Stainless Steel 201/304/304L/316/316L Square pipe Pipe, ASTM A312 Stainless Steel Welded Square steel pipe
Bhawal Steel Agency is a steel manufacturing industry, where we produce different types of steel products. We are the manufacturer, dealers, suppliers and stockist of steel products. We supply our products and services globally by taking all types of safety measures and precautions. Our stainless steel square pipes are designed considering international and national standards.
Stainless steel square pipes are made of high quality raw material. There are various types of grades in this austenitic steel series, which are generally applicable in massive industries for a variety of applications. Stainless steel pipes are used for transferring acids, gases and other liquid chemicals from one place to another.
Stainless steel square pipes are made of high alloyed elements like chromium, nickel, titanium, etc. These pipes are enriched with great weldability and forming properties. Stainless steel square pipes support welding, annealing, and pitting. They have excellent stability and strength.
There are various grades in stainless steel square pipes. Square pipes can stand firm against heat, rising temperature and high pressure. These pipes consist of great mechanical and chemical properties. Stainless steel square pipes can bear high heat and bad weather conditions. These austenitic pipes have high carbon content with excellent thermal conductivity.
Stainless steel square pipes are generally being used on construction sites, they are used for assisting bridges, buildings and plants, these pipes are also used for the manufacturing of bicycles, furniture, doors, windows, etc.
Stainless steel square pipes have high tensile and yield strength with high elongation. These pipes are produced by using high quality raw material and a strong combination of heavy alloyed elements such as nickel, chromium, molybdenum, etc.
Other Steel Pipe
Stainless Steel Square Pipe Specification
| Size | 12.75 X 12.75, 15 X 15, 20 X 20, 25 X 25, 30 X 30, 40 X 40, 50 X 50, 60 X 60, 75 X 75, 80 X 80, 90 X 90, 100 X100 |
| Grades | TP - 304/L/H, TP - 316/L/H/Ti, TP - 317L, TP - 321/H, TP - 347/H, 202, JT - 7, J4 - 1, TP - 409/L, TP - 410, TP - 430Ti, TP 439 |
|
Standards |
ASTM A249 - A269 - A312 - A358 - A409 - A554 - A778 - A789 - A790 |
