil Fired Heat Treatment Furnace
Hydraulic Press 300 Tons Capacity
Radial Driling Machine

Conventional Machine
Heat Treatment For Forged Fittings
Hydraulic Press 150 Tons Capacity
Portable Temperature Indicator

Packaging Of SS 304 Flanges

SS 304 Flange Price List India

Type Of Flange	Size In Inch	SCH	Class	Grade	Price In INR (India) Per Piece
Stainless Steel Blind Flange	3/4	40	150	ASTM A182 F304 Flange	120.00
	1	40	150	-	143.00
-	1-1/2	40	150	-	234.00
-	2	40	150	-	379.00
-	3	40	150	-	535.00
Blind	4	40	150	-	852.00
Stainless Steel Weld Neck Flange	2	STD	150	ASTM A182 F304 Flange	310.00
-	4	STD	300	-	650.00
-	6	80	300	-	987.00
Weld Neck	8	80	300	-	1462.00
Stainless Steel Slip On Flange	2	40	150	-	187.00
-	3	40	150	-	347.00
-	8	80	300	-	1200.00
Slip On	10	80	300	ASTM A182 F304	1673.00

Types Of Stainless Steel 304 Flanges

SS 304 Blind Flanges

SS 304 Slip On Flanges

SS 304 Weld Neck Flanges

SS 304 Socket Weld Flanges

SS 304 Plate Flanges

SS 304 Lap Joint Flanges

SS 304 Threaded Flanges

304 Orifice Flanges

304 Spectacle Blind Flanges

SA 182 Gr F304 RTJ Flanges

SUS 304 Raised Face Flanges

SS 304 Reducing Flanges

304 Welding Neck Flanges

304 Stainless Steel Square Flanges

DIN 1.4301 Flat Flanges

UNS S30400 Anchor Flanges

AISI 304 Large Diameter Flanges

WNR 1.4301 High Hub Blind Flanges

Class 150 Stainless Steel 304 Flanges

304 Flange Asme B16.5

ASTM A182 F304 Flanges

304 Stainless Steel Flanges

SS 304 Flanges

SS 304 Pipe Flanges

Stainless 304 Flanges

304 SS Flanges

SS 304 Pipe Flanges

Grade 304 Flanges Natural Gas Pipeline Projects

A182 F304 Flanges

Trans-Saharan gas pipeline (Nigeria)

Stainless Steel 304 Flanges

West African Gas Pipeline ( Ghana)

ASTM A182 F304 Flanges

Escravos–Lagos Pipeline System (Africa)

SS 304 Flanges

Greenstream pipeline (Italy)

SS 304 Weld Neck Flanges

Maghreb-Europe Gas Pipeline (Spain)

SS 304 Slip On Flange

Trans-Mediterranean Pipeline ( Algeria)

SS 304 Forged Flange

Greece-Italy pipeline (Greece–Italy)

SS 304 Threaded Flange

CATS pipeline (England)

SS 304 Plate Flange

Fulmar Gas Pipeline (Scotland)

SS 304 Socket Weld Flange

NOGAT Pipeline System (Netherlands)

Class 150 Stainless Steel 304 Flange

Gazela Pipeline (Germany)

304 Orifice Flange

Yamal-Europe pipeline (Russia to Germany)

