Electropolished Stainless Steel Tubing

Electropolished Stainless Steel Tubing

SS 304 EP Tubing and Stainless Steel 316L Electro Polished Pipes manufacturer in India

Exporter and supplier of ASTM A269/ A249/ A270 Welded Electro Polished Pipes with Ba Finish, Inner Polished, and No 4 Brushed Finish accordance to ASME/ ANSI B46.1

Electro Polished is a “reverse plating” process that uses an electrochemical solution to remove the outer layer of stainless steel pipe. By stripping away a uniform layer of stainless steel tube. By stripping away a uniform layer of ss pipe, the electropolishing process also removes embedded contaminants, heat tint and oxide scale, micro cracks, burrs, pits, and other surface defect that can compromise the performance and durability of a part

Electropolished Stainless Steel Tubing is especially done on 300 and 400 series stainless steel that improves a part’s corrosion resistance which leaves a lasting bright finish. Unlike passivation electropolishing can be performed on all varieties of stainless steel which gives its parts of all kinds corrosion resistance superiorto passivation alone—electropolished parts are 30 times more corrosion resistant than those that are passivated. The process of dissolving a uniform layer of surface metal is more effective and aggressive, because it is highly controlled and it can be used to remove as little as .02″ of surface material.

EP Pipes are widely used by surgeons and dentists, appliance manufacturers, automakers and the racing industry and in food, beverages and pharmaceutical processing.  SS 304 Electropolished Pipes has an excellent forming and welding characteristics. It is excellent in a wide range of atmospheric environments and many corrosive media. In warm chloride environments it is subject to crevice corrosion & pitting.

Stainless Steel 316l Electropolished Tubes are readily brake or roll formed into a variety of parts for applications in the architectural, industrial, and transportation fields. It also has outstanding welding characteristics.

No 4 Brushed Finish Stainless Steel Pipe is the most common and is used on appliances and in the food industry. Its appearance is characterised by parallel, short polishing lines that extend uniformly along the length of the coil. According to the requirements of the application, the final finish can be anywhere between 120- and 320-grit. Higher grit numbers produce more reflective finishes and finer polishing lines.

A249 Polished Steel Pipe and A270 Polish Pipe are polished by using grinder and grinding disc by grinding down any welds that are on the pipe. It is mounted into a pipe vise. And then polishing compound is applied to it. The polishing belt is slide between 120 - 180 grit and as needed additional polishing compound is applied to it. Then it continues by using grinding belt. And after that polishing compound is applied to the steel pipe and the fine lines are buffed with a buffer grinding disc.

SS 304 Electropolished Pipes latest Price List

Type Description USA FOB Price Malaysia FOB Price Europe FOB Price Singapore FOB Price Saudi Arabia (KSA) FOB Price
    Unit Per mtr Unit Per mtr Unit Per mtr Unit Per mtr Unit Per mtr
ss 304 electropolished pipes  Size : 50 x 50 x 2mm Thk US $ 7.88 Malaysia Ringgit 32.07 Euro 6.62 Singapore Dollar 10.56 Saudi Riyal 29.55

Stainless Steel Electropolished Pipe Specification Chart

Standards ASTM A213, ASTM A249, ASTM A269, ASME SA213, ASME SA249, ASME SA269, EN 10216-5 TC1 / TC2, PED 97/23/EC, AD 2000, NACE MR0175/ISO 15156
Polished Seamless Tube Size 3.35 mm OD To 101.6 mm OD
Polished Welded Tube Size 6.35 mm OD To 152 mm OD
Swg & Bwg 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg.
Polished tubing wall thickness 0.020" –0.220", (special wall thicknesses available)
SS Polished tube Length Single Random, Double Random, Standard & Cut length
Finishing Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF
Form Round, Coil, Square, Rectangular, Boiler, Hydraulic, Straight or ‘U’ bent Tubes, Hollow, LSAW Tubes Etc.
Type Seamless, ERW, EFW, Welded, Fabricated
Electropolished (EP) Electropolished for Ultra High Purity Systems
Non-Electropolished (BA) Bright Annealed or (AP) Annealed & Pickled for High-Purity, (CFOS) Cleaned for Oxygen Grade Service or Corrosive Systems
I.D. Surface Finish Options 5, 7 & 10 µin. Ra
JIS 8A to 250A
Tolerances In accordance with: ASTM: A269 & A632, JIS: G 3459
Polished tubing End Plain End, Beveled End, Treaded, Ends are suitable for orbital welding
Marking All Polished Stainless Steel tubes are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer’s request.)
Polished tubing Application Polished Oil Tube, Gas Tube, Fluid Tube, Boiler and Heatexchanger
Value Added Service Draw & Expansion as per required Size & Length, Polish (Electro & Commercial) Annealed & Pickled Bending, Machining Etc.
Specialize in Polished Capillary Tube & Other Odd Size 
Polished Heat Exchanger & Condenser Tubes
Polished Hydraulic tubing with OD up to 50.8 mm (2.0 in.) are delivered in bright annealed condition
Polished hydraulic tube with OD larger than 50.8 mm are supplied in the annealed and pickled condition, Or in polished condition
Marking & Traceability Each Stainless Steel Polished Tubing is traceable to its producing mill and heat by an identification number etched within 24" (610mm) of one end.
Polished tubing Test Certificate Manufacturer Test Certificate according to EN 10204 3.1 B
Laboratory Test Certificate from Govt. Approved Lab. 
Under Third Party Inspection
Polished tubing Testing & Inspection Visual inspection • Surface roughness measurement • Helium-leak testing • Scanning Electron Microscopy (SEM) • Auger Electron Microscopy (AES) • Election Spectroscopy for Chemical Analysis (ESCA or XPS) • Particle testing • Moisture testing
We can also cut, thread, and groove Polished Tubes to meet your specifications

