Best Selling 201 304 316 321 Seamless Stainless Steel Pipe Metal Pipe
Benefits of Using 201, 304, 316, and 321 Stainless steel pipes
Stainless steel pipes are widely used in various industries due to their durability, Corrosion resistance, and versatility. Among the different grades of stainless steel, 201, 304, 316, and 321 are some of the most popular choices for Seamless pipes. These grades offer unique properties that make them suitable for different applications, ranging from industrial to residential use.
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One of the key benefits of using 201 stainless steel pipes is their cost-effectiveness. 201 stainless steel is a lower-cost alternative to 304 stainless steel, making it a popular choice for budget-conscious consumers. Despite its lower price point, 201 stainless steel still offers good corrosion resistance and strength, making it suitable for a wide range of applications.
On the other hand, 304 stainless steel pipes are known for their excellent corrosion resistance and High temperature resistance. This grade of stainless steel is commonly used in food processing, chemical processing, and pharmaceutical industries due to its hygienic properties and resistance to corrosion from acids and chemicals. Additionally, 304 stainless steel is easy to clean and maintain, making it a popular choice for applications where cleanliness is essential.
Chemical Composition
C
Mn
P≤
S≤
Si≤
0.06-0.18
0.27-0.63
0.035
0.035
0.25
316 stainless steel pipes are highly corrosion-resistant and are often used in marine environments or applications where exposure to harsh chemicals is a concern. The addition of molybdenum in 316 stainless steel enhances its corrosion resistance, making it suitable for use in aggressive environments. Additionally, 316 stainless steel has excellent strength and durability, making it a reliable choice for demanding applications.
321 stainless steel pipes are known for their high temperature resistance and excellent weldability. This grade of stainless steel is often used in applications where exposure to high temperatures is a concern, such as in exhaust systems, aircraft components, and thermal processing equipment. The titanium content in 321 stainless steel improves its resistance to intergranular corrosion, making it a reliable choice for high-temperature applications.
In addition to their unique properties, 201, 304, 316, and 321 stainless steel pipes are also easy to fabricate and install. Seamless stainless steel pipes are preferred for applications where a smooth, uninterrupted flow is required, such as in fluid transportation or structural applications. The seamless construction of these pipes eliminates the need for Welding, reducing the risk of leaks and ensuring a strong, reliable connection.
Overall, the use of 201, 304, 316, and 321 stainless steel pipes offers numerous benefits, including cost-effectiveness, corrosion resistance, high temperature resistance, and ease of fabrication. Whether you are looking for a budget-friendly option like 201 stainless steel or a high-performance solution like 316 stainless steel, there is a grade of stainless steel pipe to suit your needs. Consider the unique properties of each grade and choose the one that best fits your specific application requirements.
API 5CT L80 Casing TubingGrade Color Codes
Grade
Grade Type
Number and Color of Bands for Product a with Length³ 1.8 m
Color(s) for Couplings
Entire Coupling
Band(s) b, c
1
2
3
4
5
H40
—
None or black band at the manufacturer’s option
None
Same as for pipe
J55 Tubing
—
One bright green
Bright green
None
J55 Casing
—
One bright green
Bright green
One white
K55
—
Two bright green
Bright green
None
N80
1
One red
Red
None
N80
Q
One red, one bright green
Red
Green
R95
—
One brown
Brown
None
L80
1
One red, one brown
Red
One brown
L80
9Cr
One red, one brown, two yellow
None
Two yellow
L80
13Cr
One red, one brown, one yellow
None
One yellow
C90
1
One purple
Purple
None
T95
1
One silver
Silver
None
C110
—
One white, two brown
White
Two brown
P110
—
One white
White
None
Q125
1
One orange
Orange
None
a In the case of coupling Material, unless otherwise specified in the purchase agreement, the manufacturer’s internal requirements shall govern.
b Special clearance couplings shall also have a black band.
c Seal-ring couplings shall also have a blue band.