Stainless Steel 304H Flanges

SA182 F304H Blind / Weld Neck and ASTM A182 F304H Slip On Flange Manufacturer In India

What are the different types of Stainless Steel 304H pipe flanges?
Stainless steel 304H pipe flanges are a high carbon version of the 304 grade. These flanges are utilized in connecting a range of pipes, tubes, valves, and other equipment in the system. Some of the more flanges in this range include:

Slip-on flange- The flange is slid onto the piping module and welded in place.
Blind flange- Designed without a head or hub, they are utilized to seal hydraulic ends.
Weld-neck flange- Consists of a long protruding head and is employed in high pressure and temperature systems.
Threaded flange- Has threads, which correspond to the piping module.
Socket weld flange- These components require less space and are fitted in a recessed area wherein they are welded using a fillet weld.
Lap joint flange-Made up of a stub end and a flange. The stub end is welded directly onto the pipe.

What is the purpose of a ASTM A182 F304H blind flange?
ASTM A182 F304H blind flange is a component that is designed without a hub or a boring center. These flanges are utilized to seal ends of hydraulic fluids or gases. They can also be employed to put a stop in the pipeline to carry out repairs or install new components across the piping system. The high-strength flanges can withstand different pressures and temperatures while effectively ensuring that fluids and gases are tightly sealed. These flanges can be either welded or bolted. If they are bolted, they allow for room for maintenance and inspection within the pipeline. They come with either a raised or flat face type setting.

Can you weld a 304H Stainless Steel slip on flange to a 90 degree elbow?
No restrictions are governing whether 304H stainless steel slip on flanges can be welded to a 90 degree elbow. Welding a slip on flange to a 90 degree elbow can be done using basic welding procedures. During this procedure, the slip on flange can be slid on directly on the elbow and welded in place using a single or double fillet weld. This connection though strong is not optimum for high-pressure and temperature systems due to its unique construction as well as the material used to get the final product.

stainless steel 304 flanges manufacturers in india

Stainless Steel 304H Flanges Specification

Specification:	ASTM A182 Stainless Steel 304H Flanges
Pressure Rating ANSI	2500 LBS, Class 150 LBS, 900 LBS, 1500 LBS, 300 LBS, 600 LBS
JIS	5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K
EN	10Bar 16Bar 6Bar 25Bar 40Bar
Coating	Oil Black Paint, Anti-rust Paint, Zinc Plated, Cold and Hot Dip Galvanized, Yellow Transparent,
UNI	6Bar 10Bar 16Bar 25Bar 40Bar
Standards	ASME/ANSI B16.5, API 590, ASME B16.47A/B, ASME B16.36, API7S-15, ISO 70051, EN 1092-1, DIN, B16.48, GOST, API7S-43, API 605, API 6A, BS 10, MSS SP44, BS1560-3.1, BS 4504, BS, EN-1092, EN, DIN, JIS B2220, B16.47 Series A & B, BS 1042
Most common types of Flanges	Forged / Threaded / Screwed / Plate
Test Certificates	EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc
Size Chart	1/2" to 48"
Production technique	Forged, Heat treated and machined
Connect Type/ Flanges Face Type	Flat Face (FF) Flanges, Large Male-Female (LMF) Flanges, Raised Face (RF) Flanges, Large Tongue & Groove, Groove, Lap-Joint Face (LJF) Flanges, Small Male-Female (SMF) Flanges, Small Tongue Flanges, Ring Type Joint (RTJ) Flanges

