ASTM A312 TP304 304L Seamless And Welded Pipe High Temperature
Stainless Steel 304 Pipe is made either seamless or welded. The pipes could be drawn from a single billet as seamless or be welded from a strip or plate. There are different welding methods such as electric resistance welding for smaller pipes and electric fusion welding for pipes with large diameters. YUHONG is a manufacturer of all sizes of 304 pipes.
The Stainless Steel 304 Seamless Pipe is used for more accurate dimensions with applications that require accurate dimensions whereas the SS 304 Welded Pipe is used for mechanical applications rather than technical applications.
Mechanical Properties
Density | 8.0 g/cm3 |
Melting Point | 1400 °C (2550 °F) |
Tensile Strength | Psi – 75000 , MPa – 515 |
Yield Strength (0.2%Offset) | Psi – 30000 , MPa – 205 |
Elongation | 35 % |
Equivalent Material Grade Specifications
GRADE | UNS NO | OLD BRITISH | EURONORM | SWEDISH SS | JAPANESE JIS | ||
---|---|---|---|---|---|---|---|
BS | EN | NO | NAME | ||||
304 | S30400 | 304S31 | 58E | 1.4301 | X5CrNi18-10 | 2332 | SUS 304 |
Chemical Composition Of SS 304 Seamless Pipe
SS | 304 | 304N | 304LN |
---|---|---|---|
Ni | 8 – 11 | 8 – 11 | 8 – 11 |
Fe | Balance | ||
Cr | 18 – 20 | 18 – 20 | 18 – 20 |
C | 0.08 max | 0.08 max | 0.035 max |
Si | 0.75 max | 0.75 max | 0.75 max |
Mn | 2 max | 2 max | 2 max |
P | 0.040 max | 0.040 max | 0.040 max |
S | 0.030 max | 0.030 max | 0.030 max |
N |
| 0.10 – 0.16 | 0.10 – 0.16 |
Stainless Steel TP304 Pressure Rating
SS 304 Pipes Pressure Rating (psig) | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Size (inches) | SCH | Temperature (°F) | ||||||||
100 | 200 | 300 | 400 | 500 | 600 | 650 | 700 | 750 | ||
1'' | 40 | 3048 | 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 | 2304 | 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 | 186 |
Applications
· Food processing equipment, particularly in beer brewing, milk processing & wine making.
· Kitchen benches, sinks, troughs, equipment and appliances
· Architectural panelling, railings & trim
· Chemical containers, including for transport
· Heat exchangers
· Woven or welded screens for mining, quarrying & water filtration
· Threaded fasteners
· Springs