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ASTM A269 TP321 Tube

ASTM A269 TP321 Seamless and Welded Tube Manufacturer in India

ASTM A269 TP321 tube

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.

ASTM A269 TP321 seamless tube

ASTM A269 TP321 seamless tube

ASTM A269 TP321 polished tube

ASTM A269 TP321 polished tube

A269 TP321 cold drawn seamless 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.

PED Approved ASTM A269 Grade 321 Condenser Tube Manufacturer in India, Refer Specification

Specifications of astm A269 Tp321 Seamless Tube

 

 

 

 

 

 

 

 

 

 

 

 

ASTM A269 TP321 tube specification

Bright & Solution Annealed ASTM A269 321 Tubing in Straight / U Shape/ Coil Form for Boilers

Types of ASTM A269 TP321 Tube

ASTM A269 321 seamless tubing

ASTM A269 321 seamless tubing

SA 269 TP 321 welded tube

SA 269 TP 321 welded tube

ASTM A269 Grade TP321 ERW tube

ASTM A269 Grade TP321 ERW tube

SA 269 Grade TP321 coil tubing

SA 269 Grade TP321 coil tubing

ASTM A269 Grade 321 condenser tube

ASTM A269 Grade 321 condenser tube

SA 269 Gr 321 bright annealed tubes

SA 269 Gr 321 bright annealed tubes

ASTM A269 Gr TP321 heater tubes

ASTM A269 Gr TP321 heater tubes

ASME SA 269 321 heat exchanger tubes

ASME SA 269 321 heat exchanger tubes

ASTM A269 TP 321 stainless steel polish tube

ASTM A269 TP 321 stainless steel polish tube

Price List of SA 269 Gr 321 Bright Annealed Tubes

Standard Size Country name CIF price Payment term Delivery days Size in stock? if not how many days to arranged?
  • 6mm
  • 6.35mm
  • 8.00 mm
  • 9.52 mm
  • 10.00 mm
  • 12.7 mm
  • 15.88mm x 0.9 mm / 1.2mm / 1.65mm / 2.00 mm 
Norway 132022.50 NOK /TON 30% ADV , BAL AGSINT SHIPMENT 2 weeks + sailing time 4 weeks
Ukraine 4275728.77 UAH /TON 30% ADV , BAL AGSINT SHIPMENT 2 weeks + sailing time 4 weeks
Australia 19587.20 AUD /TON 30% ADV , BAL AGSINT SHIPMENT 2 weeks + sailing time 4 weeks
Buy A269 TP321 Cold Drawn Seamless Tube with Chemical Testing

A269M TP321 Cold Drawn Seamless Tube Chemical Composition

321H Stainless Steel

S 0.030%

C 0.04 0.10%

Si 0.75%

Mn 2.00%

p 0.045%

Cr 17.0 19.0%

Ni 9.0 12.0%

321 Stainless Steel

S 0.030%

C – 0.08%

Si 0.75%

Mn 2.00%

p 0.045%

Cr 17.0 19.0%

Ni 9.0 12.0%

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
View Pressure Rating Chart of SA 269 321 Heat Exchanger Tubes in India

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
696.0 812.0 1044.0 1406.5 1899.5 1783.5 3987.5 2407.0 3059.5
667.0 870.0 1174.5 1566.0 1464.5 3277.0 1986.5 2508.5
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
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
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