Stainless steel 321 Flange
JN ALLOY supplies 321 SO flanges, 321 WN flanges, UNS S32100 blind flanges, 1.4541 321 plain flanges, ASTM A182 UNS S32100 SW flanges, 321 spectacle blind flanges, 321 threaded flanges, 1.4541 spacer ring,UNS S32100 paddle blind/blank, 321 bleed/test/drip ring, 321 reducing flange.
Stainless steel 321 flange refers to a pipe connector which is widely used in the connection of pipeline systems, valves, pumps and other equipment in various industrial fields. SS 321 flanges come in various types, including weld neck (WN), long weld neck (LWN), slip-on (SO), socket weld (SW), blind, plate, threaded, lap joint, orifice, and spectacle blind flanges. Additionally, there are special products available, such as rings, forgings, discs, and flange sleeves, catering to diverse industrial applications and requirements.
Stainless steel 321 Flange is a kind of austenitic stainless steel. In addition to containing high chromium (about 17% to 19%) and nickel (about 9% to 12%) in its chemical composition, titanium (Ti) is added as a stabilizing element. The addition of titanium effectively inhibits the precipitation of chromium carbide in high temperature environments, thereby significantly improving the material's resistance to intergranular corrosion.
This feature makes UNS S32100 flanges particularly suitable for applications in high temperature environments. For example, in the petrochemical, thermal power generation, aerospace and nuclear energy industries, they are often used to connect pipeline systems that need to withstand high temperatures and corrosive media. Jinie Technology (Jiangsu) Co., LTD supply all different types and scales of flanges. Please feel free to contact us for further product information and pricing.
321 Stainless Steel Flanges Specification
Material: ASTM A182 Standard Specification for Forged or Rolled Alloy Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High Temperature Service
Standard: ASME B16.5, ASME B16.47, DIN, EN, BS, JIS
Size: 1/2"-48", DN6-DN400
Class: 150#,300#,400#,600#,900#,1500#,2500#
Composition Chart of SS 321 Flange
|
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 321 Flanges Mechanical Properties Chart
|
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 % |
SS 321 Flanges Equivalent Grades
|
STANDARD |
WERKSTOFF NR. |
UNS |
JIS |
EN |
|
321 |
1.4541 |
S32100 |
SUS321 |
X6CrNiTi18-10 |
UNS S32100 Stainless Steel Flange Physical Properties
|
Grade |
Density (kg/m3) |
Elastic Modulus (GPa) |
Mean Coefficient of Thermal Expansion (μm/m/°C) |
Thermal Conductivity (W/m.K) |
Specific Heat 0-100°C (J/kg.K) |
Electrical Resistivity (nΩ.m) |
|||
|
0-100°C |
0-315°C |
0-538°C |
at 100°C |
at 500°C |
|||||
|
321 |
8027 |
193 |
16.6 |
17.2 |
18.6 |
16.1 |
22.2 |
500 |
720 |
Material Testing of 321 Stainless Steel Flange
Jinie Technology (Jiangsu) Co., LTD ensures that all our materials go through strict quality tests before dispatching them to our clients.
