Stainless Steel 321H Flanges and ASTM A182 F321H Weld Neck/ Blind Flange

What is Stainless Steel 321H Flanges?

Stainless steel 321H Flanges are higher carbon modifications of the 321 grade. These general-purpose austenitic grade flanges are stabilized by niobium and titanium. The flanges securely seal piping modules and are stabilized against carbide precipitation. The non-magnetic flanges in the annealed condition are able to suffice in high temperatures. Their excellent welding and forming capacities allow them to be used alongside different types of piping equipment. This flange is a flange of choice in applications where the temperature exceeds 1000 degrees F.

Comparision Between UNS S32109 Blind Flange and DIN 1.4878 Slip On flange

Flanges are piping components, which are available in a range of sizes. Slip on flanges and blind flanges are some of the most used flanges in the system, which are differentiated, based on some basic features.

UNS S32109 Blind Flange don’t have a hub or a face. DIN 1.4878 slip on flanges can be characterized by a low-profile head, which can be altered further if there is less place available.
Slip on flanges are slid on the piping component and welded using one or two fillet welds. Blind flanges are bolted directly to the line allowing room for inspection and cleaning.
Blind flanges can be employed to restrict high fluid flow. Slip-on flanges are preferred in low-pressure systems.

ASTM A182 SS 321H WNRF Flange Seawater Application

ASTM A182 SS 321H WNRF flanges are identified based on their long protruding head or hub. The head provides support and stability to piping components as they go through vigorous movement and pressures. These flanges are utilized in seawater applications as they can withstand constant fluctuations of pressure and temperatures, which are common in the sea. They are seen in offshore rigs, intake tanks, desalination units, intake pipelines, cooling lines, etc.

SS 321H Pipe Flanges vs 321H Stainless Steel Threaded Flanges

SS 321H Threaded flanges are part of pipe flanges, which can be distinguished, based on certain characteristics.

There are over 13 types of SS 321 pipe flanges, which are used to connect different piping components using welding, bolting, or threaded methods. 321H stainless steel threaded flanges consist of threads, which correspond to the threads of different modules.
Pipe flanges can be utilized in high and low-pressure systems, while threaded flanges are only preferred in low-pressure systems.
Pipe flanges consist of three parts flanges, gasket, and bolts. The threads in the threaded flange correspond to the bore of other piping systems requiring no additional parts.

SS 321H Ring Type Joint Flanges Characteristics

Some characteristics of the SS 321H Ring Type Joint Flanges include:

Superior metal to metal seal
Groove cuts on the face where it is bolted
High pressure and temperature resistance
Strong and robust connection
Consists of two sealing surfaces
Self-actuating in the system
Available as oval or octagonal cross
Easy to assemble and dissemble

Manufacturer of BS4504 PN16 SS 321H Flanges and ASTM A182 F321H Weld Neck Flange in India

Table of Content

Stainless Steel 321H Flanges Specification
Equivalent of ASME SA182 UNS S32109 Plate Flange
ASTM A182 F321H Chemical Composition
SS 321H Flange Price
321H Stainless Steel Properties
Stainless Steel 321H Blind Flange Marking
Value Added Services of Werkstoff No 1.4878 Flange
Thickness of Stainless Steel 321H Threaded Flange
ASTM A182 UNS S32109 Socket Weld Flange Features

Stainless Steel 321H Pipe Flange Pressure Rating
Stainless Steel 321H Forged Flange Testing
Stainless Steel 321H Slip On Flange Types
ASTM A182 F 321H Flanges Stock
Torque Chart Of Stainless Steel 321H Socket Weld Flange
Gasket Size Chart Of JIS SUS 321H Blind Flanges
Stainless Steel 321H Weld Neck Flange Tolerance
321H Stainless Steel Density

Stainless Steel 321H Threaded Flange

Stainless Steel 321H Pipe Flange

Stainless Steel 321H Forged Flange

Stainless Steel 321H Socket Weld Flange

Stainless Steel 321H Flanges Specification

Specifications	ASTM A182 / ASME SA182
Size	1/2″ (15 NB) to 48″ (1200NB)
Dimensions	ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Class / Pressure	150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Standard	ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.

