Electropolished Stainless Steel Pipes (EP Pipes) are high-grade stainless steel tubing that, through an electropolishing treatment, is given a smooth, mirror finish. The procedure refines the surface quality by removing microscopic defects, minimizing risks of contamination and enhancing corrosion resistance. Electropolished Stainless Steel Tubing finds widespread application in those industries where there is a need for high purity and cleanliness, e.g., in pharmaceuticals, food and beverage, biotechnology, semiconductors and chemical processing.
The electropolishing process is done using an electrolytic bath that strips a thin layer off the metal surface, resulting in a bright and ultra-smooth finish. This creates improved flow characteristics, less friction and greater durability, and hence these pipes are best suited for hygienic and high-precision uses. Sheetal Industries is a prominent manufacturer, supplier and distributor of high-grade Electropolished Stainless Steel Pipe, such as SS 304 Electropolished Pipes and Stainless Steel 316L Electropolished Pipes, serving domestic and global markets from Mumbai, India.
Table Of Content
We offer a range of Welded Electro Polished Pipes, including A269 Polished Pipe, A249 Polished Steel Pipe and A270 Electro Polished Pipe, with high accuracy and superior quality. These pipes are offered in various surface finishes like Bright Annealed (BA) Finish, No. 4 Brushed Finish and Inner Polished types, each fulfilling different industrial needs. BA Finish provides a reflective and even finish for pharmaceutical and food grade use, whereas No. 4 Brushed Finish provides a satin-like finish for architectural use. Inner Polished Pipes are suitable for high-purity environments like the semiconductor and biotechnology industries. Complies with ASTM A270, A249, A269 and ASME/ANSI B46.1 standards, our pipes offer enhanced corrosion resistance, improved product purity and improved flow characteristics.
Electropolishing is an electrochemical process used to brighten and polish stainless steel tubes' surface. It provides high corrosion resistance, clean surfaces and best performance for critical applications. The main manufacturing processes are:
Raw Material Selection
Only premium-quality stainless steel alloys, such as SS 304 and SS 316L, are chosen to
ensure durability and resistance to corrosion.
Cutting and Shaping
Precision cutting techniques like sawing and laser cutting are employed to achieve exact
dimensions and smooth edges.
Electropolishing
The pipes undergo an electrolytic bath to remove surface impurities, enhancing their purity
and smoothness for high-performance applications.
Rinsing and Cleaning
Deionized water is used for rinsing to eliminate any chemical residues, ensuring a
contaminant-free, high-purity finish.
Finishing and Quality Control
Each pipe is strictly inspected, and passivated to verify that it fulfills the prescribed
industry standards as well as the customer requirements.
Packaging and Delivery
Secure packaging techniques are used to avoid damage during transportation and timely
delivery ensures that customers get their products in perfect condition.
In delivering exceptional Stainless Steel Electropolished Pipes, we ensure to make all our customers satisfied with their orders. With a wide variety of products, high quality standards as well as a modern manufacturing approach, we are a reliable partner for clients all around the world. Our team is committed to on-time delivery and great customer service. Do not hesitate to contact us if you need any further information or assistance on electropolished pipes made from stainless steel – experience the reliability of our premium stainless steel electropolished pipes.
