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Best Supplier of ASTM A312 TP304H Stainless Steel Pipe in Mumbai, India
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Stainless Steel 304H pipes are high-carbon austenitic stainless steel pipes designed for elevated temperature service. These pipes have excellent strength, good weldability, and improved heat resistance. Made with chromium, nickel, carbon, manganese, silicon, phosphorus, sulfur and nitrogen, they offer strong mechanical performance. 304H pipes have a minimum tensile strength of 515 MPa and a yield strength of 205 MPa, with a 40% elongation. The hardness stays within Rockwell B 92 and Brinell 201, making them tough and reliable. Preston Pipes & Alloys, the leading supplier of stainless steel 304H pipes, ensures that each tube satisfies national and international requirements for demanding applications.
304H stainless steel pipe is available in different types, such as seamless, welded, ERW, LSAW, and fabricated. Sizes range from 1/8″ NB to 30″NB with a facility to custom make them. Length includes single random, double random, and cut lengths. Shapes offered are round, square, rectangular, and hydraulic. Pipe ends are supplied as plain, threaded, or beveled. These pipes have various schedules like SCH20, SCH30 and SCH40. Each 304H stainless steel pipe from a reputed seller has dimensional accuracy and a smooth surface finish, which makes them perform in various pressure, and temperature conditions.
304H Stainless Steel Pipe offers enhanced heat resistance, excellent resistance to corrosion and high strength. These properties make this material very reliable, and it is used in various industries. Common usage includes industries dealing with the refining process, chemicals, oil and gas, pharmaceuticals and food processing. It also operates well in power plants, pulp and paper units, aerospace, petrochemical, and energy systems. AISI 304H rectangular pipe is often used where high-temperature stability, and durability are key. The tube's resistance to scaling and stress rupture strengthens its role in critical thermal operations.
Each 304H stainless steel pipe goes through strict quality checks, including hardness tests, flattening tests, flaring tests, and intergranular corrosion tests. Dimensional checks and PMI testing are also done to confirm material identity. Pipes are packed using seaworthy wooden boxes, plastic caps, or wrapped in waterproof material to prevent damage during transit. Every shipment meets international packaging standards for safety and traceability. Reach out today to access high-quality 304H stainless steel pipe from a trusted stockist.