• Mechanical Testing Such as Tensile of Area
• Hardness Test
• Chemical Analysis – Spectro Analysis
• Positive Material Identification – PMI Testing
• Flattening Test
• Micro and MacroTest
• Pitting Resistance Test
• Flaring Test
• Intergranular Corrosion (IGC) Test
SS 321 Socket flange dimensions class 150 (ASME B16.5)
|
Pipe |
Flange |
Hub |
Raised Face |
Drilling Data |
Weight |
||||||||
|
Pipe Size |
Outside Diameter |
Overall Diameter |
Inside Diameter |
Flange Thickness min |
Overall Length |
Socket Diameter |
Depth of |
Hub Diameter |
Face Diameter |
No. of |
Bolt Hole Diameter |
Diameter of Circle of Holes |
kg/piece |
| in mm |
in mm |
in mm |
in mm |
in mm |
in mm |
in mm |
in mm |
in mm |
in mm |
in mm |
|||
|
1/2 |
0.840 21.30 |
3.500 88.90 |
0.620 15.70 |
0.440 11.20 |
0.620 15.70 |
0.880 22.40 |
0.380 9.600 |
1.190 30.20 |
1.380 35.10 |
4 |
0.620 15.70 |
2.380 60.45 |
0.42 |
|
3/4 |
1.050 26.70 |
3.880 98.60 |
0.820 20.80 |
0.500 12.70 |
0.620 15.70 |
1.090 27.70 |
0.440 11.10 |
1.500 38.10 |
1.690 42.90 |
4 |
0.620 15.70 |
2.750 69.85 |
0.59 |
|
1 |
1.315 33.40 |
4.250 108.0 |
1.050 26.70 |
0.560 14.20 |
0.690 17.50 |
1.360 34.50 |
0.500 12.70 |
1.940 49.30 |
2.000 50.80 |
4 |
0.620 15.70 |
3.120 79.25 |
0.81 |
|
11/4 |
1.660 42.20 |
4.620 117.3 |
1.380 35.10 |
0.620 15.70 |
0.810 20.60 |
1.700 43.20 |
0.560 14.20 |
2.310 58.70 |
2.500 63.50 |
4 |
0.620 15.70 |
3.500 88.90 |
1.07 |
|
11/2 |
1.900 48.30 |
5.000 127.0 |
1.610 40.90 |
0.690 17.50 |
0.880 22.30 |
1.950 49.50 |
0.620 15.70 |
2.560 65.00 |
2.880 73.15 |
4 |
0.620 15.70 |
3.880 98.60 |
1.36 |
|
2 |
2.375 60.30 |
6.000 152.4 |
2.070 52.60 |
0.750 19.10 |
1.000 25.40 |
2.440 62.00 |
0.690 17.50 |
3.060 77.70 |
3.620 91.90 |
4 |
0.750 19.10 |
4.750 120.7 |
2.10 |
|
21/2 |
2.875 73.00 |
7.000 177.8 |
2.470 62.70 |
0.880 22.40 |
1.120 28.40 |
2.940 74.70 |
0.750 19.00 |
3.560 90.40 |
4.120 104.6 |
4 |
0.750 19.10 |
5.500 139.7 |
3.33 |
|
3 |
3.500 88.90 |
7.500 190.5 |
3.070 78.00 |
0.940 23.90 |
1.190 30.20 |
3.570 90.70 |
0.810 20.60 |
4.250 108.0 |
5.000 127.0 |
4 |
0.750 19.10 |
6.000 152.4 |
3.90 |
SS 1.4541 Stainless Steel Flanges Pressure Rating Table
|
Temperature |
Working Pressures by Classes, psig |
|||||||
|
°F |
°C |
150 lb |
300 lb |
400 lb |
600 lb |
900 lb |
1500 lb |
2500 lb |
|
-20 to 100 |
-29 to 37.8 |
275 |
720 |
960 |
1440 |
2160 |
3600 |
6000 |
|
300 |
149 |
230 |
595 |
795 |
1190 |
1785 |
2975 |
4960 |
|
500 |
260 |
170 |
515 |
685 |
1030 |
1545 |
2570 |
4285 |
|
700 |
371 |
110 |
465 |
620 |
930 |
1395 |
2330 |
3880 |
|
850 |
454 |
65 |
445 |
595 |
895 |
1340 |
2230 |
3720 |
|
1000 |
538 |
20 |
355 |
475 |
715 |
1070 |
1785 |
2970 |
|
1150 |
566 |
- |
235 |
315 |
465 |
710 |
1185 |
1970 |
|
1300 |
704 |
- |
110 |
145 |
220 |
330 |
550 |
915 |
|
1400 |
760 |
- |
65 |
85 |
130 |
195 |
325 |
545 |
|
1500 |
816 |
- |
40 |
50 |
75 |
115 |
190 |
315 |