Product Parameters
A691 Mild Steel Seamless Pipe
Material
A691 Low Carbon Steel Seamless Pipe is made of high-quality low-carbon steel. It is known for its excellent formability, weldability, and versatility, and is used in high-temperature and high-pressure fields, such as oil and gas transmission pipelines.
Specification
The A691 Mild Steel Seamless Pipe is manufactured according to the following specifications:
|
Specification |
Value |
|
Size Range |
1/2" to 24" |
|
Wall Thickness Range |
SCH 10 to SCH XXS |
|
Length |
Random or Fixed Length |
|
End Connections |
Plain End, Beveled End, Threaded |
|
Standards |
ASTM A691, ASME SA691 |
Chemical Composition
The chemical composition of the A691 Mild Steel Seamless Pipe is as follows:
|
Element |
Composition (%) |
|
Carbon (C) |
0.20 max |
|
Manganese (Mn) |
0.90-1.40 |
|
Phosphorus (P) |
0.025 max |
|
Sulfur (S) |
0.025 max |
|
Silicon (Si) |
0.15-0.50 |
|
Chromium (Cr) |
0.50-0.80 |
|
Molybdenum (Mo) |
0.45-0.65 |
Mechanical Properties
The A691 Mild Steel Seamless Pipe exhibits the following mechanical properties:
|
Property |
Value |
|
Tensile Strength |
60,000-85,000 psi |
|
Yield Strength |
35,000-60,000 psi |
|
Elongation |
20% min |
|
Hardness |
80 HRB max |
Physical Properties
The physical properties of the A691 Mild Steel Seamless Pipe are as follows:
|
Property |
Value |
|
Density |
7.85 g/cm³ |
|
Melting Point |
1420-1460°C |
|
Thermal Conductivity |
50.2 W/m·K |
|
Electrical Resistivity |
0.0000159 ohm·m |
Process Performance
The A691 Mild Steel Seamless Pipe is manufactured using the seamless process. This process involves heating a solid billet of mild steel and then piercing it to form a hollow tube. The seamless process ensures a uniform and defect-free pipe with excellent dimensional accuracy.
Application
The A691 Mild Steel Seamless Pipe is widely used in various industries for different applications. Some common applications include:
-
· Oil and gas industry
-
· Petrochemical industry
-
· Power plants
-
· Construction
-
· Water supply systems
-
· Structural engineering
-
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