ASME SA213 TP321 Stainless Steel Tube




SS 321 Tube Supplier, ASTM A213 TP321 Tubes

SS 321 Tube Supplier

Superior Steel Overseas is one of the top most supplier, manufacturer, distributor and exporter of 321 Stainless Steel Seamless Tube and SS 321 Tube which is a heat resistant, titanium stabilized, austenitic alloy that's commonly used for service in the 1000°-1600°F temperature range. ASTM A213 Stainless Steel 321 Seamless Tube is generally considered to have comparable weldability to 304 and 304L stainless with the main difference being the titanium addition which reduces or prevents carbide precipitation during welding. ASTM A213 Stainless Steel 321 Cold Drawn Tube and  ASTM A213 Stainless Steel 321 Heat Exchanger Tube primarily used in applications that involve continuous and intermittent service temperatures within the carbide precipitation range of 800°-1500°F.We supply ASTM A213 SS 321 Tubing that are being designed as per the national and international standard quality of raw materials.ASTM A213 Grade 321 stainless steel tube is the most widely used commercial grade of stainless steel supplied into numerous industry sectors which also referred as WNR 1.4541 Seamless Tube. ASTM A213 321 Seamless Condenser Tubes has oxidation resistant to 1600°F. ASTM A213 Stainless Steel 321 Boiler Tubes  in different sizes, grades and thickness as per customized requirements given by our clients.ASTM A213 SS 321 Square Tube mostly used in Aircraft piston engine manifolds and exhaust stacks,Expansion joints,Thermal oxidizers,Refinery equipment,High temperature chemical process equipment. Also known as UNS S32100 Seamless Tubing, these stainless steels tubes are available at market leading prices. Buy ASME SA213 SS 321 Seamless Tubing and SS 321 Seamless Tube at reasonable price in India from us.

ASTM A213 TP321 Stainless Steel Tube Specification

Specification
ASTM A-213 & Its equivalent ASME, DIN & EN Standard.
Grades
304, 304L, 304H, 304LN, 309S, 310S, 316, 316L, 316H, 316Ti, 317, 317L, 321, 321H, 347, 347H, 410,446
Type
Seamless Ferritic and Austenitic Boiler, Superheater, and Heat-Exchanger Tubes
Outer Diameter Size
1/4” OD, NB to 3” OD, NB sizes
Thickness
1mm to 12mm, SCH 5/5S, 10/10S, 20/20S, 40/40S, 80/80S, 120/120S, 160/160S as per ANSI B36.19/36.10
Length
Up to 6 meters, custom cut lengths
Ends
No.1 Pickled Finish, No.4 finish, BA Finish, Electropolished Seamless Tubes
Delivery Conditions
As Rolled, Formed, Stress Relieved, Annealed, Hardened, Tempered, Cold Draw
Coating
Electropolish, Mechanical Polish, Satin Finish, Passivated
Other Testing
Product Analysis, Transverse Tension Test, Flattening Test, Etching Test, Radiographic Examination, Stabilizing Heat Treatment, Intergranular Corrosion Test, Weld Decay Test, Magnetic Particle Detection, Grain Size Test, NACE 0175, Dual Grade, PWHT (POST WELD HEAT TREATMENT), Flare Test, Bend Test, Hardness Test, Tensile Test etc
Dimension
All Pipes & Tube Is Manufactured and Inspected / Tested to the Relevant standards including ASTM and ASME
Value Added Services
Draw / Expansion / Machining / Sand Blasting / Shot Blasting / Heat Treatment
Packaging
Loose / Bundle / Wooden Pallet / Wooden Box / Plastic Cloth Wraps / Plastic End Caps / Beveled Protector
Material Test Certificate
Manufacturer Test Certificate As Per EN10204 3.1, 3.2 / Laboratory Test Certificate From NABL Approved Lab. / Under Third Party Inspection Agency Like SGS, TUV, DNV, LLOYDS, ABS ETC
Delivery
By Road – Truck / Train, By Sea – Break-bulk Conventional Vessel / FCL (Full Container Load) / LCL (Less Container Load) / 20 Feet Container / 30 Feet Container / 35 Feet Container / High Cube Container / Open Top Container, By Air – Freighter Civil Passenger and Cargo Planes