Top exporter of Stainless Steel 304H Pipes, Ready stock available for Stainless Steel DIN 1.4301 Seamless Pipes
| Specifications | ASTM/ASME SA312/A312 | |
| Dimensions | ASTM, ASME and API | |
| Schedule |
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|
| Wall Thickness | Schedule 5S - Schedule XXS | |
| Size | 1/2" NB - 24" NB | |
| Length | Single Random, Double Random & Cut Length. | |
| Form | Round, Square, Rectangular etc | |
| End | Plain End, Beveled End, Treaded |
UNS S30409 Round Pipe Dimensions
| NPS (DN) | Weight (KG/M) | SCH | OD (mm) | ID | WT (mm) |
| 32 | 126.032 | .0.0.0 | 813 | .0.0.0 | 6.035 |
| 34 | 134.031 | .0.0.0 | 864 | .0.0.0 | 6.035 |
| 36 | 142.014 | .0.0.0 | 914 | .0.0.0 | 6.035 |
| 38 | 186.094 | .0.0.0 | 965 | .0.0.0 | 7.092 |
Verified stockist and distributor of AISI 304H Rectangular Pipe, SS 304H Pipe Manufacturer
304H SS Seamless Pipe Schedule Chart
| Size | OD | SCH | |||||||||||||||||
| DN | NPS | mm | Sch XXS | Sch 160 | Sch 140 | Sch 120 | Sch 100 | Sch 80 | Sch XS | Sch 80s | Sch 60 | Sch 40 | Sch STD | Sch 40s | Sch 30 | Sch 20 | Sch 10 | Sch l0s | Sch 5s |
| 25 | 1 | 33.4 | 9.09 | 6.35 | – | – | – | 4.55 | 4.55 | 4.55 | – | 3.38 | 3.38 | 3.38 | – | – | – | 2.77 | 1.65 |
| 6 | 1/8 | 10.3 | – | – | – | – | – | 2.41 | 2.41 | 2.41 | – | 1.73 | 1.73 | 1.73 | – | – | – | 1.24 | – |
| 50 | 2 | 60.3 | 11.07 | 8.74 | – | – | – | 5.54 | 5.54 | 5.54 | – | 3.91 | 3.91 | 3.91 | – | – | – | 2.77 | 1.65 |
| 8 | 1/4 | 13.7 | – | – | – | – | – | 3.02 | 3.02 | 3.02 | – | 2.24 | 2.24 | 2.24 | – | – | – | 1.65 | – |
| 80 | 3 | 88.9 | 15.24 | 11.13 | – | – | – | 7.62 | 7.62 | 7.62 | – | 5.49 | 5.49 | 5.49 | – | – | – | 3.05 | 2.11 |
| 10 | 3/8 | 17.1 | – | – | – | – | – | 3.20 | 3.20 | 3.20 | – | 2.31 | 2,31 | 2.31 | – | – | – | 1.65 | – |
| 100 | 4 | 114.3 | 17.12 | 13.49 | – | 11.13 | – | 8.56 | 8.56 | 8.56 | – | 6.02 | 6.02 | 6.02 | – | – | – | 3.05 | 2.11 |
| 15 | 1/2 | 21.3 | 7.47 | 4.78 | – | – | – | 3.73 | 3.73 | 3.73 | – | 2.77 | 2.77 | 2.77 | – | – | – | 2.11 | 1.65 |
| 125 | 5 | 141.3 | 19.05 | 15.88 | – | 12.70 | – | 9.53 | 9,53 | 9.53 | – | 6.55 | 6.55 | 6.55 | – | – | – | 3.40 | 2.77 |
| 20 | 3/4 | 26.7 | 7.82 | 5.56 | – | – | – | 3.91 | 3.91 | 3.91 | – | 2.87 | 2.87 | 2.87 | – | – | – | 2.11 | 1.65 |
| 150 | 6 | 168.3 | 21.95 | 18.26 | – | 14.27 | – | 10.97 | 10.97 | 10.97 | – | 7.11 | 7.11 | 7.11 | – | – | – | 3.40 | 2.77 |
