Stainless Steel 304 Pipe Specification
Dimensions Standard |
API, ASTM, ASME |
ASTM / ASME Name |
ASTM A312, ASTM A269, ASME SB677, ASTM A213, ASME SA 789/ASTM A789. ASME SA 790/ASTM A790 |
OD |
1/8″ To 30″ NB Inch |
Seamless pipe Size |
1/2″ NB -16″NB |
ERW pipe size
|
1/2″ NB – 24″ NB |
EFW pipe OD |
6″ NB – 100″ NB |
Type of Pipe |
Welded / ERW / Seamless /LSAW/ Fabricated Pipe |
Stock Length |
Double or Single Random and cut to size |
End Finishing |
Theaded, Plain End, Beveled End |
Form |
Round and Hydraulic Form Etc |
Difference between AISI 304 seamless, erw and welded pipe manufacturing process
Piping materials of the 304 grade are generally produced in seamless, welded, and erw manufacturing processes.
- The 304 stainless steel seamless pipe is manufactured as hot steel billets pierce through an extruded metal. Here the billets shape the metal in definite dimensions. The absence of seam in the 304 seamless tubing gives its enhanced strength and tolerance compared to welded or erw counterparts.
- A Stainless Steel 304 erw pipe is manufactured by cold forming of steel material in a cylindrical shape. A low frequency AC current is passed through the SS 304 erw pipe. Here the longitudinal seam pipe melt at high temperatures. They don’t require a filler metal to weld them in place.
- The SS 304 welded pipe is manufactured as a strip, sheets and plates are cold rolled using a bending machine. The Welded 304 stainless steel tubing is then welded in place with or without filler material.
Be sure to compare price of Stainless Steel 304 Tube with verified & genuine SS 304 pipe suppliers in Dubai
ASTM A312 TP304 Pipe Price list
SS 304 Seamless Pipe Price per kg in India
Nominal Bore |
Sch 10 |
Outside Diameter |
Price per Kg |
Price per Kg in USD |
Rate per Kg |
Weight |
Wt |
mm |
mm |
INCH |
AED/Kg |
USD/ Kg |
INR/Kg |
(Kg/mt) |
mm |
6 |
13.7 |
1/4 |
AED 24.51 |
6.67 |
550 |
0.39 |
1.65 |
15 |
21.3 |
1/2 |
AED 17.83 |
4.85 |
400 |
0.8 |
2.11 |
10 |
17.1 |
3/8 |
AED 21.17 |
5.76 |
475 |
0.49 |
2.11 |
25 |
33.4 |
1 |
AED 15.60 |
4.25 |
350 |
1.3 |
2.77 |
20 |
26.7 |
3/4 |
AED 17.83 |
4.85 |
400 |
1.03 |
2.11 |
32 |
42.2 |
1 1/4 |
AED 15.60 |
4.25 |
350 |
1.65 |
2.77 |
65 |
73 |
2 1/2 |
AED 15.60 |
4.25 |
350 |
3.69 |
3.05 |
40 |
48.3 |
1 1/2 |
AED 15.60 |
4.25 |
350 |
1.91 |
2.77 |
80 |
88.9 |
3 |
AED 15.60 |
4.25 |
350 |
4.51 |
3.05 |
50 |
60.3 |
2 |
AED 15.60 |
4.25 |
350 |
2.4 |
2.77 |
100 |
114.3 |
4 |
AED 15.60 |
4.25 |
350 |
5.84 |
3.05 |
150 |
168.3 |
6 |
AED 17.83 |
4.85 |
400 |
11.32 |
3.40 |
125 |
141.3 |
5 |
AED 17.83 |
4.85 |
400 |
9.47 |
2.77 |
250 |
273.1 |
10 |
AED 17.83 |
4.85 |
400 |
22.63 |
3.4 |
200 |
219.1 |
8 |
AED 17.83 |
4.85 |
400 |
14.79 |
2.77 |
350 |
355.6 |
14 |
AED 22.28 |
6.07 |
500 |
34.36 |
3.96 |
300 |
323.9 |
12 |
AED 20.05 |
5.46 |
450 |
31.25 |
3.96 |
450 |
457.2 |
18 |
AED 22.28 |
6.07 |
500 |
46.8 |
4.19 |
400 |
406.4 |
16 |
AED 22.28 |
6.07 |
500 |
41.56 |
4.19 |
What are the advantages of Stainless Steel 304 Tube?
A stainless steel 304 tube is very strong, versatile, and offers a range of advantages to the users.
- The Stainless Steel 304 Tube has excellent corrosion resistance properties and also works well in different oxidative environments.
- The 304 tubing has good hygienic performance and allows for a smooth flow of media in the system.
- A 304 stainless steel round tube is highly versatile and has an outstanding appearance making it a good choice for commercial establishments.
- The 1.4301 tube offers excellent stability and support to different applications.
- The tubing of the 304 grade is environmentally friendly and completely recyclable.
- The 304 stainless tubing is very durable and can suffice for long periods.
Most Common Types of SS 304 Pipe