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Equivalent of ASME SA182 UNS S32109 Plate Flange

STANDARD	WERKSTOFF NR.	UNS	JIS	EN
SS 321H	1.4878	S32109	SUS 321H	X12CrNiTi18-9

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ASTM A182 F321H Chemical Composition

Grade	C	Mn	Si	P	S	Cr	Mo	Ni	Ti
SS 321H	0.04 – 0.10	2.0 max	1.0 max	0.045 max	0.030 max	17.00 - 19.00	-	9.00 - 12.00	4(C+N) – 0.70 max

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SS 321H Flange Price

Description	Per Unit (INR)
STAINLESS STEEL FLANGES : 321H	2,774
SS FORGED FLANGES2600 BLRF WITH ID F321H	2,146
FLANGE 3/4 SW 300 LBS SCH 80 MATERIAL A312 SS321H	633
SS FORGED FLANGE.( GRADE F321H )	2,534

321H Stainless Steel Properties

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

Stainless Steel 321H Blind Flange Marking

Manufacturer & Supplier Of ANSI B16.5 SS 321H Slip on Flange, B16.47 F321H Blind Flanges In India

Value Added Services of Werkstoff No 1.4878 Flange

Sand Blasting
Electro Polish
Epoxy Coating

Thickness of Stainless Steel 321H Threaded Flange

Wall Thickness Of Stainless Steel 904L Flanges
Normal Pipe Size (NPS)	O.D. (Outside Daimeter)	Sch 10	Sch 20	Sch 30	STD Wall Outside Daimeter	Sch 40	Sch 60	EXT Hvy Outside Daimeter	Schedule 80	Schedule 100	Schedule 120	Schedule 140	Schedule 160	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
8	8.625	0.148	0.25	0.277	0.322	0.322	0.406	0.5	0.5	0.594	0.719	0.812	0.906	0.875
10	10.75	0.165	0.25	0.307	0.365	0.365	0.5	0.5	0.594	0.719	0.844	1	1.125	1
12	12.75	0.18	0.25	0.33	0.375	0.406	0.562	0.5	0.688	0.844	1	1.125	1.312	1
14	14	0.25	0.312	0.375	0.375	0.438	0.594	0.5	0.75	0.938	1.094	1.25	1.406	...
16	16	0.25	0.312	0.375	0.375	0.5	0.656	0.5	0.844	1.031	1.219	1.438	1.594	...
18	18	0.25	0.312	0.438	0.375	0.562	0.75	0.5	0.938	1.156	1.375	1.562	1.781	...
20	20	0.25	0.375	0.5	0.375	0.594	0.812	0.5	1.031	1.281	1.5	1.75	1.969	...
22	22	0.25	...	...	0.375	...	...	0.5	...	...	....	....	....	....
24	24	0.25	0.375	0.562	0.375	0.688	0.969	0.5	1.219	1.531	1.812	2.062	2.344	....
26	26	....	....	....	0.375	....	....	0.5	....	....	....	....	....	....
30	30	0.312	0.5	0.625	0.375	....	....	0.5	....	....	....	....	....	....
36	36	0.312	0.5	0.625	0.375	0.75	....	0.5	....	....	....	....	....	....
40	40	....	....	....	0.375	....	....	0.5	....	....	....	....	....	....
42	42	……..	……..	……..	0.375	……..	……..	0.5	……..	……..	……..	……..	……..	……..
48	48	……..	……..	……..	0.375	……..	……..	0.5	……..	……..	……..	……..	……..	……..

ASTM A182 UNS S32109 Socket Weld Flange Features

High tensile strength
Good load bearing capacity
Excellent versatility and weldability

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Stainless Steel 321H Pipe Flange Pressure Rating

ASTM A182 Stainless Steel 904L Flanges	Pressure And Temperature Ratings
Temperature °F	Class 150 As Per ASME B16.5	Class 300 As Per ASME B16.5	Class 400 As Per ASME B16.5	Class 600 As Per ASME B16.5	Class 900 As Per ASME B16.5	Class 1500 As Per ASME B16.5	Class 2500 As Per 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 Steel 321H Forged Flange Testing

