Vessco Overseas is a producer of Duplex Steel UNS S31803 Flanges. We create flanges that have compliance to ASTM standards and are quality approved by our in-house quality tests. Duplex Steel S31803 Weld Neck Flanges by us have great chloride push erosion breaking opposition, their duplex steel bodies favoring them the capacity to work in territories containing abnormal amounts of chloride mixes notwithstanding high-stretch applications.
We are distributors and dealers of Duplex Steel S31803 Blind Flanges that are without a drag, utilized as water-confirmation seals to pipe closes, with their protection from general erosion making them multi-helpful in the concoction passing on pipelines. The addition of molybdenum and slightly higher nickel content make Duplex WERKSTOFF NR. 1.4462 Orifice Flanges suitable for architectural applications in severe settings, from polluted marine environments to areas with sub-zero temperatures. Our Duplex Steel S31803 Socket weld Flanges give an elective choice contradicted to costly high Nickel spines; they are flexible and weldable other than they expand a safe operational field.
Specifications |
||
| Standard | : | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc. |
| Grade | : | ASTM A182 / ASME SA182 F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61, UNS S31803. |
| Size |
: | ½" to 24" |
| Class | : | 150#, 300#, 600#, 900#, 1500#, 2500#. |
| Wall Thickness | : | SCH.10, 20, 30, 40, 80, 120, 160, STD, XS, XXS. |
| STANDARD | WERKSTOFF NR. | UNS |
| Duplex S31803 | 1.4462 | S31803 / S32205 |
Ni |
Cr |
Mo |
Mn |
Si |
C |
N |
S |
P |
Fe |
|
MIN |
4.5 |
22.0 |
3.0 |
- |
- |
- |
0.14 |
- |
- |
- |
MAX |
6.5 |
23.0 |
3.5 |
2.0 |
1.0 |
0.03 |
0.2 |
0.02 |
0.03 |
Balance |
| Grades | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
| S31803 / S32205 | 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 |
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