ASTM A213 321 Tubing Sizes

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

ASTM A213 SS 321 Tube Dimensions

OD inches Ave. Wall inches D/t Ratio ID inches Tube Cross Sectional Area (in2) Internal Area (in2)
0.250 0.020 12.50 0.210 0.0145 0.0346
0.250 0.028 8.93 0.194 0.0195 0.0296
0.250 0.035 7.14 0.180 0.0236 0.0254
0.250 0.049 5.10 0.152 0.0309 0.0181
0.250 0.065 3.85 0.120 0.0378 0.0113
0.375 0.020 18.75 0.335 0.0223 0.0881
0.375 0.028 13.39 0.319 0.0305 0.0799
0.375 0.035 10.71 0.305 0.0374 0.0731
0.375 0.049 7.65 0.277 0.0502 0.0603
0.375 0.065 5.77 0.245 0.0633 0.0471
0.500 0.020 25.00 0.460 0.0302 0.1662
0.500 0.028 17.86 0.444 0.0415 0.1548
0.500 0.035 14.29 0.430 0.0511 0.1452
0.500 0.049 10.20 0.402 0.0694 0.1213
0.500 0.065 7.69 0.370 0.0888 0.1075
0.500 0.083 6.02 0.334 0.1087 0.0876
0.625 0.020 31.25 0.585 0.0380 0.2688
0.625 0.028 22.32 0.569 0.0525 0.2543
0.625 0.035 17.86 0.555 0.0649 0.2419
0.625 0.049 12.76 0.527 0.0887 0.2181
0.625 0.065 9.62 0.495 0.1144 0.1924
0.625 0.083 7.53 0.459 0.1413 0.1655
0.625 0.095 6.58 0.435 0.1582 0.1486
0.625 0.109 5.73 0.407 0.1767 0.1301
0.750 0.028 26.79 0.694 0.0635 0.3783
0.750 0.035 21.43 0.680 0.0786 0.3632
0.750 0.049 15.31 0.652 0.1079 0.3339
0.750 0.065 11.54 0.620 0.1399 0.3019
0.750 0.083 9.04 0.584 0.1739 0.2679
0.750 0.095 7.89 0.560 0.1955 0.2463
0.750 0.109 6.88 0.532 0.2195 0.2223
0.750 0.120 6.25 0.510 0.2375 0.2043
0.875 0.020 43.75 0.835 0.0537 0.5476
0.875 0.028 31.25 0.819 0.0745 0.5268
0.875 0.035 25.00 0.805 0.0924 0.5090
0.875 0.049 17.86 0.777 0.1272 0.4742
0.875 0.065 13.46 0.745 0.1654 0.4359
0.875 0.083 10.54 0.709 0.2065 0.3948
0.875 0.095 9.21 0.685 0.2328 0.3685
0.875 0.109 8.03 0.657 0.2623 0.3390
0.875 0.120 7.29 0.635 0.2846 0.3167
1.000 0.028 35.71 0.944 0.0855 0.6999
1.000 0.035 28.57 0.930 0.1061 0.6793
1.000 0.049 20.41 0.902 0.1464 0.6390
1.000 0.065 15.38 0.870 0.1909 0.5945
1.000 0.083 12.05 0.834 0.2391 0.5463
1.000 0.095 10.53 0.810 0.2701 0.5153
1.000 0.109 9.17 0.782 0.3051 0.4803
1.000 0.120 8.33 0.760 0.3318 0.4536
1.000 0.134 7.46 0.732 0.3646 0.4208
1.250 0.035 35.71 1.180 0.1336 1.0936
1.250 0.049 25.51 1.152 0.1849 1.0423
1.250 0.065 19.23 1.120 0.2420 0.9852
1.250 0.083 15.06 1.084 0.3043 0.9229
1.250 0.095 13.16 1.060 0.3447 0.8825
1.250 0.109 11.47 1.032 0.3907 0.8365
1.250 0.120 10.42 1.010 0.4260 0.8012
1.250 0.134 9.33 0.982 0.4698 0.7574
1.500 0.035 42.86 1.430 0.1611 1.6061
1.500 0.049 30.61 1.402 0.2234 1.5438
1.500 0.065 23.08 1.370 0.2930 1.4741
1.500 0.083 18.07 1.334 0.3695 1.3977
1.500 0.095 15.79 1.310 0.4193 1.3478
1.500 0.109 13.76 1.282 0.4763 1.2908
1.500 0.120 12.50 1.260 0.5202 1.2469
1.500 0.134 11.19 1.232 0.5750 1.1921
1.500 0.148 10.14 1.204 0.6286 1.1385
1.750 0.035 50.00 1.680 0.1886 2.2167
1.750 0.049 40.82 1.902 0.3003 2.8413
1.750 0.065 26.92 1.620 0.3441 2.0612
1.750 0.083 21.08 1.584 0.4347 1.9706
1.750 0.095 18.42 1.560 0.4939 1.9113
1.750 0.109 16.06 1.532 0.5619 1.8433
1.750 0.120 14.58 1.510 0.6145 1.7908
1.750 0.134 13.06 1.482 0.6803 1.7250
1.750 0.148 11.82 1.454 0.7449 1.6604
1.750 0.165 10.61 1.420 0.8216 1.5837
2.000 0.035 57.14 1.930 0.2161 2.9255
2.000 0.049 40.82 1.902 0.3003 2.8413
2.000 0.065 30.77 1.870 0.3951 2.7465
2.000 0.083 24.10 1.834 0.4999 2.6417
2.000 0.095 21.05 1.810 0.5685 2.5730
2.000 0.109 18.35 1.782 0.6475 2.4941
2.000 0.120 16.67 1.760 0.7087 2.4328
2.000 0.134 14.93 1.732 0.7855 2.3561
2.000 0.148 13.51 1.704 0.8611 2.2805
2.000 0.165 12.12 1.670 0.9512 2.1904

