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ASTM A269 TP321 Tube
What is ASTM A269 TP321 seamless tube?
Grade 321 is a stabilized austenitic ss alloy with the addition of titanium in the chemical composition. It exhibits excellent corrosion resistance, especially in high temperature environments. Thus, the ASTM A269 TP321 Seamless Tube is suitable for industries like petrochemical, chemical processing, and aerospace.
The specifications have sizes ranging from 1/8" to 5" in OD and wall thicknesses between 0.015" to 0.320". The seamless tube is manufactured by hot or cold drawing procedures.
ASTM A269 TP321 Seamless and Welded Tube manufacturer in India
What is the difference between ASTM A269 TP321 bright annealing tube and hardening?
Bright annealing is a heat treatment process wherein the tube is heated to a specific temperature in a controlled atmosphere. It helps to prevent oxidation and achieve a smooth, polished surface finish. SA 269 Gr 321 Bright Annealed Tubes have improved corrosion resistance and appearance. During the process, the austenitic structure of the ss is retained, and the tubing becomes softer and more ductile.
Hardening involves heating the ASTM A269 Grade 321 Condenser Tube to a higher temperature and then rapidly cooling it to transform its microstructure. This results in a harder and stronger structure. The process helps to increase the hardness and strength of the tubing.
PED Approved ASTM A269 Grade 321 Condenser Tube supplier in Gujarat, check specification of SA 269 Gr 321 Bright Annealed Tubes here
ASTM A269 TP321 Seamless Tube
ASTM A269 TP321 Tube
A269 TP321 Cold Drawn Seamless Tube
Does SA 269 TP 321 welded tube rust?
ASTM A269 Grade TP321 ERW Tube shows excellent corrosion resistance in various environments. Under normal conditions, the tubes should not rust easily. The presence of chromium and other alloying elements forms a passive oxide layer on the surface. This acts as a protective barrier that prevents the underlying metal from reacting with the surrounding environment.
However, ensure the ASTM A269 Gr TP321 Heater Tubes are used and maintained properly to preserve their corrosion resistant properties. If exposed to aggressive chemicals, the passive layer may become compromised causing potential corrosion over time.
Supplier of ASTM A269 Grade TP321 ERW Tube and SA 269 UNS S32100 Seamless tubing for heat exchanger and boiler industry
Table of Contents
- Specifications of ASTM A269 TP321 seamless tube
- Types of ASTM A269 TP321 tube
- A269M TP321 cold drawn seamless tube chemical composition
- SA 269 TP 321 welded tubes mechanical properties
- ASTM A269 Grade TP321 ERW tubes equivalent
- SA 269 Grade TP321 coil tubing physical properties
- ASTM A269 Grade 321 condenser tube pressure rating
- Hardness of SA 269 Gr 321 bright annealed tubes
- ASME SA 269 321 heat exchanger tubes tolerance
- ASTM A269 321 tubing sizes
Specifications of ASTM A269 TP321 seamless tube
| Outside Diameter | Production | Wall Thickness |
|---|---|---|
| 6.00mm-830mm | Seamless | 0.5mm-48mm |
| Thickness | Processing Service | Testing |
| 0.8 MM to 4 MM |
|
|
| Sizes | Process Method | Surface finishes |
1/8” NB to 24” NB | Cold drawn/welded | Bright Annealed,unpolished |
| Designation | Delivery Condition | Shapes |
| ASTM A269,ASME SA269 |
|
|
Searching for ready stock of ASTM A269 321 Tubing in Gujarat? Wide range of SA 269 Grade TP321 Coil Tubing as per ASTM standard
Types of ASTM A269 TP321 tube
ASTM A269 321 Tubing
SA 269 TP 321 Welded Tube
ASTM A269 Grade TP321 ERW Tube
SA 269 Grade TP321 Coil Tubing
ASTM A269 Grade 321 Condenser Tube
SA 269 Gr 321 Bright Annealed Tubes
ASTM A269 Gr TP321 Heater Tubes
ASME SA 269 321 Heat Exchanger Tubes
ASTM A269 TP 321 Stainless Steel Polish Tube
Supply A269M TP321 Cold Drawn Seamless Tube and ASME SA 269 321 Heat Exchanger Tubes with third party inspection reports, available in custom sizes
A269M TP321 cold drawn seamless tube chemical composition
| Grade | S | C | Si | Mn | P | Cr | Mo | N | Ni | Other |
|---|---|---|---|---|---|---|---|---|---|---|
