Table Of Content
KIRAN PIPE FITTING & MANUFACTURING COMPANY. is a leading manufacturer and supplier of Duplex Steel Flanges. We are using different metals and alloys to fabricate Flanges. In Duplex Steel, we are using UNS 31803 and UNS 32205 alloys. Duplex 31803 is the most commonly used duplex grade which contains 4% of molybdenum, 25% of chromium, and 7% of a nickel alloy. It has high mechanical strength and provides excellent resistance to stress corrosion cracking, chloride pitting corrosion attack, and crevice corrosion. Duplex 32205 contains chromium of 22%, molybdenum of 3%, and nickel 5-6%. It is two phases of corroded metal which is suitable in an application that needs excellent corrosion resistance and strength.
Duplex 32205 and 31803 are Ferritic-Austenitic Steel grades which are suitable in numerous applications and operations where superior resistance to corrosion requires. We are offering the highest quality Duplex S31803/S32205 Flanges in the global market. We are producing these Flanges in multiple specializations such as class, size range, standard, surface finish, length, wall thickness, and surface finishing. We are also providing custom made Flanges, as per the requirements given by clients.
We, KIRAN PIPE FITTING & MANUFACTURING COMPANY., are strictly following all criteria and defined quality standards. We are supplying our high-grade Duplex S31803/S32205 Flanges to numerous industries to complete application like petrochemicals, power generation, gas processing, chemical equipment, pharmaceutical, and seawater equipment. Our Duplex S31803/S32205 Flanges are the highest preferred product in the market. Because of the features and quality of Flanges, they are on-demand and required by our clients.
Our Duplex S31803/S32205 Flanges has characteristics like good strength, high weldability, workability, quality assurance, resistance to chloride stress corrosion cracking, general corrosion, chloride pitting and crevice corrosion, and many more. We aim to satisfy our customer’s needs and expectations. We are focusing on to deliver a perfectly matching solution to our clients within the decided time.
Specification : ASTM A182 / ASME SA182
Dimension Standard : 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)
DIN Flanges : DIN 2527, 2566, 2573, 2576, 2641,2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637,2638, 2673.
JIS Flanges : JIS B2220 5K, JIS B2220 10K, JIS B2220 16K, JIS B2220 20K
BS Flanges : BS4504 PN 6, BS 4504 PN 10, BS4504 PN 16, BS4504 PN 25, BS4504 PN 40, BS 4504 PN 64, BS 4504 PN 100, BS 4504 PN 160, BS 4504 PN 250, BS 10, BS Table D, BS Table E, BS Table F, BS Table H.
| STANDARD | WERKSTOFF NR. |
| S31803/S32205 | 1.4462 |
We are not only focusing on maintaining quality and deadlines, but we are also taking care of a smooth and convenient doorstep service. For this, we ensure proper packing and shipping of Duplex S31803/S32205 Flanges. We are fulfilling the needs of our clients by providing top quality Flanges at reasonable rates.
