Stainless steel is a versatile and durable Material that is commonly used in a wide range of industries, from construction to manufacturing. One of the most popular forms of stainless steel Tubing is ASTM A312, which is known for its high quality and reliability. In particular, factory cold drawn ASTM A312 stainless steel tubes and pipes are highly sought after for their superior properties and benefits.
One of the main advantages of using factory cold drawn ASTM A312 stainless steel tubes and pipes is their exceptional strength and durability. Cold drawing is a process that involves pulling a metal rod or tube through a die to reduce its diameter and increase its Length. This process results in a Seamless and uniform product that is free from defects and imperfections. As a result, cold drawn stainless steel tubes and pipes have a higher Tensile strength and are more resistant to corrosion and wear compared to other types of tubing.
In addition to their strength and durability, factory cold drawn ASTM A312 stainless steel tubes and pipes are also known for their excellent thermal conductivity. This makes them ideal for applications where heat transfer is important, such as in heat exchangers, boilers, and condensers. The smooth and uniform surface of cold drawn stainless steel tubing allows for efficient heat transfer, resulting in improved performance and energy efficiency.
Furthermore, factory cold drawn ASTM A312 stainless steel tubes and pipes are highly resistant to corrosion, making them suitable for use in harsh environments and corrosive substances. The cold drawing process removes impurities and contaminants from the material, resulting in a clean and pure product that is less prone to rust and degradation. This makes cold drawn stainless steel tubing a cost-effective and low-maintenance solution for a wide range of applications.
Another benefit of using factory cold drawn ASTM A312 stainless steel tubes and pipes is their versatility and adaptability. Stainless steel is a highly malleable material that can be easily shaped and formed into various sizes and shapes to meet specific requirements. Cold drawn tubing can be customized to fit tight tolerances and specifications, making it suitable for a wide range of applications in different industries.
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In conclusion, factory cold drawn ASTM A312 stainless steel tubes and pipes offer a wide range of benefits that make them a popular choice for many industries. From their exceptional strength and durability to their excellent thermal conductivity and Corrosion resistance, cold drawn stainless steel tubing is a reliable and cost-effective solution for a variety of applications. Whether you are looking for a high-performance material for heat transfer or a durable and low-maintenance option for corrosive environments, cold drawn stainless steel tubing is a versatile and reliable choice.
Comparison of Different Grades (201, 304, 304L, 316, 316L, 316ti, 309S, 310S, 321, 410, 430) in Seamless/Welded Stainless Steel tube/Pipe Manufacturing
Stainless steel tubes and pipes are essential components in various industries, including construction, automotive, and manufacturing. When it comes to choosing the right grade of stainless steel for your project, it’s important to understand the differences between the various grades available. In this article, we will compare different grades of stainless steel, including ASTM A312 AISI 201, 304, 304L, 316, 316L, 316ti, 309S, 310S, 321, 410, and 430, in seamless/welded tube and pipe manufacturing.
One of the most commonly used grades of stainless steel is AISI 304. This grade is known for its excellent corrosion resistance, good weldability, and versatility. AISI 304L is a low-carbon version of AISI 304, which offers improved weldability and reduced risk of sensitization. Both AISI 304 and 304L are widely used in applications where corrosion resistance is a primary concern, such as in the food and beverage industry.
AISI 316 and 316L are another popular choice for stainless steel tubes and pipes. These grades offer even better corrosion resistance than AISI 304, particularly in environments with high chloride levels. AISI 316ti is a titanium-stabilized version of AISI 316, which provides enhanced resistance to intergranular corrosion. These grades are commonly used in marine applications, chemical processing, and medical devices.
For applications that require High temperature resistance, grades like AISI 309S and 310S are ideal choices. These grades offer excellent oxidation resistance at elevated temperatures, making them suitable for use in furnace components, heat exchangers, and other high-temperature applications. AISI 321 is another heat-resistant grade that offers good creep strength and resistance to intergranular corrosion.
When it comes to applications that require high strength and Hardness, grades like AISI 410 and 430 are commonly used. AISI 410 is a martensitic stainless steel that offers good corrosion resistance and high strength, making it suitable for use in applications like pump shafts, valve components, and fasteners. AISI 430 is a ferritic stainless steel that offers good corrosion resistance and high-temperature oxidation resistance, making it a popular choice for applications like automotive trim and kitchen appliances.
