Leading duplex steel flange manufacturer in India offering high-strength forged flanges for corrosive service.
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Suntech Forge India is a leading Duplex Steel Flange Manufacturer in India, supplying high-strength forged flanges with excellent corrosion resistance and durability for demanding industrial applications.
- Size
1/2 in to 60 in
- Class
150 to 2500 LBS
- Face Type
FF, RF, RTJ
- Pressure
PN6 to PN64
- Standards
ANSI B16.5, B16.47, MSS SP44
- Method
Free / Die Forging
Duplex steel flanges are widely used in offshore, marine, and chemical industries due to their superior strength, resistance to stress corrosion cracking, and long service life.
| NPS | OD (mm) | Bolts | BCD (mm) | Thickness (mm) |
|---|---|---|---|---|
| 1/2 | 89 | 4 | 60.3 | 11.2 |
| 1 | 108 | 4 | 79.4 | 14.2 |
| 2 | 152 | 4 | 120.7 | 17.5 |
| 4 | 229 | 8 | 190.5 | 23.9 |
| 6 | 279 | 8 | 241.3 | 25.4 |
| 10 | 406 | 12 | 362.0 | 30.2 |
| 12 | 483 | 12 | 432.0 | 31.8 |
| NPS | Gasket ID | OD (150#) | OD (300#) |
|---|---|---|---|
| 1 | 1.031 | 2.0625 | 2.0875 |
| 2 | 2.038 | 4.0125 | 4.0375 |
| 4 | 4.050 | 6.0875 | 7.0125 |
| 6 | 6.062 | 8.075 | 9.0875 |
| 10 | 10.075 | 13.0375 | 14.025 |
| NPS | Weld Neck (kg) | Blind (kg) | Slip-On (kg) |
|---|---|---|---|
| 1 | 2.2 | 1.6 | 1.2 |
| 2 | 5.6 | 4.8 | 3.6 |
| 4 | 15.6 | 12.2 | 9.2 |
| 6 | 26.8 | 21.6 | 16.8 |
| 10 | 71.0 | 56.8 | 40.2 |
| Standard | Grade |
|---|---|
| ASTM A182 | UNS S31803 / S32205 |
| ISO 15510 | X2CrNiMoN22-5-3 |
| EN 10088 | 1.4462 |
| GB/T | S22293 |
| Property | Duplex | Super Duplex |
|---|---|---|
| Corrosion Resistance | Good | Superior |
| Strength | High | Higher |
| Cost | Moderate | Higher |
| Application | General Industry | Harsh Environment |
For latest price and quotation:
sales@suntechforge.com
| Export to | Shipping Time |
|---|---|
| Japan | 7 Days |
| Sri Lanka | 5 Days |
| Bangladesh | 14 Days |
| Taiwan | 15 Days |
| Brazil | 45-60 Days |
| Chile | 45 Days |