Stainless Steel 321 Seamless Pipe

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ASTM A312 TP 321 Tube And ASME SA 213 TP 321H Material supplier in Mumbai, India

Stainless Steel 321 Seamless Pipe


We manufacture Stainless Steel Seamless pipes in ERW, welded, and many other variants as per the requirement occur. The Stainless Steel 321 Seamless Pipe is of SS 321 grade and comes with titanium percentage around 5 times carbon content helping in low carbide precipitation. The SS 321 Welded pipes are welded pipes manufactured with a flat sheet of stainless steel joined with heat the ends. This leaves a joint in the pipes and tubes of welded design. Another variant is 321/321H Stainless steel round pipe manufactured with a composition of 9-12% of Nickel, 17-19% of chromium, Carbon is 0.15% and titanium is 0.80%. The SS 321 ERW tubes hold the same composition but are manufacture by employing the Electric Resistance Welded method (ERW) method. In this process electric current passes through a cold forming strip of stainless steel and then joined with pressure.

The UNS S32100 U tube conforms to the Unified Numbering System (UNS) with U-shaped to meet the specific requirements. Another variant is the UNS S32100 schedule 40 Pipe which conforms to the same standards, however, schedule 40 signifies the wall thickness of 0.154” and 1-inch pipe size.

The ASTM A312 TP 321 ERW pipes conforms to the American Society for Testing and Materials standards. The higher titanium composition leads to lower carbide precipitation and increasing corrosion resistance. Another variant of stainless steel pipe is DIN 1.4541 Rectangular pipe which also comes in square, round, hexagonal shapes, conforms to German Institute of Standardization (DIN) standards with better strength and reliability. The WERKSTOFF NR.1.4541 Heat exchanger Tube is optimum for boiler and other high heat bearing industries with a temperature tolerance of 1600-1650 Fahrenheit. We offer you several ranges of stainless steel pipes according to your specific requirements.


DIN 1.4541 Square/ Rectangular Pipe stockist in India, Stock of SS 321 Tubing in all shapes, Sizes, thickness and Length

 

Table of Content


 

Stainless Steel 321 Seamless Pipe
Stainless Steel 321 Seamless Pipe
SS 321H Capillary Tube
SS 321H Capillary Tube
321 Stainless Steel Round Pipe
321 Stainless Steel Round Pipe

 

Specification List of Stainless Steel 321 Seamless Pipe

ASTM / ASME Standards
  • ASTM A213 / ASME SA213
  • ASTM A249 / ASME SA249
    ASTM A269 / ASME SA269
  • ASTM A554 / ASME SA554
  • ASTM A270 / ASME SA270
  • ASTM A358 / ASME SA358
  • ASTM A312 / ASME SA312
Specialized in Large Diameter Pipe
Stainless Steel EFW Pipe size 5.0 milimeter - 1219.2 milimeter
Stainless Steel 321 Seamless Pipe Finish AP (Annealed & Pickled), Polished, MF, BA (Bright & Annealed)
Seamless Pipe Schedule SCH10, SCH5, STD, SCH40, SCH160, SCH80
Seamless Pipe/tube Length Double Random, Single Random & Cut Length.
Stainless Steel 321 Seamless Pipe Form Square, Round, Rectangular, Hollow, Straight, Hydraulic Pipes, Etc.
End Beveled End, Plain End, Threaded.
Material Test Certificates (MTC) EN 10204 3.1
EN 10204 3.2
Marking All Pipes are marked as follows: Grade, Standard, Thickness, OD, Heat No. (Or according to the customer’s request.), Length
Swg & Bwg 12 Swg., 10 Swg., 16 Swg., 14 Swg., 20 Swg., 18 Swg.
Welded Tube Size 6.35 milimeter Outside Diameter To 152 milimeter Outside Diameter
Seamless Tube Finish Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF
Stainless Steel 321 Seamless tubing wall thickness 0.020" to 0.220", (special wall thicknesses available)
Seamless Tube Type ERW, Seamless, Welded, EFW, Fabricated
Stainless Steel 321 Seamless tube Form Boiler, Straight, Rectangular, Round, Coil, Square, Hydraulic, LSAW, Hollow,‘U’ bent Tubes Etc.
Application Gas Tube, Oil Tube,Heatexchanger and Boiler, Fluid Tube

