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Tubotech Stainless Inc

321 Stainless Steel Tube

321 stainless steel tube

What is 321 Stainless Steel Tube?

321 stainless-steel tube is a kind of austenitic stainless steel regarded for its tremendous high-temperature properties and corrosion resistance alloyed in general with titanium, 321 offers superior balance in improved temperature environments, making it best for applications where heat resistance is essential. The titanium content prevents carbide precipitation during welding, minimizing the risk of intergranular corrosion.

This material is broadly used in diverse industries, which include aerospace, chemical processing, and oil and gas, wherein it withstands harsh conditions. Its resistance to oxidation and scaling at excessive temperatures ensures longevity and reliability in critical applications. The tube can be without difficulty fabricated and welded, making it versatile for diverse engineering tasks.

321 stainless steel tubes available in different shapes and sizes, imparting flexibility in layout and alertness. Their excellent mechanical properties, mixed with resistance to oxidation and acids, cause them to be appropriate for use in heat exchangers, pressure vessels, and exhaust systems. Overall, 321 stainless steel tubes combine sturdiness, performance, and versatility, making them a favored choice for demanding environments where each temperature and corrosion resistance are crucial. Tubotech is One Of the Oldest 321 Stainless Steel Tube Supplier in India

321 Seamless Tube vs Dom

321 seamless tubes and DOM (Drawn Over Mandrel) tubes serve awesome purposes in various industries. 321 seamless tubes are manufactured from strong metal billets, resulting in a sturdy, uniform structure without welds. They are particularly suited for high-temperature and corrosive environments because of their titanium content material, which enhances balance and resistance to intergranular corrosion.

In contrast, DOM tubes start as welded metal however undergo a drawing manner over a mandrel, enhancing their dimensions and surface finish. This method enhances concentricity and normal quality, making DOM tubes perfect for precision programs. Each type offers particular blessings based on unique project necessities.

Table of Contents


Specification of 321 stainless steel tube

ASTM A213 TP321 Seamless and Welded Tube Supplier in India

321 Stainless Steel Tube Specifications

321 stainless steel tube specification

 

 

 

ASTM A213 TP321 Welded Tube Size

ASTM A213 TP321 Welded Tube Size

  • Length: Up to 26 Meter
  • Thickness: .005 to .500"
  • OD: 1/16 to 12"
321 Stainless Steel Seamless Tube Sizes

321 Stainless Steel Seamless Tube Sizes

  • Length:Upto 12 meters
  • OD: 1/16 to 2-3/4"
  • Thickness:.010 to .250"

 

 

WNR 1.4541 Capillary Tube Dimensions

WNR 1.4541 Capillary Tube Dimensions

  • OD: 0.4 - 16 mm
  • Length: 0.5 -12 meter
  • Thickness:0.1 - 3 mm
UNS S32100 Coil Tube Sizes

UNS S32100 Coil Tube Sizes

  • Thickness:0.1 -3 mm
  • OD: 0.4- 16 mm
  • Length: 50 - 1000 mm

 

 

SA213 TP321 Tube Material Specification

SA213 TP321 Tube Material Specification

  • ASTM A249
  • ASTM A213
  • ASTM A269
UNS S32100 Round Tube Testing

UNS S32100 Round Tube Testing

  • Eddy Current Testing
  • Hydrostatic Test
  • Ultra Sonic Test (UT)
  • Flaring Test
  • Micro Test
  • Flattening Test
  • Chemical Analysis

 

 

321 Stainless Steel Tube Type

321 Stainless Steel Tube Type

  • Welded
  • ERW
  • Seamless
  • Fabricated
SS 321 Tube Shape

SS 321 Tube Shape

  • Square
  • Honed Tubes
  • Rectangle
  • Round

 

 

AISI 321 Heat Exchanger Tubes Manufacturing Form

AISI 321 Heat Exchanger Tubes Manufacturing Form

  • Round 
  • Straight
  • Coil
  • Hydraulic
SUS 321 Boiler Tubes Technique

SUS 321 Boiler Tubes Technique

  • Hot Formed
  • Precision Rolled
  • Cold Formed

 

 