ASTM A213 SS 321 Seamless Tube Chemical Composition

Grade C Mn Si P S Cr Mo Ni N Other
321 min. 
max
– 
0.08
2.00 0.75 0.045 0.030 17.0 
19.0
9.0 
12.0
0.10 Ti=5(C+N) 
0.70

ASTM A213 TP321 Stainless Steel Seamless Tube Physical Properties

Grade Density
(kg/m3)
Elastic Modulus
(GPa)
Mean Co-eff of Thermal Expansion (µm/m/°C) Thermal Conductivity
(W/m.K)
Specific Heat 0-100°C
(J/kg.K)
Elec Resistivity
(nΩ.m)
0-100°C 0-315°C 0-538°C At 100°C At 500°C
321 8027 193 16.6 17.2 18.6 16.1 22.2 500 720

ASTM A213 Stainless Steel 321 Seamless Tube Mechanical Properties

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
321 515 205 40 95 217

ASTM A213 SS 321 Equivalent

Grade UNS No Old British Euronorm Swedish SS Japanese JIS
BS En No Name
321 S32100 321S31 58B, 58C 1.4541 X6CrNiTi18-10 2337 SUS 321

SS 321 Tube ASTM A213 Tolerances

Specification Allowable Outside Diameter Variation in mm Allowable Wall Thickness Variation Exact Length Tolerance in mm Testing
Nominal Diameter Over Under %Over %Under Over Under
ASTM-A213 TP321
Seamless Boiler
Superheater and 
Heat Exchanger Tubes
Under 25.4 .1016 .1016 +20 -0 3.175 0 Flattening Test
25.4-38.1 incl .1524 .1524 +22 -0 3.175 0 Tension Test
38.1-50.8 excl .2032 .2032 +22 -0 3.176 0 Flare Test
50.8-63.5 excl .254 .254 +2 -0 4.46 0 Hardness Test
63.5-76.2 excl .3218 .3218 +22 -0 4.76 0 100% Hydrostatic test
76.2-101.6 incl .381 .381 +22 -0 4.76 0 Refer to ASTM A-450
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