Category | Details |
Standard | ASTM A312, ASTM A269 / ASME SA312, SA269 |
Dimensions | ANSI/ASME B36.19M, ANSI/ASME B36.10M |
Seamless Pipe Sizes | 1/2" NB - 16" NB |
Welded Pipe Sizes | 1/2" NB - 24" NB |
Manufacturing Process | Seamless, Welded, ERW, Fabricated, CDW, 100% X-Ray Welded |
Pipe Schedule | SCH 5, SCH 10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS |
Length Options | Single Random, Double Random, Standard, Cut Length |
Delivery Condition | Annealed & Pickled, Polished, Bright Annealed, Cold Drawn |
Outside Finish | 2B, No.4, No.1, No.8 Mirror Finish, Custom Finish per requirements |
Value Added Services | Cutting, Beveling, Polishing, Threading, Destructive & Non-Destructive Testing, Ultrasonic Testing |
STANDARD | UNS | WERKSTOFF NR. | AFNOR | EN | JIS | BS | GOST |
SS 304 | S30400 | 1.4301 | Z7CN18‐09 | X5CrNi18-10 | SUS 304 | 304S31 | 08Х18Н10 |
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
304 | 0.08 | 2.0 | 0.75 | 0.045 | 0.030 | 18.0-20.0 | - | 8.0-10.5 | 0.10 |
Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
Rockwell B (HR B) max | Brinell (HB) max | ||||
304 | 515 | 205 | 40 | 92 | 201 |
Unit | Description | Price (USD) |
Per Kg | Electropolishing Round Polished SS Tube | $10.35 |
Per Kg | Electropolished 50mm Stainless Steel Tubes | $11.43 |
Per Kg | Electropolished Diameter 1/2 x 0.035 600 SS Tube | $10.35 |
Surface Finish | Exterbal Surface(OD) | Internal Surface(ID) | |||
Roughness Average(RA) | Roughness Average(RA) | ||||
μ inch | μm | μ inch | μm | ||
EP | Electro Polish | 32 | 0.8 | 15,10,7,5 | 0.38,0.25,0.20;0.13 |
BA | Beight Annealed | 32 | 0.8 | 40,32,25,20 | 1.0,0.8,0.6,0.5 |
AP | Annealed & Pickled | 40 or Not defined | 1.0 or Not defined | Not defined | Not defined |
MP | Mechanical Polish | 32 | 0.8 | 40,32,25,20 | 1.0,0.8,0.6,0.5 |
Pipe Size in Inches | Pipe Schedule | 500 | 100 | 300 | 200 | 400 | 600 | 700 | 650 | 750 |
4 | 40 | 1014 | 1531 | 1187 | 1321 | 1091 | 967 | 919 | 938 | 909 |
80 | 1466 | 2213 | 1715 | 1909 | 1577 | 1397 | 1328 | 1355 | 1314 | |
160 | 2386 | 3601 | 2791 | 3106 | 2566 | 2273 | 2161 | 2206 | 2138 | |
1 1/2 | 40 | 1496 | 2257 | 1750 | 1947 | 1608 | 1425 | 1354 | 1383 | 1340 |
80 | 2108 | 3182 | 2466 | 2744 | 2267 | 2009 | 1909 | 1949 | 1889 | |
160 | 3060 | 4619 | 3580 | 3984 | 3291 | 2916 | 2772 | 2829 | 2743 | |
2 | 40 | 1260 | 1902 | 1474 | 1640 | 1355 | 1201 | 1141 | 1165 | 1129 |