SS 304 Forged Flange Dimensions

Normal Pipe Size		Flanges Diameter ('O')	Diameter of (B.C.) 'A'	Diameter of (B.H.) 'D'	Holes Number	Flanges Wall Thickness 'C'	Diameter (Flanges) at Weld Bevel	(Flanges) Diameter of Hub 'E'	Length Of Through Hub			Bore ('B')		Diameter of (RF) R	Depth of Socket Weld F	Threading Length
Normal Pipe Size		Flanges Diameter ('O')	Diameter of (B.C.) 'A'	Diameter of (B.H.) 'D'	Holes Number	Flanges Wall Thickness 'C'	Diameter (Flanges) at Weld Bevel	(Flanges) Diameter of Hub 'E'	SORF/ SWRF (Y)	WNRF (Y)	Lap Joit (Y)	SORF/ SWRF (B)	Lap Joit (B)	Diameter of (RF) R	Depth of Socket Weld F	Threading Length
1/2''	15	95.2	66.7	15.9	4	14.3	21.3	38.1	22.2	52.4	22.2	22.3	22.9	34.9	9.5	15.9
3/4''	20	117.5	82.5	19.0	4	15.9	26.7	47.6	25.4	57.1	25.4	27.7	28.2	42.9	11.1	15.9
1''	25	123.8	88.9	19.0	4	17.5	33.5	54.0	27.0	61.9	27.0	34.5	35.0	50.8	12.7	17.5
1	32	133.3	98.4	19.0	4	20.6	42.2	63.5	28.6	66.7	28.6	43.2	43.7	63.5	14.3	20.6
1	40	155.6	114.3	22.2	4	22.2	48.3	69.8	31.7	69.8	31.7	49.5	50.0	73.0	15.9	22.2
2''	50	165.1	127.0	19.0	8	25.4	60.4	84.1	36.5	73.0	36.5	62.0	62.5	92.1	17.5	25.4
2	65	190.5	149.2	22.2	8	28.6	73.1	100.0	41.3	79.4	41.3	74.7	75.4	104.8	19.0	28.6
3''	80	209.5	168.3	22.2	8	31.8	88.9	117.5	46.0	82.5	46.0	90.7	91.4	127.0	-	30.2
3	90	228.5	184.2	22.2	8	34.9	101.6	133.4	49.3	85.7	49.3	103.4	104.1	140.0	-	31.7
4''	100	273.0	215.9	25.4	8	38.1	114.3	152.4	54.0	101.6	54.0	116.1	116.8	157.2	-	33.3
5''	125	330.2	266.7	28.6	8	44.4	141.2	188.9	60.3	114.3	60.3	143.8	144.5	185.7	-	36.5
6''	150	355.6	292.1	28.6	12	47.6	168.4	222.2	66.7	117.5	66.7	170.7	171.4	215.9	-	39.7
8''	200	419.1	349.2	31.7	12	55.6	219.2	273.0	76.2	133.3	76.2	221.5	222.2	269.9	-	44.4
10''	250	508.0	431.8	34.9	16	63.5	273.0	342.9	85.7	152.4	111.2	276.3	277.4	323.8	-	49.2
12''	300	558.8	488.9	34.9	20	66.7	323.8	400.0	92.1	155.6	117.3	327.1	328.2	381.0	-	55.6
14''	350	603.2	527.0	38.1	20	69.9	355.6	431.8	93.7	165.1	127.0	359.1	360.2	412.7	-	57.1
16''	400	685.8	603.2	41.3	20	76.2	406.4	495.3	106.4	177.8	139.7	410.5	411.2	469.9	-	63.5
18''	450	742.9	654.0	44.4	24	82.6	457.2	546.1	117.5	184.1	152.4	461.8	462.3	533.4	-	68.3
20''	500	812.8	723.9	44.4	24	88.9	508.0	609.6	127.0	190.5	165.1	513.1	514.3	584.2	-	73.0
24''	600	939.8	838.2	50.8	24	101.6	609.6	717.5	139.7	203.2	184.1	615.9	615.9	692.1	-	82.5

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SS 304 Flange Weight Chart

Pressure Class	Nominal Size Of Pipe (NPS) In Inch	Slip On (SORF) In Inch	Threaded (NPT) In Inch	Socket Weld (SWRF) In Inch	Lap Joint (LOOSE) In Inch	Blind (BLRF) In Inch	Weld Neck (WNRF) In Inch
Class 150 Flanges	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

