Basic austenitic grade 18/8 steel known as Grades A182 F321 Flange has been stabilised by the addition of Titanium (321). With the inclusion of titanium, Grade 321 Stainless Steel differs from grade 304 only in terms of its chemical composition. These astm a182 grade f321 grades are utilised because, when heated between 425 and 850 °C for carbide precipitation, they are not susceptible to intergranular corrosion. The astm a182 f321 grade is the best option for applications requiring use at high temperatures up to around 900 °C.
Table of Content
The stainless steel 321 flanges can tolerate high temperatures and have a high tensile strength. They also provide good phase stability and scaling resistance, as well as resistance to subsequent aqueous corrosion. A variation of the 321 stainless steel flange, grade 321H stainless steel has a higher carbon content than the original. To boost high temperature strength, the 321 stainless steel flanges suppliers have undergone this change. The 321 ss flanges are constrained by the fact that titanium does not transmit well across a high temperature arc. As a result, using it as a welding consumable is not advised.
The 321 stainless steel flange jis 10k typically has outstanding forming and welding capabilities, much as other austenitic grades. The 321 stainless steel flanges pn16 can actually be easily brake or roll shaped and have excellent welding qualities. The alloy does not need to be annealed after welding. The 321 stainless steel flanges are very tough, even at extremely low temperatures.

The dimensions of 321 stainless steel flanges that are used the most frequently are ASME/ANSI B16.5. The pressure ratings for 321 stainless steel flanges range from 150 pounds to 2500 pounds. The 321 stainless steel flange manufacturers in India provide these 321 stainless steel flanges to a number of industries, including the shipbuilding, petroleum, chemical, and power sectors. Click on the link provided below to view a pricing list for 321 stainless steel flanges to learn more about their costs.
| Specifications | Stainless Steel 321 Flanges |
|---|---|
| ASME B16.5 Stainless Steel 321 Flanges size range | 1/2" (15 NB) to 48" (1200NB) DN10~DN5000 |
| Stainless Steel 321 Flanges Standards | ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flanges. |
| Stainless Steel 321 Flanges Standard DIN | 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 |
| Stainless Steel 321 Flanges Standard ANSI | Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS |
| Stainless Steel 321 Flanges Standard UNI | 6Bar 10Bar 16Bar 25Bar 40Bar |
| Stainless Steel 321 Flanges Standard JIS | 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K |
| Stainless Steel 321 Flanges Standard EN | 6Bar 10Bar 16Bar 25Bar 40Bar |
| Main Types | Forged / Threaded / Screwed / Plate |
| Flange supporting material | Gasket, Ring Joint, Flange Bolts |
| Stainless Steel 321 Pipe Flanges Test Certificates | EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc |
| Production technique |
|
| Connect Type/ Flange Face Type | Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, , Groove |
| Most common types of Stainless Steel 321 Flanges |
|
| Special design | As per your drawing AS, ANSI, BS, DIN and JIS Stainless Steel 321 Flanges Threaded Flanges, Socketweld Flanges, Slip-On Flanges, Blind Flanges, Weld Neck Flanges |
| Test | Direct-reading Spectrograph, Hydrostatic testing machine, X-ray detector, UI trasonic flaw detector, Magnetic particle detector |
| Origin | Indian / West Europe / Japan / USA / Korean |
| Equipment | Press machine, Bending machine, Pushing Machine, electric bevelling machine, Sand-blasting machine etc |
| Specialized manufacturer of |
|
| Stainless Steel 321 Flanges Standard | ANSI DIN, GOST, JIS, UNI, BS, AS2129, AWWA, EN, SABS, NFE etc.