Stainless Steel 304 Pipe

SS 304 seamless pipe

Stainless Steel 304 ERW pipe

ASTM A312 TP304 Pipe

Stainless Steel 304 Tube

SS 304 Welded Pipe

SA 312 tp 304 Seamless Tubing

1.4301 Tube

UNS S30400 Stainless Tubing
SS 304 welded pipe and 304 stainless steel round tube available in Schedule 160, 80, 40 as per ASME B36.19, check SUS 304 pipe price per meter in UAE
Schedule 10 vs Schedule 40 304 stainless steel pipe
Schedule 10 and 40 are the two common types of schedules of pipe. The Schedule 10 304 stainless steel pipe is cheaper and is designed to handle lower fluid and gaseous flow. In comparison, the robust Schedule 40 304 stainless steel pipe is stronger and can handle a higher flow rate.
SS 304 Seamless Pipe Schedule Chart
Nominal Pipe Size |
Outside Diameter |
Schedule 20 S |
Schedule 10 S |
Schedule 5 S |
XXS |
Schedule 80 S |
Schedule 40 S |
Schedule 160 S |
mm |
inch |
mm |
WT mm |
WEIGHT (KGM) |
WT mm |
WEIGHT (KGM) |
WT mm |
WEIGHT (KGM) |
WT mm |
WEIGHT (KGM) |
WT mm |
WEIGHT (KGM) |
WT mm |
WEIGHT (KGM) |
WT mm |
WEIGHT (KGM) |
3 |
1/8 |
10.3 |
1.5 |
0.33 |
1.24 |
0.28 |
1.2 |
0.20 |
– |
– |
2.41 |
0.47 |
1.73 |
0.37 |
– |
– |
15 |
1/2 |
21.3 |
2.30 |
1.07 |
2.11 |
1.00 |
1.65 |
0.80 |
7.47 |
2.55 |
3.73 |
1.62 |
2.77 |
1.27 |
4.75 |
1.94 |
20 |
3/4 |
26.7 |
2.55 |
1.52 |
2.11 |
1.28 |
1.65 |
1.03 |
7.82 |
3.64 |
3.91 |
2.20 |
2.87 |
1.69 |
5.56 |
2.90 |
10 |
3/8 |
17.1 |
2.00 |
0.74 |
1.65 |
0.63 |
1.2 |
0.47 |
– |
– |
3.20 |
1.10 |
2.31 |
0.840 |
– |
– |
32 |
1.1/4 |
42.2 |
3.00 |
2.90 |
2.77 |
2.70 |
1.65 |
1.65 |
