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What is ASTM A213 TP304?

304 Stainless Steel Tube is one of the most commonly used grades across various industries. This is because of its affordability and the properties it possesses. Tubes and pipes made of the ASTM A213 TP304 material can be found in high temperature and pressure applications.

This would include boilers, heat exchangers, and superheater tubes. The SA 213 TP304 is an austenitic grade with 2-3% molybdenum added to the alloy. This helps to improve the corrosion resistance properties of the SA 213 gr 304 material. Due to the properties, they are used in applications like petrochemical, food processing, construction, etc.

SS 304 seamless tube manufacturer in India

304 stainless steel tube manufacturer in India

What is 2B finish on 304 stainless steel tubing?

The 2B finish on 304 Stainless Steel Tubing solution is achieved by cold rolling, heat treating, and then pickling the material. The process also includes light rolling of the material. The finish is smooth, non reflective and comes with good flatness. 2B gives a grey matt finish on AISI 304 Tubes which looks dull and unreflective. Thus, they can only be used in applications where corrosion resistance is not an issue.

Specializing in the production of SS 304 welded tube and SA 213 TP 304 material to ensure quality and fast delivery

304 Stainless Steel Tube

304 Stainless Steel Tube

ASTM A213 TP304 Round Tube

ASTM A213 TP304 Round Tube

SS 304 Seamless Tube

SS 304 Seamless Tube

Why 304 stainless steel tube used in food & dairy industry?

Well known SS 304 Seamless Tube manufacturer in India recommends the SS 304 tubes for the food & dairy industry due to a number of reasons:

  • It shows good resistance to corrosion
  • It has good oxidation and sulfidation resistance
  • The 304 Stainless Steel Square Tubing material shows high strength and durability
  • It can be used for different fabrication techniques
  • The Welded 304 Stainless Steel Tubing material is quite suitable for cleaning procedures
  • It is resistant to heat
  • It protects the flavor and color of the food & dairy products.

Buy 304 SS seamless tubing and 304 Stainless steel square tubing at factory price with MTC EN 10204 3.1

Table of Contents


304 stainless steel tube manufacturer

SS 304 tube specifications

ss 304 temperature range Applications Outer Diameter
900° C to 1350° C
  • Automobile
  • Decorative
  • Refrigeration
  • Sugar Mills
  • Dairy & Foods
  • Water Supply
  • Heat Exchangers
  • Pharmaceuticals
  • Textiles
  • Power Plants
 ¼” to 4½” O.D. (12.70mm to 114.30 mm)
Thickness Manufacturing Specification Testing
0.30 mm to 5 mm ASTM A249
ASTM A554
  • Tensile Test
  • Flattening Test
  • Flare Flange Test
  • Reverse Bend Test
  • Reverse Bend Test
  • 100% Hydrostatic Test
  • Hardness Test
We supply SS 304 rectangular tube and polished 304 stainless steel tubing with Ultrasonic & Eddy Current testing method

Types of 304 stainless steel tubing

SA 213 TP304 material

SA 213 TP304 material

SA 213 TP 304 Tubes

SA 213 TP 304 Tubes

SA 213 gr 304 Tubes

SA 213 gr 304 Tubes

304 Stainless Steel Tubing

304 Stainless Steel Tubing

304 Stainless Tubing

304 Stainless Tubing

304 SS Tubing

304 SS Tubing

SS 304 Welded Tube

SS 304 Welded Tube

304 Stainless Steel Square Tubing

304 Stainless Steel Square Tubing

Welded 304 Stainless Steel Tubing

Welded 304 Stainless Steel Tubing

SS304 Tube

SS304 Tube

304 Stainless Steel Rectangular Tube

304 Stainless Steel Rectangular Tube

304 Seamless Tubing

304 Seamless Tubing

304 Stainless Steel Round Tube

304 Stainless Steel Round Tube

SS 304 Square Tube

SS 304 Square Tube

AISI 304 Tube

AISI 304 Tube

Polished 304 Stainless Steel Tubing

Polished 304 Stainless Steel Tubing

Seamless 304 Stainless Steel Tubing

Seamless 304 Stainless Steel Tubing

SS 304 Rectangular Tubes

SS 304 Rectangular Tubes

1.4301 Tube

1.4301 Tube

304 Stainless Steel Polish Tubes

304 Stainless Steel Polish Tubes

SS 304 Tubes

SS 304 Tubes

ASTM A213 TP304 Round Tube stockist in India, check SS304 Tubes and 304 stainless tubing weight chart