| TOLERANCE on Length | Commercial Length: 6000mm +/- 30mm Fix Length: from 1200 mm up to 12000mm with a tolerance up to -0/+ 5mm |
| Finish | Polished Grit 120 - 600, Seamless, Welded, Brushed, Pickled, Solution Annealed and Pickled up to O.D. 219.1mm,Mirror Polished |
Stainless Steel Square Pipe Sizes
STAINLESS STEEL SQUARE PIPE DIMENSIONS AND WEIGHTS
| MM | 0.65 | 0.80 | 0.90 | 0.95 | 1.00 | 1.20 | 1.50 | 2.00 | 2.50 | |
| 12.5 x 12.5 | 0.075 | 0.091 | 0.102 | 0.107 | 0.112 | 0.133 | 0.163 | |||
| 20 x 20 | 0.176 | 0.184 | 0.220 | 0.271 | 0.354 | 0.433 | 0.508 | |||
| 25 x 25 | 0.221 | 0.232 | 0.277 | 0.343 | 0.450 | 0.553 | 0.652 | |||
| 30 x 30 | 0.267 | 0.280 | 0.335 | 0.415 | 0.516 | 0.673 | 0.796 | |||
| 38 x 38 | 0.340 | 0.358 | 0.427 | 0.531 | 0.700 | 0.866 | 1.027 | |||
| 40 x 40 | 0.358 | 0.376 | 0.450 | 0.559 | 0.738 | 0.898 | 1.084 | |||
| 50 x 50 | 0.473 | 0.565 | 0.703 | 0.930 | 1.153 | 1.372 |
Stainless Steel Square Hollow Section / Square Pipe Size / Square Pipe Dimensions / weight chart
| Square Pipe Size (mm) | Square Pipe Thickness (mm) | Square Pipe Kg / Metre |
|---|---|---|
| 20 X 20 Size (mm) | 2 Thickness (mm) | 1.11 Square Pipe Kg / Metre |
| 25 X 25 Size (mm) | 2 Thickness (mm) | 1.43 Square Pipe Kg / Metre |
| 25 X 25 Size (mm) | 2.5 Thickness (mm) | 1.74 Square Pipe Kg / Metre |
| 25 X 25 Size (mm) | 3 Thickness (mm) | 2.04 Square Pipe Kg / Metre |
| 30 X 30 Size (mm) | 2 Thickness (mm) | 1.74 Square Pipe Kg / Metre |
| 30 X 30 Size (mm) | 2.5 Thickness (mm) | 2.14 Square Pipe Kg / Metre |
| 30 X 30 Size (mm) | 3 Thickness (mm) | 2.51 Square Pipe Kg / Metre |
| 30 X 30 Size (mm) | 3.2 Thickness (mm) | 2.65 Square Pipe Kg / Metre |
| 40 X 40 Size (mm) | 2 Thickness (mm) | 2.37 Square Pipe Kg / Metre |
| 40 X 40 Size (mm) | 2.5 Thickness (mm) | 2.92 Square Pipe Kg / Metre |
| 40 X 40 Size (mm) | 3 Thickness (mm) | 3.45 Square Pipe Kg / Metre |
| 40 X 40 Size (mm) | 4 Thickness (mm) | 4.46 Square Pipe Kg / Metre |
| 40 X 40 Size (mm) | 5 Thickness (mm) | 5.40 Square Pipe Kg / Metre |
| 50 X 50 Size (mm) | 2 Thickness (mm) | 3.00 Square Pipe Kg / Metre |
| 50 X 50 Size (mm) | 2.5 Thickness (mm) | 3.71 Square Pipe Kg / Metre |
| 50 X 50 Size (mm) | 3 Thickness (mm) | 4.39 Square Pipe Kg / Metre |
| 50 X 50 Size (mm) | 4 Thickness (mm) | 5.72 Square Pipe Kg / Metre |
| 50 X 50 Size (mm) | 5 Thickness (mm) | 6.97 Square Pipe Kg / Metre |
| 50 X 50 Size (mm) | 6 Thickness (mm) | 8.20 Square Pipe Kg / Metre |