Frequently Used Electropolished Stainless Steel Tubing Types

Electropolished Stainless Steel Tubing
SS 304 Electropolished Pipes
No 4 Brushed Finish Stainless Steel Pipe
A270 Polish Pipe
Electropolished Stainless Steel Tubing
ASTM A249 Polished Steel Pipe

Surface Finish of A249 Polished Steel Pipe

Surface Finish Internal Surface(ID) Exterbal Surface(OD)
Roughness Average(RA) Roughness Average(RA)
μ inch μm μ inch μm
AP Annealed & Pickled Not defined Not defined 40 or Not defined 1.0 or Not defined
BA Beight Annealed 40,32,25,20 1.0,0.8,0.6,0.5 32 0.8
MP Mechanical Polish 40,32,25,20 1.0,0.8,0.6,0.5 32 0.8
EP Electro Polish 15,10,7,5 0.38,0.25,0.20;0.13 32 0.8

A270 Polish Pipe Size Chart

Wall Sizes ( O.D.)
.010 1/16" , 1/8" , 3/16"
.020 1/16" , 1/8" , 3/16" , 1/4" , 5/16" , 3/8"
.012 1/8"
.016 1/8" , 3/16"
.028 1/8" , 3/16" , 1/4" , 5/16" , 3/8" , 1/2" , 3/4" , 1" , 1 1/2" , 2"
.035 1/8" , 3/16" , 1/4" , 5/16" , 3/8" , 7/16" , 1/2" , 16" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 1 5/8" , 2" , 2 1/4"
.049 3/16" , 1/4" , 5/16" , 3/8" , 1/2" , 16" , 5/8" , 3/4" , 7/8" , 1" , 1 1/8" , 1 1/4" , 1 1/2" , 1 5/8" , 2" , 2 1/4"
.065 1/4" , 5/16" , 3/8" , 1/2" , 16" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 1 5/8" , 1 3/4" , 2" , 2 1/2" , 3"
.083 1/4" , 3/8" , 1/2" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 1 5/8" , 1 7/8" , 2" , 2 1/2" ,3"
.095 1/2" , 5/8" , 1" , 1 1/4" , 1 1/2" , 2"
.109 1/2" , 3/4" , 1" , 1 1/4" , 1 1/2" , 2"
.120 1/2" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 2" , 2 1/4" , 2 1/2" , 3"
.125 3/4" , 1" , 1 1/4" , 1 1/2" , 2" , 3" , 3 1/4"
.134 1"
.250 3"
.375 3 1/2"

Stainless Steel 316L Electro Polished Pipes Tolerance

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)

No 4 Brushed Finish Stainless Steel Pipe Wall Thickness

GAUGE THICKNESS RANGE(INCHES) TYPICAL VALUE (INCHES)
22 0.025 through 0.029 0.028
20 0.031 through 0.035 0.035
19 0.038 through 0.042 0.042
18 0.044 through 0.049 0.049
17 0.053 through 0.058 0.058
16 0.060 through 0.065 0.065
15 0.066 through 0.074 0.072
14 0.075 through 0.085 0.083
13 0.087 through 0.097 0.095
12 0.101 through 0.111 0.109
11 0.112 through 0.122 0.12
10 0.126 through 0.136 0.134
9 0.140 through 0.150 0.148
8 0.157 through 0.167 0.165
7 0.175 through 0.185 0.18

SS Electropolished pipes Pressure ratings

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

Electropolished Stainless Steel Tubing manufacturers in India

Stainless Steel 316l Electropolished Tubes manufacturer