The item
321 seamless Pipes with an outside diameter of 48.3 mm in schedule 40. 304 stabilised with titanium. Resists sensitisation in the 425–815 degrees C range.
321 Seamless PipesIn stock
321 seamless pipes
OD 48.3 mm × SCH 40
This is a size we hold rather than one we have to roll. 304 stabilised with titanium. Resists sensitisation in the 425–815 degrees C range. Supplied with a mill test certificate to EN 10204 3.1 as standard.
OD 48.3 mm × SCH 40UNS S32100 / S32109EN 1.4541 / 1.4940HSN 7304
Properties
Austenitic- PREN
- 19
- Relative cost
- 1.30×
- Max service temp
- 900 °C
- Magnetic
- No
- Weldability
- Excellent
- Machinability
- Fair
Pitting resistance equivalent. Higher resists chlorides better.
Indexed to 304. Indicative, for specification triage.
01Product description
321 stainless steel seamless Pipes, OD 48.3 mm × SCH 40: stockist and supplier in Mumbai
Rajgranth Metal & Alloys stocks and supplies 321 seamless Pipes, OD 48.3 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.
Grade and designations
Stainless Steel 321 and 321H, designated UNS S32100 / S32109, EN 1.4541 / 1.4940, AISI 321 / 321H, JIS SUS321 / SUS321H, GB S32168 / S32169 and Werkstoff X6CrNiTi18-10 / X7CrNiTi18-10.
Standards and finishes
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.
Where it is used
exhaust manifolds and expansion joints, refinery heater and furnace components, aircraft and aerospace piping and high-temperature process vessels. We supply across India and export to markets in the Middle East, Africa, Europe, Asia, North America and South America.
Ordering
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.
Also searched as
- 321 seamless Pipes, OD 48.3 mm × SCH 40 supplier
- 321 48.3 mm seamless Pipes stockist in Mumbai
- stainless Steel Seamless Pipes 48.3 mm
This size
07 rows- Grade
- 321
- Product
- Seamless Pipes
- Outside diameter
- 48.3 mm
- Schedule
- SCH 40
- Length
- 5 m6.5 m
Cut to length on request
- Ends
- PlainBevelled
- Certification
- EN 10204 3.1
3.2 with third-party inspection on request
Other sizes in this grade are supplied to order — usually from stock.
Surface finishes
08- Bright Annealed (CFA)
- Solution Annealed (CFD)
- Electro Polished (EP)
- Polished (APP)
- Annealed and Pickled (AP)
- Mirror Polish
- Matt Polish
- Cold Drawn
Standards
10- 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
- ASTM A511
- ASTM B163 / ASME SB-163
- ASTM B407 / ASME SB-407
01Also held
Other 321 seamless pipes sizes
Complete technical reference
SS seamless pipes grade 321 Diameter 48.3 mm X Sch 40
The full detail for this product as supplied from our Mumbai stockyard: sizes, grades, standards, tolerances, tests and applications.
SS seamless pipes grade 321 Diameter 48.3 mm X Sch 40 Stockholders, Suppliers & Exporters in India.
Rajgranth Metals is a reknown manufacturer, exporter, and stockholder of Stainless Steel Pipes Grade 321 in Mumbai, India. Stainless steel (SS) seamless pipes are essential components in many industries, from oil and gas to aerospace. Known for their strength, durability, and resistance to harsh environments, these pipes provide a reliable solution for transporting fluids or gases under high pressure and temperature. Among the many varieties of stainless steel pipes, SS seamless pipes grade 321 stand out due to their unique properties, especially in specific dimensions like Diameter 48.3 mm X Sch 40.
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What is SS Seamless Pipes?
Seamless pipes are a type of stainless steel pipe manufactured without a weld joint. This gives them a uniform structure and better mechanical properties, making them ideal for high-pressure environments.
Characteristics of Seamless Pipes: Seamless pipes are characterized by their smooth finish and uniform cross-section, which allows them to handle higher pressure compared to welded pipes.
Manufacturing Process of Seamless Pipes: These pipes are typically created using either the hot-rolling or cold-drawing process. A solid billet of steel is heated and then pierced through its center, creating a hollow tube that is stretched and formed into the required pipe dimensions.
Benefits of Using Seamless Pipes Over Welded Pipes: Seamless pipes have greater structural integrity, making them more resistant to pressure, stress, and temperature variations, which is why they are preferred in critical installations.
What is 316L Stainless Steel?
316L stainless steel is an austenitic stainless steel containing molybdenum, which enhances its resistance to corrosion from chloride and acidic environments. It’s commonly used in applications requiring high resistance to pitting and crevice corrosion.
While both 316 and 316L share similar chemical compositions, the key difference lies in the carbon content. 316L has a lower carbon percentage (max 0.03%), which makes it less prone to intergranular corrosion after welding, making it ideal for applications that require a lot of fabrication.
Because 316L is low in carbon and resistant to contamination, it’s widely used in the food processing and pharmaceutical sectors where purity and cleanliness are paramount.
What Makes Grade 321 Stainless Steel Unique?
Grade 321 is part of the 300-series austenitic stainless steels, a family known for its impressive combination of corrosion resistance, strength, and heat resistance. The key difference in grade 321 is the addition of titanium. This element helps stabilize the structure of the steel, particularly during high-temperature applications.
- Composition: Grade 321 contains a mix of iron, chromium, nickel, and titanium, with a chromium content between 17% and 19%. This makes it resistant to oxidation and corrosion.
- Key Properties Thanks to titanium, grade 321 is excellent for use in environments where high heat is present.
Diameter 48.3 mm and Schedule 40: What Does It Mean?
When you see specifications like "Diameter 48.3 mm X Sch 40," you may wonder what this refers to. Let’s break it down:
- Diameter 48.3 mm: This refers to the outside diameter of the pipe. At 48.3 mm, the pipe is of medium size, suitable for various industrial applications where precision in fluid flow or pressure resistance is required.
- Schedule 40 (Sch 40): Pipe schedules indicate the wall thickness of the pipe. Schedule 40 means the pipe has a medium wall thickness that balances strength and flow capacity, often used in plumbing, water systems, and industrial piping applications
Stainless Steel Pipes Dimension – (S.S. Pipes)
3 entries
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
- ASTM A 312 TP 304
- ASTM A 312 TP 316L
- ASTM A 312 TP 317L
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
22 entries
| 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 |
|---|
Chemical Composition
22 entries
| 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 |
Applications of SS Seamless Pipes Grade 321 Diameter 48.3 mm X Sch 40
42 entries
SS seamless pipes made from Grade 321 and with a diameter of 48.3 mm X Sch 40 are highly versatile. Here are some common applications:
- Plumbing and Piping Systems: Ideal for water lines, especially in residential and commercial buildings where durability and corrosion resistance are key.
- Chemical Industry: The excellent corrosion resistance of SS 304 makes it suitable for transporting aggressive chemicals.
- Marine and Coastal Uses: Given its resistance to saltwater corrosion, SS 304 is often used in marine applications such as shipbuilding and coastal infrastructure.
- Automotive Industry: Its high strength-to-weight ratio makes SS seamless pipes perfect for use in automotive exhaust systems and structural components
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321 / 321H applications
04- Exhaust manifolds and expansion joints
- Refinery heater and furnace components
- Aircraft and aerospace piping
- High-temperature process vessels
321 seamless pipes, OD 48.3 mm × SCH 40.
Tell us the quantity and where it is going. We will confirm stock and come back with price the same working day.