|
| Key markets and industries for Stainless Steel 321 Flanges |
|
| Export to | Ireland, Singapore, Indonesia, Ukraine, Saudi Arabia, Spain, Canada, USA, Brazil, Thailand, Korea, Iran, India, Egypt, Oman, Dubai, Peru, etc |
| Stainless Steel 321 Flanges Application |
|
| Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175 | |

| AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME) |
|
|---|
15mm (1/2") Stainless Steel 321 Flanges Weight Chart
Pipe Normal Diam. |
O.D. Flange |
Thk. Of Flange Min |
Diam. of Hub |
Diameter of Raised Face |
Length Hub.Y |
Thread Length |
Diam. of Bolt Circle |
Diam. of Bolt Holes |
Number of Bolts |
Diam. of Bolts (inch) |
KG |
LB |
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
inch |
dn |
O |
C |
X |
G |
Y |
T |
BC |
BH |
BN |
BD |
||
1/2" |
15 |
89.00 |
11.20 |
30.20 |
35.10 |
15.70 |
15.70 |
60.50 |
15.80 |
4 |
1/2" |
0.4 |
0.9 |
3/4" |
20 |
98.50 |
12.70 |
38.10 |
42.90 |
15.70 |
15.70 |
69.90 |
15.80 |
4 |
1/2" |
0.7 |
1.5 |
1" |
25 |
108.00 |
14.20 |
49.30 |
50.80 |
17.50 |
17.50 |
79.30 |
15.80 |
4 |
1/2" |
0.8 |
1.8 |
1-1/4" |
32 |
117.50 |
15.70 |
58.70 |
63.50 |
20.60 |
20.60 |
88.90 |
15.80 |
4 |
1/2" |
1.2 |
2.6 |
1-1/2" |
40 |
127.00 |
17.50 |
65.00 |
73.20 |
22.40 |
22.40 |
98.60 |
15.80 |
4 |
1/2" |
1.5 |
3.3 |
2" |
50 |
152.50 |
19.10 |
77.70 |
91.90 |
25.40 |
25.40 |
120.70 |
19.10 |
4 |
5/8" |
2.3 |
5.1 |
2-1/2" |
65 |
178.00 |
22.40 |
90.40 |
104.60 |
28.40 |
28.40 |
139.70 |
19.10 |
4 |
5/8" |
3.7 |
8.1 |
3" |
80 |
190.50 |
23.90 |
108.00 |
127.00 |
30.20 |
30.20 |
152.40 |
19.10 |
4 |
5/8" |
4.1 |
9 |
3-1/2" |
90 |
216.00 |
23.90 |
122.20 |
139.70 |
31.80 |
31.80 |
177.80 |
19.10 |
8 |
5/8" |
5.1 |
11.2 |
4" |
100 |
228.50 |
23.90 |
134.90 |
157.20 |
33.30 |
33.30 |
190.50 |
19.10 |
8 |
5/8" |
5.9 |
13 |
5" |
125 |
254.00 |
23.90 |
163.60 |
185.70 |
36.60 |
36.60 |
215.90 |
22.40 |
8 |
3/4" |
7 |
15.4 |
6" |
150 |
279.50 |
25.40 |
192.00 |
215.90 |
39.60 |
39.60 |
241.30 |
22.40 |
8 |
3/4" |
8.4 |
18.5 |
8" |
200 |
343.00 |
28.40 |
246.10 |
269.70 |
44.50 |
44.50 |
298.50 |
22.40 |
8 |
3/4" |
13 |
28.6 |
10" |
250 |
406.50 |
30.20 |
321.80 |
323.90 |
49.30 |
49.30 |
362.00 |
25.40 |
12 |
7/8" |
18 |
39.5 |
12" |
300 |
482.50 |
31.80 |
365.30 |
381.00 |
55.60 |
55.60 |
431.80 |
25.40 |
12 |
7/8" |
29 |
64 |
14" |
350 |
533.50 |
35.10 |
400.10 |
412.80 |
57.20 |
57.20 |
476.30 |
28.50 |
12 |
1" |
39 |
86 |
16" |
400 |
597.00 |
36.60 |
457.20 |
469.90 |
63.50 |
63.50 |
539.80 |
28.50 |
16 |
1" |
47 |
103 |
18" |
450 |
635.00 |
39.60 |
505.00 |
533.40 |
68.30 |
68.30 |
577.90 |
31.80 |
16 |
1 1/8" |
57 |
126 |
20" |
500 |
698.50 |
42.90 |
558.80 |
584.20 |
73.20 |
73.20 |
635.00 |
31.80 |
20 |
1 1/8" |
76 |
167 |
24" |
600 |
813.00 |
47.80 |
663.40 |
692.20 |
82.60 |
82.60 |
749.30 |
35.10 |
20 |
1 1/4" |
97 |
214 |
Temp. °F |
150 |
300 |
400 |
600 |
900 |
1500 |
2500 |
|---|---|---|---|---|---|---|---|
-20 to 100 |
275 |
720 |
960 |
1440 |
2160 |
3600 |
6000 |
200 |
235 |
620 |
825 |
1240 |
1860 |
3095 |
5160 |
300 |
215 |
560 |
745 |
1120 |
1680 |
2795 |
4660 |
400 |
195 |
515 |
685 |
1025 |
1540 |
2570 |
4280 |
500 |
170 |
480 |
635 |
955 |