321 Stainless Tubing Suppliers Standard

321 Stainless Tubing Suppliers Standard

  • ASTM
  • GB
  • AISI
  • SAE
  • JIS
  • DIN
  • ASME
  • AMS
  • EN
INOX 321 Square Tube Surface Finish

INOX 321 Square Tube Surface Finish

  • Bright
  • Pickling
  • Cold Finish
  • Polished
  • Annealing

 

 

Stainless Steel 321 Condenser Tube Certification

Stainless Steel 321 Condenser Tube Certification

  • EN 10204/3.1B
  • 100% Radiography Test Report
  • Raw Materials Certificate
  • Third Party Inspection Report
SS 321 Rectangular Tube Value Added Services

SS 321 Rectangular Tube Value Added Services

  • Expansion, Annealed
  • Sand blasting
  • Machining, Heat treatment
  • Shot blasting
  • CNC laser cutting

 

 

321 SS Tubing Benefits

321 SS Tubing Benefits

  • High mechanical strength
  • Good weldability
  • Good formability
  • Resistant to intergranular corrosion
321 Stainless Tubing Applications

321 Stainless Tubing Applications

  • Heat exchangers
  • Construction materials
  • Railway cars
  • Food processing equipment

Manufacturer of SS 321 Exhaust and Flexible Tubing At Best Price

SS 321 Tube Price List

Size OD in mm WT in mm Price in USD Price in Oman Price in Bahrain
1" 33.4 3.38 $665 OMR 255.99 BHD 250.66
2" 60.3 3.91 $634 OMR 244.06 BHD 238.97
2-1/2" 73 5.16 $626 OMR 240.98 BHD 235.96
3" 88.9 5.49 $621 OMR 239.06 BHD 234.07
4" 114.3 6.02 $612 OMR 235.59 BHD 230.68
6" 168.3 7.11 $612 OMR 235.59 BHD 230.68
8" 219.1 8.18 $612 OMR 235.59 BHD 230.68
10" 273 9.27 $599 OMR 230.59 BHD 225.78

Buy Cut to Size WNR 1.4541 ERW Tube in Mumbai, Refer Size Chart

Sizes of 321 Stainless Steel Flexible Tubing

Metric Imerial Nominal Boor
6mm OD X 1mm 1/8″ OD X 20SWG 1/8″ NB SCH.80
8mm OD X 1mm 3/16″ OD X 20SWG 1/4″NB X SCH.10
8mm OD X 1.5mm 1/4″ OD X 18SWG 1/4″NB X SCH.40
10mm OD X 1mm 3/8″ OD X 16SWG 1/2″ NB SCH.40
10mm OD X 1.5mm  3/8″ OD X 20SWG 1/2″ NB SCH.80
12mm OD X 1mm 1/2″ OD X 18SWG 1/2″ NB SCH.160
15mm OD X 1mm 1/2″ OD X 16SWG 3/4″NB X SCH.10
15mm OD X 2mm 1/2″ OD X 20SWG 3/4″NB X SCH.40
16mm OD X 1.5mm 1/2″ OD X 14SWG 1″NB SCH.5 321
16mm OD X 2mm 17/32″OD X 10SWG 1″NB SCH.10 321
Stockist Of UNS S32100 Rectangular and Square Tube in Hot Rolled and Cold Rolled Form

ASME SA213 TP321 Tube Types

321 stainless steel welded tube

321 stainless steel welded tube

ASTM A213 TP321 condenser tubes

ASTM A213 TP321 condenser tubes

SA213 TP321 seamless tube

SA213 TP321 seamless tube

321 Grit polish tube

321 Grit polish tube

321 Stainless Steel Flexible Tubing

321 Stainless Steel Flexible Tubing

321 SS cold drawn seamless tube

321 SS cold drawn seamless tube

321 stainless steel exhaust tubing

321 stainless steel exhaust tubing

INOX 321 boiler tube

INOX 321 boiler tube

WNR 1.4541 ERW tubes

WNR 1.4541 ERW tubes

321 stainless bright annealed tubes

321 stainless bright annealed tubes

UNS S32100 round tubes

UNS S32100 round tubes

AISI 321 heat exchanger tubes

AISI 321 heat exchanger tubes

Temperature Range of UNS S32100 Round Tubes

Properties (MPa) Temperature Range
600 °C 700 °C 800°C
Creep resistance Rz/1000 200 88 30
Rz/10000 142 48 15
Rz/100000 65 22 10
Creep limit R1/1000 110 45 15
R1/10000 85 30 10