304 Welding Neck Flange Manufacturing Process

Raw Material

Raw Materia
Materia Dimension And Visual
Materia Quantity

Inspection

Chemical And Mechanical Analysis
Analysis Of Preservation Certificate

Cutting

Cut Surface
Marking
Weight Measuring

Forging Flange

Grade Of Material
Control Flange Temperature

Heat Treatment

Flange Solution Treatment
Flanges Mechanical Test
Normalizing

Forging Rolling Of Flange

Check Dimension
Check Marking
Check Weight

Final Inspection Of Pipe Flange

Test Of Visual
Test Of Nondestructive

Rust Prevention

View Preserve
Marking
Heat Number

Packaging

Specification Of Packing
Inspection Of Packing
Delivery Time And Day

SS 304 Flange Hsn Code

Description	Hs Code	Number of Shipments
Stainless Steel 304 Flanges	73072100	17

SS 304 Flange Standard

BS 4504
ASME B16.5
ANSI B16.5
MSS SP-44
EN 1092-2 PN16
DIN
EN 1092-1
AWWA C207
JIS
ISO

304 SS Flange Pressure Rating

ASME/ ANSI B16.5	Pressure Rating
Temperature °F	Class 150	Class 300	Class 400	Class 600	Class 900	Class 1500	Class 2500
-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

SS 304 Slip On Flange Dimensions

Dimensions of Class 150, 300, 600, 900, 1500, 2500

CLass	150	300	600	900	1500	2500
Diameter A	30	38	38	38	38	...
Diameter D	90	95	95	120	120	...
THK B	9.6	12.7	14.3	22.3	22.3	...
THK B	11.2	14.3	20.7	28.7	28.7	...
Diameter G	35.1	35.1	35.1	35.1	35.1	...
Diameter K	60.3	66.7	66.7	82.6	82.6	...
Height	14	21	22	32	32	...
Height	15.6	22.6	28.4	38.4	38.4	...
Number L	4	4	4	4	4	...
Diameter L	15.9	15.9	15.9	22.2	22.2	...
Stud Bolts Diameter x Length
Diameter (in)	1/2	1/2	1/2	3/4	3/4	...
Length mm	55	65	75	110	110	...

SS 304 Blind Flange Dimensions

Dimensions of Class 150, 300, 600, 900, 1500, 2500

CLass	CLass 150	CLass 300	CLass 600	CLass 900	CLass 1500	CLass 2500
Diameter (D)	90	95	95	120	120	135
(B)	9.6	12.7	14.3	22.3	22.3	30.2
(B)	11.2	14.3	20.7	28.7	28.7	36.6
Diameter (G)	35.1	35.1	35.1	35.1	35.1	35.1
Diameter (K)	60.3	66.7	66.7	82.6	82.6	88.9
Number (L)	4	4	4	4	4	4
Diameter (L)	15.9	15.9	15.9	22.2	22.2	22.2
Stud Bolts Diameter x Length
Diameter (inch)	1/2	1/2	1/2	3/4	3/4	3/4
Length in millimeter	55	65	75	110	110	120

ADNOC approved manufacturer of 304 Stainless Steel Flanges in Raised/ Flat/ RTJ Face, check SA 182 Gr F304 Weld Neck Flange material dimensions and pressure class

SS 304 Weld Neck Flange Dimensions

Dimensions of Class 150, 300, 600, 900, 1500, 2500

CLass	CLass 150	CLass 300	CLass 600	CLass 900	CLass 1500	CLass 2500
Diameter A	30	38	38	38	38	43
Diameter D	90	95	95	120	120	135
Thickness B	9.6	12.7	14.3	22.3	22.3	30.2
Thickness B	11.2	14.3	20.7	28.7	28.7	36.6
Diameter G	35.1	35.1	35.1	35.1	35.1	35.1
Diameter K	60.3	66.7	66.7	82.6	82.6	88.9
Hight	46	51	52	60	60	73
Hight	47.6	52.6	58.4	66.4	66.4	79.4
Number L	4	4	4	4	4	4
Diameter L	15.9	15.9	15.9	22.2	22.2	22.2
Stud Bolts Diameter x Length
Diameter (in)	1/2	1/2	1/2	3/4	3/4	3/4
Length mm	55	65	75	110	110	120