Types Of ASTM A182 F304H Pipe Flange

3 In, Class 300, SCH 40, Raised Face, SS A182 F304H Orifice Flange

3 Inch, 300 LB, SCH 80, ASTM A182 F304H Orifice Flange

3 Inch, 300 LB, RF, ANSI B16.36, A182 F304H WN Orifice Flange

10 Inch, 900LB, RF, ASTM A182 F304H Orifice Welded Neck Flanges

2 Inch, Class 300, ASTM A182 F304H Spade Ring Blind Flange

2 Inch, Class 300, ASME B16.5, ASTM A182 F304H Blind Spade Flange

2 Inch, Class 300, ASTM A182 F304H Spacer Ring Blind Flange

30 Inch, ANSI B16.48, 300 LB, FF, ASTM A182 F304H Spade Flange

SS F304H Weld Neck Flanges Dimensions Table

Standard Of SS 304H Flanges
CLASS	NPS	ASTM A182 F304H SORF Flanges	ASTM A182 F304H NPT Flanges	ASTM A182 F304H SW Flanges	ASTM A182 F304H Loose Flanges	ASTM A182 F304H BLRF Flanges	ASTM A182 F304H WN Flanges
150#	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
CLASS	NPS	SORF	NPT Flanges	SW	Loose	BLRF	WN
300#	½	2	2	3	2	2	2
	¾	3	3	3	3	3	3
	1	3	3	3	3	4	4
	1¼	4.5	4.5	4	4.5	6	5
	1½	6.5	6.5	6	6.5	7	7
	2	7	7	7	7	8	9
	2½	10	10	10	10	12	12
	3	13	14	13	14.5	16	18
	3½	17	17	17	17	21	20
	4	23.5	24	22	24	28	26.5
	5	29	31	28	28	37	36
	6	39	39	39	39	50	45
	8	58	58	58	58	81	69
	10	81	81	81	91	124	100
	12	115	115	115	140	185	142
	14	165	165	165	190	250	206
	16	210	220	190	234	315	250
	18	253	280	250	305	414	320
	20	315	325	315	375	515	400
	22	370	370	370	435	640	465
	24	490	490	475	550	800	580
CLASS	NPS	SORF	NPT Flanges	SW	Loose	BLRF	WN
400#	½	2	2	2	2	2	3
	¾	3	3	3	3	3	3.5
	1	3.5	3.5	3.5	3.5	4	4
	1¼	4.5	4.5	4.5	4.5	6	4.5
	1½	6.5	6.5	6.5	6.5	8	8
	2	8	8	8	8	10	10
	2½	12	12	12	11	15	14
	3	15	15	15	14	20	18
	3½	21	21	21	20	29	26
	4	26	26	26	25	33	35
	5	31	31	31	29	44	43
	6	44	44	44	42	61	57
	8	67	67	67	64	100	89
	10	91	91	91	110	155	125
	12	130	130	130	152	226	175
	14	191	191	191	210	310	233
	16	253	253	253	280	398	295
	18	310	310	310	345	502	360
	20	378	378	378	420	621	445
	22	405	405	405	455	720	505
	24	539	539	539	615	936	640
CLASS	NPS	SORF	NPT Flanges	SW	Loose	BLRF	WN
600#	½	2	2	2	2	3	3
	¾	3	3	3	3	4	4
	1	4	4	4	4	4	4
	1¼	5	5	5	5	6	6
	1½	7	7	7	7	8	8
	2	9	9	9	9	10	12
	2½	13	13	13	12	15	18
	3	16	16	16	15	20	23
	3½	21	21	21	20	29	26
	4	37	37	37	36	41	42
	5	63	63	63	63	68	68
	6	80	80	80	78	86	81
	8	115	15	15	112	140	120
	10	177	177	177	195	231	190
	12	215	215	215	240	295	226
	14	259	259	259	290	378	347
	16	366	366	366	400	527	481
	18	476	476	476	469	665	555
	20	612	612	612	604	855	690
	22	590	590	590	670	1000	720
	24	876	876	876	866	1250	977
CLASS	NPS	SORF	NPT Flanges	SW	Loose	BLRF	WN
900#	½	6	6	6	6	4	7
	¾	6	6	6	6	6	7
	1	7.5	7.5	7.5	7.5	9	8.5
	1¼	10	10	10	10	10	10
	1½	14	14	14	14	14	14
	2	22	22	22	21	25	24
	2½	31	31	31	25	32	31
	3	36	36	36	29	35	36
	4	53	53	53	51	54	53
	5	83	83	83	81	87	86
	6	110	110	110	105	115	110
	8	172	172	172	190	200	187
	10	245	245	245	277	290	268
	12	326	326	326	371	415	372
	14	400	400	400	415	520	562
	16	459	459	459	488	619	685
	18	647	647	647	670	880	924
	20	792	792	792	868	1107	1164
	24	1480	1480	1480	1659	2099	2107
CLASS	NPS	SORF	NPT Flanges	SW	Loose	BLRF	WN
1500#	½	6	6	6	6	4	7
	¾	6	6	6	6	6	7
	1	8	8	8	8	9	9
	1¼	10	10	10	10	10	10
	1½	14	14	14	14	14	14
	2	25	25	25	25	25	25
	2½	36	36	36	35	35	36
	3	48	48	48	47	48	48
	4	73	73	73	75	73	73
	5	132	132	132	140	140	132
	6	165	165	165	170	160	165
	8	260	260	260	286	302	275
	10	436	436	436	485	510	455
	12	667	667	667	749	775	690
	14	940	940	940	890	975	940
	16	1250	1250	1250	1250	1300	1250
	18	1625	1625	1625	1475	1750	1625
	20	2050	2050	2050	1775	2225	2050
	24	2825	2825	2825	2825	3625	3325
CLASS	NPS	SORF	NPT Flanges	SW	Loose	BLRF	WN
2500#	½	….	7	….	7	7	8
	¾	….	9	….	8	10	9
	1	….	12	….	12	12	13
	1¼	….	18	….	17	18	20
	1½	….	25	….	24	25	28
	2	….	38	….	37	39	42
	2½	….	55	….	53	56	52
	3	….	83	….	80	86	94
	4	….	127	….	122	133	146
	5	….	210	….	204	223	244
	6	….	323	….	314	345	378
	8	….	485	….	471	533	576
	10	….	925	….	897	1025	1068
	12	….	1300	….	1262	1464	1608