SAF 2205 SORF Flanges
ASTM A182 Duplex S31803 Slip On Flanges
UNS S32205 Slip on Flange
SS 1.4462 Slip On Flange
Duplex Steel S32205 Slip On Flange
Duplex S31803 Weld Neck Flanges
ASTM A182 Duplex Stainless Steel S32205 Weld Neck Flanges
Duplex S31803/S32205 WNRF Flanges
UNS S31803 Weld Neck Flanges
Duplex 1.4462 Weld Neck Flanges
Duplex Steel S32205 Blind Flange
ASTM A182 Duplex S31803 Blind Flanges
UNS S32205 Blind Flange
Duplex Stainless Steel S32205 Blind Flanges
Duplex 1.4462 BLRF Flanges
Duplex Steel S31803 Threaded Flanges
ASTM A182 Duplex S32205 Threaded Flanges
UNS S31803 Threaded Flanges
Duplex S31803/S32205 Threaded Flanges
Duplex 1.4462 Threaded Flanges
Duplex Steel S31803 Socket weld Flange
ASTM A182 Duplex S32205 SWRF Flanges
UNS S32205 Socket weld Flange
Duplex Steel SAF 2205 Socket weld Flange
Duplex 1.4462 Socket weld Flange
Duplex Steel S32205 Lap Joint Flanges
ASTM A182 Duplex Steel S31803 Lap Joint Flanges
UNS S31803 Lap Joint Flanges
Duplex S31803/S32205 Lap Joint Flanges
Duplex 1.4462 Lap Joint Flanges
Duplex Steel S32205 Ring Type Joint Flange
ASTM A182 Duplex S32205 Ring Type Joint Flange
UNS S32205 Ring Type Joint Flange
Duplex S31803 RTJ Flanges
Duplex 1.4462 Ring Type Joint Flange
Duplex Steel S31803 Orifice Flanges
ASTM A182 SAF 2205 Orifice Flanges
UNS S31803 Orifice Flanges
Duplex Steel S31803 Orifice Flanges
Duplex 1.4462 Orifice Flange
Duplex Steel S31803 Long Weld Neck Flanges
ASTM A182 Duplex S32205 Long Weld Neck Flanges
UNS S32205 Long Weld Neck Flanges
Duplex S31803 Long Weld Neck Flanges
Duplex 1.4462 Long Weld Neck Flanges
Duplex Steel S31803 Spectacle Blind Flanges
ASTM A182 Duplex S32205 Spectacle Blind Flange
UNS S31803 Spectacle Blind Flange
Duplex SAF 2205 Spectacle Blind Flange
Duplex 1.4462 Spectacle Blind Flange
Duplex Steel S31803 Forged Flanges
ASTM A182 Duplex S31803 Forged Flanges
UNS S32205 Forged Flanges
Duplex Steel S31803 Forged Flanges
Duplex 1.4462 Forged Flanges
Duplex Steel S31803 / S32205 Plate Flanges
ASTM A182 Duplex Stainless Steel S32205 Plate Flange
UNS S31803 Plate Flanges
Duplex Steel S31803 Plate Flange
Duplex 1.4462 Plate Flanges
All Flanges is manufactured and tested / inspected to the relevant standards including ASTM, ASME and API etc.
| Standard | Class | Diameter | Bolt Circle Diameter | Number of Bolts | Bolt Size | Diameter of Bolt Hole |
|---|---|---|---|---|---|---|
| AS4087 Flanges | PN14 Flanges | 95 | 67 | 4 | M12 | 14 |
| AS 2129 Flange | Table C Flanges | 95 | 67 | 4 | 13 | 14 |
| Table D Flanges | 95 | 67 | 4 | 13 | 14 | |
| Table E Flanges | 95 | 67 | 4 | 13 | 14 | |
| Table F Flanges | 95 | 67 | 4 | 13 | 14 | |
| Table H Flanges | 114 | 83 | 4 | 16 | 17 | |
| Table J Flanges | 114 | 83 | 4 | 16 | 17 | |
| ANSI B16.5 Flanges | ANSI 150 Flanges | 89 | 60 | 4 | 13 | 16 |
| ANSI 300 Flanges | 95 | 67 | 4 | 13 | 16 | |
| ANSI 600 Flanges | 95 | 67 | 4 | 13 | 16 | |
| ANSI 900 Flanges | 121 | 83 | 4 | 19 | 22 | |
| ANSI 1500 Flanges | 121 | 83 | 4 | 19 | 22 | |
| ISO 7005 (DIN) Flange | PN6 Flanges | 80 | 55 | 4 | M10 | 11 |
| PN10 Flanges | 95 | 65 | 4 | M12 | 14 | |
| PN16 Flanges | 95 | 65 | 4 | M12 | 14 | |
| PN20 Flanges | 90 | 60.5 | 4 | M14 | 16 | |
| PN25 Flanges | 95 | 65 | 4 | M12 | 14 | |
| PN40 Flanges | 95 | 65 | 4 | M12 | 14 |
| 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 |
| 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 |
| Grades | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
| S31803 | 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 |
| S32205 | 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 |
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