Back to Stainless Steel Flanges Manufacturer in India

Stainless Steel 321 Flanges

We are trusted 321 Stainless Steel Flanges manufacturers in India. Bulk stockholder of ASTM A182 Gr F321h BLRF Flange. SS 321 SORF Flange Supplier, Check price of ASME B16.5 UNS S32100 WNRF Flange

Stainless Steel

On This Page

321 Stainless Steel Flanges Spec Chart Dimension Table of ANSI B16.5 SS F321 Forged Flanges 321 SS Flange Pressure Rating Chart Weight Chart of Stainless Steel 321 Flange Chemical Equation of SS 321 SORF Flange Mechanical Properties of WNR 1.4541 Weld Neck Flanges Equivalent Grade of ANSI B16.5 SS F321 Screwed Flanges Physical Properties of 321 Stainless Steel Flanges Mean Coefficient of Thermal Expansion of SS 321H Flanges Applications of ASTM A182 F321 Flanges 321 Stainless Steel Flanges Thermal Conductivity

Gallery

Stainless Steel 321 Flanges in Detail

Specification

Features & Applications

Applications of ASTM A182 F321 Flanges

Aircraft exhaust stacks
Manifolds
Chemical processing equipment
Heat Exchangers
Expansion joints
Heating element tubing

Technical Data

Full Specifications

›Technical Data

321 Stainless Steel Flanges Spec Chart

Size Chart	1/2" (15 NB) to 48" (1200NB) DN10~DN5000
JIS	16 K, 5K, 10 K, 30 K, 20 K, 40 K, 63 K
UNI / DIN	10Bar 6Bar 25Bar 16Bar 40Bar
Pressure Rating ANSI	2500 LBS, 600 LBS, 150 LBS, 900 LBS, 300 LBS, 1500 LBS
Production technique	Heat treated, Forged and machined
Connect Type/ Flange Face Type	Small Tongue, Ring Type Joint (RTJ), Flat Face (FF), Lap-Joint Face (LJF), Raised Face (RF), Small Male-Female (SMF), Large Tongue & Groove, Large Male-Female (LMF), Groove
Coating	Oil Black Paint, Anti-rust Paint, Cold and Hot Dip Galvanized, Zinc Plated, Yellow Transparent
Most common types	Threaded / Forged / Screwed / Plate
Export to	Spain, Canada, Singapore, Indonesia, Ukraine, Ireland, Brazil, Korea, Iran, India, Saudi Arabia, Thailand, Egypt, Oman, Dubai, USA, Peru, etc
Test	X-ray detector, Hydrostatic testing machine, UI trasonic flaw detector, Direct-reading Spectrograph, Magnetic particle detector
Equipment	Pushing Machine, Bending machine, electric bevelling machine, Press machine, Sand-blasting machine etc
Origin	West Europe / Indian / USA / Japan / Korean
Standards	API605, JISB2220, ANSI/ASME B16.5, API7S-15, API7S-43, BS 10, ASME/ANSI B16.5/16.36/16.47A/16.47B, B16.47 Series A & B, B16.48, ASME, BS, DIN, EN, BS1560-3.1, BS4504, MSS S44, EN-1092, DIN, ANSI, GOST, ISO70051, EN1092
Special design	As per your drawing AS, ANSI, BS, DIN and JIS / 15 NB (1/2") to 200 NB (8") / Equal and Reducing Configurations

Physical Properties of 321 Stainless Steel Flanges

Scroll to see all columns →

Grade	Density (kg/m3)	Elastic Modulus (GPa)	Mean Coefficient of Thermal Expansion (μm/m/°C)	Mean Coefficient of Thermal Expansion (μm/m/°C)_2	Mean Coefficient of Thermal Expansion (μm/m/°C)_3	Thermal Conductivity (W/m.K)	Thermal Conductivity (W/m.K)_2	Specific Heat 0-100 °C (J/kg.K)	Electrical Resistivity (nΩ.m)
Grade	Density (kg/m3)	Elastic Modulus (GPa)	0-100 °C	0-315 °C	0-538 °C	at 100 °C	at 500 °C	Specific Heat 0-100 °C (J/kg.K)	Electrical Resistivity (nΩ.m)
321	8027	193	16.6	17.2	18.6	16.1	22.2	500	720

Mean Coefficient of Thermal Expansion of SS 321H Flanges

Temperature Range	Temperature Range_2	Coefficients	Coefficients_2
°C	°F	cm/cm/°C	in/in/°F
20-100	68-212	16.6 x 10-6	9.2 x 10-6
20-600	68-912	18.9 x 10-6	10.5 x 10-6
20-1000	68-1832	20.5 x 10-6	101.4 x 10-6

321 Stainless Steel Flanges Thermal Conductivity

Temperature Range	Temperature Range_2	W/m·K	Btu · in / hr · ft2 · °F
°C	°F	W/m·K	Btu · in / hr · ft2 · °F
20-100	68-212	16.3	112.5
20-500	68-932	21.4	147.7