SS 304 Threaded Flange Dimensions

Dimensions of Class 150, 300, 600, 900, 1500, 2500

NPS 1/2

CLass	Class 150	Class 300	Class 600	Class 900	Class 1500	Class 2500
Diameter A	30	38	38	38	38	43
Diameter D	90	95	95	120	120	135
Thickness B	9.6	12.7	14.3	22.3	22.3	30.2
Thickness B	11.2	14.3	20.7	28.7	28.7	36.6
Diameter G	35.1	35.1	35.1	35.1	35.1	35.1
Diameter K	60.3	66.7	66.7	82.6	82.6	88.9
Height	14	21	22	32	32	40
Height	15.6	22.6	28.4	38.4	38.4	46.4
Number L	4	4	4	4	4	4
Diameter L	15.9	15.9	15.9	22.2	22.2	22.2
Stud Bolts Diameter x Length
Diameter (in)	1/2	1/2	1/2	3/4	3/4	3/4
Length In mm	55	65	75	110	110	120

Class 150 to 2500 Stainless Steel 304 Socket Weld Flange and ASTM A182 Gr F304 Reducing Flanges manufacturer in Mumbai

304 Flange ASME B16.5 Equivalent

Grade Name	Stainless Steel 304 Flanges
WERKSTOFF No.	1.4301
JIS	SUS 304
AFNOR	Z7CN18‐09
BS	304S31
GOST	08Х18Н10
UNS	S30400
EN	SUS 304
DIN	1.4301

UNS S30400 Chemical Composition

Chemical Element	Stainless Steel 304 Flanges
Chromium	18.00-20.00
Manganese	≤2.00
Phosphorus	≤0.045
Carbon	≤0.08
Sulfur	≤0.030
Silicon	≤0.75
Iron	Balance
Nickel	8.00-12.00
Nitrogen	≤0.10

ASTM A182 F304 Mechanical Properties

Name Of Grade	Hardness, Rockwell	Elongation, %	Yield Properties, ksi(Mpa)	Tensile Properties ksi(Mpa), (minimum)
Stainless Steel 304 Flanges	B80	55	35(241)	85(586)

Manufacturer of UNS S30400 Stainless Steel Pipe Flanges in various types such as Orifice Flange, Plate and SS 304 Forged flanges in accordance with JIS, EN, DIN, GOST, AWWA, and API specification

UNS S30400 Vs S30403

Stainless Steel 304 Flanges Bore Diameter

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

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

Counter Bores, NPT (Threaded) Flanges

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

Counter Bores, Welding (Weld Neck) Flanges

ANSI B16.5 Size	ASME B16.5 Tolerance
1/2 ≤ Normal Size Of Pipe ≤ 3	±0.25 mm (±0.010 in.)

SS 304 Flanges Production Process

Gasket For ASTM A182 F304 Flanges

(Normal Size Of Pipes) In Inch	(I.D.) Inner Daimeter Gasket	(O.D.) Outer Daimeter Gasket
(Normal Size Of Pipes) In Inch	(I.D.) Inner Daimeter Gasket	Class 150#/ LB	Class 300#/ LB	Class 400#/ LB	Class 600#/ LB	Class 900#/ LB
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

DIN Standards Of 304 Stainless Steel Flanges

UNS S30400 Stainless Steel Flanges Marking

size
item
specification and number
pressure rating, with unit
OD
WT, with unit
bore when applicable
std schedule when applicable,
material specification

3"
FLANGE
SORF
ASME B16.5 150#
6" OD x 0.250"
152.4 Unit
Bore 15.500"
SCH 40S
ASTM A182 F304

Supplier of Stainless Steel DIN 1.4301 Spectacle Blind Flange, Ring Spacers, Spades and Stainless Steel 304 Threaded Flanges in PN6, PN10, PN40 pressure rating, call now for a free sample!