9.70 |
7.77 |
4.85 |
4.47 |
3.56 |
3.39 |
6.35 |
5.61 |
200 |
8 |
219.1 |
6.35 |
33.31 |
3.76 |
19.96 |
2.77 |
14.79 |
22.23 |
107.92 |
12.7 |
64.64 |
8.18 |
42.55 |
23.01 |
111.27 |
25 |
1 |
33.4 |
2.55 |
1.94 |
2.77 |
2.09 |
1.65 |
1.30 |
9.09 |
5.45 |
4.55 |
3.24 |
3.38 |
2.50 |
6.35 |
4.24 |
40 |
1.1/2 |
48.3 |
3.00 |
3.55 |
2.77 |
3.11 |
1.65 |
1.91 |
11.1 |
10.18 |
5.08 |
5.41 |
3.68 |
4.05 |
7.14 |
7.25 |
6 |
1/4 |
13.7 |
2.00 |
0.58 |
1.65 |
0.49 |
1.2 |
0.37 |
– |
– |
3.02 |
0.80 |
2.24 |
0.630 |
– |
– |
300 |
12 |
323.8 |
6.35 |
49.7 |
4.57 |
36.00 |
3.96 |
31.25 |
25.40 |
186.97 |
12.7 |
132.05 |
9.53 |
73.88 |
33.32 |
238.76 |
65 |
2.1/2 |
73.0 |
4.00 |
6.81 |
3.05 |
5.26 |
2.11 |
3.69 |
14.02 |
20.39 |
7.01 |
11.41 |
5.16 |
8.63 |
9.53 |
14.91 |
100 |
4 |
114.3 |
4.50 |
12.18 |
3.05 |
8.36 |
2.11 |
5.84 |
17.12 |
41.03 |
8.56 |
22.32 |
6.02 |
16.07 |
13.49 |
33.54 |
80 |
3 |
88.9 |
4.00 |
8.37 |
3.05 |
6.45 |
2.11 |
4.51 |
15.24 |
27.68 |
7.62 |
15.27 |
5.49 |
11.29 |
11.1 |
21.30 |
50 |
2 |
60.3 |
3.00 |
4.24 |
2.77 |
3.93 |
1.65 |
2.40 |
11.07 |
13.44 |
5.54 |
7.48 |
3.91 |
5.44 |
8.74 |
11.11 |
125 |
5 |
141.3 |
5.00 |
16.80 |
3.40 |
11.57 |
2.77 |
9.47 |
19.05 |
57.43 |
9.53 |
30.97 |
6.55 |
21.8 |
15.88 |
49.11 |
150 |
6 |
168.3 |
6.35 |
25.36 |
3.40 |
13.84 |
2.77 |
11.32 |
21.95 |
79.22 |
10.97 |
42.56 |
7.11 |
28.26 |
18.25 |
67.53 |
250 |
10 |
273.1 |
6.35 |
41.77 |
4.19 |
27.78 |
3.40 |
22.63 |
25.40 |
155.15 |
12.7 |
96.01 |
9.27 |
60.31 |
28.58 |
172.33 |
What Marking has been done on SS 304 welded pipe