Labels a
Calculated Mass c
Nominal Linear Mass T& C b,c
Wall Thick- ness
em, Mass Gain or Loss Due to End Finishing d
Outside Diameter
Inside Diameter
Drift Diameter
Plain- end
kg
Round Thread
Buttress Thread
wpe
D
kg/m
t
D
mm
kg/m
Short
Long
RC
SCC
mm
mm
mm
1
2
3
4
5
6
7
8
9
10
11
12
8 5/8
24
219.08
35.72
6.71
205.66
202.48
35.14
10.93
—
—
—
8 5/8
28
219.08
41.67
7.72
203.64
200.46
40.24
10.07
— 12.44
— 12.57
— 2.51
8 5/8
32
219.08
47.62
8.94
201.2
200.02 e 198.02 195.58
46.33
9.39
12.44
12.57
2.51
8 5/8
32
219.08
47.62
8.94
201.2
193.68 e
46.33
9.39
11.6
11.68
1.62
8 5/8
36
219.08
53.57
10.16
198.76
193.04
52.35
8.72
10.73
10.77
0.71
8 5/8
40
219.08
59.53
11.43
196.22
190.5
58.53
—
10.73
10.77
0.71
8 5/8
40
219.08
59.53
11.43
196.22
187.6
58.53
—
9.88
9.87
–0.20
8 5/8
44
219.08
65.48
12.7
193.68
64.64
—
8.88
8.85
–1.21
8 5/8
49
219.08
72.92
14.15
190.78
71.51
—
9 5/8
32.3
244.48
48.07
7.92
228.6
224.66
46.2
11
— 14.48
— 13.87
— 2.74
9 5/8
36
244.48
53.57
8.94
226.6
222.63
51.93
10.36
13.59
12.97
1.84
9 5/8
40
244.48
59.53
10.03
224.4
222.25 e 220.45 218.41 218.41 216.54 216.54
57.99
9.69
13.59
12.97
1.84
9 5/8
40
244.48
59.53
10.03
224.4
215.90 e
57.99
9.69
12.78
12.15
1.01
9 5/8
43.5
244.48
64.74
11.05
222.4
215.90 e 212.83 212.83
63.61
—
12.84 f
12.15
1.01
9 5/8
43.5
244.48
64.74
11.05
222.4
212.72 e
63.61
—
12.03
11.39
0.25
9 5/8
47
244.48
69.94
11.99
220.5
212.72 e 210.29 210.29 209.58 206.38 203.23 200.02
68.75
—
12.09 f
11.39
0.25
9 5/8
47
244.48
69.94
11.99
222.5
68.75
—
10.57
9.92
–1.22
9 5/8
53.5
244.48
79.62
13.84
216.8
78.72
—
10.63 f
9.92
–1.22
9 5/8
53.5
244.48
79.62
13.84
216.8
78.72
—
10.57
9.92
–1.22
9 5/8
53.5
244.48
79.62
13.84
216.8
78.72
—
10.63 f
9.92
–1.22
9 5/8
53.5
244.48
79.62
13.84
216.8
78.72
—
9.58
8.92
–2.22
9 5/8
58.4
244.48
86.91
15.11
214.25
85.47
—
9.65 f
8.92
–2.22
9 5/8
58.4
244.48
86.91
15.11
214.25
85.47
—
9.58
8.92
–2.22
9 5/8
58.4
244.48
86.91
15.11
214.25
85.47
—
9.65 f
8.92
–2.22
9 5/8
58.4
244.48
86.91
15.11
214.25
85.47
—
—
—
—
9 5/8
59.4
244.48
88.4
15.47
213.5
87.37
—
—
—
—
9 5/8
64.9
244.48
96.58
17.07
210.3
95.73
—
—
—
—
9 5/8
70.3
244.48
104.62
18.64
207.2
103.82
—
—
—
—
9 5/8
75.6
244.48
112.51
20.24
204
111.93
—
In terms of manufacturing processes, seamless and welded tubes and pipes offer different advantages. Seamless tubes are produced by piercing a solid billet of steel to create a hollow tube, while welded tubes are made by Welding together strips of steel. Seamless tubes are generally considered to have better corrosion resistance and Mechanical properties than welded tubes, but they are also more expensive to produce. Welded tubes, on the other hand, are more cost-effective and can be produced in larger sizes and lengths.