 

321 Stainless Steel Seamless Tubing Pressure Rating

Pressure Rating (psig)
Seamless Pipe Size
(inches)		 Seamless Pipe Schedule Temperature (oF)
400 650 100 300 600 200 500 700 750
1 1/2" 160 3291 2829 4619 3580 2916 3984 3060 2772 2743
80 2267 1949 3182 2466 2009 2744 2108 1909 1889
40 1608 1383 2257 1750 1425 1947 1496 1354 1340
1" 160 4375 3761 6140 4759 3876 5296 4068 3684 3646
80 3002 2580 4213 3265 2659 3634 2791 2528 2501
40 2171 1867 3048 2362 1924 2629 2019 1824 1810
10" 160 2242 1927 3147 2439 1986 2714 2085 1880 1868
80 1147 986 1609 1247 1016 1388 1066 966 956
40 694 596 974 755 615 840 645 584 578
3" 160 2736 2352 3840 2976 2424 3312 2544 2304 2280
80 1819 1564 2553 1979 1612 2202 1691 1532 1516
40 1287 1106 1806 1400 1140 1558 1196 1084 1072
4" 160 2566 2206 3601 2791 2273 3106 2386 2161 2138
80 1577 1355 2213 1715 1397 1909 1466 1328 1314
40 1091 938 1531 1187 967 1321 1014 919 909
2" 160 3205 2755 4499 3486 2840 3880 2980 2699 2671
80 1957 1682 2747 2129 1734 2369 1820 1648 1631
40 1355 1165 1902 1474 1201 1640 1260 1141 1129
6" 160 2343 2014 3289 2549 2076 2836 2179 1973 1953
80 1363 1172 1913 1483 1208 1650 1267 1148 1136
40 869 747 1219 945 770 1052 808 732 724
5" 160 2433 2091 3414 2646 2155 2945 2262 2049 2027
80 1411 1213 1981 1535 1250 1709 1312 1189 1176
40 956 822 1342 1040 847 1158 889 805 797
8" 160 2262 1944 3175 2460 2004 2738 2103 1905 1885
80 1205 1036 1692 1311 1068 1459 1121 1015 1005
40 765 657 1073 832 678 926 711 644 637

 

Stainless Steel 321 Seamless Pipe Suppliers

Stainless Steel 321 Cold Drawn Pipes

Stainless Steel 321 Cold Drawn Pipes

ASME SA312 Tp 321 Exhaust Pipe

ASME SA312 Tp 321 Exhaust Pipe

SS A312 Tp321h Erw Pipe

SS A312 Tp321h Erw Pipe

Stainless Steel 1.4541 Electropolished Pipe

Stainless Steel 1.4541 Electropolished Pipe

321h Stainless Steel High Pressure Tube

321h Stainless Steel High Pressure Tube

ASTM A249 Tp 321h Thin Wall Tubing

ASTM A249 Tp 321h Thin Wall Tubing

ASME SA249 Tp 321 Efw Tube

ASME SA249 Tp 321 Efw Tube

Stainless Steel 321 Tubing

Stainless Steel 321 Tubing

 

Compare our ASTM A249 TP321 schedule 40 pipe Price list ex Mumbai and 321H Cold Rolled Coiled Tubing price per Kg in India

 