80 | 1820 | 2747 | 2129 | 2369 | 1957 | 1734 | 1648 | 1682 | 1631 | |
160 | 2980 | 4499 | 3486 | 3880 | 3205 | 2840 | 2699 | 2755 | 2671 | |
8 | 40 | 711 | 1073 | 832 | 926 | 765 | 678 | 644 | 657 | 637 |
80 | 1121 | 1692 | 1311 | 1459 | 1205 | 1068 | 1015 | 1036 | 1005 | |
160 | 2103 | 3175 | 2460 | 2738 | 2262 | 2004 | 1905 | 1944 | 1885 | |
6 | 40 | 808 | 1219 | 945 | 1052 | 869 | 770 | 732 | 747 | 724 |
80 | 1267 | 1913 | 1483 | 1650 | 1363 | 1208 | 1148 | 1172 | 1136 | |
160 | 2179 | 3289 | 2549 | 2836 | 2343 | 2076 | 1973 | 2014 | 1953 | |
1 | 40 | 2019 | 3048 | 2362 | 2629 | 2171 | 1924 | 1824 | 1867 | 1810 |
80 | 2791 | 4213 | 3265 | 3634 | 3002 | 2659 | 2528 | 2580 | 2501 | |
160 | 4068 | 6140 | 4759 | 5296 | 4375 | 3876 | 3684 | 3761 | 3646 | |
3 | 40 | 1196 | 1806 | 1400 | 1558 | 1287 | 1140 | 1084 | 1106 | 1072 |
80 | 1691 | 2553 | 1979 | 2202 | 1819 | 1612 | 1532 | 1564 | 1516 | |
160 | 2544 | 3840 | 2976 | 3312 | 2736 | 2424 | 2304 | 2352 | 2280 | |
5 | 40 | 889 | 1342 | 1040 | 1158 | 956 | 847 | 805 | 822 | 797 |
80 | 1312 | 1981 | 1535 | 1709 | 1411 | 1250 | 1189 | 1213 | 1176 | |
160 | 2262 | 3414 | 2646 | 2945 | 2433 | 2155 | 2049 | 2091 | 2027 | |
10 | 40 | 645 | 974 | 755 | 840 | 694 | 615 | 584 | 596 | 578 |
80 | 1066 | 1609 | 1247 | 1388 | 1147 | 1016 | 966 | 986 | 956 | |
160 | 2085 | 3147 | 2439 | 2714 | 2242 | 1986 | 1880 | 1927 | 1868 |
Gauge | Typical Value in Inch | Thickness Range in Inch |
12 | 0.109 | 0.101 through 0.111 |
20 | 0.035 | 0.031 through 0.035 |
15 | 0.072 | 0.066 through 0.074 |
10 | 0.134 | 0.126 through 0.136 |
19 | 0.042 | 0.038 through 0.042 |
13 | 0.095 | 0.087 through 0.097 |
22 | 0.028 | 0.025 through 0.029 |
18 | 0.049 | 0.044 through 0.049 |
17 | 0.058 | 0.053 through 0.058 |
9 | 0.148 | 0.140 through 0.150 |
16 | 0.065 | 0.060 through 0.065 |
14 | 0.083 | 0.075 through 0.085 |
11 | 0.12 | 0.112 through 0.122 |
8 | 0.165 | 0.157 through 0.167 |
7 | 0.18 | 0.175 through 0.185 |
Nominal Pipe Size | Permissible Variations in Outside Diameter | |
Over Inch | Under Inch | |
Over 8 to 18, incl | 3/23 (0.093) | 1/32 (0.031) |
Over 1-1/2 to 4, incl | 1/32 (0.031) | 1/32 (0.031) |
1/8 to 1-1/2, incl | 1/64 (0.015) | 1/32 (0.031) |
Over 4 to 8, incl | 1/16 (0.062) | 1/32 (0.031) |
Nominal Pipe Sizes | Wall Thickness | Outside Diameter | Weight | Weight | |||
Schedule | Inch | MM | Inch | MM | Lbs/feet | kg/Meter | |
