Stainless Steel 321 Flanges

Refer ASTM A182 F321 Blind / Socket Weld / Weld Neck / UNS S32100 Slip On Flange Equivalent Table And Chemical Composition

What is Stainless Steel 321 reducing flange?
Stainless steel 321 flanges are austenitic components designed with an 18/8 chemical composition having additions of niobium or titanium to stabilize them. A reducing flange in the 321 grade is employed in connecting a range of piping materials of dissimilar sizes. These flanges have boring holes of different diameters allowing them to fit pipes of different models. Reducing flanges in this range come in the form of blind, weld neck, threaded and slip-on flanges. The flanges are available in different pressure sizes and are frequently utilized in fittings where there is limited space. The short-length flange shouldn’t be used in sudden transitions between lines where there are chances of turbulence.

What is AISI 321 Table E flange?
Flanges are piping components that are utilized in joining different piping components across the system. AISI 321 Table E flange is a versatile module having specifications where different diameters like holes, module, number of bolts, sizes of these bolts are precisely designed. The AISI 321 Table E flange is a chromium-nickel grade combined with niobium and titanium to stabilize them. The Table E flanges in this range have a diameter of 95mm with a bolt circle diameter of 67mm. The module can fit 4 bolts each, having a size of 13mm with a diameter of 14mm. The modules are highly resistant to carbide precipitation and can withstand in temperatures up to 900 degrees C.

ASTM A182 F321 Plate vs Forged flange
Plate and forged flanges are unique components of flanges that can be distinguished based on certain features.

ASTM A182 F321 plate is generally placed in casts and later machined to get it in precise shapes. Forged flanges are manufactured by passing a heated billet through an extruded metal component.
Forged flanges are more strong and robust due to their unique grain structure compared to a plate flange.
Plate flanges can be machined more easily and shaped in precise sizes in comparison to standard forged flanges.

Durability, wear resistance are seen more in forged flanges over ASTM A192 F321 plate flanges.

stainless steel 321 flanges manufacturers in india

ASTM A182 Gr F321 Chemical Composition

Grade	C	Mn	Si	P	S	Cr	Mo	Ni	N
SS 321	0.08 maximum	2 maximum	1.0 maximum	0.045 maximum	0.030 maximum	17.00 - 19.00	0.10 maximum	9.00 - 12.00	5(C+N) – 0.70 maximum
SS 321H	0.04 – 0.10	2 maximum	0.75 maximum	0.045 maximum	0.030 maximum	17.00 - 19.00	0.10 maximum	9.00 – 12.00	4(C+N) – 0.70 maximum

SA182 F321 Mechanical Properties

Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
8.0 g/cm3	1457 °C (2550 °F)	Psi – 75000 , MPa – 515	Psi – 30000 , MPa – 205	35 %

ASTM A182 F321 Flanges Specification

Specification:	ASTM A182 Stainless Steel 321 Flanges
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
Pressure Rating ANSI	2500 LBS, Class 150 LBS, 900 LBS, 1500 LBS, 300 LBS, 600 LBS
Production technique	Forged, Heat treated and machined
JIS	5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K
Size Chart	1/2" to 48"
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
EN	10Bar 16Bar 6Bar 25Bar 40Bar
Coating	Oil Black Paint, Anti-rust Paint, Zinc Plated, Cold and Hot Dip Galvanized, Yellow Transparent,
Test Certificates	EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc

Types Of Stainless Steel 321 Flanges

10 Inch, Class 150 LB, SCH 40, ASTM A182 F321 WN Flange

30 Inch, Class 600 LB, RF, ASTM A182 F321 Weld Neck Flange

12 Inch, SCH 40, RF, 150 LB, ASTM A182 F321 Weld Neck Flange

PN16, DN80, EN1092-1 Type 11, ASTM A182 F321 WN Flange

150 LB, 1/2 Inch, RF, ASTM A182 F321 Stainless Steel Threaded Flange

4 Inch. SCH 80, ASME B16.5, F321 NPT Flanges

2 Inch, 300 LB, RF, BS4504, A182 F321 Thread Flange

2 Inch x NPTF 1-1/2 Inch, RF, A182 F321 Screw Flange

ASME B16.5 SS 321 Threaded / Long Weld Neck / Werkstoff No 1.4541 Plate Flange Manufacturer In Mumbai, India.

UNS S32100 Slip On Flange 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

ASTM A182 F321 Equivalent

STANDARD	WERKSTOFF NR.	UNS	JIS	EN
Stainless Steel 321 Flanges	1.4541	S32100	SUS 321	X6CrNiTi18-10
ASTM A182 F321H	1.4878	S32109	SUS 321H	X12CrNiTi18-9

Stainless Steel 321 Flanges Weight Chart

Standard	Class	Diameter	Bolt Circle Diameter	Number of Bolts	Bolt Size	Diameter 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

Check Class 150 ASTM A182 Gr F321 Stainless Steel Pipe Flanges Mechanical Properties, Price List, Weight Chart, Dimensions.

ASTM A182 F321H Blind Flanges Dimensions

Standard Of SS 321 Flanges
CLASS	NPS	ASTM A182 F321 SORF Flanges	ASTM A182 F321 NPT Flanges	ASTM A182 F321 SW Flanges	ASTM A182 F321 Loose Flanges	ASTM A182 F321 BLRF Flanges	ASTM A182 F321 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