Stainless steel 304 tube sizes

BWG BWG BWG BWG BWG BWG BWG BWG
12 10 22 20 18 16 25 14
WT milimeter
Outside Dia OD 2.769 3.404 0.711 0.889 1.245 1.651 0.508 2.108
Milimeter Inches kgs/meter
6.35 1/4 　 　 0.109 0.133 0.174 0.212 0.081 　
9.53 3/8 　 　 0.157 0.193 0.257 0.356 0.126 0.429
12.7 1/2 0.754 　 0.214 0.263 0.356 0.457 　 0.612
15.88 5/8 0.995 　 0.271 0.334 0.455 0.588 　 0.796
19.05 3/4 1.236 　 0.327 0.405 0.553 0.729 　 0.895
25.4 1 1.574 2.05 0.44 0.546 0.75 0.981 　 1.234
31.75 1 1/4 2.014 2.641 0.554 0.688 0.947 1.244 　 1.574
38.1 1 1/2 2.454 3.233 0.667 0.832 1.144 1.514 　 1.904
44.5 1 3/4 2.894 3.5 　 　 1.342 1.774 　 2.244
50.8 2 3.334 4.03 　 　 1.549 2.034 　 2.574
63.5 2 1/2 4.214 5.13 　 　 1.949 2.554 　 3.244
76.2 3 5.094 6.19 　 　 2.345 3.084 　 3.914
88.9 3 1/2 5.974 7.27 　 　 2.729 3.609 　 4.584
101.6 4 6.854 8.35 　 　 　 4.134 　 5.254
114.3 4 1/2 7.734 9.43 　 　 　 4.654 　 5.924

SS 304 square tube weight chart

MM 0.80 0.65 0.90 1.20 1.50 0.95 1.00 2.00 2.50
12.5 x 12.5 0.091 0.075 0.102 0.133 0.163 0.107 0.112
20 x 20 0.220 0.271 0.176 0.184 0.354 0.433 0.508
25 x 25 0.277 0.343 0.221 0.232 0.450 0.553 0.652
30 x 30 0.335 0.415 0.267 0.280 0.516 0.673 0.796
38 x 38 0.427 0.531 0.340 0.358 0.700 0.866 1.027
40 x 40 0.450 0.559 0.358 0.376 0.738 0.898 1.084
50 x 50 0.565 0.703 0.473 0.930 1.153 1.372

SS 304 tube chemical composition

SS 304 304N 304LN
Ni 8 – 11 8 – 11 8 – 11
Fe Balance
Cr 18 – 20 18 – 20 18 – 20
P 0.040 maximum 0.040 maximum 0.040 maximum
C 0.08 maximum 0.08 maximum 0.035 maximum
Si 0.75 maximum 0.75 maximum 0.75 maximum
Mn 2 maximum 2 maximum 2 maximum
S 0.030 maximum 0.030 maximum 0.030 maximum
N 0.10 – 0.16 0.10 – 0.16

ASTM A213 TP304 welded tubing mechanical properties

Density 8.0 gram/cm3
Tensile Strength Psi – 75000 , MPa – 515
Melting Point 1400 °C (2550 °F)
Elongation 35 %
Yield Strength (0.2%Offset) Psi – 30000 , MPa – 205

AISI 304 rectangular tubes physical properties

Grade Mean Coefficient of Thermal Expansion (m/m/0C) Density (kg/m3) Specific Heat 0-1000C (J/kg.K) Elastic Modulus (GPa) Thermal Conductivity (W/m.K) Electrical Resistivity (n.m)
0-1000C 0-3150C 0-5380C at 1000C at 5000C
304/H 17.2 17.8 18.4 8000 500 193 16.2 21.5 720

Equivalent grades of SA 213 TP 304 welded tubes

GRADE OLD BRITISH UNS NO EURONORM JAPANESE JIS SWEDISH SS
BS EN NO NAME
304 304S31 58E S30400 1.4301 X5CrNi18-10 SUS 304 2332