NPS
OD
WT
INCH
MM
SCH10
SCH20
SCH30
STD
SCH40
SCH60
XS
SCH80
SCH100
SCH120
SCH140
SCH160
1/2″
21.3
2.11
2.41
2.77
2.77
3.73
3.73
4.78
3/4″
26.7
2.11
2.41
2.87
2.87
3.91
3.91
5.56
1″
33.4
2.77
2.9
3.38
3.38
4.55
4.55
6.35
1.1/4″
42.2
2.77
2.97
3.56
3.56
4.85
4.85
6.35
1.1/2″
48.3
2.77
3.18
3.68
3.68
5.08
5.08
7.14
2″
60.3
2.77
3.18
3.91
3.91
5.54
5.54
8.74
2.1/2″
73
3.05
4.78
5.16
5.16
7.01
7.01
9.53
3″
88.9
3.05
4.78
5.49
5.49
7.62
7.62
11.13
3.1/2″
101.6
3.05
4.78
5.74
5.74
8.08
8.08
4″
114.3
3.05
4.78
6.02
6.02
8.56
8.56
11.13
13.49
5″
141.3
3.4
6.55
6.55
9.53
9.53
12.7
15.88
6″
168.3
3.4
7.11
7.11
10.97
10.97
14.27
18.26
8″
219.1
3.76
6.35
7.04
8.18
8.18
10.31
12.7
12.7
15.09
18.26
20.62
23.01
10″
273
4.19
6.35
7.8
9.27
9.27
12.7
12.7
15.09
18.26
21.44
25.4
28.58
12″
323.8
4.57
6.35
8.38
9.53
10.31
14.27
12.7
17.48
21.44
25.4
28.58
33.32
14″
355.6
6.35
7.92
9.53
9.53
11.13
15.09
12.7
19.05
23.83
27.79
31.75
35.71
16″
406.4
6.35
7.92
9.53
9.53
12.7
16.66
12.7
21.44
26.19
30.96
36.53
40.19
18″
457.2
6.35
7.92
11.13
9.53
14.27
19.05
12.7
23.83
39.36
34.93
39.67
45.24
20″
508
6.35
9.53
12.7
9.53
15.09
20.62
12.7
26.19
32.54
38.1
44.45
50.01
22″
558.8
6.35
9.53
12.7
9.53
22.23
12.7
28.58
34.93
41.28
47.63
53.98
24″
609.6
6.35
9.53
14.27
9.53
17.48
24.61
12.7
30.96
38.89
46.02
52.37
59.54
26″
660.4
7.92
12.7
9.53
12.7
28″
711.2
7.92
12.7
15.88
9.53
12.7
In conclusion, choosing the right grade of stainless steel for your tube and pipe manufacturing project depends on a variety of factors, including corrosion resistance, temperature resistance, strength, and cost. By understanding the differences between grades like AISI 201, 304, 304L, 316, 316L, 316ti, 309S, 310S, 321, 410, and 430, as well as the advantages of seamless and welded manufacturing processes, you can make an informed decision that meets your specific requirements.
AISI 316 and 316L are another popular choice for stainless steel tubes and pipes. These grades offer even better corrosion resistance than AISI 304, particularly in environments with high chloride levels. AISI 316ti is a titanium-stabilized version of AISI 316, which provides enhanced resistance to intergranular corrosion. These grades are commonly used in marine applications, chemical processing, and medical devices.
For applications that require High temperature resistance, grades like AISI 309S and 310S are ideal choices. These grades offer excellent oxidation resistance at elevated temperatures, making them suitable for use in furnace components, heat exchangers, and other high-temperature applications. AISI 321 is another heat-resistant grade that offers good creep strength and resistance to intergranular corrosion.
When it comes to applications that require high strength and Hardness, grades like AISI 410 and 430 are commonly used. AISI 410 is a martensitic stainless steel that offers good corrosion resistance and high strength, making it suitable for use in applications like pump shafts, valve components, and fasteners. AISI 430 is a ferritic stainless steel that offers good corrosion resistance and high-temperature oxidation resistance, making it a popular choice for applications like automotive trim and kitchen appliances.