| 32 | 1 1/4 | 42.2 | 9.70 | 6.35 | – | – | – | 4.85 | 4.85 | 4.85 | – | 3,56 | 3.56 | 3.56 | – | – | – | 2.77 | 1.65 |
| 200 | 8 | 219.1 | 22.23 | 23.01 | 20.62 | 18.26 | 15.09 | 12.70 | 12.70 | 12.70 | 10.31 | 8.18 | 8.18 | 8.18 | 7.04 | 6.35 | – | 3.76 | 2.77 |
| 40 | 1 1/2 | 48.3 | 10.15 | 7.14 | – | – | – | 5.08 | 5.08 | 5.08 | – | 3.68 | 3.68 | 3.68 | – | – | – | 2.77 | 1.65 |
| 250 | 10 | 273.1 | 25.40 | 28.58 | 25.40 | 21.44 | 18.26 | 15.09 | 12.70 | 12.70 | 12.70 | 9.27 | 9.27 | 9.27 | 7.80 | 6.35 | – | 4.19 | 3.40 |
| 65 | 2 1/2 | 73 | 14.02 | 9.53 | – | – | – | 7.01 | 7.01 | 7.01 | – | 5.16 | 5.16 | 5.16 | – | – | – | 3.05 | 2.11 |
| 300 | 12 | 323.9 | 25.40 | 33.32 | 28.58 | 25.40 | 21.44 | 17.48 | 12.70 | 12.70 | 14.27 | 10.31 | 9.53 | 9.53 | 8.38 | 6.35 | – | 4.57 | 3.96 |
| 90 | 3 1/2 | 101.6 | – | – | – | – | – | 8.08 | 8.08 | 8.08 | – | 5.74 | 5.74 | 5.74 | – | – | – | 3.05 | 2.11 |
| 350 | 14 | 355.6 | – | 35.71 | 31.75 | 27.79 | 23.83 | 19.05 | 12.70 | – | 15.09 | 11.13 | 9.53 | – | 9.53 | 7.92 | 6.35 | 4.78 | 3.96 |
| 400 | 16 | 406.4 | – | 40.49 | 36.53 | 30.96 | 26.19 | 21.44 | 12.70 | – | i6.66 | 12.70 | 9.53 | – | 9.53 | 7.92 | 6.35 | 4.78 | 4.19 |
| 450 | 18 | 457.2 | – | 45.24 | 39,67 | 34.93 | 29.36 | 23.83 | 12.70 | – | 19.05 | 14.27 | 9.53 | – | 11.13 | 7.92 | 6.35 | 4.78 | 4.19 |
| 500 | 20 | 508 | – | 50.01 | 44.45 | 38.10 | 32.54 | 26.19 | 12.70 | – | 20.62 | 15.09 | 9.53 | – | 12.70 | 9.53 | 6.35 | 5.54 | 4.78 |
| 600 | 24 | 610 | – | 59.54 | 52.37 | 46.02 | 38.89 | 30.96 | 12.70 | – | 24.61 | 17.48 | 9.53 | – | 14.27 | 9.53 | 6.35 | 6.35 | 5.54 |
| 700 | 28 | 711 | – | – | – | – | – | – | 12.70 | – | – | – | 9.53 | – | 15.88 | 12.70 | 7.92 | – | – |
| WT | Sizes |
| .375 | 3 1/2″ |
| .250 | 3″ |
| .134 | 1″ |
| .125 | 3/4″, 1 1/4″, 2″, 3″, 3 1/4″ |
| .120 | 1/2″, 5/8″, 7/8″, 1″, 1 1/4″, 1 1/2″, 2″, 2 1/4″, 2 1/2″, 3″ |
| .109 | 1/2″, 1″, 1 1/4″, 1 1/2″, 2″ |
| .095 | 1/2″, 5/8″, 1″, 1 1/2″, 2″ |
| .083 | 1/4″, 5/8″, 3/4″, 7/8″, 1″, 1 1/4″, 1 5/8″, 1 7/8″, 2 1/2″ ,3″ |
| .065 | 1/4″, 3/8″, 16″, 5/8″, 7/8″, 1″, 1 1/2″, 1 5/8″, 1 3/4″ |
| .049 | 3/16″, 5/16″, 5/8″, 3/4″, 1″, 1 1/8″, 1 5/8″, 2″, 2 1/4″ |
| .035 | 1/8″, 1/4″, 3/8″, 7/16″, 16″, 5/8″, 1 1/4″, 1 1/2″, 1 5/8″, 2″ |
| .028 | 3/16″, 1/4″, 5/16″, 3/8″, 1/2″, 3/4″, 1″, 1 1/2″, 2″ |
| .016 | 1/8″, 3/16″ |
| .012 | 1/8″ |
| .020 | 1/16″, 1/8″, 1/4″, 5/16″, 3/8″ |
| .010 | 1/16″, 1/8″, 3/16″ |
| Pressure Rating | ||||||||||
| Size (in.) | SCH | Temperature (°F) | ||||||||
| 750 | 700 | 650 | 600 | 500 | 400 | 300 | 200 | 100 | ||