3/4 | 40 STD | 0.113 | 2.870 | 1.050 | 27 | 1.131 | 1.684 |
80 STD | 0.154 | 3.912 | 1.474 | 2.195 | |||
1 | 40 STD | 0.133 | 3.378 | 1.315 | 33 | 1.679 | 2.501 |
80 STD | 0.179 | 4.547 | 2.172 | 3.325 | |||
1/2 | 40 STD | 0.109 | 2.769 | 0.840 | 21 | 0.851 | 1.268 |
80 STD | 0.147 | 3.734 | 1.088 | 1.621 | |||
1 1/4 | 40 STD | 0.140 | 3.556 | 1.660 | 42 | 2.273 | 3.385 |
80 STD | 0.191 | 4.851 | 2.997 | 4.464 | |||
1 1/2 | 40 STD | 0.145 | 3.683 | 1.900 | 48 | 2.718 | 4.048 |
80 STD | 0.200 | 5.080 | 3.361 | 5.409 | |||
2 | 40 STD | 0.154 | 3.912 | 2.375 | 60 | 3.653 | 5.441 |
80 STD | 0.218 | 5.537 | 5.022 | 7.480 | |||
3 | 40 STD | 0.216 | 5.486 | 3.500 | 89 | 7.576 | 11.284 |
80 STD | 0.300 | 7.620 | 10.253 | 15.272 | |||
4 | 0.237 | 6.020 | 4.500 | 114 | 10.790 | 16.073 | |
0.337 | 8.560 | 14.983 | 22.318 | ||||
2 1/2 | 40 STD | 0.203 | 5.516 | 2.875 | 73 | 5.793 | 8.629 |
80 STD | 0.276 | 7.010 | 7.661 | 11.411 | |||
6 | 0.188 | 4.775 | 6.625 | 168 | 12.924 | 19.252 | |
0.203 | 5.516 | 13.923 | 20.739 | ||||
0.219 | 5.563 | 14.983 | 22.318 | ||||
0.250 | 6.350 | 17.021 | 25.354 | ||||
40 STD | 0.280 | 7.112 | 18.974 | 58.263 | |||
0.312 | 7.925 | 21.036 | 31.334 | ||||
0.375 | 9.525 | 25.031 | 37.285 | ||||
80 XHY | 0.432 | 10.973 | 28.573 | 42.561 | |||
0.500 | 12.700 | 32.708 | 48.719 | ||||
10 | 0.188 | 4.775 | 10.750 | 273 | 21.207 | 31.588 | |
0.219 | 5.563 | 24.631 | 36.689 | ||||
20 | 0.250 | 6.350 | 28.035 | 41.759 | |||
30 | 0.307 | 7.798 | 34.240 | 51.002 | |||
0.344 | 8.738 | 38.231 | 56.946 | ||||
40 STD | 0.365 | 9.271 | 40.483 | 63.301 | |||
0.438 | 11.125 | 48.238 | 71.852 | ||||
60 XHY | 0.500 | 12.700 | 54.735 | 81.530 | |||
80 | 0.594 | 15.088 | 64.429 | 95.969 | |||
8 | 0.188 | 4.775 | 8.625 | 219 | 16.940 | 25.233 | |
0.203 | 5.156 | 18.259 | 27.198 | ||||
0.219 | 5.563 | 19.661 | 29.286 | ||||
20 | 0.250 | 6.350 | 22.361 | 33.308 | |||
30 | 0.277 | 7.036 | 24.696 | 36.786 | |||
40 | 0.322 | 8.179 | 28.554 | 42.352 | |||
0.375 | 9.525 | 33.041 | 49.216 | ||||
60 | 0.406 | 10.312 | 35.638 | 53.085 | |||
80 XHY | 0.500 | 12.700 | 43.388 | 64.627 | |||
12 | 0.188 | 4.775 | 12.750 | 324 | 25.222 | 37.570 | |
0.219 | 5.563 | 29.309 | 43.657 | ||||
0.250 | 6.350 | 33.375 | 49.713 | ||||
0.281 | 7.137 | 37.420 | 55.739 | ||||
0.312 | 7.925 | 41.445 | 61.735 | ||||
0.375 | 9.525 | 49.562 | 73.824 | ||||
0.406 | 10.312 | 53.525 | 79.727 | ||||