| 50 X 50 Size (mm) | 8 Thickness (mm) | 10.50 Square Pipe Kg / Metre |
| 60 X 60 Size (mm) | 3 Thickness (mm) | 5.34 Square Pipe Kg / Metre |
| 60 X 60 Size (mm) | 3.2 Thickness (mm) | 5.67 Square Pipe Kg / Metre |
| 60 X 60 Size (mm) | 3.6 Thickness (mm) | 6.34 Square Pipe Kg / Metre |
| 60 X 60 Size (mm) | 4 Thickness (mm) | 6.97 Square Pipe Kg / Metre |
| 60 X 60 Size (mm) | 5 Thickness (mm) | 8.54 Square Pipe Kg / Metre |
| 70 X 70 Size (mm) | 2.5 Thickness (mm) | 5.28 Square Pipe Kg / Metre |
| 70 X 70 Size (mm) | 3 Thickness (mm) | 6.28 Square Pipe Kg / Metre |
| 70 X 70 Size (mm) | 3.5 Thickness (mm) | 7.25 Square Pipe Kg / Metre |
| 70 X 70 Size (mm) | 3.6 Thickness (mm) | 7.46 Square Pipe Kg / Metre |
| 70 X 70 Size (mm) | 4 Thickness (mm) | 8.23 Square Pipe Kg / Metre |
| 70 X 70 Size (mm) | 5 Thickness (mm) | 10.10 Square Pipe Kg / Metre |
| 70 X 70 Size (mm) | 8 Thickness (mm) | 15.29 Square Pipe Kg / Metre |
| 70 X 70 Size (mm) | 10 Thickness (mm) | 19.13 Square Pipe Kg / Metre |
| 80 X 80 Size (mm) | 3 Thickness (mm) | 7.22 Square Pipe Kg / Metre |
| 80 X 80 Size (mm) | 3.5 Thickness (mm) | 8.35 Square Pipe Kg / Metre |
| 80 X 80 Size (mm) | 3.6 Thickness (mm) | 8.59 Square Pipe Kg / Metre |
| 80 X 80 Size (mm) | 4 Thickness (mm) | 9.48 Square Pipe Kg / Metre |
| 80 X 80 Size (mm) | 5 Thickness (mm) | 11.70 Square Pipe Kg / Metre |
| 80 X 80 Size (mm) | 6 Thickness (mm) | 13.80 Square Pipe Kg / Metre |
| 80 X 80 Size (mm) | 6.3 Thickness (mm) | 14.40 Square Pipe Kg / Metre |
| 80 X 80 Size (mm) | 8 Thickness (mm) | 17.83 Square Pipe Kg / Metre |
| 80 X 80 Size (mm) | 10 Thickness (mm) | 21.88 Square Pipe Kg / Metre |
| 90 X 90 Size (mm) | 3 Thickness (mm) | 8.16 Square Pipe Kg / Metre |
| 90 X 90 Size (mm) | 3.5 Thickness (mm) | 9.45 Square Pipe Kg / Metre |
| 90 X 90 Size (mm) | 3.6 Thickness (mm) | 9.72 Square Pipe Kg / Metre |
| 90 X 90 Size (mm) | 4 Thickness (mm) | 10.70 Square Pipe Kg / Metre |
| 90 X 90 Size (mm) | 5 Thickness (mm) | 13.30 Square Pipe Kg / Metre |
| 90 X 90 Size (mm) | 6 Thickness (mm) | 15.70 Square Pipe Kg / Metre |
| 90 X 90 Size (mm) | 6.3 Thickness (mm) | 16.40 Square Pipe Kg / Metre |
| 90 X 90 Size (mm) | 8 Thickness (mm) | 20.32 Square Pipe Kg / Metre |
| 90 X 90 Size (mm) | 10 Thickness (mm) | 25.53 Square Pipe Kg / Metre |
| 100 X 100 Size (mm) | 3 Thickness (mm) | 9.10 Square Pipe Kg / Metre |