| 10″ | 40 | 578 | 584 | 596 | 615 | 645 | 694 | 755 | 840 | 974 |
| 80 | 956 | 966 | 986 | 1016 | 1066 | 1147 | 1247 | 1388 | 1609 | |
| 160 | 1868 | 1880 | 1927 | 1986 | 2085 | 2242 | 2439 | 2714 | 3147 | |
| 8″ | 40 | 637 | 644 | 657 | 678 | 711 | 765 | 832 | 926 | 1073 |
| 80 | 1005 | 1015 | 1036 | 1068 | 1121 | 1205 | 1311 | 1459 | 1692 | |
| 160 | 1885 | 1905 | 1944 | 2004 | 2103 | 2262 | 2460 | 2738 | 3175 | |
| 6″ | 40 | 724 | 732 | 747 | 770 | 808 | 869 | 945 | 1052 | 1219 |
| 80 | 1136 | 1148 | 1172 | 1208 | 1267 | 1363 | 1483 | 1650 | 1913 | |
| 160 | 1953 | 1973 | 2014 | 2076 | 2179 | 2343 | 2549 | 2836 | 3289 | |
| 5″ | 40 | 797 | 805 | 822 | 847 | 889 | 956 | 1040 | 1158 | 1342 |
| 80 | 1176 | 1189 | 1213 | 1250 | 1312 | 1411 | 1535 | 1709 | 1981 | |
| 160 | 2027 | 2049 | 2091 | 2155 | 2262 | 2433 | 2646 | 2945 | 3414 | |
| 4″ | 40 | 909 | 919 | 938 | 967 | 1014 | 1091 | 1187 | 1321 | 1531 |
| 80 | 1314 | 1328 | 1355 | 1397 | 1466 | 1577 | 1715 | 1909 | 2213 | |
| 160 | 2138 | 2161 | 2206 | 2273 | 2386 | 2566 | 2791 | 3106 | 3601 | |
| 3″ | 40 | 1072 | 1084 | 1106 | 1140 | 1196 | 1287 | 1400 | 1558 | 1806 |
| 80 | 1516 | 1532 | 1564 | 1612 | 1691 | 1819 | 1979 | 2202 | 2553 | |
| 160 | 2280 | 2304 | 2352 | 2424 | 2544 | 2736 | 2976 | 3312 | 3840 | |
| 2″ | 40 | 1129 | 1141 | 1165 | 1201 | 1260 | 1355 | 1474 | 1640 | 1902 |
| 80 | 1631 | 1648 | 1682 | 1734 | 1820 | 1957 | 2129 | 2369 | 2747 | |
| 160 | 2671 | 2699 | 2755 | 2840 | 2980 | 3205 | 3486 | 3880 | 4499 | |
| 1 1/2″ | 40 | 1340 | 1354 | 1383 | 1425 | 1496 | 1608 | 1750 | 1947 | 2257 |
| 80 | 1889 | 1909 | 1949 | 2009 | 2108 | 2267 | 2466 | 2744 | 3182 | |
| 160 | 2743 | 2772 | 2829 | 2916 | 3060 | 3291 | 3580 | 3984 | 4619 | |
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| ASTM A312 | Si | C | Mn | P | S | Cr | Mo | Ni | N | |
| 304H | min. | - | - | - | - | - | 18.0 | - | 8.0 | - |
| max. | 0.75 | 0.10 | 2.0 | 0.045 | 0.03 | 20.0 | 10.5 | - | ||
| Yield Strength (MPa) | Elongation (%) | Tensile Strength (MPa) | Hardness | |
| HR B | HB | |||
| 205 min | 40 min | 515 min | 92 max | 201 max |
| GRADE | SS | UNS | BS | Werkstoff NR. | EN | JIS |
| ASTM A312 304H | 2332 | S30409 | 304S11 | 1.4948 | X5CrNi18-10 | SUS 304H |
| Electrical Resistivity (n.m) | Density (kg/m3) | Thermal Expansion (m/m/0C) | Specific Heat (J/kg.K) | Thermal Conductivity (W/m.K) | Elastic Modulus (GPa) | |||
| 0-5380C | 0-3150C | 0-1000C | at 5000C | at 1000C | ||||
| 720 | 8000 | 18.4 | 17.8 | 17.2 | 500 | 21.5 | 16.2 | 193 |