UNS S30409 Blind Flanges Weight Chart

Standard	Class	Dia.	Bolt Circle Dia.	Number of Bolts	Bolt Size	Dia. of Bolt Hole
AS4087	PN14	95	67	4	M12	14
AS 2129 Flange	Table C	95	67	4	13	14
	Table D	95	67	4	13	14
	Table E	95	67	4	13	14
	Table F	95	67	4	13	14
	Table H	114	83	4	16	17
	Table J	114	83	4	16	17
ANSI B16.5	ANSI 150	89	60	4	13	16
	ANSI 300	95	67	4	13	16
	ANSI 600	95	67	4	13	16
	ANSI 900	121	83	4	19	22
	ANSI 1500	121	83	4	19	22
ISO 7005 (DIN) Flange	PN6	80	55	4	M10	11
	PN10	95	65	4	M12	14
	PN16	95	65	4	M12	14
	PN20	90	60.5	4	M14	16
	PN25	95	65	4	M12	14
	PN40	95	65	4	M12	14

SA182 F304H Temperature

ANSI/ASME B16.34	ANSI PRESSURE RATING
Temperature °F	150LB	300LB	400LB	600LB	900LB	1500LB	2500LB
-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

A182 F304H Chemical Composition

Grade	C	Mn	Si	P	S	Cr	Mo	Ni	N
Stainless Steel 304H Flanges	0.10 maximum	2 maximum	0.75 maximum	0.045 maximum	0.030 maximum	18 – 20	-	8 – 10.5	-

Check SS F304H Spectacle Blind And UNS S30409 Socket Weld Flange Temperature Rating Formul Or Chemical Composition.

304H Stainless Steel Flanges Equivalent

STANDARD	WERKSTOFF NR.	UNS
Stainless Steel 304H Flanges	1.4301	S30409

Dimensions Of Class 150 304H Stainless Steel Flanges, Weight Chart Of Werkstoff Nr. 1.4301 Reducing Flange.

Werkstoff Nr. 1.4301 SORF Flange Mechanical Chart

Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
8.0 g/cm3	1400 °C (2550 °F)	Psi – 75000 , MPa – 515	Psi – 30000 , MPa – 205	35 %