SS seamless pipes grades 321 diameter 60.3mm sch40 manufacturers & stockholders in Mumbai, India

SS seamless pipes grade 321 Diameter 60.3 mm X Sch 40 Stockholders, Suppliers & Exporters in India.

Rajgranth Metals is a leading manufacturer, stockholders & exporters of Stainless steel seamless grade 321 in Mumbai, India. Stainless steel (SS) seamless pipes have become a cornerstone of industrial infrastructure, offering durability, corrosion resistance, and high performance in demanding applications. One particular standout is SS seamless pipes grade 321, especially in the dimensions of Diameter 60.3mm X Sch 40. In this article, we’ll dive into the specifics of this material, explore its industrial relevance, and explain why it's such a popular choice.

Grade 321 stainless steel is a titanium-stabilized austenitic stainless steel, known for its excellent resistance to intergranular corrosion and its ability to perform at elevated temperatures. Unlike other stainless steel grades, SS 321 is specifically designed to handle high-temperature oxidation while maintaining its mechanical properties.

SS seamless pipes grade 321 Diameter 60.3 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 60.3 mm and Schedule 40: What Does It Mean?

When you see specifications like "Diameter 60.3 mm X Sch 40," you may wonder what this refers to. Let’s break it down:

Diameter 60.3 mm: This refers to the outside diameter of the pipe. At 60.3 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)

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

inch

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)

1/8

10.3

1.2

0.20

1.24

0.28

1.5

0.33

1.73

0.37

2.41

0.47

1/4

13.7

1.2

0.37

1.65

0.49

2.00

0.58

2.24

0.630

3.02

0.80

3/8

17.1

1.2

0.47

1.65

0.63

2.00

0.74

2.31

0.840

3.20

1.10

1/2

21.3

1.65

0.80

2.11

1.00

2.30

1.07

2.77

1.27

3.73

1.62

4.75

1.94

7.47

2.55

3/4

26.7

1.65

1.03

2.11

1.28

2.55

1.52

2.87

1.69

3.91

2.20

5.56

2.90

7.82

3.64

33.4

1.65

1.30

2.77

2.09

2.55

1.94

3.38

2.50

4.55

3.24

6.35

4.24

9.09

5.45

1.1/4

42.2

1.65

2.77

2.70

3.00

2.90

3.56

3.39

4.85

4.47

6.35

5.61

9.70

7.77

1.1/2

48.3

1.65

1.91

2.77

3.11

3.00

3.55

3.68

4.05

5.08

5.41

7.14

7.25

11.1

10.18

60.3

1.65

2.40

2.77

3.93

3.00

4.24

3.91

5.44

5.54

7.48

8.74

11.11

11.07

13.44

2.1/2

73.0

2.11

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

88.9

2.11

4.51

3.05

6.45

4.00

8.37

5.49

11.29

7.62

15.27

11.1

21.30

15.24

27.68

100

114.3

2.11

5.84

3.05

8.36

4.50

12.18

6.02

16.07

8.56

22.32

13.49

33.54

17.12

41.03

125

141.3

2.77

9.47

3.40

11.57

5.00

16.80

6.55

21.8

9.53

30.97

15.88

49.11

19.05

57.43

150

168.3

2.77

11.32

3.40

13.84

6.35

25.36

7.11

28.26

10.97

42.56

18.25

67.53

21.95

79.22

200

219.1

2.77

14.79

3.76

19.96

6.35

33.31

8.18

42.55

12.7

64.64

23.01

111.27

22.23

107.92

250

273.1

3.40

22.63

4.19

27.78

6.35

41.77

9.27

60.31

12.7

96.01

28.58

172.33

25.40

155.15

300

323.8

3.96

31.25

4.57

36.00

6.35

49.7

9.53

73.88

12.7

132.05

33.32

238.76

25.40

186.97

350

355.6

3.96

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

406.4

4.19

41.56

4.78

47.29

7.92

77.83

12.7

123.30

450

457.2

4.19

46.81

4.78

53.26

7.92

87.71

14.27

155.80

500

508.0

4.78

59.25

5.54

68.61

9.53

117.14

15.09

183.42

600

610.0s

5.54s

82.47

6.35

94.45

9.53

141.12

17.48

255.41

Chemical Composition

* Thickness of 1.27mm & below will have elongation of 20% min.
CHEMICAL COMPOSITION ( IN PERCENTAGE )
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

Chemical Composition

MECHANICAL PROPERTIES
Grade	Tensile Strength Mpa, (Min)	Yield Strength Mpa, (Min)	%Age Elongation in 50mm gauge length min	Hardness (Max)
Grade	Tensile Strength Mpa, (Min)	Yield Strength Mpa, (Min)	%Age Elongation in 50mm gauge length min	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 60.3 mm X Sch 40

SS seamless pipes made from Grade 321 and with a diameter of 60.3 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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SS seamless pipes grade 321 Diameter 60.3 mm X Sch 40

SS seamless pipes grade 321 Diameter 60.3 mm X Sch 40 Stockholders, Suppliers & Exporters in India.

What is SS Seamless Pipes?

What is 316L Stainless Steel?

What Makes Grade 321 Stainless Steel Unique?

Diameter 60.3 mm and Schedule 40: What Does It Mean?

Stainless Steel Pipes Dimension – (S.S. Pipes)

Chemical Composition

Chemical Composition

Applications of SS Seamless Pipes Grade 321 Diameter 60.3 mm X Sch 40

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SS seamless pipes grade 321 Diameter 60.3 mm X Sch 40

SS seamless pipes grade 321 Diameter 60.3 mm X Sch 40 Stockholders, Suppliers & Exporters in India.

What is SS Seamless Pipes?

What is 316L Stainless Steel?

What Makes Grade 321 Stainless Steel Unique?

Diameter 60.3 mm and Schedule 40: What Does It Mean?

Stainless Steel Pipes Dimension – (S.S. Pipes)

Chemical Composition

Chemical Composition

Applications of SS Seamless Pipes Grade 321 Diameter 60.3 mm X Sch 40

Ready To Get Started? Talk To Us Today

QUICK LINKS

OUR PRODUCTS

ADDRESS

Ready To Get Started?
Talk To Us Today