The item
304 seamless Pipes with an outside diameter of 13.7 mm in schedule 40. The default austenitic stainless. 18% chromium, 8% nickel, no molybdenum.
This is a size we hold rather than one we have to roll. The default austenitic stainless. 18% chromium, 8% nickel, no molybdenum. Supplied with a mill test certificate to EN 10204 3.1 as standard.
Pitting resistance equivalent. Higher resists chlorides better.
Indexed to 304. Indicative, for specification triage.
Rajgranth Metal & Alloys stocks and supplies 304 seamless Pipes, OD 13.7 mm × SCH 40 from Mumbai, with the material, tests and documentation covered by our ISO 9001:2015 quality system. Rajgranth Metal & Alloys has been trading since 1980, is self-funded and debt-free, and despatches most orders from its Mumbai stockyard within two days.
304 seamless Pipes with an outside diameter of 13.7 mm in schedule 40. The default austenitic stainless. 18% chromium, 8% nickel, no molybdenum.
Stainless Steel 304 and 304L, designated UNS S30400 / S30403, EN 1.4301 / 1.4306, AISI 304 / 304L, JIS SUS304 / SUS304L, GB S30408 / S30403 and Werkstoff X5CrNi18-9 / X2CrNi19-11.
Standards include ASTM A213 / ASME SA-213, ASTM A269, ASTM A312 / ASME SA-312, ASTM A376 / ASME SA-376, ASTM A789 / ASME SA-789, ASTM A790 / ASME SA-790, ASTM A268 / ASME SA-268 and ASTM A511. Finishes and conditions include Bright Annealed (CFA), Solution Annealed (CFD), Electro Polished (EP), Polished (APP), Annealed and Pickled (AP), Mirror Polish, Matt Polish and Cold Drawn.
food and dairy processing, architectural and structural trim, potable water systems, general process piping, heat exchanger tube and fasteners and machined parts. We supply across India and export to markets in the Middle East, Africa, Europe, Asia, North America and South America.
Send the quantity, standard and any special requirement and we will confirm availability. Material is supplied with documentation, tested in house across 18 listed testing facilities, and covered by our ISO 9001:2015 quality management system.
Cut to length on request
3.2 with third-party inspection on request
The full detail for this product as supplied from our Mumbai stockyard: sizes, grades, standards, tolerances, tests and applications.

Rgmalloys is one of the one of the top leading manufacturers, stockholders, and suppliers of stainless steel (SS) seamless pipes are one of the most popular materials used in industries today, thanks to their high strength, durability, and resistance to corrosion. Unlike welded pipes, seamless pipes are made from solid materials, ensuring that there are no weak spots along the pipe's length. This makes them ideal for critical applications that demand high reliability and safety.
When we talk about SS seamless pipes in grade 304, we refer to pipes made from a specific stainless steel alloy—304—which is widely recognised for its excellent balance between affordability and performance. Whether you're in the chemical industry, automotive manufacturing, or plumbing systems, SS grade 304 offers a durable and corrosion-resistant solution.
Get A Quote NOW
Diameter 13.7 mm: This measurement refers to the outer diameter of the pipe. Pipes with this diameter are typically used for smaller-scale industrial applications, where precision and a compact size are key.
Schedule 40 (Sch 40): "Sch 40" relates to the wall thickness of the pipe. A Sch 40 pipe is known for its standard thickness, providing a balance between strength and ease of installation. It can withstand moderate pressures without being overly thick or heavy, making it perfect for applications such as water lines, gas systems, and more.
Raw Material Selection: High-quality stainless steel billets are selected.
Extrusion: These billets are heated and extruded into a hollow tube shape, ensuring there are no seams
ANSI B36.19 STAINLESS STEEL PIPE DIMENSION IN MM & WEIGHT PER KG.