| 100 X 100 Size (mm) | 4 Thickness (mm) | 12.00 Square Pipe Kg / Metre |
| 100 X 100 Size (mm) | 5 Thickness (mm) | 14.80 Square Pipe Kg / Metre |
| 100 X 100 Size (mm) | 6 Thickness (mm) | 17.60 Square Pipe Kg / Metre |
| 100 X 100 Size (mm) | 6.3 Thickness (mm) | 18.40 Square Pipe Kg / Metre |
| 100 X 100 Size (mm) | 8 Thickness (mm) | 22.90 Square Pipe Kg / Metre |
| 100 X 100 Size (mm) | 10 Thickness (mm) | 27.86 Square Pipe Kg / Metre |
| 100 X 100 Size (mm) | 12 Thickness (mm) | 33.44 Square Pipe Kg / Metre |
| 120 X 120 Size (mm) | 4 Thickness (mm) | 14.50 Square Pipe Kg / Metre |
| 120 X 120 Size (mm) | 5 Thickness (mm) | 18.00 Square Pipe Kg / Metre |
| 120 X 120 Size (mm) | 6 Thickness (mm) | 21.30 Square Pipe Kg / Metre |
| 120 X 120 Size (mm) | 6.3 Thickness (mm) | 22.30 Square Pipe Kg / Metre |
| 120 X 120 Size (mm) | 8 Thickness (mm) | 27.90 Square Pipe Kg / Metre |
| 120 X 120 Size (mm) | 10 Thickness (mm) | 34.13 Square Pipe Kg / Metre |
| 120 X 120 Size (mm) | 12 Thickness (mm) | 39.94 Square Pipe Kg / Metre |
| 120 X 120 Size (mm) | 16 Thickness (mm) | 54.64 Square Pipe Kg / Metre |
| 140 X 140 Size (mm) | 6 Thickness (mm) | 25.97 Square Pipe Kg / Metre |
| 140 X 140 Size (mm) | 8 Thickness (mm) | 32.89 Square Pipe Kg / Metre |
| 140 X 140 Size (mm) | 10 Thickness (mm) | 41.15 Square Pipe Kg / Metre |
| 150 X 150 Size (mm) | 4 Thickness (mm) | 18.30 Square Pipe Kg / Metre |
| 150 X 150 Size (mm) | 5 Thickness (mm) | 22.70 Square Pipe Kg / Metre |
| 150 X 150 Size (mm) | 6 Thickness (mm) | 27.00 Square Pipe Kg / Metre |
| 150 X 150 Size (mm) | 6.3 Thickness (mm) | 28.30 Square Pipe Kg / Metre |
| 150 X 150 Size (mm) | 8 Thickness (mm) | 35.40 Square Pipe Kg / Metre |
| 150 X 150 Size (mm) | 10 Thickness (mm) | 43.47 Square Pipe Kg / Metre |
| 150 X 150 Size (mm) | 12 Thickness (mm) | 53.48 Square Pipe Kg / Metre |
| 150 X 150 Size (mm) | 16 Thickness (mm) | 65.05 Square Pipe Kg / Metre |
| 160 X 160 Size (mm) | 6 Thickness (mm) | 27.39 Square Pipe Kg / Metre |
| 160 X 160 Size (mm) | 8 Thickness (mm) | 36.90 Square Pipe Kg / Metre |
| 160 X 160 Size (mm) | 10 Thickness (mm) | 46.88 Square Pipe Kg / Metre |
| 180 X 180 Size (mm) | 5 Thickness (mm) | 27.97 Square Pipe Kg / Metre |
| 180 X 180 Size (mm) | 6 Thickness (mm) | 33.26 Square Pipe Kg / Metre |
| 180 X 180 Size (mm) | 8 Thickness (mm) | 43.00 Square Pipe Kg / Metre |