Dimensions of ASME SA312 TP 321 Pipe

Seamless Pipes Size
OD, Inches
Weight
Lbs/Ft.
Wall
Dec-In.
BW
Ga.
ID
1/8
0.0290
0.028
22
0.069
0.0336
0.035
20
0.055
3/16
0.0478
0.028
22
0.131
1/4
0.0491
0.020
25
0.210
0.0664
0.028
22
0.194
0.0745
0.032
21
0.187
0.0804
0.035
20
0.180
0.1052
0.049
18
0.152
0.1284
0.065
16
0.120
5/16
0.1039
0.035
20
0.242
0.1382
0.049
18
0.214
0.1722
0.065
16
0.182
3/8
0.1038
0.028
22
0.319
0.1271
0.035
20
0.305
0.1706
0.049
18
0.277
0.2152
0.065
16
0.245
7/16
0.2036
0.049
18
0.340
1/2
0.1025
0.020
25
0.460
0.1738
0.035
20
0.430
0.2360
0.049
18
0.402
0.3020
0.065
16
0.370
5/8
0.2205
0.035
20
0.555
0.3014
0.049
18
0.527
0.3888
0.065
16
0.495
3/4
0.2673
0.035
20
0.680
0.3668
0.049
18
0.652
0.4755
0.065
16
0.620
0.5913
0.083
14
0.584
7/8
0.4323
0.049
18
0.777
0.5623
0.065
16
0.745
0.9676
0.120
11
0.635
1
0.3607
0.035
20
0.930
0.4977
0.049
18
0.902
0.6491
0.065
16
0.870
0.8129
0.083
14
0.834
1.1278
0.120
11
0.760
1-1/4
1.4480
0.120
11
1.010

 

View Price List of 321 Stainless Steel Round Pipe

Stainless Steel 321 Seamless Pipes Description Stainless Steel 321 Seamless Pipes Price
Cold Rolled Stainless Steel Welded Pipe 321 with Stock Factory Price US $ 1000-3000 / Ton
321 Welded Piping ASTM Hot/Cold Rolled Seamless Steel Pipe US $ 1925-2010 / Ton
ASTM Ba 2b Round Square Rectangular 321 Welded Inox Stainless Steel Seamless Pipe US $ 188-1588 / Ton
Stainless Steel Welded Pipe for Heat Exchanger 321 Stainless Tubes 300 Series US $ 1000 / Ton
A312 321/321H Seamless Stainless Steel Pipe US $ 820-880 / Ton
321 Seamless Stainless Steel Pipe US $ 2300-3000 / Ton
Micro/Capillary Thin Wall SS 321 Stainless Steel Viscometer Pipe US $ 1.1-1.3 / Piece
ERW/Efw Welded Stainless Steel Pipes as Per A312, A358 A790 TP321 US $ 1800-3000 / Ton

 

Chemical Structure of 321 SS Seamless Tube

Grade C Mn Si P S Cr N Ni Ti
Stainless Steel 321 Seamless Pipes 0.08 max 2.0 max 1.0 max 0.045 max 0.030 max 17.00 - 19.00 0.10 max 9.00 - 12.00 5(C+N) - 0.70 max
Stainless Steel 321H Seamless Pipes 0.04 - 0.10 2.0 max 1.0 max 0.045 max 0.030 max 17.00 - 19.00 0.10 max 9.00 - 12.00 4(C+N) - 0.70 max

 

Mechanical Behaviour of SS 321H Weled Pipe

Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
8.0 g/cm3 1457 °C (2650 °F) Psi - 75000 , MPa - 515 Psi - 30000 , MPa - 205 35 %

 

ASTM A213 TP321 Instrumentation Tubes for sale in all sizes at Best price with third party inspection, SS 321 Welded Pipe in accordance to International standard

 

Equivalent of UNS S32100 Pipes

STANDARD WERKSTOFF NR. UNS JIS EN
Stainless Steel 321 Seamless Pipes 1.4541 S32100 SUS 321 X6CrNiTi18-10
Stainless Steel 321H Seamless Pipes 1.4878 S32109 SUS 321H X12CrNiTi18-9

 