Guage Chart of Stainless Steel 321 Square Tube

GAUGE OD ID WALL OD ID
5TW 0.219 0.199 0.010 ±.002 ±.002
5RW 0.219 0.189 0.015 ±.002 ±.003
6TW 0.203 0.183 0.010 ±.001 ±.002
6RW 0.203 0.173 0.015 ±.001 ±.003
7XT 0.180 0.166 0.007 ±.001 ±.002
7TW 0.180 0.160 0.010 ±.001 ±.002
7RW 0.180 0.150 0.015 ±.001 ±.003
8XT 0.165 0.150 0.0075 ±.001 ±.0025
8TW 0.165 0.145 0.010 ±.001 ±.002
8RW 0.165 0.135 0.015 ±.001 ±.003
9XT 0.148 0.135 0.0065 ±.001 ±.002
9TW 0.148 0.128 0.010 ±.001 ±.002
9RW 0.148 0.118 0.015 ±.001 ±.003
10XT 0.134 0.118 0.008 ±.001 ±.002
10TW 0.134 0.114 0.010 ±.001 ±.002
10RW 0.134 0.106 0.014 ±.001 ±.002
11XT 0.120 0.106 0.007 ±.001 ±.002

AISI 321 Welded Tube Dimensions

Outer Dia inches D/t Ratio Ave. Wall inches Inner Dia inches Internal Area (inch2) Tubes Cross Sectional Area (inch2)
0.625 17.86 0.035 0.555 0.2419 0.0649
0.625 12.76 0.049 0.527 0.2181 0.0887
0.625 9.62 0.065 0.495 0.1924 0.1144
0.625 7.53 0.083 0.459 0.1655 0.1413
0.625 6.58 0.095 0.435 0.1486 0.1582
0.625 5.73 0.109 0.407 0.1301 0.1767
0.750 26.79 0.028 0.694 0.3783 0.0635
0.750 21.43 0.035 0.680 0.3632 0.0786
0.750 15.31 0.049 0.652 0.3339 0.1079
0.750 11.54 0.065 0.620 0.3019 0.1399
0.750 9.04 0.083 0.584 0.2679 0.1739
0.750 7.89 0.095 0.560 0.2463 0.1955
0.750 6.88 0.109 0.532 0.2223 0.2195
0.750 6.25 0.120 0.510 0.2043 0.2375
0.875 43.75 0.020 0.835 0.5476 0.0537
0.875 31.25 0.028 0.819 0.5268 0.0745
0.875 25.00 0.035 0.805 0.5090 0.0924
0.875 17.86 0.049 0.777 0.4742 0.1272
0.250 12.50 0.020 0.210 0.0346 0.0145
0.250 8.93 0.028 0.194 0.0296 0.0195
0.250 7.14 0.035 0.180 0.0254 0.0236
0.250 5.10 0.049 0.152 0.0181 0.0309
0.250 3.85 0.065 0.120 0.0113 0.0378
0.375 18.75 0.020 0.335 0.0881 0.0223
0.375 13.39 0.028 0.319 0.0799 0.0305
0.375 10.71 0.035 0.305 0.0731 0.0374
0.375 7.65 0.049 0.277 0.0603 0.0502
0.375 5.77 0.065 0.245 0.0471 0.0633
0.500 25.00 0.020 0.460 0.1662 0.0302
0.500 17.86 0.028 0.444 0.1548 0.0415
0.500 14.29 0.035 0.430 0.1452 0.0511
0.500 10.20 0.049 0.402 0.1269 0.0694
0.500 7.69 0.065 0.370 0.1075 0.0888
0.500 6.02 0.083 0.334 0.0876 0.1087
0.625 31.25 0.020 0.585 0.2688 0.0380