F304 Stainless Steel Flanges Face Types

Difference Between F304 And F304L

304 SS Flange Manufacturing Process

AISI 304 Flange Thickness

Normal Size Of Pipe	Outer Diameter (O.D.)	10 Schedule	20 Schedule	30 Schedule	STD Wall	40 Schedule	60 Schedule	EXT Hvy	80 Schedule	100 Schedule	120 Schedule	140 Schedule	160 Schedule	XX Hvy
½	0.84	0.083	...	...	0.109	0.109	...	0.147	0.147	...	...	...	0.188	0.294
¾	1.05	0.083	...	...	0.113	0.113	...	0.154	0.154	...	...	...	0.219	0.308
1	1.315	0.109	...	...	0.133	0.133	...	0.179	0.179	...	...	...	0.25	0.358
1 ¼	1.66	0.109	...	...	0.14	0.14	...	0.191	0.191	...	...	...	0.25	0.382
1 ½	1.9	0.109	...	...	0.145	0.145	...	0.2	0.2	...	...	...	0.281	0.4
2	2.375	0.109	...	...	0.154	0.154	...	0.218	0.218	...	...	...	0.344	0.436
2 ½	2.875	0.12	...	...	0.203	0.203	...	0.276	0.276	...	...	...	0.375	0.552
3	3.5	0.12	-	-	0.216	0.216	-	0.3	0.3	-	-	-	0.438	0.6
3 ½	4	0.12	-	-	0.226	0.226	-	0.318	0.318	-	-	-	-	0.636
4	4.5	0.12	-	-	0.237	0.237	-	0.337	0.337	-	0.438	-	0.531	0.674
5	5.563	0.134	-	-	0.258	0.258	-	0.375	0.375	-	0.5	-	0.625	0.75
6	6.625	0.134	-	-	0.28	0.28	-	0.432	0.432	-	0.562	-	0.719	0.864

304 Flange Sizes

Normal Pipe Size	DN
1/2	15
3/4	20
1	25
1 1/4	32
1 1/2	40
2	50
2 1/2	65
3	80
4	100

SS 304 Lap Joint Flange Dimensions

Normal Size Of Steel Pipe In Inch	Normal Size Of Steel Pipe in MM	O.D.	(WT)	Lapped Thickness	Inner Daimeter	PCD	Lapped Thickness	Lap Joint Radius	LJ Bolts Number	Bolts Size In UNC	Length Of Machine Bolt	Length Of (RF) Stud	Lap Joint Flange Bolts Hole Size	ISO Stud Size	Weight In Kilogram (KG)
		A	B	C	D	E	G
1/2	15	90	30	16	22.9	60.3	11.2	3	4	1/2	50	55	5/8	M14	0.8
3/4	20	100	38	16	28.2	69.9	12.7	3	4	1/2	50	65	5/8	M14	0.9
1	25	110	49	17	34.9	79.4	14.3	3	4	1/2	55	65	5/8	M14	0.9
1 1/4	32	115	59	21	43.7	88.9	15.9	5	4	1/2	55	70	5/8	M14	1.4
1 1/2	40	125	65	22	50	98.4	17.5	6	4	1/2	65	70	5/8	M14	1.4
2	50	150	78	25	62.5	120.7	19.1	8	4	5/8	70	85	3/4	M16	2.3
2 1/2	65	180	90	29	75.4	139.7	22.3	8	4	5/8	75	90	3/4	M16	3.2
3	80	190	108	30	91.4	152.4	23.9	10	4	5/8	75	90	3/4	M16	3.7
3 1/2	90	215	122	32	104.1	177.8	23.9	11	8	5/8	75	90	3/4	M16	5
4	100	230	135	33	116.8	190.5	23.9	11	8	5/8	75	90	3/4	M16	5.9
5	125	255	164	36	144.4	215.9	23.9	11	8	3/4	85	95	7/8	M20	6.8
6	150	280	192	40	171.4	241.3	25.4	13	8	3/4	85	100	7/8	M20	8.6
8	200	345	246	44	222.2	298.5	28.6	13	8	3/4	90	110	7/8	M20	13.7
10	250	405	305	49	277.4	362	30.2	13	12	7/8	100	115	1	M24	19.5
12	300	485	365	56	328.2	431.8	31.8	13	12	7/8	100	120	1	M24	29
14	350	535	400	79	360.2	476.3	35	13	12	1	115	135	1 1/8	M27	41
16	400	595	457	87	411.2	539.8	36.6	13	16	1	115	135	1 1/8	M27	54
18	450	635	505	97	462.3	577.9	39.7	13	16	1 1/8	125	145	1 1/4	M30	59
20	500	700	559	103	514.4	635	42.9	13	20	1 1/8	140	160	1 1/4	M30	75
24	600	815	663	111	616	749.3	47.9	13	20	1 1/4	150	170	1 3/8	M33	100