DIN 1.4541 Rectangular Pipe Physical Properties

Grade Density (kg/m3) Elastic Modulus (GPa) Mean Coefficient of Thermal Expansion (μm/m/°C) Thermal Conductivity (W/m.K) Specific Heat 0-100 °C (J/kg.K) Electrical Resistivity (nΩ.m)
0-100 °C 0-315 °C 0-538 °C at 100 °C at 500 °C
Stainless Steel 321 Seamless Pipes 8027 193 16.6 17.2 18.6 16.1 22.2 500 720

 

Custom Sizes in ASME SA 312 Grade 321H ERW Pipe also pay only for required length of UNS S32100 Straight Tubo / Coiled tubing/ Annealed Tube/ Square Tube

 

Supply Range Of SS 321 Pipe

Stainless Steel 321 Seamless Pipes Description Wall Thickness, WT (In MM) Outside Diamter, OD (In MM)
Rectangular Pipe/Tube 0.05 to 30 10*20 To 100*200
Square Pipe/Tube 0.05 to 30 12.07* 12.07 To 300* 300
Round Pipe/Tube 0.05 to 30 6 – 630
Electropolished Pipes/Tubes 0.05 to 30 12.07 To 250
Ornamental Tubes 0.05 to 2.00 12.07 To 76.02
Inner/Outside Polished Stainless Steel Tube, Pipes 1.00 – 5 12.05 To 203.02
Colour Coated Pipe/Tube 0.05 to 30 6 To 630
Triangle Tube 0.05 to 3.00 16 To 85
Hexagonal Tube 0.05 to 2.00 13 To 85
Slot Round Pipe/Tube 0.05 to 2.00 12.07 To 76.02
Handrail Tube 0.05 to 2.00 –
Thin to Wall Stainless Steel Tube 0.05 to 2.00 22*0.07 To 108*2.00
Stainless Steel U Shaped Tube 0.05 to 2.00 20 To 200
Stainless Steel Seamless Tube 0.08 – 30 6 To 430
Stainless Steel Capillary Tube 0.008 – 1.02 0.028 To 10

 

Type 321 Rectangular Pipe Surface Finish

Cold drawn CD Polished P
Bright drawn BD Slit rolled edge SRE
Centreless ground CG Hot finished HF
Cold finished CF Hot rolled annealed and pickled HRAP
Peeled and turned P And T Rough turned/peeled RT
Smooth turned ST Peeled and reeled PR

 

SS 321 Pipe Schedule Chart

Outer/Diameter Stainless Steel 321 Seamless Pipes Wall Thickness Weight Outer/Diameter Wall Thickness Stainless Steel 321 Seamless Pipes Weight
(Inches) (millimeter) metre (Kilogram) (Inches) (millimeter) metre (Kilogram)
1/2 1.50 0.42 1 1/4 1.50 1.13
5/8 1.20 0.44 1 3/8 1.20 1.02
5/8 1.50 0.54 1 1/2 1.20 1.11
3/4 1.20 0.53 1 1/2 1.50 1.38
3/4 1.50 0.66 1 1/2 2.00 1.81
3/4 1.20 0.63 1 3/4 1.50 1.62
7/8 1.50 0.78 2 1.20 1.49
7/8 2.00 1.01 2 1.50 1.85
1 1.20 0.73 2 2.00 2.40
1 1.50 0.90 2 1/2 1.50 2.34
1 2.00 1.17 3 1.50 2.81
1 1/8 1.50 1.02 4 3.00 7.41
1 1/4 1.20 0.92

 