304 stainless steel seamless pipe as per DIN, SUS, JIS, AISI, ASTM, check SS 304 erw pipe size chart, weight and SA 312 tp 304 specification
How Do You Test A SS 304 Seamless Pipe?
The 304 seamless pipe are run through various tests to check their integrity and performance. The most common tests performed on the SS 304 seamless pipe are
- Hydrostatic tests to check any leaks in the pipe.
- Ultrasonic testing is used to determine the wall thickness of a pipe. This helps determine the pressure it can hold.
- Magnetic particle inspection is a complex test that checks any imperfections by applying iron particles.
- The Charpy Impact test helps measure the toughness of the material.
- In the Positive material identification test, x-ray radiation is used to check for any defects in the pipe.
SS 304 ERW Pipe Weight Chart
WEIGHT / FT. (LBS) |
PIPE O.D. (INCH) |
NPS |
I.D.(INCH) |
WALL THICKNESS |
.320 |
.405 |
1/8 |
.215 |
.095 |
1.088 |
.840 |
1/2 |
.546 |
.147 |
.540 |
.840 |
1/2 |
.710 |
.065 |
.245 |
.405 |
1/8 |
.269 |
.068 |
1.420 |
1.315 |
1 |
1.097 |
.109 |
2.100 |
1.900 |
1 1/2 |
1.682 |
.109 |
.425 |
.540 |
1/4 |
.364 |
.088 |
.690 |
1.050 |
3/4 |
.920 |
.065 |
.568 |
.675 |
3/8 |
.493 |
.091 |
.425 |
.540 |
1/4 |
.364 |
.088 |
1.474 |
1.050 |
3/4 |
.742 |
.154 |
.568 |
.675 |
3/8 |
.493 |
.091 |
.750 |
.675 |
3/8 |
.423 |
.126 |
.851 |
.840 |
1/2 |
.622 |
.109 |
2.172 |
1.315 |
1 |
.957 |
.179 |
.540 |
.540 |
1/4 |
.302 |
.119 |
.880 |
1.315 |
1 |
1.185 |
.065 |
4.370 |
3.500 |
3 |
3.260 |
.120 |
2.997 |
1.660 |
1 1/4 |
1.278 |
.191 |
2.660 |
2.375 |
2 |
2.157 |
.109 |
1.131 |
1.050 |
3/4 |
.824 |
.113 |
1.100 |
.840 |
1/2 |
.546 |
.147 |
.851 |
.840 |
1/2 |
.622 |
,109 |
1.131 |
1.050 |
3/4 |
.824 |
.113 |
1.490 |
1.050 |
3/4 |
.742 |
.154 |
1.120 |
1.660 |
1 1/4 |
1.530 |
.065 |
1.679 |
1.315 |
1 |
1.049 |
.133 |
3.631 |
1.900 |
1 1/2 |
1.500 |
.200 |
4.973 |
4.000 |
3 1/2 |
3.760 |
.120 |
5.670 |
4.500 |
4 |
4.260 |
.120 |
1.274 |
1.900 |
1 1/2 |
1.770 |
.065 |
1.620 |
2.375 |
2 |
2.245 |
.065 |
2.273 |
1.660 |
1 1/4 |
1.380 |
.140 |
2.190 |
1.315 |
1 |
.957 |
.179 |
1.679 |
1.315 |
1 |
1.049 |
.133 |
3.030 |
1.660 |
1 1/4 |
1.278 |
.191 |
5.022 |
2.375 |
2 |
1.939 |
.218 |
2.718 |
1.900 |
1 1/2 |
1.610 |
.145 |
10.250 |
3.500 |
3 |
2.900 |
.300 |
3.060 |
3.500 |
3 |
3.334 |
.065 |
2.273 |
1.660 |
1 1/4 |
1.380 |
.140 |
7.840 |
5.563 |
5 |
5.295 |
.134 |
9.380 |
6.625 |
6 |
6.357 |
.134 |
3.653 |
2.375 |
2 |
2.067 |
.154 |
3.760 |
1.900 |
1 1/2 |
1.500 |
.200 |
2.718 |
1.900 |
1 1/2 |
1.610 |
.145 |
14.980 |
4.500 |
4 |
3.826 |
.337 |
3.653 |
2.375 |
2 |
2.067 |
.154 |
5.793 |
2.875 |
2 1/2 |
2.469 |
.203 |
13.400 |
8.625 |
8 |
8.329 |
.148 |
5.070 |
2.375 |
2 |
1.939 |
.218 |
18.650 |
10.750 |
10 |
10.420 |
.165 |
7.660 |
2.875 |
2 1/2 |
2.323 |
.275 |
5.793 |
2.875 |
2 1/2 |
2.469 |
.203 |
7.576 |
3.500 |
3 |
3.068 |
.216 |