| 180 X 180 Size (mm) | 10 Thickness (mm) | 53.00 Square Pipe Kg / Metre |
| 180 X 180 Size (mm) | 12 Thickness (mm) | 61.01 Square Pipe Kg / Metre |
| 180 X 180 Size (mm) | 12.5 Thickness (mm) | 65.20 Square Pipe Kg / Metre |
| 180 X 180 Size (mm) | 16 Thickness (mm) | 81.30 Square Pipe Kg / Metre |
| 200 X 200 Size (mm) | 5 Thickness (mm) | 31.18 Square Pipe Kg / Metre |
| 200 X 200 Size (mm) | 6 Thickness (mm) | 37.09 Square Pipe Kg / Metre |
| 200 X 200 Size (mm) | 8 Thickness (mm) | 48.00 Square Pipe Kg / Metre |
| 200 X 200 Size (mm) | 10 Thickness (mm) | 59.30 Square Pipe Kg / Metre |
| 200 X 200 Size (mm) | 12 Thickness (mm) | 68.84 Square Pipe Kg / Metre |
| 200 X 200 Size (mm) | 12.5 Thickness (mm) | 73.00 Square Pipe Kg / Metre |
| 200 X 200 Size (mm) | 16 Thickness (mm) | 90.91 Square Pipe Kg / Metre |
| 250 X 250 Size (mm) | 6 Thickness (mm) | 46.83 Square Pipe Kg / Metre |
| 250 X 250 Size (mm) | 8 Thickness (mm) | 60.50 Square Pipe Kg / Metre |
| 250 X 250 Size (mm) | 10 Thickness (mm) | 75.00 Square Pipe Kg / Metre |
| 250 X 250 Size (mm) | 12 Thickness (mm) | 88.45 Square Pipe Kg / Metre |
| 250 X 250 Size (mm) | 12.5 Thickness (mm) | 92.70 Square Pipe Kg / Metre |
| 250 X 250 Size (mm) | 16 Thickness (mm) | 111.48 Square Pipe Kg / Metre |
| 300 X 300 Size (mm) | 6 Thickness (mm) | 55.30 Square Pipe Kg / Metre |
| 300 X 300 Size (mm) | 8 Thickness (mm) | 74.18 Square Pipe Kg / Metre |
| 300 X 300 Size (mm) | 10 Thickness (mm) | 90.70 Square Pipe Kg / Metre |
| 300 X 300 Size (mm) | 12 Thickness (mm) | 108.68 Square Pipe Kg / Metre |
| 300 X 300 Size (mm) | 12.5 Thickness (mm) | 112.00 Square Pipe Kg / Metre |
| 300 X 300 Size (mm) | 16 Thickness (mm) | 141.84 Square Pipe Kg / Metre |
| 350 X 350 Size (mm) | 10 Thickness (mm) | 105.93 Square Pipe Kg / Metre |
| 350 X 350 Size (mm) | 12 Thickness (mm) | 126.74 Square Pipe Kg / Metre |
| 350 X 350 Size (mm) | 16 Thickness (mm) | 166.94 Square Pipe Kg / Metre |
| 400 X 400 Size (mm) | 8 Thickness (mm) | 97.56 Square Pipe Kg / Metre |
| 400 X 400 Size (mm) | 10 Thickness (mm) | 121.95 Square Pipe Kg / Metre |
| 400 X 400 Size (mm) | 12 Thickness (mm) | 151.97 Square Pipe Kg / Metre |
| 400 X 400 Size (mm) | 16 Thickness (mm) | 191.94 Square Pipe Kg / Metr |
| Size | kg / m |
| 12 x 12 x 1.5 mm | 0.59 |
| 15 x 15 x 1.2 mm | 0.54 |
| 15 x 15 x 1.5 mm | 0.66 |
| 20 x 20 x 1.2 mm | 0.73 |
| 20 x 20 x 1.5 mm | 0.90 |
| 20 x 20 x 2.0 mm | 0.18 |