304 SS tubing pressure rating

WALL THK OUTER.DIA. IN INCHES 28ga .010" 18ga .049" 16ga .065" 14ga .083" 25ga .020" 22ga .028" 20ga .035" 13ga .095" 11ga .120" 10ga .134" 12ga 0.109" 9ga .148"
1/16 24000 48000
0.0057 0.0092
1 /8 58800 24000 33600 42000
0.0398 0.0224 0.029 0.0336
3/1 6 39200 16000 22400 28000
0.0727 0.0369 0.0478 0.0572
1 /4 29400 39000 12000 16800 21000
0.0152 0.1284 0.0491 0.0664 0.0804
5/1 6 23520 31200 9600 13440 16800
0.1382 0.1722 0.0626 0.0852 0.1039
3/8 19600 26000 33200 8000 11200 14000
0.1706 0.2152 0.2588 0.0758 0.1038 0.1271
7/1 6 16800 22285 28457 6857 9600 12000
0.2036 0.2589 0.3147 0.0893 0.1226 0.1506
1 /2 14700 19500 24900 6000 8400 10500 28500
0.236 0.302 0.3696 0.1025 0.1411 0.1738 0.4109
5/8 11750 15600 19925 4800 6725 8400 22800
0.3014 0.3888 0.4805 0.1292 0.1785 0.2205 0.5377
3/4 9800 13000 16600 4000 5600 7000 19000 24000 21800
0.3668 0.4755 0.5913 0.1559 0.2159 0.2673 0.6646 0.8074 0.7462
7/8 8400 11150 14250 3425 4800 6000 16275 20570 18675
0.4323 0.5623 0.7021 0.1826 0.2533 0.314 0.7914 0.9676 0.8917
1 7350 9750 12450 3000 4200 5250 14250 18000 20100 16350 22200
0.4977 0.6491 0.8129 0.2093 0.2907 0.3607 0.9182 1.128 1.251 1.037 1.347
1 -1 /4 5875 7800 9950 3350 4200 11400 14400 16075 13075 17750
0.6285 0.8226 1.034 0.3654 0.4542 1.172 1.448 1.612 1.328 1.742
1 -3/8 5350 7100 9050 3050 3825 10350 13100 14625 11900 16150
0.6939 0.9094 1.145 0.4028 0.5009 1.299 1.608 1.793 1.474 1.939
1 -1 /2 4900 6500 8300 2800 3500 9500 12000 13400 10900 14800
0.7593 0.9962 1.256 0.4402 0.5476 1.426 1.769 1.973 1.619 2.157
1 -5/8 4525 6000 7650 2575 3225 8775 11075 12375 10050 13650
0.8248 1.083 1.367 0.4776 0.5943 1.552 1.929 2.154 1.766 2.356
1 -3/4 4200 5575 7125 2400 3000 8150 10275 11475 9350 12675
0.8902 1.17 1.478 0.5149 0.6411 1.679 2.089 2.334 1.91 2.556
1 -7/8 3925 5200 6650 2800 7600 9600 10725 8725 11850
0.9556 1.257 1.589 0.6878 1.806 2.249 2.492 2.056 2.73
2 3675 4875 6225 2625 7125 9000 10050 8175 11100
1.021 1.343 1.699 0.7345 1.933 2.409 2.695 2.201 2.955
3 2450 3250 4150 4750 6000 6700 5450 7400
1.544 2.037 2.586 2.947 3.691 4.14 3.365 4.55
4 1825 2425 3100 4075 4500 5025 4090 5550
2.068 2.732 3.472 3.962 4.973 5.585 4.53 6.146

DIN 1.4301 round tubes advantages

  • Good formability
  • High strength
  • Resistant to high mechanical stresses
  • Resistant to high temperature
  • Reusable
  • Resistant to high pressure

SS 304 tube dimensions

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

Stainless steel 304 seamless tubes packaging

  • Bundle Packing
  • Wooden Case

ASTM A554 TP 304 vs SA 213 GR 304 square tube

The ASTM A554 TP304 material is an austenitic grade that has high nickel and chromium content along with other alloys. They are intended to be used in structural, ornamental, and various mechanical applications. They have a good appearance and mechanical properties.

The SS 304 Square Tubes material is also an austenitic alloy which primarily constitutes of nickel and chromium. They are mostly found in boilers, superheaters, and heat exchangers, in high temperature and pressure environments.

4 common differences between welded and seamless 304 stainless steel tubing

  • Welded and Seamless 304 Stainless Steel Tubing solutions have different manufacturing methods. The seamless tubes are extruded and drawn from a billet whereas welded tubes are produced by roll forming a strip and then welding it to a tube.
  • The SS 304 Welded Tubes is more affordable than the seamless variant.
  • The welded tubes can have greater lengths than seamless tubes.
  • The seamless SS304 Tubes do not have a weak seam; hence, they offer better corrosion resistance and leak-free properties.

Advantages of polished 304 stainless steel tubing

The Polished 304 Stainless Steel Tubing come with smooth surfaces without those scratches and imperfections. Polishing helps to improve the corrosion resistance properties and appearance of the tubes. The process also prevents contamination and oxidation, while giving a reflective surface that have reduced wear & tear.