SS 304 Plate Flange Dimensions

Size In Inch	Wall Thickness	I.D.	O.D.	Bolt Circle	Bolt Holes		Weight In LBS
Size In Inch	Wall Thickness	I.D.	O.D.	Bolt Circle	Number	Diameter	Weight In LBS
1	5/8	1.36	4 1/4	3 1/8	4	5/8	2.1
1 1/4	5/8	1.70	4 5/8	3 1/2	4	5/8	2.4
1 1/2	5/8	1.95	5	3 7/8	4	5/8	2.8
2	5/8	2.44	6	4 3/4	4	3/4	4.0
2 1/2	5/8	2.94	7	5 1/2	4	3/4	5.3
3	5/8	3.57	7 1/2	6	4	3/4	6.1
4	5/8	4.57	9	7 1/2	8	3/4	8.0
5	5/8	5.66	10	8 1/2	8	7/8	10.5
6	5/8	6.72	11	9 1/2	8	7/8	11.5
8	1	8.72	13 1/2	11 3/4	8	7/8	22.4
10	1	10.88	16	14 1/4	12	1	26.6
12	1	12.88	19	17	12	1	41.0
14	1	14.14	21	18 3/4	12	1 1/8	48.0
16	1	16.16	23 1/2	21 1/4	16	1 1/8	61.3
18	1 1/16	18.18	22 3/4	22 3/4	16	1 1/4	63.3

SS 304 Socket Weld Flange Dimensions

NPS Of SWRF	Outer Diameter	Diameter of RF	Minimum Thickness	Hub Diameter	Through Hub Length	Bore Diameter	Socket Depth	Bolt Circle Diameter	Bolt Holes Diameter	Flanges Bolt Number	Weight In Kilogram	-
(NPS)	(O)	(R)	(tf)	(X)	(Y)	(B1)	(B2)	(D)	(W)	(I)	(n)	(-)
1/2	90	34.9	9.6	30	14	22.2	15.8	10	60.3	15.9	4	0.42
3/4	100	42.9	11.2	38	14	27.7	20.9	11	69.9	15.9	4	0.60
1	110	50.8	12.7	49	16	34.5	26.6	13	79.4	15.9	4	0.83
1 1/4	115	63.5	14.3	59	19	43.2	35.1	14	88.9	15.9	4	1.01
1 1/2	125	73.0	15.9	65	21	49.5	40.9	16	98.4	15.9	4	1.32
2	150	92.1	17.5	78	24	61.9	52.5	17	120.7	19.1	4	2.07
2 1/2	180	104.8	20.7	90	27	74.6	62.7	19	139.7	19.1	4	3.51
3	190	127.0	22.3	108	29	90.7	77.9	21	152.4	19.1	4	4.01