Hardness Test
Tensile Test
Intergranular Corrosion Test

Stainless Steel 321H Slip On Flange Types

ASTM A182 F321H

SS 321H Flange

Stainless Steel 321H Weld Neck Flange

AStainless Steel 321H Slip On Flange

Stainless Steel 321H Flanges

ASTM A182 F 321H Stainless Steel Flanges

ASTM A182 321H CL300 Stainless Steel Forged Blind Flange

Stainless Steel 321H Blind Flange

A182 F304 Stainless Steel Flange SO

ASTM A182 F 321H Flanges Stock

Stainless Steel 321H Pipe Flange
SS 321H Reducing Flange
321H SS Slip On Flange
321H Stainless Steel Blind Flange
SS UNS S32109 Socket Weld Flange
SS WERKSTOFF NR. 1.4878 Flange
ASTM A182 F321H Stainless Steel Weld Neck Flange
Stainless Steel 321H Lap Joint Flange
SS 321H Threaded Flange
321H SS Raised Face Flange
321H Stainless Steel Orifice Flange
SS UNS S32109 Ring Type Joint Flange
SS WERKSTOFF NR. 1.4878 Forged Flange
ANSI B16.5 F321H Stainless Steel Flat Face Flanges
Stainless Steel 321H SWRF Flange
Stainless Steel 321H SORF Flanges
Stainless Steel 321H NipoFlange
SS 321H Weldo Flange
321H SS BLRF Flanges
321H Stainless Steel WNRF Flanges
SS 321H Raised Face Blind Flanges

SS 321H RTJ Flange
321H SS Exhaust Flanges
Stainless Steel 321H Tongue & Groove Flanges
SS 321H Reducing Flanges
321H SS Plate Flanges
321H Stainless Steel Puddle Flanges
SS UNS S32109 Male & Female Flanges
SS 321H Ring Spacer
SS WERKSTOFF NR. 1.4878 Forged Flanges
ASTM A182 Stainless Steel 321H Bleed Ring Flange
Stainless Steel 321H Screwed Flanges
SS 321H Square Flanges
321H SS BS 10 Flanges
321H Stainless Steel BS 4504 Flanges
SS UNS S32109 ASME B16.5 Flanges
SS WERKSTOFF NR. 1.4878 EN 1092-1 Flanges
SS ASTM A182 F321H SAE Flanges
ASTM A182 Gr. 321H SS RTJ Flanges
ANSI B16.5 F321H Stainless Steel ASME Flanges

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Torque Chart Of Stainless Steel 321H Socket Weld Flange

Size in Inches	Size in Millimeter	Imperfections Max. Radial Projection
Size in Inches	Size in Millimeter	No Deeper Than the Bottom of the Serrations, millimeter	Deeper Than the Bottom of the Serrations, 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
20	500	12.0	6.0
24	600	12.0	6.0

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Gasket Size Chart Of JIS SUS 321H Blind Flanges

Normal Pipe Size	Gasket I.D. (Inside Daimeter)	Gasket O.D. (Outside Daimeter)
Normal Pipe Size	Gasket I.D. (Inside Daimeter)	150 LB	300 LB	400 LB	600 LB	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

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Class 300/ 600/ 900 Spring/ groove UNS S32109 Nippo Flanges, AISI 321H Stainless Steel BLRF/ Orifice Flange manufacturer in India and Check Tolerance of SUS 321H Long Weld Neck Flange material

Stainless Steel 321H Weld Neck Flange Tolerance

Stainless Steel 904L Flanges		Tolerance Table
A	O.D. (Outside Diameter)	When O.D. (Outside Diameter) is 24" or less: ±1/16" (1.6 millimeter) When O.D. (Outside Diameter) is over 24": ±1/8" (3.2 millimeter)
D	Inside Diameter (I.D.)	10" and smaller: ±1/32" (0.8 mm) 12" thru 18": +1/8" (3.2 mm) 20" and larger: -1/16" (1.6 mm)
B	Diameter of contact face	1/16" raised face: ±1/32" (0.8 mm) 1/4" RF (Raised Face), T/G (Tongue & Groove), (male & female), (m/f): ±1/64" (0.4 millimeter)
J	Diameter of hub at base	When hub base is 24" or smaller: ±1/16" (1.6 millimeter) When hub base is over 24": ±1/8" (3.2 millimeter)
H	Diameter of hub at point of welding	5" and smaller: +3/32" (2.4 mm), -1/32" (0.8 mm) 6" and larger: +5/32" (4.0 mm), -1/32 (0.8 mm)
P	Drilling	Circle Bolts: ±1/16" (1.6 mm) Bolts hole spacing: ±1/32" (0.8 mm)
	Eccentricity of bolt circle 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	Thickness	18" and smaller: ±1/8" (3.2 mm), -0" 20" and larger: ±3/16" (4.8 mm), -0"
K	Length of hub	10" and smaller: ±1/16" (1.6 mm) 12" and larger: ±1/8" (3.2 mm)

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321H Stainless Steel Density

Density at 20°C kg/m3		7.9

Stainless Steel 321H Flanges