1435 |
2390 |
3980 |
600 |
140 |
450 |
600 |
900 |
1355 |
2255 |
3760 |
650 |
125 |
445 |
590 |
890 |
1330 |
2220 |
3700 |
700 |
110 |
430 |
580 |
870 |
1305 |
2170 |
3620 |
750 |
95 |
425 |
570 |
855 |
1280 |
2135 |
3560 |
800 |
80 |
420 |
565 |
845 |
1265 |
2110 |
3520 |
850 |
65 |
420 |
555 |
835 |
1255 |
2090 |
3480 |
900 |
50 |
415 |
555 |
830 |
1245 |
2075 |
3460 |
950 |
35 |
385 |
515 |
775 |
1160 |
1930 |
3220 |
1000 |
20 |
350 |
465 |
700 |
1050 |
1750 |
2915 |
1050 |
20 |
345 |
460 |
685 |
1030 |
1720 |
2865 |
1100 |
20 |
305 |
405 |
610 |
915 |
1525 |
2545 |
1150 |
20 |
235 |
315 |
475 |
710 |
1185 |
1970 |
1200 |
20 |
185 |
245 |
370 |
555 |
925 |
1545 |
1250 |
20 |
145 |
195 |
295 |
440 |
735 |
1230 |
1300 |
20 |
115 |
155 |
235 |
350 |
585 |
970 |
1350 |
20 |
95 |
130 |
190 |
290 |
480 |
800 |
1400 |
20 |
75 |
100 |
150 |
225 |
380 |
630 |
1450 |
20 |
60 |
80 |
115 |
175 |
290 |
485 |
1500 |
20 |
40 |
55 |
85 |
125 |
205 |
345 |
Flange Schedule/Class |
Pipe Size - Pipe Flanges |
Flange Connection Type |
Flange Material |
Max. Pressure |
|---|---|---|---|---|
ASME B16.5 Class 150 |
1/2" |
FNPT |
Stainless Steel 321 Flanges |
150 psi |
ASME B16.5 Class 150 |
1/2" |
Socket Weld |
Stainless Steel 321 Flanges |
275 psi |
ASME B16.5 Class 150 |
1/2" |
Welded |
Stainless Steel 321 Flanges |
150 psi |
ASME B16.5 Class 150 |
3/4" |
FNPT |
Stainless Steel 321 Flanges |
150 psi |
ASME B16.5 Class 150 |
3/4" |
Socket Weld |
Stainless Steel 321 Flanges |
275 psi |
ASME B16.5 Class 150 |
1-1/4" |
Socket Weld |
Stainless Steel 321 Flanges |
275 psi |
ASME B16.5 Class 150 |
1-1/2" |
Socket Weld |
Stainless Steel 321 Flanges |
275 psi |
ASME B16.5 Class 150 |
2" |
FNPT |
Stainless Steel 321 Flanges |
150 psi |
ASME B16.5 Class 150 |
2" |
Socket Weld |
Stainless Steel 321 Flanges |
275 psi |
ASME B16.5 Class 150 |
2-1/2" |
Socket Weld |
Stainless Steel 321 Flanges |
275 psi |
ASME B16.5 Class 150 |
3" |
Socket Weld |
Stainless Steel 321 Flanges |
275 psi |
ASME B16.5 Class 150 |
4" |
FNPT |
Stainless Steel 321 Flanges |
150 psi |
ASME B16.5 Class 150 |
4" |
Socket Weld |
Stainless Steel 321 Flanges |
275 psi |
ASME B16.5 Class 300 |
1/2" |
Slip On |
Stainless Steel 321 Flanges |
720 psi |
ASME B16.5 Class 300 |
1/2" |
Slip On |
Stainless Steel 321 Flanges |
720 psi |
ASME B16.5 Class 300 |
1" |
Slip On |
Stainless Steel 321 Flanges |
720 psi |
ASME B16.5 Class 300 |
1" |
Slip On |
Stainless Steel 321 Flanges |
720 psi |
ASME B16.5 Class 300 |
1-1/4" |
FNPT |
Stainless Steel 321 Flanges |
720 psi |
ASME B16.5 Class 300 |
1-1/4" |
Slip On |
Stainless Steel 321 Flanges |
720 psi |
ASME B16.5 Class 300 |
1-1/2" |
Slip On |
Stainless Steel 321 Flanges |
720 psi |
ASME B16.5 Class 300 |
1-1/2" |
Slip On |
Stainless Steel 321 Flanges |
720 psi |
ASME B16.5 Class 300 |
2" |
Slip On |
Stainless Steel 321 Flanges |
720 psi |
ASME B16.5 Class 300 |
2" |
Slip On |
Stainless Steel 321 Flanges |
720 psi |
ASME B16.5 Class 300 |
2-1/2" |
Slip On |
Stainless Steel 321 Flanges |
720 psi |
ASME B16.5 Class 300 |
2-1/2" |
Slip On |
Stainless Steel 321 Flanges |
720 psi |
ASME B16.5 Class 300 |
3" |
Slip On |
Stainless Steel 321 Flanges |