304 Orifice Flange Dimensions

Orifice Size in Inchch	Orifice Size in mm	Outer Diameter (O.D.)	Orifice Flange Thickness	Hub Outer Diameter	Weld Neck Outer Diameter	Length Of Welding Neck	RF Diameter	Height Of RF	PCD	Orifice Hole diameter	Number of Bolts	Bolt Size In UNC	Stud Length Of RF	Size Of Hole	Stud Size In ISO	Weight in Kilogram
A	B	C	D	E	F	G	H	I	-	-	-	-	-	-	-	-
1	25	125	36.6	54	33.4	81	50.8	2	88.9	6.4	4	5/8	125	3/4	M16	4.5
1 1/2	40	155	36.6	70	48.3	84	73	2	114.3	6.4	4	3/4	135	7/8	M20	6.5
2	50	165	36.6	84	60.3	84	92.1	2	127	6.4	8	5/8	125	3/4	M16	7
2 1/2	65	190	36.6	100	73	87	104.8	2	149.2	6.4	8	3/4	135	7/8	M20	7.5
3	80	210	36.6	117	88.9	87	127	2	168.3	9.5	8	3/4	135	7/8	M20	9.4
4	100	255	36.6	146	114.3	90	157.2	2	200	12.7	8	3/4	135	7/8	M20	13.2
6	150	320	36.6	206	168.3	98	215.9	2	269.9	12.7	12	3/4	135	7/8	M20	14.6
8	200	380	39.7	260	219.1	110	269.9	2	330.2	12.7	12	7/8	145	1	M24	30
10	250	445	46.1	321	273	116	323.8	2	387.3	12.7	16	1	165	1 1/8	M27	41
12	300	520	49.3	375	323.8	129	381	2	450.8	12.7	16	1 1/8	180	1 1/4	M30	62
14	350	585	52.4	425	355.6	141	412.8	2	514.4	12.7	20	1 1/8	185	1 1/4	M30	84
16	400	650	55.6	483	406.4	144	469.9	2	571.5	12.7	20	1 1/4	195	1 3/8	M33	111
18	450	710	58.8	533	457	157	533.4	2	628.6	12.7	24	1 1/4	205	1 3/8	M33	138
20	500	775	62	587	508	160	584.2	2	685.8	12.7	24	1 1/4	215	1 3/8	M33	171
24	600	915	68.3	702	610	167	692.2	2	812.8	12.7	24	1 1/2	240	1 5/8	M39	247

Class 150 Stainless Steel 304 Flange Dimensions

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

304 Spectacle Blind Flanges Dimensions

Size in Inch	Size in MM	Inner Diameter	Outer Diameter	Center to Center	Wall Thickness	Width Of Web	Thickness Of Web	Hole Diameter	Weight in KG	Paddle Blank Weight in Kilogram	Paddle Spacer Blank Weight in Kilogram
1/2	15	16	45	60	3	38	2	15.875	0.07	0.03	0.03
3/4	20	21	54	70	3	38	2	15.875	0.1	0.05	0.04
1	25	27	64	80	3	38	2	15.875	0.14	0.07	0.06
1 1/4	32	42	73	90	6.4	38	4	15.875	0.35	0.21	0.14
1 1/2	40	48	83	100	6.4	38	4	15.875	0.46	0.27	0.18
2	50	61	102	120	6.4	51	4	19.05	0.68	0.41	0.26
2 1/2	65	73	107	140	6.4	51	4	19.05	0.7	0.46	0.24
3	80	89	133	150	6.4	64	4	19.05	1.1	0.71	0.39
3 1/2	90	102	159	175	9.7	64	5	19.05	2.44	1.54	0.9
4	100	114	172	190	9.7	64	5	19.05	2.81	1.8	1.01
5	130	141	194	215	9.7	76	5	22.225	3.37	2.29	1.08
6	150	168	219	240	12.7	76	7	22.225	5.39	3.82	1.57
8	200	219	276	300	12.7	76	10	22.225	8.32	6.07	2.25
10	250	273	337	360	15.7	102	12	25.4	15.04	11.19	3.84
12	300	324	406	430	19.1	102	15	25.4	26.95	19.77	7.18
14	350	356	448	475	19.1	108	15	28.575	32.94	24.07	8.87
16	400	406	511	540	22.4	108	17	28.575	50.27	36.73	13.54
18	450	457	546	580	25.4	114	20	31.75	61.79	47.55	14.23
20	500	508	603	635	28.4	121	22	31.75	83.67	64.85	18.82
24	600	610	714	750	31.8	140	24	34.925	129.3	101.8	27.49