| 25 x 25 x 1.2 mm | 0.93 |
| 25 x 25 x 1.5 mm | 1.15 |
| 25 x 25 x 2.0 mm | 1.50 |
| 25 x 25 x 3.0 mm | 2.22 |
| 30 x 30 x 1.2 mm | 1.11 |
| 30 x 30 x 1.5 mm | 1.37 |
| 30 x 30 x 2.0 mm | 1.84 |
| 30 x 30 x 3.0 mm | 2.72 |
| 40 x 40 x 1.2 mm | 1.50 |
| 40 x 40 x 1.5 mm | 1.86 |
| 40 x 40 x 2.0 mm | 2.45 |
| 40 x 40 x 3.0 mm | 3.76 |
SS SQUARE PIPE NOMINAL BORE SCHEDULE SIZES
| Nominal | SS Square Pipe Schedule 5 | SS Square Pipe Schedule 10 | SS Square Pipe Schedule 40 | |||||||
| Inch | MM | Wt./MM | Kg./M | Kg./Ft | Wt./MM | Kg./M | Kg./Ft | Wt./MM | Kg./M | Kg./Ft |
| 1 / 2 | 21 | 1.65 | 0.801 | 0.244 | 2.11 | 0.999 | 0.305 | 2.77 | 1.270 | 0.387 |
| 3 / 4 | 21.30 | 1.65 | 1.020 | 0.311 | 2.11 | 1.280 | 0.390 | 2.87 | 1.680 | 0.512 |
| 1 | 26.70 | 1.65 | 1.290 | 0.393 | 2.77 | 2.090 | 0.637 | 3.38 | 2.500 | 0.762 |
| 1 1 / 4 | 33.40 | 1.65 | 1.650 | 0.503 | 2.77 | 2.690 | 0.820 | 3.56 | 3.380 | 1.030 |
| 1 1 / 2 | 42.20 | 1.65 | 1.900 | 0.579 | 2.77 | 3.110 | 0.948 | 3.68 | 4.050 | 1.230 |
| 2 | 48.30 | 1.65 | 3.340 | 0.728 | 2.77 | 3.920 | 1.200 | |||
| 2 1 / 2 | 73.00 | 2.11 | 3.690 | 1.130 | 3.05 | 5.260 | 1.600 | |||
| 3 | 88.90 | 2.11 | 4.510 | 1.380 | 3.05 | 6.450 | 1.970 | |||
| 3 1 / 2 | 101.60 | 2.11 | 5.190 | 1.580 | 3.05 | 7.400 | 2.260 | |||
STAINLESS STEEL PIPE PRESSURE RATING
| Pressure Rating (psig) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Pipe Size (inches) |
Pipe Schedule | Temperature (oF) | ||||||||
| 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 | 1868 | |
STAINLESS STEEL PIPE TOLERANCES
| NPS Designator | Permissible Variations in Outside Diameter | |
|---|---|---|
| Over In. | Under In. | |
| 1/8 to 1-1/2, incl | 1/64 (0.015) | 1/32 (0.031) |
| Over 1-1/2 to 4, incl | 1/32 (0.031) | 1/32 (0.031) |
| Over 4 to 8, incl | 1/16 (0.062) | 1/32 (0.031) |
| Over 8 to 18, incl | 3/23 (0.093) | 1/32 (0.031) |
Nominal Wall Thickness:
| NPS Designator | Outside Diameter in. | Schedule 10S in. | Schedule 40S in. | Schedule 80S in. | Schedule 160 in. | Schedule XX in. |
|---|---|---|---|---|---|---|
| 1/4 | 0.540 | 0.065 | 0.088 | 0.119 | ||
| 3/8 | 0.675 | 0.065 | 0.091 | 0.126 | ||
| 1/2 | 0.840 | 0.083 | 0.109 | 0.147 | .188 | .294 |
| 3/4 | 1.050 | 0.083 | 0.113 | 0.154 | .218 | .308 |
| 1.0 | 1.315 | 0.109 | 0.133 | 0.179 | .250 | .358 |
| 1 1/4 | 1.660 | 0.109 | 0.140 | 0.191 | .250 | .382 |
| 1 1/2 | 1.900 | 0.109 | 0.145 | 0.200 | .281 | .400 |