321 Stainless Steel Pipe Size Chart In MM

Outside Diameter (O.D.) Of Stainless Steel 321 Seamless Pipes In
Millimeter
Weight Of SS 321 Pipes In
Millimeter
Inches
Schedule
Kilogram/ Meter
13.72
1.65
1/4
10S
0.50
13.72
2.24
1/4
40S
0.64
13.72
3.02
1/4
80S
0.81
17.15
1.65
3/8
10S
0.64
17.15
2.31
3/8
40S
0.86
17.15
3.20
3/8
80S
1.12
21.34
2.11
1/2
10S
1.02
21.34
2.77
1/2
40S
1.29
21.34
3.73
1/2
80S
1.65
26.67
2.11
3/4
10S
1.30
26.67
2.87
3/4
40S
1.71
26.67
3.91
3/4
80S
2.23
33.40
2.77
1
10S
2.13
33.40
3.38
1
40S
2.54
33.40
4.55
1
80S
3.29
33.40
6.352)
1
160
4.30
42.16
2.77
1¼
10S
2.73
42.16
3.56
1¼
40S
3.44
42.16
4.85
1¼
80S
4.53
42.16
6.352)
1¼
160
5.69
48.26
2.77
1½
10S
3.16
48.26
3.68
1½
40S
4.11
48.26
5.08
1½
80S
5.49
60.33
2.77
2
10S
3.99
60.33
3.91
2
40S
5.52
60.33
5.54
2
80S
7.60
60.33
8.742)
2
160
11.29
73.03
3.05
2½
10S
5.35
73.03
5.16
2½
40S
8.77
73.03
7.01
2½
80S
11.59
88.90
3.05
3
10S
6.56
88.90
5.49
3
40S
11.47
88.90
7.62
3
80S
15.51
88.90
11.132)
3
160
21.67
101.60
3.05
3½
10S
7.53
101.60
5.74
3½
40S
13.78
101.60
8.08
3½
80S
18.92
114.30
3.05
4
10S
8.50
114.30
6.02
4
40S
16.32
114.30
8.56
4
80S
22.67
114.30
13.492)
4
160
34.05
141.30
6.55
5
40S
22.10
141.30
9.53
5
80S
31.44
141.30
15.882)
5
160
49.87
168.28
3.4
6
10S
14.04
168.28
7.11
6
40S
28.69
168.28
10.97
6
80S
43.21
168.28
14.27
6
120
54.75
168.28
18.262)
6
160
68.59
219.08
8.18
8
40S
43.20
219.08
12.7
8
80S
65.63
219.08
18.23
8
120
91.30
219.08
23.012)
8
160
112.97

 

Marking On Pipe A312 Tp321

  • Stainless Steel 321 Seamless Pipes Specification
  • Heat Number
  • Schedule (Wall Thickness)
  • Nominal tube Size
  • Manufacturer’s Symbol/ Name
  • Grade
  • Manufacturing Method

 

Stainless Stee 321 Seamless Pipe Thickness Calculation

Nominal Stainless Steel 321 Seamless Pipes Size (NPS) Outside Diameter In Inches Schedule 10s Schedule 10 Schedule 40s & Std Schedule 40 Schedule 80s & E.H. Schedule 80 Schedule 160
1/8 .405 .049 .049 .068 .068 .095 .095
1/4 .540 .065 .065 .088 .088 .119 .119
3/8 .675 .065 .065 .091 .091 .126 .126
1/2 .840 .083 .083 .109 .109 .147 .147 .187
3/4 1.050 .083 .083 .113 .113 .154 .154 .218
1 1.315 .109 .109 .133 .133 .179 .179 .250
1 1/4 1.660 .109 .109 .140 .140 .191 .191 .250
1 1/2 1.900 .109 .109 .145 .145 .200 .200 .281
2 2.375 .109 .109 .154 .154 .218 .218 .343
2 1/2 2.875 .120 .120 .203 .203 .276 .276 .375
3 3.500 .120 .120 .216 .216 .300 .300 .437
3 1/2 4.000 .120 .120 .226 .226 .318 .318
4 4.500 .120 .120 .237 .237 .337 .337 .531
4 1/2 5.000 .247 .355
5 5.563 .134 .134 .258 .258 .375 .375 .625
6 6.625 .134 .134 .280 .280 .432 .432 .718
7 7.625 .301 .500
8 8.625 .148 .148 .322 .322 .500 .500 .906
9 9.625 .342 .500
10 10.750 .165 .165 .365 .365 .500 .593 1.125
11 11.750 .375 .500
12 12.750 .180 .180 .375 .406 .500 .687 1.312
14 14.000 .188 .250 .375 .437 .500 .750 1.406
16 16.000 .188 .250 .375 .500 .500 .843 1.593
18 18.000 .188 .250 .375 .562 .500 .937 1.781