0.500 | 12.700 | 65.415 | 97.438 | ||||
0.562 | 14.275 | 73.154 | 108.966 | ||||
16” | 0.188 | 4.775 | 16.000 | 406 | 21.748 | 47.290 | |
0.219 | 5.563 | 36.910 | 54.980 | ||||
10 | 0.250 | 6.350 | 42.053 | 62.639 | |||
0.281 | 7.137 | 47.174 | 70.268 | ||||
20 | 0.312 | 7.925 | 52.275 | 77.866 | |||
0.344 | 8.738 | 57.519 | 85.677 | ||||
30 STD |
0.375 | 9.525 | 62.578 | 93.213 | |||
0.438 | 11.125 | 72.797 | 108.433 | ||||
40 XHY |
0.500 | 12.700 | 82.770 | 123.289 | |||
14 | 0.188 | 4.775 | 14.000 | 356 | 27.732 | 41.308 | |
0.219 | 5.563 | 32.233 | 48.012 | ||||
20 | 0.250 | 6.350 | 36.713 | 54.685 | |||
0.281 | 7.137 | 41.172 | 61.327 | ||||
0.312 | 7.925 | 45.611 | 67.939 | ||||
STD | 0.375 | 9.525 | 54.568 | 81.281 | |||
40 | 0.438 | 11.125 | 63.441 | 94.498 | |||
XHY | 0.500 | 12.700 | 72.090 | 107.381 | |||
0.625 | 15.875 | 89.278 | 132.983 | ||||
18 | 0.219 | 5.563 | 18.000 | 457 | 41.588 | 61.948 | |
0.250 | 6.350 | 47.393 | 70.593 | ||||
0.281 | 7.137 | 53.176 | 79.208 | ||||
20 | 0.312 | 7.925 | 58.939 | 87.792 | |||
STD | 0.375 | 9.525 | 70.588 | 105.144 | |||
30 | 0.438 | 11.125 | 82.152 | 122.369 | |||
XHY | 0.500 | 12.700 | 93.450 | 139.198 | |||
40 | 0.562 | 14.275 | 104.666 | 155.904 | |||
0.625 | 15.875 | 115.978 | 172.754 | ||||
20 | 0.250 | 6.350 | 20.000 | 508 | 52.733 | 78.547 | |
0.282 | 7.163 | 59.386 | 88.458 | ||||
0.312 | 7.925 | 65.604 | 97.719 | ||||
20 STD | 0.375 | 9.525 | 78.598 | 117.075 | |||
0.438 | 11.125 | 91.508 | 136.305 | ||||
30 XHY | 0.500 | 12.700 | 104.130 | 155.106 | |||
40 | 0.594 | 15.088 | 123.110 | 183.378 | |||
0.625 | 15.875 | 129.328 | 192.640 | ||||
0.688 | 17.475 | 141.901 | 211.368 | ||||
24 | 0.250 | 6.350 | 24.000 | 610 | 63.413 | 94.456 | |
0.281 | 7.137 | 71.183 | 106.029 | ||||
0.312 | 7.925 | 18.932 | 117.573 | ||||
20 STD | 0.375 | 9.525 | 64.618 | 140.938 | |||
0.438 | 11.125 | 110.219 | 164.176 | ||||
XHY | 0.500 | 12.700 | 125.490 | 186.923 | |||
0.625 | 15.875 | 156.028 | 232.410 | ||||
40 | 0.688 | 17.475 | 171.293 | 255.148 | |||
0.750 | 19.050 | 186.233 | 277.401 | ||||
30 | 0.250 | 6.350 | 30.000 | 762 | 79.433 | 118.318 | |
0.281 | 7.137 | 89.189 | 132.851 | ||||
10 | 0.312 | 7.925 | 98.925 | 147.353 | |||
STD | 0.375 | 9.525 | 118.648 | 176.731 | |||
0.438 | 11.125 | 138.286 | 205.983 | ||||
20 XHY | 0.500 | 12.700 | 157.530 | 234.647 | |||
30 | 0.625 | 15.875 | 196.078 | 292.066 | |||
0.688 | 17.475 | 215.380 | 320.817 | ||||