Nominal Pipe Size
Outside Diameter
Schedule 5 S
Schedule 10 S
Schedule 20 S
Schedule 40 S
Schedule 80 S
Schedule 160 S
XXS
mm
inch
WT mm
Weight (KGM)
3
1/8
10.3
1.2
0.20
1.24
0.28
1.5
0.33
1.73
0.37
2.41
0.47
-
6
1/4
13.7
1.65
0.49
2.00
0.58
2.24
0.630
3.02
0.80
10
3/8
17.1
0.63
0.74
2.31
0.840
3.20
1.10
15
1/2
21.3
2.11
1.00
2.30
1.07
2.77
1.27
3.73
1.62
4.75
1.94
7.47
2.55
20
3/4
26.7
1.03
1.28
1.52
2.87
1.69
3.91
2.20
5.56
2.90
7.82
3.64
25
1
33.4
1.30
2.09
3.38
2.50
4.55
3.24
6.35
4.24
9.09
5.45
32
1.1/4
42.2
2.70
3.00
3.56
3.39
4.85
4.47
5.61
9.70
7.77
40
1.1/2
48.3
1.91
3.11
3.55
3.68
4.05
5.08
5.41
7.14
7.25
11.1
10.18
50
2
60.3
2.40
3.93
5.44
5.54
7.48
8.74
11.11
11.07
13.44
65
2.1/2
73.0
3.69
3.05
5.26
4.00
6.81
5.16
8.63
7.01
11.41
9.53
14.91
14.02
20.39
80
88.9
4.51
6.45
8.37
5.49
11.29
7.62
15.27
21.30
15.24
27.68
100
4
114.3
5.84
8.36
4.50
12.18
6.02
16.07
8.56
22.32
13.49
33.54
17.12
41.03
125
5
141.3
9.47
3.40
11.57
5.00
16.80
6.55
21.8
30.97
15.88
49.11
19.05
57.43
150
168.3
11.32
13.84
25.36
7.11
28.26
10.97
42.56
18.25
67.53
21.95
79.22
200
8
219.1
14.79
3.76
19.96
33.31
8.18
42.55
12.7
64.64
23.01
111.27
22.23
107.92
250
273.1
22.63
4.19
27.78
41.77
9.27
60.31
96.01
28.58
172.33
25.40
155.15
300
12
323.8
3.96
31.25
4.57
36.00
49.7
73.88
132.05
33.32
238.76
186.97
350
14
355.6
34.36
4.78
41.3
7.92
67.80
11.13
94.59
400
16
406.4
41.56
47.29
77.83
123.30
450
18
457.2
46.81
53.26
87.71
14.27
155.80
500
508.0
59.25
68.61
117.14
15.09
183.42
600
24
610.0s
5.54s
82.47
94.45
141.12
17.48
255.41
| CHEMICAL COMPOSITION ( IN PERCENTAGE ) | 11 | 1 | ||||||||
| Grade | C (Max) | Mn (Max) | P (Max) | S (Max) | Si (Max) | Cr | Ni | Mo | Nitrogen (Max) | Cu/ Others |
| 301 | 0.15 | 2 | 0.045 | 0.03 | 1 | 16.00 – 18.00 | 6.00 – 8.00 | – | 0.1 | – |
| 304 | 0.08 | 2 | 0.045 | 0.03 | 0.75 | 18.00 – 20.00 | 8.00- 10.50 | – | 0.1 | – |
| 304L | 0.03 | 2 | 0.045 | 0.03 | 0.75 | 18.00 – 20.00 | 8.00- 12.00 | – | 0.1 | – |
| 310S | 0.08 | 2 | 0.045 | 0.03 | 1.5 | 24.00- 26.00 | 19.00 – 22.00 | – | – | – |
| 316 | 0.08 | 2 | 0.045 | 0.03 | 0.75 | 16.00 – 18.00 | 10.00 – 14.00 | 2.00 – 3.00 | 0.1 | – |
| 316L | 0.03 | 2 | 0.045 | 0.03 | 0.75 | 16.00 – 18.00 | 10.00 – 14.00 | 2.00 – 3.00 | 0.1 | – |
| 317 | 0.08 | 2 | 0.045 | 0.03 | 0.75 | 18.00 – 20.00 | 11.00 – 14.00 | 3.00 – 4.00 | 0.1 | – |
| 317L | 0.03 | 2 | 0.045 | 0.03 | 0.75 | 18.00 – 20.00 | 11.00 – 15.00 | 3.00 – 4.00 | 0.1 | – |
| 321 | 0.08 | 2 | 0.045 | 0.03 | 0.75 | 17.00 – 19.00 | 9.00 – 12.00 | – | 0.1 | Ti5 ( C + N ) Min or 0.70 max |