0.625 22.32 0.028 0.569 0.2543 0.0525
0.875 13.46 0.065 0.745 0.4359 0.1654
0.875 10.54 0.083 0.709 0.3948 0.2065
0.875 9.21 0.095 0.685 0.3685 0.2328
0.875 8.03 0.109 0.657 0.3390 0.2623
0.875 7.29 0.120 0.635 0.3167 0.2846
1.000 35.71 0.028 0.944 0.6999 0.0855
1.000 28.57 0.035 0.930 0.6793 0.1061
1.000 20.41 0.049 0.902 0.6390 0.1464
1.000 15.38 0.065 0.870 0.5945 0.1909
1.000 12.05 0.083 0.834 0.5463 0.2391
1.000 10.53 0.095 0.810 0.5153 0.2701
1.000 9.17 0.109 0.782 0.4803 0.3051
1.000 8.33 0.120 0.760 0.4536 0.3318
1.000 7.46 0.134 0.732 0.4208 0.3646
1.250 35.71 0.035 1.180 1.0936 0.1336
1.250 25.51 0.049 1.152 1.0423 0.1849
1.250 19.23 0.065 1.120 0.9852 0.2420
1.250 15.06 0.083 1.084 0.9229 0.3043
1.250 13.16 0.095 1.060 0.8825 0.3447
1.250 11.47 0.109 1.032 0.8365 0.3907
1.250 10.42 0.120 1.010 0.8012 0.4260
1.250 9.33 0.134 0.982 0.7574 0.4698
1.500 42.86 0.035 1.430 1.6061 0.1611
1.500 30.61 0.049 1.402 1.5438 0.2234
1.500 23.08 0.065 1.370 1.4741 0.2930
1.500 18.07 0.083 1.334 1.3977 0.3695
1.500 15.79 0.095 1.310 1.3478 0.4193
1.500 13.76 0.109 1.282 1.2908 0.4763
1.500 12.50 0.120 1.260 1.2469 0.5202
1.500 11.19 0.134 1.232 1.1921 0.5750
1.500 10.14 0.148 1.204 1.1385 0.6286
1.750 50.00 0.035 1.680 2.2167 0.1886
1.750 40.82 0.049 1.902 2.8413 0.3003
1.750 26.92 0.065 1.620 2.0612 0.3441
1.750 21.08 0.083 1.584 1.9706 0.4347
1.750 18.42 0.095 1.560 1.9113 0.4939
1.750 16.06 0.109 1.532 1.8433 0.5619
1.750 14.58 0.120 1.510 1.7908 0.6145
1.750 13.06 0.134 1.482 1.7250 0.6803
1.750 11.82 0.148 1.454 1.6604 0.7449
1.750 10.61 0.165 1.420 1.5837 0.8216
2.000 57.14 0.035 1.930 2.9255 0.2161
2.000 40.82 0.049 1.902 2.8413 0.3003
2.000 30.77 0.065 1.870 2.7465 0.3951
2.000 24.10 0.083 1.834 2.6417 0.4999
2.000 21.05 0.095 1.810 2.5730 0.5685
2.000 18.35 0.109 1.782 2.4941 0.6475
2.000 16.67 0.120 1.760 2.4328 0.7087
2.000 14.93 0.134 1.732 2.3561 0.7855
2.000 13.51 0.148 1.704 2.2805 0.8611
2.000 12.12 0.165 1.670 2.1904 0.9512

321 Stainless Steel Exhaust Tubing Tolerance Chart

OD milimeter Tolerances OD, milimeter   Wall thickness %
<6-4.76 +/-0.10/-0 +/-10
<4.76-2.38 +0.08/-0 +/-10
<2.38 +0.05/-0 +/-10