 

Material Testing of SS 321H Erw Tubing

  • Intergranular Corrosion (IGC) Test
  • Hardness Test
  • Positive Material Identification – PMI Testing
  • Mechanical Testing Such as Tensile of Area
  • Micro and MacroTest
  • Pitting Resistance Test
  • Chemical Analysis – Spectro Analysis
  • Flaring Test
  • Flattening Test

 

Standard Dimensions Of SS 321 Rectangular Pipe

Dimensions Of Stainless Steel 321 Rectangular Pipe Wall Thickness Weight Table Dimensions Of Stainless Steel 321 Rectangular Pipe Wall Thickness Weight Table
(millimeter) (millimeter) metre (kilogram) (millimeter) (millimeter) metre (kilogram)
12.7 x 12.7 1.20 0.44 40 x40 1.20 1.49
12.7 x 12.7 1.50 0.55 40 x40 1.50 1.85
15 x 15 1.20 0.53 40 x40 2.00 2.45
15 x 15 1.50 0.65 40 x40 3.00 3.75
20 x 20 1.20 0.71 50 x50 1.50 2.32
20 x 20 1.50 0.88 50 x50 2.00 3.08
20 x 20 2.00 1.19 50 x50 3.00 4.65
25 x 25 1.20 0.92 60 x60 2.00 3.71
25 x 25 1.50 1.14 60 x60 3.00 5.49
25 x 25 2.00 1.49 70 x70 3.00 6.53
25 x 25 3.00 2.20 80 x80 2.00 4.98
30 x 30 1.20 1.10 80 x80 3.00 7.53
30 x 30 1.50 1.37 100 x 100 2.00 6.40
30 x 30 2.00 1.84 100 x 100 3.00 9.53
30 x 30 3.00 2.72

 

Packaging Of Stainless Steel 321 Seamless Pipe

  • waterproof paper and plastic coverage
  • Wooden pallets or cases
  • Or as per customer need

Features of Siddhagiri Packaging :

  • - Packaging list (laminated) placed with box/crate.
  • - End of Stainless Steel 321 ASTM A312 Seamless Pipe protected by plastic caps.
  • - Each bundle covered with plastic for protection against extreme weather.
  • - Bundles strapped with plastic strips.
  • - Each radius of U-Bend tube separated by a separator.

 

