Sachiya Steel International is the manufacturer, exporter, and supplier of the Duplex Stainless Steel S31803 Pipes made with high-quality raw material. We offered this pipe in customized lengths, shapes, and sizes designed as per national and international standards to our esteemed clients. They have high demand as compared to another grade of 316 stainless steel because these pipes are resistant to general and local corrosion like oxidation and intergranular resistance, stress cracking corrosion, crevice, and pitting.
Duplex Stainless Steel S31803 Pipes
The alloy becomes brittle when heat-treated to a temperature beyond 300 degrees Celsius. Duplex Stainless Steel S31803 Pipes has a mixture of properties like high strength and weldability. This grade is not completely ferritin and not completely austenitic. Also to these Duplex steel pipes low-temperature application does not cause much harm. The workhorse garden is the other name for this grade pipe. To give amazing outcomes the main benefit of this steel type is that it combines austenitic steel and ferritic steel properties. The Duplex Stainless Steel S31803 Pipes types are welded EFW and Fabricated. In a variety of environments, the steel combines good mechanical strength and ductility with moderate to good corrosion resistance. It is a two-phase material. It is featured by the high yield strength and most widely used nitrogen enhanced duplex stainless steel grade.
- Specifications : ASTM /ASME SA790/A790
- Dimensions : ASTM, ASME and API
- Schedule : SCH 10, SCH20, SCH30, SCH40, STD, SCH60, XS, SCH80, SCH120, SCH140, SCH160, XXS
- Wall Thickness : Schedule 5S – Schedule XXS.
- Size : 1/2″ NB – 24″ NB
- Length : Single Random, Double Random & Cut Length.
- Form : Round, Square, Rectangular, Hydraulic etc
- End : Plain End, Beveled End, Treaded
STANDARD | WERKSTOFF NR. | UNS |
Duplex S31803 | 1.4462 | S31803 |
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 |
Grades | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
S31803 | 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 |
NB SIZES | SCH 5 | SCH 10 | SCH 40 | SCH 80 | SCH 160 |
1/8″
|
Yes
|
Yes
|
Yes
|
Yes
|
|
1/4″
|
Yes
|
Yes
|
Yes
|
Yes
|
|
3/8″
|
Yes
|
Yes
|
Yes
|
Yes
|
|
1/2″
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
3/4″
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
1″
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
1 1/4″
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
1 1/2″
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
2″
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
2 1/2″
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
3″
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
4″
|
Yes
|
Yes
|
Yes
|
Yes
|
Yes
|
5″
|
Yes
|
Yes
|
Yes
|
Yes
|
|
6″
|
Yes
|
Yes
|
Yes
|
Yes
|
Pressure Rating (psig) | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Pipe Size (inches) |
Pipe Schedule | Temperature (oF) | ||||||||
100 | 200 | 300 | 400 | 500 | 600 | 650 | 700 | 750 | ||
1″ | 40 | 3168 | 2629 | 2362 | 2171 | 2019 | 1924 | 1867 | 1824 | 1810 |
80 | 4213 | 3634 | 3265 | 3002 | 2791 | 2659 | 2580 | 2528 | 2501 | |
160 | 6140 | 5296 | 4759 | 4375 | 4068 | 3876 | 3761 | 3684 | 3646 | |
1 1/2″ | 40 | 2257 | 1947 | 1750 | 1608 | 1496 | 1425 | 1383 | 1354 | 1340 |
80 | 3182 | 2744 | 2466 | 2267 | 2108 | 2009 | 1949 | 1909 | 1889 | |
160 | 4619 | 3984 | 3580 | 3291 | 3060 | 2916 | 2829 | 2772 | 2743 | |
2″ | 40 | 1902 | 1640 | 1474 | 1355 | 1260 | 1201 | 1165 | 1141 | 1129 |
80 | 2747 | 2369 | 2129 | 1957 | 1820 | 1734 | 1682 | 1648 | 1631 | |
160 | 4499 | 3880 | 3486 | 3205 | 2980 | 2840 | 2755 | 2699 | 2671 | |
3″ | 40 | 1806 | 1558 | 1400 | 1287 | 1196 | 1140 | 1106 | 1084 | 1072 |
80 | 2553 | 2202 | 1979 | 1819 | 1691 | 1612 | 1564 | 1532 | 1516 | |
160 | 3840 | 3312 | 2976 | 2736 | 2544 | 2424 | 2352 | 2316 | 2280 | |
4″ | 40 | 1531 | 1321 | 1187 | 1091 | 1014 | 967 | 938 | 919 | 909 |
80 | 2213 | 1909 | 1715 | 1577 | 1466 | 1397 | 1355 | 1328 | 1314 | |
160 | 3601 | 3106 | 2791 | 2566 | 2386 | 2273 | 2206 | 2161 | 2138 | |
5″ | 40 | 1342 | 1158 | 1040 | 956 | 889 | 847 | 822 | 805 | 797 |
80 | 1981 | 1709 | 1535 | 1411 | 1312 | 1250 | 1213 | 1189 | 1176 | |
160 | 3414 | 2945 | 2646 | 2433 | 2262 | 2155 | 2091 | 2049 | 2027 | |
6″ | 40 | 1219 | 1052 | 945 | 869 | 808 | 770 | 747 | 732 | 724 |
80 | 1913 | 1650 | 1483 | 1363 | 1267 | 1208 | 1172 | 1148 | 1136 | |
160 | 3289 | 2836 | 2549 | 2343 | 2179 | 2076 | 2014 | 1973 | 1953 | |
8″ | 40 | 1073 | 926 | 832 | 765 | 711 | 678 | 657 | 644 | 637 |
80 | 1692 | 1459 | 1311 | 1205 | 1121 | 1068 | 1036 | 1015 | 1005 | |
160 | 3175 | 2738 | 2460 | 2262 | 2103 | 2004 | 1944 | 1905 | 1885 | |
10″ | 40 | 974 | 840 | 755 | 694 | 645 | 615 | 596 | 584 | 578 |
80 | 1609 | 1388 | 1247 | 1147 | 1066 | 1016 | 986 | 966 | 956 | |
160 | 3147 | 2714 | 2439 | 2242 | 2085 | 1986 | 1927 | 1880 | 1868 |