Application of SUS 321 ERW Tube

SS 321 Tube Application

ASTM A213 TP321 Tubing Weight Chart

Dimension 18 SWG 10 SWG 19 SWG 14 SWG 16 SWG 12 SWG
(1.2 MM) (3.2 MM) (1.0 MM) (2.1 MM) (1.65 MM) (2.6 MM)
OD Size WeighMTR WeightMTR WeightMTR WeighYMTR WeightMTR WeighMTR
88.9 31/2" 2.610 6.802 2.180 4.521 3.571 5.566
50.8 2" 1.476 3.778 1.235 2.537 2.012 3.108
12.7 1/2" 0.342 0.754 0.290 0.552 0.452 0.651
19.05 3/4" 0.531 1.258 0.448 0.883 0712 4.061
31.75 11/4" 0.909 2.266 0.763 1.544 1.232 1.880
25.4 1" 0.720 1.762 0.605 1.214 0.972 1.470
15.875 5/8" 0.437 1.006 0.369 0.718 0.582 0.856
38.1 11/2" 1.098 2770 0.920 1.875 1.492 2.289
63.5 21/2" 1.854 4.786 1.550 3.198 2.531 3.928
76.2 3" 2.232 5.794 1.865 3.860 3.051 4747
101.6 4" 2.988 7.810 2.495 5.183 4.091 6.385.

Difference Between 321 and 316 Stainless Steel

Difference Between 321 and 316 Stainless Steel

Factor 321 Stainless Steel 316 Stainless Steel
Corrosion Resistance Good, Particularly in Hot Conditions. Outstanding, Especially in Chlorides
Chemical Composition Stabilising Titanium Molybdenum to Prevent Corrosion
Toughness Excellent, Just Less Than 316 At Low Temperatures Better Toughness
Weldability Suitable for High Temperatures Applications Excellent, Precipitation With Low Carbide Levels
Applications Chemical Processing, Aerospace Chemical, Marine, Food Processing
Temperature Resistance Better Stability at High Temperatures Good, But Lower Than 321
Cost Typically Less Than 316 Usually Greater Because of Molybdenum
Mechanical Properties Similar Strength High Tensile and Yield Strength

WNR 1.4541 Seamless Tube HSN Code

Product HSN Code
SS 321 Tube 7304

Pressure Rating Of ASTM A213 Grade 321 Welded Tube

Tube Size
(inches)		 Tube Schedule Temperature (°F)
700 200 100 300 650 500 400 600 750
1" 80 2528 3634 4213 3265 2580 2791 3002 2659 2501
1" 40 1824 2629 3048 2362 1867 2019 2171 1924 1810
1" 160 3684 5296 6140 4759 3761 4068 4375 3876 3646
1.5" 80 1909 2744 3182 2466 1949 2108 2267 2009 1889
1.5" 40 1354 1947 2257 1750 1383 1496 1608 1425 1340
1.5" 160 2772 3984 4619 3580 2829 3060 3291 2916 2743
2" 80 1648 2369 2747 2129 1682 1820 1957 1734 1631
2" 40 1141 1640 1902 1474 1165 1260 1355 1201 1129
2" 160 2699 3880 4499 3486 2755 2980 3205 2840 2671
3" 80 1532 2202 2553 1979 1564 1691 1819 1612 1516
3" 40 1084 1558 1806 1400 1106 1196 1287 1140 1072
3" 160 2304 3312 3840 2976 2352 2544 2736 2424 2280
4" 80 1328 1909 2213 1715 1355 1466 1577 1397 1314
4" 40 919 1321 1531 1187 938 1014 1091 967 909
4" 160 2161 3106 3601 2791 2206 2386 2566 2273 2138
5" 80 1189 1709 1981 1535 1213 1312 1411 1250 1176
5" 40 805 1158 1342 1040 822 889 956 847 797
5" 160 2049 2945 3414 2646 2091 2262 2433 2155 2027
6" 80 1148 1650 1913 1483 1172 1267 1363 1208 1136
6" 40 732 1052 1219 945 747 808 869 770 724
6" 160 1973 2836 3289 2549 2014 2179 2343 2076 1953
8" 80 1015 1459 1692 1311 1036 1121 1205 1068 1005
8" 40 644 926 1073 832 657 711 765 678 637
8" 160 1905 2738 3175 2460 1944 2103 2262 2004 1885
10" 80 966 1388 1609 1247 986 1066 1147 1016 956
10" 40 584 840 974 755 596 945 694 615 578
10" 160 1880 2714 3147 2439 1927 2085 2242 1986 1868

