Duplex Steel Flanges
Duplex Steel Flanges are ideal for high-pressure piping connections, and the bigger size allows for larger fittings to be used. They make it easier to keep stiff lines and continuous tubes in good working order. They have exceptional corrosion resistance in a highly corrosive environment along with great mechanical properties. These flanges have high corrosion resistance in chloride-containing media including seawater. Duplex steel flanges are corrosion-resistant alloys that have been toughened. Ferrite and Austenite phases are mixed in the microstructures of this steel. As a result, they have both ferritic and austenitic stainless steel characteristics.These Duplex Steel Flanges are extensively in multiple industries like the chemical industry, oil and gas industry, fertilizer industry, power generation industry, petrochemical industry, engineering industry and many more such industries. These Duplex Steel Flanges have advantageous features, characteristics and properties which make them quite useful in so many industries.
Specification For Duplex Steel Flanges
| Specifications |
ASTM A182 / ASME SA182 |
| Dimensions |
ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
| Standard |
ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc. |
| Size |
1/2" (15 NB) to 48" (1200NB) |
| Class / Pressure |
150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Flange Face Type |
Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
Duplex Steel Pipe Flange Dimensions
| AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME) |
- ASME B1.20.1, Pipe Threads, General Purpose
- ASME B16.1, Cast Iron Pipe Flanges Classes 25, 125 and 250
- ASME B16.5, Flanges NPS 1/2 Through NPS 24
- ASME B16.11, Forged Fittings, Socket Welding and Threaded
- ASME B16.25, Buttwelding Ends
- ASME B16.36, Orifice Flanges
- ASME B16.47, Large Diameter Steel Flanges NPS 26 Through NPS 60
- ASME B31.1, Power Piping
- ASME B31.3, Process Piping
- ASME B46.1, Surface Texture (Surface Roughness, Waviness, and Lay)
|
Duplex Steel Flanges Pressure Rating
| ANSI/ASME B16.34 |
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 |
Duplex Steel S31803 Flanges
Duplex Steel S31803 Flanges have an increased range of corrosion resistance due to the addition of these components. As a result, it is recommended to employ this Duplex Steel S31803 Flanges in many applications since its corrosion resistance range is similar to that of austenitic stainless steel grades, i.e. from Type 304 or 316 to stainless steels with 6% molybdenum. Another reason we recommend choosing Duplex Steel S31803 Flanges is that they have excellent stress corrosion cracking resistance. Duplex Steel S31803 Flange has inherited this feature from the Ferritic side of the stainless steel. For common austenitic stainless steel grades such as Types 304 and 316, Stress Corrosion Cracking could be a concern in specific conditions such as humidity, increased temperature, or environments containing certain chemicals such as chlorides. As a result, Duplex Steel S31803 Flanges are frequently used in industries like oil and gas, petrochemicals, and marine.
Specification For Duplex Steel S31803 Flanges
| Specifications |
ASTM A182 / ASME SA182 |
| Dimensions |
ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
| Standard |
ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc. |
| Size |
1/2" (15 NB) to 48" (1200NB) |
| Class / Pressure |
150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Flange Face Type |
Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
Equivalent Grades Of Duplex Steel S31803 Flanges
| STANDARD |
WERKSTOFF NR. |
UNS |
| Duplex Steel S31803 |
1.4462 |
S31803 |
Duplex Steel S31803 Flanges Chemical Composition
| Grade |
C |
Mn |
Si |
P |
S |
Cr |
Mo |
Ni |
N |
Fe |
| S31803 |
0.030 max |
2.00 max |
1.00 max |
0.030 max |
0.020 max |
22.0 – 23.0 |
3.0 – 3.5 |
4.50 – 6.50 |
0.14 – 0.20 |
63.72 min |
S31803 Duplex Flanges Mechanical Properties
| Grades |
Density (g/cm 3) |
Density (lb/in 3) |
Melting Point (°C) |
Melting Point (°F) |
| DSS S31803 |
7.805 |
0.285 |
1420 – 1465 |
2588 – 2669 |
Duplex Steel S31803 Pipe Flange Dimensions
| AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME) |
- ASME B1.20.1, Pipe Threads, General Purpose
- ASME B16.1, Cast Iron Pipe Flanges Classes 25, 125 and 250
- ASME B16.5, Flanges NPS 1/2 Through NPS 24
- ASME B16.11, Forged Fittings, Socket Welding and Threaded
- ASME B16.25, Buttwelding Ends
- ASME B16.36, Orifice Flanges
- ASME B16.47, Large Diameter Steel Flanges NPS 26 Through NPS 60
- ASME B31.1, Power Piping
- ASME B31.3, Process Piping
- ASME B46.1, Surface Texture (Surface Roughness, Waviness, and Lay)
|
S31803 Duplex Steel Flanges Pressure Rating
| ANSI/ASME B16.34 |
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 |
Duplex Steel S32205 Flanges
Specification For Duplex Steel S32205 Flanges
| Specifications |
ASTM A182 / ASME SA182 |
| Dimensions |
ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
| Standard |
ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc. |
| Size |
1/2" (15 NB) to 48" (1200NB) |
| Class / Pressure |
150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Flange Face Type |
Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
Equivalent Grades Of Duplex Steel S32205 Flanges
| STANDARD |
WERKSTOFF NR. |
UNS |
| Duplex Steel S32205 |
1.4462 |
S32205 |
Duplex Steel S32205 Flanges Chemical Composition
| Grade |
C |
Mn |
Si |
P |
S |
Cr |
Mo |
Ni |
N |
Fe |
| S32205 |
0.030 max |
2.00 max |
1.00 max |
0.030 max |
0.020 max |
21.0 – 23.0 |
2.50 – 3.50 |
4.50 – 6.50 |
0.8 – 0.20 |
63.54 min |
S32205 Duplex Flanges Mechanical Properties
| Grades |
Density (g/cm 3) |
Density (lb/in 3) |
Melting Point (°C) |
Melting Point (°F) |
| DSS S32205 |
7.805 |
0.285 |
1420 – 1465 |
2588 – 2669 |
Duplex Steel S32205 Pipe Flange Dimensions
| AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME) |
- ASME B1.20.1, Pipe Threads, General Purpose
- ASME B16.1, Cast Iron Pipe Flanges Classes 25, 125 and 250
- ASME B16.5, Flanges NPS 1/2 Through NPS 24
- ASME B16.11, Forged Fittings, Socket Welding and Threaded
- ASME B16.25, Buttwelding Ends
- ASME B16.36, Orifice Flanges
- ASME B16.47, Large Diameter Steel Flanges NPS 26 Through NPS 60
- ASME B31.1, Power Piping
- ASME B31.3, Process Piping
- ASME B46.1, Surface Texture (Surface Roughness, Waviness, and Lay)
|