720 psi |
ASME B16.5 Class 300 |
3" |
Slip On |
Stainless Steel 321 Flanges |
720 psi |
ASME B16.5 Class 300 |
4" |
Slip On |
Stainless Steel 321 Flanges |
720 psi |
ASME B16.5 Class 300 |
4" |
Slip On |
Stainless Steel 321 Flanges |
720 psi |
| Stainless Steel 321 Flanges | |
| Stainless Steel 321 Blind Flanges | Stainless Steel 321 Reducing Flanges |
| Stainless Steel 321 Lap Joint Flanges | Stainless Steel 321 Plate Flanges |
| Stainless Steel 321 Orifice Flanges | Stainless Steel 321 Forged Flanges |
| Stainless Steel 321 Slip-On Flanges | Stainless Steel 321 Flanges |
| Stainless Steel 321 Weld Neck Flanges | Stainless Steel 321 Socket Weld Flanges |
| Stainless Steel 321 Ring Type Joint Flanges | |
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 |
STANDARD |
WERKSTOFF NR. |
UNS |
JIS |
EN |
SS 321 |
1.4541 |
S32100 |
SUS 321 |
X6CrNiTi18-10 |
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 % |
DIN 1.4541 Stainless Steel SAE Flanges |
Stainless Steel 321 BLRF Flanges |
SS 321 Screwed Flanges Exporter |
EN 1.4541 Reducing Flanges Wholesaler |
AISI 321 Flanges |
ASTM A182 Stainless Steel 321 Exhaust Flanges |
Stainless Steel UNS S32100 Puddle Flanges |
321 Stainless Steel EN 1092-1 Flanges |
A182 F321 SS RTJ Flanges |
SUS 321 Split Flanges Stockist |
Stainless Steel 321 Flanges Manufacturer |
ASME SA182 Stainless Steel 321 Tank Flanges |
321 SS SORF Flanges |
321 Stainless Steel WNRF Flanges Supplier |
| ASTM A182 Stainless Steel 321 Companion Flanges | Stainless Steel 321 Orifice Flanges |
| ASTM A182 Stainless Steel 321 Class 150 Flanges | ASTM A182 Stainless Steel 321 Duct Flanges |
| ASTM A182 Stainless Steel 321 Cover Flanges | A182 Stainless Steel 321 Orifice Flanges |
| Large Diameter ASTM A182 Stainless Steel 321 Flanges | ASTM A182 Stainless Steel 321 SWRF Flanges |
| Table E ASTM A182 Stainless Steel 321 Flanges | ASME B16.5 Stainless Steel 321 Socket weld Flanges |
| ASTM A182 Stainless Steel 321 Tube Flanges | ASME SA182 Stainless Steel 321 Header Flanges |
| ASTM A182 Stainless Steel 321 Stub End Flanges | Stainless Steel 321 Raised Face Weld Neck Flanges |
| ASTM A182 Stainless Steel 321 Exhaust Flanges | ASME SA182 Stainless Steel 321 Slip On Plate Flanges |
| ASTM A182 Stainless Steel 321 Header Flanges | Stainless Steel 321 Slip On Flanges |
| ASTM A182 Stainless Steel 321 Shower Rod Flanges | ASTM A182 Stainless Steel 321 Sae Flanges |
| ASTM A182 Stainless Steel 321 Socket Weld Flanges | ASTM A182 Stainless Steel 321 WNRF Flanges |
| ASTM A182 Stainless Steel 321 Sbc Header Flanges | Stainless Steel 321 Raised Face Blind Flanges |
| ASTM A182 Stainless Steel 321 Split Flanges | ASME SA182 Stainless Steel 321 Blind Flanges |
| ASTM A182 Stainless Steel 321 Slip-On Pipe Flanges | Stainless Steel 321 Blind Flanges |
| ASTM A182 Stainless Steel 321 Slip On Flanges | Stainless Steel 321 Weld Neck Flanges |
| ASTM A182 Stainless Steel 321 Screwed Flanges | ASTM A182 Stainless Steel 321 Clad Flanges |
| ASTM A182 Stainless Steel 321 Square Flanges | ASTM A182 Stainless Steel 321 Ansi Flanges |
| ASTM A182 Stainless Steel 321 Floor Flanges | Stainless Steel 321 Flanges |