Check reference of material we Supplied in following countries

col_1	col_2
321 flat weld neck stainless steel floor flange	Dammam -KSA, Philippines, Belgium, Canada
Forged stainless steel 321h orifice flange	Qatar, Europe, Thailand, Malaysia
SS ASTM A182 F321 Flange	Czechia, Thailand, Malaysia, Japan
PN40 321 stainless steel welding neck flange	Malaysia, Bangladesh, Finland, Colombia
321h stainless steel pipe flange 150# 3 inch	South Africa, Kuwait, Brazil, Taiwan
A182 F321 stainless steel forging 32" flange class 150 WN	Bahrain, Singapore, Singapore, South Korea
3 inch dn900 321 stainless steel pipe flange	Philippines, UK, Nigeria, Indonesia
321h Stainless Steel 150# SORF 1/2'' Flange	Oman, Hong Kong, UAE, France
Sch40 2'' A182 F321 Stainless Steel Threaded Flange	Chile, Iran, Singapore, Germany
321h 2inch class150 socket weld flange	Netherlands, Romania, Ellington -United States, USA
ANSI B16.5 SS 321 Slip On Flanges	Egypt, Malaysia, Singapore, Saudi Arabia (KSA)
SS GOST 08Х18Н10 Socket Weld Flanges	United Kingdom -UK, Los Alamos -Mexico, Malaysia, South Africa
#150 ANSI SS UNS S32100 Pipe Flanges	Sweden, NY 12203 (USA), China, Australia
ANSI B16.5 Standard Stainless Steel 321 Forged Pipe Flanges From Class 150 to 2500	UK, Malaysia, Philippines, Malaysia
JIS SUS 321 Reducing Weld Neck Flange	Philippines, Poland, Malaysia, Italy
150# 8 inches astm b16.5 stainless steel rtj f321h BLIND flange	Europe, Canada, Dubai, Turkey
321H CL300 Stainless Steel Forged Blind Flange	United Arab Emirates (UAE), Norway, Malaysia, Europe
321 ansi b16.5 PF plate flat flange	Malaysia, Russia, UAE, Malaysia
321h high precision stainless steel flange	Singapore, Mexico, UK, Spain

›Dimensions & Weight

Dimension Table of ANSI B16.5 SS F321 Forged Flanges

Scroll to see all columns →

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

Weight Chart of Stainless Steel 321 Flange

Scroll to see all columns →

CLASS	Nominal Pipe Size	Slip On Flange	Threaded Flange	Socket Weld Flange	Lap Joint Flange	Blind Flange	Weld Neck Flange
150 lb	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	Nominal Pipe Size	Slip On	Threaded	Socket Weld	Lap Joint	Blind	Weld Neck
300 lb	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	Nominal Pipe Size	Slip On	Threaded	Socket Weld	Lap Joint	Blind	Weld Neck
400 lb	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	Nominal Pipe Size	Slip On	Threaded	Socket Weld	Lap Joint	Blind	Weld Neck
600 lb	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	Nominal Pipe Size	Slip On	Threaded	Socket Weld	Lap Joint	Blind	Weld Neck
900 lb	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	Nominal Pipe Size	Slip On	Threaded	Socket Weld	Lap Joint	Blind	Weld Neck
1500 lb	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	Nominal Pipe Size	Slip On	Threaded	Socket Weld	Lap Joint	Blind	Weld Neck
2500 lb	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

›Pressure Ratings

321 SS Flange Pressure Rating Chart

Scroll to see all columns →

col_1	col_2	col_3	col_4	col_5	col_6	col_7	col_8
ANSI/ASME B16.34	PRESSURE RATING CHART	PRESSURE RATING CHART	PRESSURE RATING CHART	PRESSURE RATING CHART	PRESSURE RATING CHART	PRESSURE RATING CHART	PRESSURE RATING CHART
Temperature °F	150#	300#	400#	600#	900#	1500#	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

›Material Properties

Chemical Equation of SS 321 SORF Flange

Scroll to see all columns →

col_1	col_2	col_3	col_4	col_5	col_6	col_7	col_8	col_9	col_10
Grade	C	Mn	Si	P	S	Cr	N	Ni	Ti
SS 321	0.08 max	2.0 max	1.0 max	0.045 max	0.030 max	17.00 - 19.00	0.10 max	9.00 - 12.00	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	0.10 max	9.00 - 12.00	4(C+N) - 0.70 max

Mechanical Properties of WNR 1.4541 Weld Neck Flanges

col_1	col_2	col_3	col_4	col_5
Density	Tensile Strength	Melting Point	Elongation	Yield Strength (0.2%Offset)
8.0 g/cm3	Psi - 75000 , MPa - 515	1457 °C (2650 °F)	35 %	Psi - 30000 , MPa - 205

Equivalent Grade of ANSI B16.5 SS F321 Screwed Flanges

col_1	col_2	col_3	col_4	col_5
STANDARD	WERKSTOFF NR.	UNS	JIS	EN
SS 321	1.4541	S32100	SUS 321	X6CrNiTi18-10
SS 321H	1.4878	S32109	SUS 321H	X12CrNiTi18-9

Stainless Steel 321 Flanges

Get a Price

Request a quote for this item

Specify the grade, size, quantity and governing standard, and we'll confirm stock and pricing — typically within the same working day.

Request a Quote for Stainless Steel 321 Flanges

Contact

Send us the spec

Grade, form, size and quantity — that's all we need to confirm stock and quote. Reach us directly, or use the form below.

Enquiry FormReply same working day

Direct Contact

Head Office

Shop No. 5, Ravi Estate, Keval Kantha Road, Near Gujarat Bottling Road, Industrial Area, Rakhial, Ahmedabad, Gujarat – 380023, India

Phone / WhatsApp

+91 93240 06771

exportompmo@gmail.com

Working Hours

Monday – Saturday8:00 AM – 8:00 PM

SundayClosed