SA 213 Gr 321 ERW Tube Stock List

Wall Thickness in mm Outside Diameter (in mm)
0.5 to 30 10*20 to 100*200
0.8 to 30 6 to 430
0.5 to 30 6 to 630
0.5 to 30 6 to 630
0.5 to 3.0 16 to 85
0.5 to 2.0 13 to 85
0.5 to 30 12.7* 12.7 to 300* 300
0.5 to 30 12.7 to 250
0.5 to 2.0 20 to 200
1.0 to 5 12.5 to 203.2
0.5 to 2.0 22*0.7 to 108*2.0
0.08 to 1.2 0.28 to 10

Schedule Chart Of INOX 321 Square Tube

NB Sizes Sch 80 Sch 10 Sch 5 Sch 40 Sch 160
1/4" √ √ √ √
1/8" √ √ √ √
1/2" √ √ √ √ √
3/8" √ √ √ √
1" √ √ √ √ √
3/4" √ √ √ √ √
1 1/2" √ √ √ √ √
6" √ √ √ √
1 1/4" √ √ √ √ √
2 1/2" √ √ √ √ √
2" √ √ √ √ √
4" √ √ √ √ √
3" √ √ √ √ √
5" √ √ √ √
Ready Stock Of AISI 321 Boiler and Heat Exchanger Tube in Both Coil and Straight Form

Ready Stock Of SS 321 Tube For Sale

As 321 Stainless Steel Tube Supplier in India Offer Ready Stock For Immediate Dispatch

AISI 321 Stainless Steel Tube 1 Sch40s

AISI 321 Stainless Steel Tube 1" Sch40s

321 Polished Stainless Steel Sanitary Tubing

321 Polished Stainless Steel Sanitary Tubing

AISI 321 6X1.0X6000mm Small Stainless Steel Seamless Tube

AISI 321 6X1.0X6000mm Small Stainless Steel Seamless Tube

321 Stainless Steel Hydraulic Tube

321 Stainless Steel Hydraulic Tube

Cold Rolled Welded Stainless Steel 321 Round Tube

Cold Rolled Welded Stainless Steel 321 Round Tube

40mm 321 Stainless Steel Special-Shaped Tube

40mm 321 Stainless Steel Special-Shaped Tube

321 SS Tubing Delivery Time As Per Country

Price Variation 5%
Country Time in Days
South Africa 25-30
Qatar 7
USA 40-60
Uk 30
Saudi Arabia 7
Italy 30
UAE 5 days
Malaysia 10
Philippines 14
France 30
Indonesia 9
Bahrain 9
Oman 5
Kuwait 10
Azerbaijan 30-45
Singapore 8
Egypt 18
Libya 45-60
Turkey 21
Nigeria 30
Poland 45
Germany 20
Finland 45
Norway 45
Sweden 45
Kazakhstan 45-60
Nepal 7
Cambodia 9
Vietnam 10
Thailand 7
Australia 21
Russia 20
Kenya 19
Japan 7
Sudan 30
Norway 45
Yemen 21
Jordan 21
Algeria 45
Cyprus 45
Angola 45

ASTM A213 TP321 Condenser Tubes Chemical Composition

321 Stainless Steel

Mn 2.0%

C 0.08%

Si 1.0%

P 0.045%
S 0.030%

N 0.10%

Cr 17.00 - 19.00%

Ni 9.00 - 12.00%

SA213 TP321 Material Mechanical Properties

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

Equivalent of 321 Stainless Steel Pipe

- North America Russia Japan Europe
STANDARD UNS WERKSTOFF NR. JIS EN
SS 321 S32100 1.4541 SUS 321 X6CrNiTi18-10

SA 213 TP 321 Seamless Tube Physical Properties

Grade Elastic Modulus (GPa) Density (kg/m3) Mean Coefficient of Thermal Expansion (m/m/0C) Specific Heat 0-1000C (J/kg.K) Thermal Conductivity (W/m.K) Electrical Resistivity (n.m)
0-1000C 0-3150C 0-5380C at 1000C at 5000C
321 193 8027 16.6 17.2 18.6 500 16.1 22.2 720