| 321H | 0.030 | 0.04 0.10 | 0.75 | 2.00 | 0.045 | 17.0 19.0 | – | – | 9.0 12.0 | Ti=4(C+N) 0.70 |
| 321 | 0.030 | – 0.08 | 0.75 | 2.00 | 0.045 | 17.0 19.0 | – | 0.10 | 9.0 12.0 | Ti=5(C+N) 0.70 |
SA 269 TP 321 welded tubes mechanical properties
| Grade | Yield Strength 0.2% Proof (MPa) minimum | Tensile Strength (MPa) minimum | Elongation (% in 50 milimeter) minimum | Hardness | |
|---|---|---|---|---|---|
| Rockwell B (HR B) maximum | Brinell (HB) maximum | ||||
| 321 | 205 | 515 | 40 | 95 | 217 |
| 321H | 205 | 515 | 40 | 95 | 217 |
ASTM A269 Grade TP321 ERW tubes 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 |
| 321H | S32109 | 321S51 | – | 1.4878 | X10CrNiTi18-10 | – | SUS 321H |
SA 269 Grade TP321 coil tubing physical properties
| Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (m/m/0C) | Thermal Conductivity (W/m.K) | |||
|---|---|---|---|---|---|---|---|
| 0-1000C | 0-3150C | 0-5380C | at 1000C | at 5000C | |||
| 321 | 8027 | 193 | 16.6 | 17.2 | 18.6 | 16.1 | 22.2 |
ASTM A269 Grade 321 condenser tube pressure rating
| Outer Dia | Wall Thickness (inches) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| (inches) | 0.018 | 0.024 | 0.020 | 0.028 | 0.035 | 0.047 | 0.063 | 0.059 | .126 | 0.079 | 0.098 |
| 3/16 | 3726.5 | 5118.5 | 4176.0 | 6104.5 | 8207.0 | 11745.0 | |||||
| 1/4 | 2726.0 | 3726.5 | 3059.5 | 4408.0 | 5858.0 | 8207.0 | 11730.5 | 10802.5 | |||
| 9/32 | 2407.0 | 3277.0 | 2697.0 | 3871.5 | 5118.5 | 7134.0 | 10106.5 | 9338.0 | |||
| 5/16 | 2146.0 | 2914.5 | 2407.0 | 3451.0 | 4553.0 | 6307.5 | 8859.5 | 8192.5 | 11730.5 | ||
| 3/8 | 1783.5 | 2407.0 | 1986.5 | 2842.0 | 3726.5 | 5118.5 | 7134.0 | 6612.0 | 9338.0 | ||
| 1/2 | 1319.5 | 1783.5 | 1464.5 | 2088.0 | 2726.0 | 3726.5 | 5118.5 | 4756.0 | 6612.0 | ||
| 5/8 | 1406.5 | 1160.0 | 1653.0 | 2146.0 | 2914.5 | 3987.5 | 3712.0 | 5118.5 | 6612.0 | ||
| 3/4 | 1174.5 | 971.5 | 1363.0 | 1783.5 | 2407.0 | 3277.0 | 3059.5 | 4176.0 | 5365.0 | ||
| 7/8 | 1000.5 | 826.5 | 1174.5 | 1508.0 | 2044.5 | 2769.5 | 2581.0 | 3523.5 | 4509.5 | ||
| 1 | 870.0 | 725.0 | 1015.0 | 1319.5 | 1783.5 | 2407.0 | 2247.5 | 5118.5 | 3059.5 | 3886.0 | |
| 1¼ | 696.0 | 812.0 | 1044.0 | 1406.5 | 1899.5 | 1783.5 | 3987.5 | 2407.0 | 3059.5 | ||
| 1½ | 667.0 | 870.0 | 1174.5 | 1566.0 | 1464.5 | 3277.0 | 1986.5 | 2508.5 | |||
| 1¾ | 580.0 | 739.5 | 1000.5 | 1334.0 | 1247.0 | 2769.5 | 1682.0 | 2131.5 | |||
| 2 | 652.5 | 870.0 | 1174.5 | 1087.5 | 2407.0 | 1464.5 | 1856.0 | ||||
| 2½ | 522.0 | 696.0 | 928.0 | 870.0 | 1899.5 | 1174.5 | 1464.5 | ||||
| 3 | 580.0 | 768.5 | 725.0 | 1566.0 | 971.5 | 1218.0 | |||||
| 3½ | 493.0 | 652.5 | 623.5 | 1334.0 | 826.5 | 1044.0 | |||||
| 4 | 435.0 | 580.0 | 536.5 | 1174.5 | 725.0 | 913.5 | |||||
| 5 | 464.0 | 435.0 | 928.0 | 580.0 | 725.0 | ||||||
| 6 | 377.0 | 362.5 | 768.5 | 478.5 | 594.5 | ||||||
| 8 | 290.0 | 261.0 | 580.0 | 362.5 | 449.5 | ||||||
| 10 | 232.0 | 217.5 | 464.0 | 290.0 | 362.5 |
Hardness of SA 269 Gr 321 bright annealed tubes
| Hardness | Value |
|---|---|
| Brinell, HBW | ≤192 |
| Vickers, HV | ≤200 |
| Rockwell, HRB | ≤90 |
ASME SA 269 321 heat exchanger tubes tolerance
| O.D. inch | Tolerance for O.D. " | Tolerance for W.T. % | Tolerance for L, " |
|---|---|---|---|
| O.D.≤0.5“ | ±0.005” | ±15 | +1/8, -0 |
| 0.5"<1.5"< td=""><1.5"<> | ±0.005” | ±10 | +1/8, -0 |
| 1.5"≤O.D.<3.5" | ±0.010” | ±10 | +3/16, 0 |
| 3.5"≤O.D.<5.5" | ±0.015” | ±10 | +3/16, 0 |
| 5.5"≤O.D.<8" | ±0.030” | ±10 | +3/16, -0 |
| 8"≤O.D.<12" | ±0.040” | ±10 | +3/16, -0 |
| 12"≤O.D.<14" | ±0.050” | ±10 | +3/16, -0 |
ASTM A269 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 |
Advantages & uses of A269 TP321 cold drawn seamless tube
Advantages
- A269 TP321 Cold Drawn Seamless Tube shows excellent corrosion resistance, especially in high temperature environments.
- The tubing maintains its strength and integrity at elevated temperatures.
- Cold drawn manufacturing process enhances the ductility and toughness of the tube.
These TP321 seamless cold drawn tubes are used in industries like chemical processing, oil & gas, aerospace and power generation.