Weight Chart Of 321 SS Seamless Pipe

Size of Stainless Steel 321 Seamless Pipes Outside Diameter In inches Stainless Steel 321 Seamless Pipes Schedules A.S.A
80 DBL E.H 5s 60 40s & Std. 5 10 40 10s 120 80s & E.H 160
1/8 .0405 0.095.03145       .0068.02447 .0035.01383 .0049.01863 068.02447 .0049.01863   0.095.03145  
1/4 .0540 .0119.05351       .0088.04248 .0049.02570 .0065.03297 088.04248 .0065.03297   .0119.05351  
3/8 .0675 .0126.07338       .0091.05676 .0049.03276 .0065.04235 .0091.05676 .0065.04235   .0126.07338  
1/2 .0840 .01471.0088 .02941.0714 .0065.05383   .0109.08510 .0065.05383 .0083.06710 .0109.08510 .0083.06710   .01471.0088 .01871.0304
3/4 1.0050 .01541.0474 .03082.0441 .0065.06838   .01131.0131 .0065.06838 .0083.08572 .01131.0131 .0083.08572   .01541.0474 .02181.0937
1 1.0315 .01792.0172 .03583.0659 .0065.08678   .01331.0679 .0065.08678 .01091.0404 .01331.0679 .01091.0404   .01792.0172 .02502.0844
1-1/4 1.0660 .01912.0997 .03825.0214 .00651.0107   .01402.0273 .00651.0107 .01091.0806 .01402.0273 .01091.0806   .01912.0997 .02503.0765
1-1/2 1.0900 .02003.0631 .04006.0408 .00651.0274   .01452.0718 .00651.0274 .01092.0085 .01452.0718 .01092.0085   .02003.0631 .02814.0859
2 2.0375 .02185.0022 .04369.0029 .00651.0604   .01543.0653 .00651.0604 .01092.0638 .01543.0653 .01092.0638   .02185.0022 .03437.0444
2-1/2 2.0875 .02767.0661 .055213.070 .00832.0475   .02035.0793 .00832.0475 .01203.0531 .02035.0793 .01203.0531   .02767.0661 .037510.001
3 3.0500 .030010.025 .060018.058 .00833.0029   .02167.0576 .00833.0029 .01204.0332 .02167.0576 .01204.0332   .030010.025 .043714.032
3-1/2 4.0000 .031812.051 .063622.085 .00833.0472   .02269.0109 .00833.0472 .01204.0973 .02269.0109 .01204.0973   .031812.051  
4 4.0500 .033714.098 .067427.054 .00833.0915 .028112.066 .023710.079 .00833.0915 .01205.0613 .023710.079 .01205.0613 .043719.001 .033714.098 .053122.051
4-1/2 5.0000   .071032.053     .024712.053           .035517.061  
5 5.0563 .037520.078 .075038.055 .01096.0349   .025814.062 .01096.0349 .01347.0770 .025814.062 .01347.0770 .050027.004 .037520.078 .062532.096
6 6.0625 .043228.057 .086453.016 .01097.0585   .028018.097 .01097.0585 .01349.0290 .028018.097 .01349.0290 .056236.039 .043228.057 .071845.030
7 7.0625   .087563.008     .030123.057           .050038.005  

 

Astm A249 Tp 321 Square Pipe Size Chart

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

 

An Indian Manufacturer but Global supplier of Stainless Steel 321 Seamless Pipe, check what and where

Europe, United Arab Emirates (UAE), Romania, Norway Stainless Steel Seamless Pipe ASTM Standard 321 Large Diameter
Philippines, Chile, Canada, Iran 321 Hollow Hexagonal Stainless Steel Seamless Pipe
Malaysia, Egypt, Los Alamos -Mexico Stainless Steel Welded Decorative Pipe 321
Sweden, Netherlands,  Malaysia, Russia En 10204 3.1 AISI 321 Seamless Stainless Steel Pipe
Dammam -KSA, UK, Philippines, Poland ASME SA789 321 Stainless Steel Seamless Pipe
Singapore, United Kingdom -UK, NY 12203 (USA), Malaysia Stainless Steel Seamless Pipe 321
Czechia, Malaysia, Thailand, Japan Food Grade 321 Sanitary Seamless Stainless Steel Tube
Qatar, Singapore, Europe, Malaysia Cold Rolled Stainless Steel Welded Pipe 321 with Stock
 Malaysia, China, Bangladesh, Colombia Industrial ASTM A380 A249 TP321 Seamless Stainless Steel Pipe Tube
South Africa, Philippines, Kuwait, Taiwan Food Grade Polishing SUS 321 Stainless Steel Seamless Pipe
Philippines, Belgium, UK, Indonesia 321 Stainless Steel Seamless Pipe with Bright Finish
Bahrain, Malaysia, Singapore, South Korea 321 Stainless Steel Seamless Pipe 12 Inch Round Pipes
Oman, Thailand, Hong Kong, France 321 Stainless Steel Welded Square Tube Pipe