SS 304 Reducing Flange Dimensions

NPS		Reducing Types	Ø (A)	(D)	Liner Wall Thickness
(DN 1)	(DN 2)	Reducing Types	Ø (A)	(D)	Liner Wall Thickness
Inch	Inch		millimeter	millimeter	millimeter
3/4	1/2	1	98.5	30	5.0
1	1/2	1	108	30	5.0
1	3/4	1	108	30	5.0
1.1/2	1/2	1	127	30	5.0
1.1/2	3/4	1	127	30	5.0
1.1/2	1	1	127	30	5.0
2	1/2	3	152	30	5.0
2	3/4	2	152	30	5.0
2	1	2	152	30	5.0
2	1.1/2	1	152	30	5.0
3	3/4	3	190.5	35	5.0
3	1	3	190.5	35	5.0
3	1.1/2	2	190.5	35	5.0
3	2	1	190.5	35	5.0
4	3/4	3	228.6	35	5.0
4	1	3	228.6	35	5.0
4	1.1/2	3	228.6	35	5.0
4	2	3	228.6	35	5.0
4	3	2	228.6	35	5.0
6	3/4	3	280	40	5.0
6	1	3	280	40	5.0
6	1.1/2	3	280	40	5.0
6	2	3	280	40	5.0
6	3	3	280	40	5.0
6	4	2	280	40	5.0
8	1	3	343	35	5.0
8	1.1/2	3	343	35	5.0
8	2	3	343	40	5.0
8	3	3	343	40	5.0
8	4	3	343	40	5.0
8	6	2	343	40	5.0
10	1	3	406	35	2.5
10	1.1/2	3	406	35	2.5
10	2	3	406	35	2.5
10	3	3	406	35	2.5
10	4	3	406	35	2.5
10	6	3	406	35	2.5
10	8	2	406	35	3.5
12	1	3	483	35	3.5
12	1.1/2	3	483	35	3.5
12	2	3	483	35	3.5
12	3	3	483	35	3.5
12	4	3	483	35	3.5
12	6	3	483	35	3.5
12	8	3	483	35	3.5
12	10	2	483	35	3.5
14	12	1	533	40	3.5
16	12	3	597	40	3.5
16	14	2	597	35	3.5

Werkstoff No 1.4301 Flanges Bolt Torque

SS Pipe Flanges Size Inch	SS Pipe Flanges Size MM	(Maximum) Radial Projection
SS Pipe Flanges Size Inch	SS Pipe Flanges Size MM	No Deeper Than the Bottom In Millimeter	Deeper Than the Bottom In Millimeter
1/2	15	3.0	1.5
3/4	20	3.0	1.5
1	25	3.0	1.5
1 1/4	32	3.0	1.5
1 1/2	40	3.0	1.5
2	50	3.0	1.5
2 1/2	65	3.0	1.5
3	80	4.5	1.5
3 1/2	90	6.0	3.0
4	100	6.0	3.0
5	125	6.0	3.0
6	150	6.0	3.0
8	200	8.0	4.5
10	250	8.0	4.5
12	300	8.0	4.5
14	350	8.0	4.5
16	400	10.0	4.5
18	450	12.0	6.0

European Standards Of AISI 304 Stainless Steel Flanges

European standard EN 1092: Stainless Steel 304 Flanges and Their Joints (Circular Flanges for Pipes/ Valves/ Fittings and Accessories/ PN designated)

Steel flanges, PN 2.5 to PN 400

European Standards Of AISI 304 Stainless Steel Flanges

A182 Grade F304 Socket Weld Flanges Bolts Chart

SA 182 Gr F304 Flanges Heat Treatment

Name Of Grade	Types Of Heat Treatment	Austenitizing & Solutioning	Cooling	Quenching	Tempering
	Types Of Treat	temperature (Temp.), minimum. (°F)	Media	Cool	Temp.
Stainless Steel 304 Flanges	Solution	1900 [1040]		Liquid		500 [260]	B
	treat and
	quench