7.576 |
3.500 |
3 |
3.068 |
.216 |
24.160 |
12.750 |
12 |
12.390 |
.180 |
9.109 |
4.000 |
3 1/2 |
3.548 |
.226 |
10.790 |
4.500 |
4 |
4.026 |
.237 |
9.109 |
4.000 |
3 1/2 |
3.548 |
.226 |
14.750 |
5.563 |
5 |
5.047 |
.258 |
10.890 |
4.500 |
4 |
4.026 |
.237 |
19.150 |
6.625 |
6 |
6.065 |
.280 |
40.860 |
10.750 |
10 |
10.020 |
.365 |
28.820 |
8.625 |
8 |
7.981 |
.322 |
50.030 |
12.750 |
12 |
12.000 |
.375 |
What are Test Certificates of SA 312 tp 304 Tube ?
- from Govt. Approved Lab. Laboratory Test Certificate
- (Form III-D) IBR Test Certificate
- Manufacturer Test Certificate
- Third Party Inspection
Stainless Steel 304 Tube Size chart
Nominal ID |
Nominal OD / Wall |
Nominal Wt./Ft. |
.042 |
1/16″ x .010 |
.0057 |
.062 |
3/32″ x .016 |
.0136 |
.038 |
3/32″ x .028 |
.0202 |
.054 |
3/32″ x .020 |
.0162 |
.030 |
1/16″ x .016 |
.0080 |
.101 |
1/8″ x .012 |
.0149 |
.022 |
1/16″ x .020 |
.0092 |
.105 |
1/8″ x .010 |
.0126 |
.069 |
1/8″ x .028 |
.0298 |
.085 |
1/8″ x .020 |
.0231 |
.093 |
1/8″ x .016 |
.0191 |
.055 |
1/8″ x .035 |
.0346 |
Check SA 312 TP 304 chemical composition, ask for a CIF & sample mill test certificate in Middle East
ASTM A312 TP304 vs SA 312 TP 304
The ASTM A312 TP304 is covered by the American Society for Testing Materials. The grade is one of the largest organizations developing voluntary standards in the world. SA 312 tp 304 comes under the American Society for Mechanical Engineers. The oldest standards developing organization that encourage collaboration across different engineering disciplines.
The SA312 tp304 standard covers around 600 codes covering technical standards for piping material. The A312 TP304 grade covers over 12,000 standards and is utilized to enhance the quality and build consumer confidence. The A312 tp304 material and the SA grade have nearly identical specifications. There are many ASTM materials that are not accepted by the ASME code for construction.
What is Heat Treatment Methods of 304 tubing?

DIN 1.4301 pipe Chemical Composition
SS |
304 |
Fe |
Balance |
Ni |
8 – 11 |
Cr |
18 – 20 |
Si |
0.75 max |
C |
0.08 max |
Mn |
2 max |
S |
0.030 max |
P |
0.040 max |
N |
– |
Mechanical Properties of 304 Stainless Tubing
Grade |
304 |
Elongation (% in 50mm) min |
40 |
Yield Strength 0.2% Proof (MPa) min |
205 |
Tensile Strength (MPa) min |
515 |
Hardness |
|
Brinell (HB) max |
201 |
Rockwell B (HR B) max |
92 |
SUS 304 Pipe Equivalent
STANDARD |
GOST |
WERKSTOFF NR. |
UNS |
AFNOR |
JIS |
BS |
EN |
SS 304 |
08Х18Н10 |
1.4301 |
S30400 |
Z7CN18‐09 |
SUS 304 |
304S31 |
X5CrNi18-10 |
UNS S30400 Pipe Industrial Application
- equipment and appliances, Kitchen benches, troughs, sinks
- Heat Exchangers
- Automotive trim
- Trailers
- Food processing equipment
- Architectural applications
- construction materials
- including for transport Chemical containers
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