| ASTM A182 Stainless Steel 321 Pipe Flanges | Stainless Steel 321 Raised Face Slip On Flanges |
| ASTM A182 Stainless Steel 321 Plate Flanges | A182 Stainless Steel 321 Pipe Flanges |
| ASTM A182 Stainless Steel 321 Reducing Flanges | Stainless Steel 321 Reducing Flanges |
| ASTM A182 Stainless Steel 321 Wnrf Flanges | ASME SA182 Stainless Steel 321 Reducing Flanges |
| ASTM A182 Stainless Steel 321 Split Flanges | Stainless Steel 321 Reducing Flanges |
| ASTM A182 Stainless Steel 321 Turbo Flanges | ASTM A182 Stainless Steel 321 Forged Flanges |
| ASTM A182 Stainless Steel 321 Vacuum Flanges | ASTM A182 Stainless Steel 321 Reducing Flanges |
| ASTM A182 Stainless Steel 321 Reducing Flanges | Stainless Steel 321 Forged Flanges |
| ASTM A182 Stainless Steel 321 Backing Flanges | Stainless Steel 321 Exhaust Flanges |
| Ansi 150 ASTM A182 Stainless Steel 321 Flanges | ASTM A182 Stainless Steel 321 BLRF Flanges |
| ASTM A182 Stainless Steel 321 Blank Flanges | Stainless Steel 321 Orifice Flanges |
| ASTM A182 Stainless Steel 321 Bsp Flanges | ASME SA182 Stainless Steel 321 Orifice Flanges |
| ASTM A182 Stainless Steel 321 Forged Flanges | ASME SA182 Stainless Steel 321 Flanges |
| Gaskets For ASTM A182 Stainless Steel 321 Flanges | Stainless Steel 321 Flanges |
| ASTM A182 Stainless Steel 321 Handrail Flanges | ASTM A182 Stainless Steel 321 fastenersonline Flanges |
| High Pressure ASTM A182 Stainless Steel 321 Flanges | ASTM A182 Stainless Steel 321 Flanges |
| ASTM A182 Stainless Steel 321 Lap Joint Flanges | ASTM A182 Stainless Steel 321 Flanges |
| Custom ASTM A182 Stainless Steel 321 Flanges | Stainless Steel 321 Socket weld Flanges |
| Class 600 ASTM A182 Stainless Steel 321 Flanges | ASME SA182 Stainless Steel 321 Socket weld Flanges |
| ASTM A182 Stainless Steel 321 Din Flanges | Stainless Steel 321 Socket weld Flanges |
| ASTM A182 Stainless Steel 321 Long Weld Neck Flanges | Stainless Steel 321 Long weld Neck Flanges |
| ASTM A182 Stainless Steel 321 Metric Flanges | ASME SA182 Stainless Steel 321 Long weld Neck Flanges |
| ASTM A182 Stainless Steel 321 Muffler Flanges | Stainless Steel 321 Long weld Neck Flanges |
| ASTM A182 Stainless Steel 321 Pump Flanges | ASTM A182 Stainless Steel 321 Orifice Flanges |
| ASTM A182 Stainless Steel 321 Pressed Flanges | Stainless Steel 321 Ring Type Joint Flanges |
| ASTM A182 Stainless Steel 321 Puddle Flanges | ASME SA182 Stainless Steel 321 Ring Type Joint Flanges |
| ASTM A182 Stainless Steel 321 Pad Flanges | Stainless Steel 321 RTJ Flanges |
| ASTM A182 Stainless Steel 321 Reducing Flanges | Stainless Steel 321 RTJ Flanges |
| ASTM A182 Stainless Steel 321 Raised Face Flanges | ASTM A182 Stainless Steel 321 RTJ Flanges |
| ASTM A182 Stainless Steel 321 Ring Flanges | BS4504 Stainless Steel 321 RTJ Flanges |
View Astm A182 Gr F321 Equivalent, Chemical Makeup, Physical Characteristics, And Dimensions, Check out the pressure and temperature ratings for 321 stainless steel flanges. Get Stock Of Austenitic Stainless Steel 321 Class 300 Threaded Flange, BS 10 Stainless Steel F321 WNRF Flange, and ASME SA182M Gr 321 SWRF Flange At Lower Prices Compared To USA & UK
