Duplex Steel S31803 Flanges Manufacturer
Duplex steel S31803 flanges are a type of pipe fitting commonly used for connecting pipes in the oil and gas industry, chemical processing plants, pulp and paper mills, and other high-stress applications. S31803 Duplex Steel Flanges are typically made from a combination of austenitic and ferritic stainless steel, giving them unique properties.
One of the biggest benefits of Duplex Steel S31803 Flanges is their superior corrosion resistance. Unlike other types of stainless steel, this alloy can withstand harsh environments and chemicals without degrading quality. ASTM A182 S31803 Flanges also offer excellent mechanical properties, including high strength and toughness, making them ideal for high-stress applications.
Table Of content
- About Duplex Steel S31803 Flanges
- Specification List of DSS S31803 Flanges
- Equivalent Grades Of Duplex Steel S31803 Flanges
- Manufacturing Standards of ASTM A182 S31803 Flanges
- Different Types of Duplex Steel S31803 Flanges
- Available Stock of DSS S31803 Flanges
- DSS S31803 Flanges Weight Chart
- Duplex Steel S31803 Pipe Flange Dimensions
- S31803 Duplex Steel Flanges Pressure Rating
- Chemical Structure of Duplex Steel S31803 Flanges
- Mechanical Properties of DSS S31803 Flanges
- We Serve Application Industry
- We Export Duplex Steel S31803 Flanges Across the Globe
- Domestic Supply Duplex Steel S31803 Flanges
Duplex Steel S31803 Flanges are used in various industries, including oil and gas, chemical processing, pulp and paper, and food and beverage processing. Duplex Stainless Steel S31803 Flanges are often used to connect pipes in applications where stress, temperature, and pressure are factors. Because of their superior properties, they are ideal for harsh environments, such as offshore oil rigs and chemical processing plants.
DSS 1.4462 Flanges comprise around 22% chromium, 5-6% nickel, and 3% molybdenum. This unique composition gives them excellent corrosion resistance, strength, and toughness. The presence of molybdenum gives them extra resistance to pitting and crevice corrosion, making them even more durable. The high-quality duplex products we provide at Global Steel include Duplex Steel S32205 Flanges, Super Duplex Steel S32750 Flanges and more.
UNS S31803 Flanges offer a strength and corrosion resistance blend crucial for industrial applications. These flanges are essential in environments demanding robust performance, such as offshore structures and chemical plants. With exceptional resistance to pitting and crevice corrosion, they ensure the integrity of systems handling corrosive agents. Their ability to withstand elevated temperatures further extends their utility in diverse settings, contributing to operational reliability. We provide an extensive range of products, such as Nickel Alloy 201 Forged Fittings, Alloy 20 Pipe Fittings, and many others.
ASME B16.5 S31803 Flanges exhibit a unique set of properties. Their dual-phase microstructure provides a balance of strength and corrosion resistance. They offer excellent resistance to pitting and crevice corrosion in aggressive environments. DSS S31803 Flanges maintain mechanical integrity and performance even at elevated temperatures. They provide enhanced toughness and durability, making them suitable for demanding industrial applications.
What are the key properties of Duplex Steel S31803 Flanges?
Duplex Steel S31803 Flanges exhibit high strength, excellent corrosion resistance in various environments (including chloride-containing and acidic environments), good weldability, and increased toughness. These properties make them suitable for demanding applications.
Can Duplex Steel S31803 Flanges be used in seawater applications?
Yes, Duplex Steel S31803 Flanges are highly suitable for seawater and marine applications due to their excellent resistance to pitting, crevice corrosion, and stress corrosion cracking. Their durability and corrosion resistance make them a preferred choice for offshore and coastal structures.
What are Duplex Steel S31803 Flanges used for?
Duplex Steel S31803 Flanges are widely used in oil and gas, chemical, petrochemical, and marine industries. They are specifically chosen for applications that require excellent resistance to corrosion, stress corrosion cracking, and high-pressure and high-temperature environments.