| 347 | 0.08 | 2 | 0.045 | 0.03 | 0.75 | 17.00 – 19.00 | 9.00 – 13.00 | – | – | Cb= 10x ( C Min ) or 1.00 Max |
| 409 | 0.08 | 1 | 0.04 | 0.01 | 1 | 10.50 – 11.75 | 0.5 | – | – | Ti= 6x (C+ N ) Min or 0.70 Max |
| 409M | 0.03 | 0.81.2 | 0.03 | 0.03 | 0.40.75 | 11.00- 12.00 | 1.5 max. | – | – | Ti= 6x (C) Min or 0.70 Max |
| 410S | 0.08 | 1 | 0.04 | 0.03 | 1 | 11.50- 13.50 | 0.6 | – | – | – |
| 410 | 0.15 | 1 | 0.04 | 0.03 | 1 | 11.50- 13.50 | 0.75 | – | – | – |
| 420 | 0.35 | 0.5 | 0.035 | 0.015 | 0.5 | 12.00 – 13.00 | 0.20.3 | – | – | – |
| 430 | 0.12 | 1 | 0.04 | 0.03 | 1 | 16.00 – 18.00 | 0.75 | – | – | – |
| JSL AUS | 0.08 | 7.08.0 | 0.07 | 0.03 | 0.75 | 15.50 – 16.50 | 4.25 – 4.75 | – | – | 0.9 – 1.10 |
| JS- 203 | 0.08 | 9.2510.25 | 0.07 | 0.03 | 0.75 | 14.25 – 15.25 | 2.25 – 2.75 | – | – | 1.60- 2.0 |
| 301M | 0.1 | 4.55.5 | 0.06 | 0.03 | 0.75 | 14.50 – 15.50 | 6.0 – 7.0 | – | – | 1.70- 1.90 |
| * Thickness of 1.27mm & below will have elongation of 20% min. | 11 | 1 |
|---|
| MECHANICAL PROPERTIES | 6 | 1 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Grade | 1 | 2 | Tensile Strength Mpa, (Min) | 1 | 2 | Yield Strength Mpa, (Min) | 1 | 2 | %Age Elongation in 50mm gauge length min | 1 | 2 | Hardness (Max) | 2 | 1 |
| BHN | Rb | |||||||||||||
| 301 | 515 | 205 | 40 | 217 | 95 | |||||||||
| 304 | 515 | 205 | 40 | 201 | 92 | |||||||||
| 304L | 485 | 170 | 40 | 201 | 92 | |||||||||
| 310S | 515 | 205 | 40 | 217 | 95 | |||||||||
| 316 | 515 | 205 | 40 | 217 | 95 | |||||||||
| 316L | 485 | 170 | 40 | 217 | 95 | |||||||||
| 317 | 515 | 205 | 35 | 217 | 95 | |||||||||
| 317L | 515 | 205 | 40 | 217 | 95 | |||||||||
| 321 | 515 | 205 | 40 | 217 | 95 | |||||||||
| 347 | 515 | 205 | 40 | 201 | 92 | |||||||||
| 409 | 380 | 170 | 20 | 179 | 88 | |||||||||
| 409M | 430 | 275 | 20 | 187 | 90 | |||||||||
| 410S | 415 | 205 | 22 | 183 | 89 | |||||||||
| 410 | 450 | 205 | 20 | 217 | 89 | |||||||||
| 420 | 700( max ) | – | 15 | 217 | 95 | |||||||||
| 430 | 450 | 205 | 22 | 183 | 89 | |||||||||
| JSL AUS | 515 | 205 | 40 | 217 | 95 | |||||||||
| JS- 203 | 515 | 205 | 40 | 217 | 95 | |||||||||
| 301M | 515 | 205 | 40 | 217 | 95 |
SS seamless pipes made from Grade 304 and with a diameter of 13.7 mm X Sch 40 are highly versatile. Here are some common applications:
Our Stainless Steel Seamless Tube Used In Many Industries & Have Many Application
Tell us the quantity and where it is going. We will confirm stock and come back with price the same working day.