| 2 | 2.375 | 0.109 | 0.154 | 0.218 | .343 | .436 |
| 2 1/2 | 2.875 | 0.120 | 0.203 | 0.276 | .375 | .552 |
| 3 | 3.500 | 0.120 | 0.216 | 0.300 | .438 | .600 |
| 3 1/2 | 4.000 | 0.120 | 0.226 | 0.318 | .636 | |
| 4 | 4.500 | 0.120 | 0.237 | 0.337 | .534 | .674 |
| 5 | 5.563 | 0.134 | 0.258 | 0.375 | .625 | .750 |
| 6 | 6.625 | 0.134 | 0.280 | 0.432 | .719 | .864 |
| 8 | 8.625 | 0.148 | 0.322 | 0.500 | .906 | .875 |
| 10 | 10.750 | 0.165 | 0.365 | 0.500 | 1.125 | |
| 12 | 12.750 | 0.180 | 0.375 | 0.500 | 1.312 | |
| 14 | 14.000 | 0.188 | 0.375 | 0.500 | 1.406 | |
| 16 | 16.000 | 0.188 | 0.375 | 0.500 | 1.594 |
Minimum Wall Thickness on Inspection
| Nominal Thickness | Minimum Thickness on Inspection | Nominal Thickness | Minimum Thickness on Inspection | Nominal Thickness | Minimum Thickness on Inspection | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| in. | mm | in | mm | in | mm | in | mm | in | mm | in | mm |
| 0.068 | 1.7 | 0.060 | 1.5 | 0.294 | 7.5 | 0.257 | 6.5 | 0.750 | 19.0 | 0.658 | 16.6 |
| 0.068 | 2.2 | 0.077 | 2.0 | 0.300 | 7.6 | 0.262 | 6.7 | 0.812 | 20.6 | 0.710 | 18.0 |
| 0.091 | 2.3 | 0.080 | 2.0 | 0.307 | 7.8 | 0.269 | 6.8 | 0.843 | 21.4 | 0.736 | 18.7 |
| 0.095 | 2.4 | 0.083 | 2.1 | 0.308 | 7.8 | 0.270 | 6.9 | 0.854 | 21.7 | 0.756 | 19.2 |
| 0.113 | 2.9 | 0.099 | 2.5 | 0.312 | 7.9 | 0.273 | 6.9 | 0.875 | 22.2 | 0.766 | 19.5 |
| 0.119 | 3.0 | 0.104 | 2.6 | 0.318 | 8.1 | 0.278 | 7.1 | 0.906 | 23.0 | 0.783 | 20.1 |
| 0.125 | 3.2 | 0.109 | 2.8 | 0.322 | 8.2 | 0.282 | 7.2 | 0.937 | 23.8 | 0.820 | 20.8 |
| 0.126 | 3.2 | 0.110 | 2.8 | 0.330 | 8.4 | 0.289 | 7.3 | 0.968 | 24.6 | 0.847 | 21.5 |
| 0.133 | 3.4 | 0.116 | 2.9 | 0.337 | 8.6 | 0.295 | 7.5 | 1.000 | 25.4 | 0.875 | 22.2 |
| 0.140 | 3.6 | 0.122 | 3.1 | 0.343 | 8.7 | 0.300 | 7.6 | 1.031 | 26.2 | 0.902 | 22.9 |
| 0.145 | 3.7 | 0.127 | 3.2 | 0.344 | 8.7 | 0.301 | 7.6 | 1.062 | 27.0 | 0.929 | 23.6 |
| 0.147 | 3.7 | 0.129 | 3.3 | 0.358 | 9.1 | 0.313 | 8.0 | 1.083 | 27.8 | 0.956 | 24.3 |
| 0.154 | 3.9 | 0.135 | 3.4 | 0.365 | 9.3 | 0.319 | 8.1 | 1.125 | 28.6 | 0.984 | 25.0 |
| 0.156 | 4.0 | 0.136 | 3.5 | 0.375 | 9.5 | 0.328 | 8.3 | 1.156 | 29.4 | 1.012 | 25.7 |
| 0.179 | 4.5 | 0.157 | 4.0 | 0.382 | 9.7 | 0.334 | 8.5 | 1.218 | 30.9 | 1.066 | 27.1 |
| 0.187 | 43.7 | 0.164 | 4.2 | 0.400 | 10.2 | 0.350 | 8.9 | 1.250 | 31.8 | 1.094 | 27.8 |