Specification of DSS S31803 Flanges
| Standards | ASTM A182 / ASME SA182 |
| Dimensions | ANSI/ASME B16.5, B16.47 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
| STANDARD | WERKSTOFF NR. | UNS |
| Duplex S31803 | 1.4462 | S31803 |
Manufacturing Standards of ASTM A182 Duplex Steel S31803 Flanges
| ASME/ANSI B16.5 | Blind Flange, High Hub Blind Flange, Slip on Flange, Welding Neck Flange, Socket Weld Flange, Ring Type Joint Flange, Lap Joint Flange, Threaded Flange |
| PRESSURE CLASS | 150, 300, 400, 600, 900, 1500, 2500 |
| ASME/ANSI B16.47 | Blind Flange [Series A & B],Welding Neck Flange |
| PRESSURE CLASS | 75, 150, 300, 400, 600, 900 |
| ASME/ANSI B16.36 | Orifice Flange |
| PRESSURE CLASS | 300, 400, 600, 900, 1500, 2500 |
| BS 4504 SEC 3.1 | Plate Flange, Loose Plate Flange, Loose Plate With Weld Neck Flange, Blank Flange, Welding Neck Flange, Hubbed Slip on Flange, Hubbed Threaded Flange, Lapped Pipe End Flange, |
| PRESSURE CLASS | PN 2.5 TO PN 40 |
| BS 4504[PART 1] | Plate Flange, Loose Plate With Weld On Plate Collar, Blank Flange, Welding Neck Flange, Hubbed Slip-On Hubbed Threaded, |
| PRESSURE CLASS | PN 2.5 TO PN 400 |
| BS 1560 BOSS | Plate Flange, Loose Plate With Weld On Plate Collar, Blank Flange, Welding Neck Flange, Hubbed Slip-On Hubbed Threaded, |
| PRESSURE CLASS | 150, 300, 400, 600, 900, 1500, 2500 |
| BS10 | Welding Neck Flange, Plate Slip-On Flange, Screwed Boss Flange, Slip-On Boss Flange, Blind Flange |
| TABLE | D, E, F, H |
| DIN FLANGES | DIN 2527, 2566, 2573, 2576, 2641,2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637,2638, 2673 |
| PRESSURE CLASS | PN 6 TO PN 100 |
Different Types
Duplex Steel S31803 Slip On Flanges
Duplex Steel S31803 Blind Flanges
Duplex Steel S31803 Socket Weld Flanges
Duplex Steel S31803 Weld Neck Flanges
Duplex Steel S31803 Reducing Flanges
Duplex Steel S31803 Orifice Flanges
Contact us to get a quick quote for your requirement.
We offer These Duplex Steel S31803 Flanges as per DIN, ASTM, ASME, BS, EN, JIS or ANSI Standard.
Available Stock
- DSS Gr S31803 Flanges
- Duplex Stainless Steel S31803 RTJ Flanges
- Duplex Steel S31803 Flanges
- Grade S31803 Duplex Steel Flanges
- ASME B16.47 Duplex S31803 Spades Ring Spacers Flanges
- Duplex Steel S31803 Plate Flange
- ASTM A182 S31803 Duplex Steel Flanges
- Duplex Steel S31803 Tongue Flanges
- S31803 DSS Flanges
- UNS S31803 Male & Female Flanges
- Duplex Steel S31803 PN 10 Flange
- Duplex Steel 1.4462 RTJ Flanges
- Type S31803 DSS Industrial Forged Flanges
- DSS S31803 Groove Flanges
- ANSI B16.5 Duplex Steel S31803 Expander Flanges
- S31803 Duplex Stainless Steel Pipe Flange
- Duplex S31803 NPT / BSP Thread Flanges
- DSS S31803 Flanges
- S31803 Duplex Steel Nipoflange
- UNS S31803 Duplex Steel Lap Joint Flanges
- S31803 Duplex Steel Screwed Flanges
- S31803 Duplex Steel Flanges
- Duplex Steel S31803 300 LBS Flanges
- Duplex Steel 1.4462 Flanges
- Duplex Steel S31803 Flanges
- S31803 Duplex Steel 150 LBS Threaded Flanges
- Duplex Steel S31803 Spades Ring Spacers Flanges
- Duplex Steel S31803 Nipo Flanges
- ANSI / ASME B16.5 DSS S31803 Forged Flanges
- DSS Grade S31803 ANSI Flanges
- DSS S31803 Flat Face Flanges
- Duplex Steel S31803 Long Welding Neck Flange
- DSS S31803 Spectacle Blind Flanges
- DSS S31803 Lapped Joint Flanges
- Duplex Stainless Steel S31803 Flanges
- S31803 Duplex Steel Flanges
- Duplex Steel S31803 DIN Flanges
- DSS 1.4462 1500 LBS Flanges
- DSS S31803 Flanges
- Duplex Steel S31803 British Standard Table D Pipe Flanges
- Duplex Steel S31803 Screwed Flanges
- S31803 Duplex Stainless Steel Weldo Flanges
- Duplex S31803 High Hub Blind Flanges
- Duplex Steel S31803 BS Standard Table E
- Duplex Steel S31803 ASME Flanges
Weight Chart
15mm (1/2″) Duplex Steel S31803 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 | 304.80 | 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 |
Dimensions
| AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME) |
|
|---|
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 |
Chemical Structure
| 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 |
Mechanical Properties
| Grades | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
| S31803 | 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 |
We Serve Application Industry
Application Industry
ANSI / ASME 16.5, 16.48, 16.47 Flanges applications are as diverse as the industries they serve driven primarily by the aerospace, railway, construction and automotive industries with petrochemical, nuclear, medical, Oil & Gas, Chemical, Pharmaceutical, Food & Beverage, Nuclear, Thermal Power plants, Paper and Pulp, marine and mining, etc.
Oil & Gas Industry
Petrochemical Industry
Power Generation Industry
Chemical Industry
Materials
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Global Steel is a significant manufacturer and exporter of all ferrous and non-ferrous metals. As a pioneer and leader in the industry, Global Steel is at the forefront of technology and research.
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