0.750 | 19.050 | 234.293 | 348.988 | ||||
36 | 0.250 | 6.350 | 36.000 | 914 | 95.453 | 142.180 | |
0.281 | 7.137 | 107.196 | 159.672 | ||||
10 | 0.312 | 7.925 | 118.918 | 177.133 | |||
STD | 0.375 | 9.525 | 142.678 | 215.525 | |||
0.438 | 11.125 | 166.353 | 247.790 | ||||
20 XHY | 0.500 | 12.700 | 198.570 | 282.372 | |||
0.625 | 15.875 | 236.128 | 351.723 | ||||
0.688 |
17.475 | 259.467 | 386.487 | ||||
0.750 |
19.050 | 282.353 | 420.576 | ||||
42 | 0.312 | 7.925 | 42.000 | 1067 | 138.911 | 206.914 | |
STD | 0.375 | 9.525 | 166.708 | 248.319 | |||
XHY | 0.500 | 12.700 | 221.610 | 33.097 | |||
0.750 | 19.050 | 330.413 | 492.163 | ||||
48 | STD | 0.375 | 9.525 | 48.000 | 1219 | 190.738 | 284.112 |
0.438 | 11.125 | 222.487 | 331.404 | ||||
XHY | 0.500 | 12.700 | 253.650 | 377.822 | |||
0.750 | 19.050 | 378.473 | 563.750 | ||||
0.875 | 22.225 | 440.383 | 655.969 |
Nominal size in inches | Outside diameter in inches | Outside diameter in mm | Wall thickness in mm | Wall thickness in inches | Weight [kg/meter] | Weight [lbs/feet] |
---|---|---|---|---|---|---|
1/8 6 | 0.41 | 10.3 | 1.73 | 0.068 | 0.37 | 0.24 |
1/4 8 | 0.54 | 13.7 | 2.24 | 0.088 | 0.63 | 0.42 |
3/8 10 | 0.68 | 17.1 | 2.31 | 0.091 | 0.84 | 0.57 |
1/2 15 | 0.84 | 21.3 | 2.77 | 0.109 | 1.27 | 0.85 |
3/4 20 | 1.05 | 26.7 | 2.87 | 0.113 | 1.69 | 1.13 |
1 25 | 1.32 | 33.4 | 3.38 | 0.133 | 2.5 | 1.68 |
1 1/4 32 | 1.66 | 42.2 | 3.56 | 0.14 | 3.39 | 2.27 |
1 1/2 40 | 1.9 | 48.3 | 3.68 | 0.145 | 4.05 | 2.72 |
2 50 | 2.375 | 60.3 | 3.91 | 0.154 | 5.44 | 3.65 |
2 1/2 65 | 2.875 | 73 | 5.16 | 0.203 | 8.63 | 5.79 |
3 80 | 3.5 | 88.9 | 5.49 | 0.216 | 11.29 | 7.58 |
3 1/2 90 | 4 | 101.6 | 5.74 | 0.226 | 13.57 | 9.11 |
4 100 | 4.5 | 114.3 | 6.02 | 0.237 | 16.07 | 10.79 |
5 125 | 5.563 | 141.3 | 6.55 | 0.258 | 21.77 | 14.62 |
6 150 | 6.625 | 168.3 | 7.11 | 0.28 | 28.26 | 18.97 |
8 200 | 8.625 | 219.1 | 8.18 | 0.322 | 42.55 | 28.55 |
10 250 | 10.75 | 273 | 9.27 | 0.365 | 60.31 | 40.48 |
12 300 | 12.75 | 323.8 | 10.31 | 0.406 | 79.73 | 53.52 |
14 350 | 14 | 355.6 | 11.13 | 0.437 | 94.55 | 54.57 |
16 400 | 16 | 406.4 | 12.7 | 0.5 | 123.3 | 82.77 |
18 450 | 18 | 457 | 14.27 | 0.562 | 155.8 | 104.67 |
20 500 | 20 | 508 | 15.09 | 0.594 | 183.42 | 123.11 |
24 600 | 24 | 610 | 17.48 | 0.688 | 255.41 | 171.29 |
32 800 | 32 | 813 | 17.48 | 0.688 | 342.91 | 230.08 |
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