| 0.188 | 4.8 | 0.164 | 4.2 | 0.406 | 10.3 | 0.355 | 9.0 | 1.281 | 32.5 | 1.121 | 28.5 |
| 0.191 | 4.9 | 0.167 | 4.2 | 0.432 | 10.4 | 0.378 | 9.6 | 1.312 | 33.3 | 1.148 | 29.2 |
| 0.200 | 5.1 | 0.175 | 4.4 | 0.436 | 11.1 | 0.382 | 9.7 | 1.343 | 34.1 | 1.175 | 29.8 |
| 0.203 | 5.2 | 0.178 | 4.5 | 0.437 | 11.1 | 0.382 | 9.7 | 1.375 | 34.9 | 1.203 | 30.6 |
| 0.216 | 5.5 | 0.189 | 4.8 | 0.438 | 11.1 | 0.383 | 9.7 | 1.406 | 35.7 | 1.230 | 31.2 |
| 0.218 | 5.5 | 0.191 | 4.9 | 0.500 | 12.7 | 0.438 | 11.1 | 1.436 | 36.5 | 1.258 | 32.0 |
| 0.219 | 5.6 | 0.192 | 4.9 | 0.531 | 13.5 | 0.465 | 11.8 | 1.500 | 36.1 | 1.312 | 33.3 |
| 0.226 | 5.7 | 0.196 | 5.0 | 0.552 | 14.0 | 0.483 | 12.3 | 1.531 | 38.9 | 1.340 | 34.0 |
| 0.237 | 6.0 | 0.207 | 5.2 | 0.562 | 14.3 | 0.492 | 12.5 | 1.562 | 39.7 | 1.367 | 34.7 |
| 0.250 | 6.4 | 0.219 | 5.6 | 0.593 | 15.1 | 0.519 | 13.2 | 1.593 | 40.5 | 1.394 | 35.4 |
| 0.258 | 6.6 | 0.226 | 5.7 | 0.600 | 15.2 | 0.525 | 13.3 | 1.750 | 44.5 | 1.531 | 38.9 |
| 0.276 | 7.0 | 0.242 | 6.1 | 0.625 | 15.9 | 0.547 | 13.9 | 1.781 | 45.2 | 1.558 | 39.6 |
| 0.277 | 7.0 | 0.242 | 6.1 | 0.656 | 16.6 | 0.573 | 14.6 | 1.812 | 46.0 | 1.586 | 49.3 |
| 0.279 | 7.1 | 0.244 | 6.2 | 0.674 | 17.1 | 0.590 | 15.0 | 1.968 | 50.0 | 1.772 | 43.7 |
| 0.280 | 7.1 | 0.245 | 6.2 | 0.687 | 17.4 | 0.601 | 15.3 | 2.062 | 52.4 | 1.804 | 45.8 |
| 0.281 | 7.1 | 0.246 | 6.2 | 0.719 | 18.3 | 0.629 | 16.0 | 2.343 | 59.5 | 2.050 | 52.1 |
Stainless Steel Square Pipe Chemical Composition
| STAINLESS STEEL PIPE GRADES | UNS | C | Mn | P | S | Si | Cr | Ni | Mo | Ti | Nb | N |
| TP304 | S30400 | 0.08 | 2 | 0.045 | 0.03 | 1 | 18.0-20.0 | 8.0-11.0 | ||||
| TP304L | S30403 | 0.035 | 2 | 0.045 | 0.03 | 1 | 18.0-20.0 | 8.0-13.0 | ||||
| TP316 | S3160 | 0.08 | 2 | 0.045 | 0.03 | 1 | 16.0-18.0 | 11.0-14.0 | 2.0-3.0 | |||
| TP316L | S31603 | 0.035 | 2 | 0.045 | 0.03 | 1 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 |
Stainless Steel Square Pipe Mechanical Properties
| Material | Heat | Temperure | Tensile Strength | Yield Strength | Elongation %, Min |
| Treatment | Min. | Ksi (MPa), Min. | Ksi (MPa), Min. | ||
| º F(º C) | |||||
| TP304 | Solution | 1900 (1040) | 75(515) | 30(205) | 35 |
| TP304L | Solution | 1900 (1040) | 70(485) | 25(170) | 35 |
| TP316 | Solution | 1900(1040) | 75(515) | 30(205) | 35 |
| TP316L | Solution | 1900(1040) | 70(485) | 25(170) | 35 |
Industries We Serve
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