ASTM A333 Carbon Welded Steel Pipe for Low Temperature Service

Instruction

ASTM A333 Carbon Welded Steel Pipe for Low Temperature Service

 

Material
The ASTM A333 Carbon Welded Steel Pipe is made using low carbon steel, known for its excellent weldability and toughness at low temperatures. This material is specifically designed to be used in cryogenic applications where low-temperature service is required.

 

Specification
The ASTM A333 specification covers seamless and welded steel pipe specifically designed for low-temperature service. It includes various grades of carbon and alloy steel pipes that are intended for use in temperatures as low as -150°F (-101°C).

 

Chemical Composition
The chemical composition of ASTM A333 Carbon Welded Steel Pipe varies depending on the specific grade. However, the typical composition includes the following elements:

Element	Composition (Percentage)
Carbon	0.30% max
Manganese	0.40 - 1.06%
Phosphorus	0.025% max
Sulfur	0.025% max
Silicon	0.10% max
Nickel	3.18 - 3.82%

 

Mechanical Properties
The ASTM A333 Carbon Welded Steel Pipe exhibits excellent mechanical properties, making it suitable for low-temperature applications. The following table provides an overview of the typical mechanical properties of these pipes:

Property	Value
Tensile Strength	Ranging from 60,000 to 100,000 psi (415 - 690 MPa)
Yield Strength	Ranging from 35,000 to 65,000 psi (240 - 450 MPa)
Elongation at Break	Minimum 30%
Impact Toughness at Low Temp.	Minimum average of 20ft-lb (27 J) at -50°F (-45°C)
Hardness (Brinell, HB)	Maximum 241

 

Steel Grade
The ASTM A333 specification includes multiple grades of carbon and alloy steel pipes for low-temperature service. The most commonly used steel grades within this specification are:
• Grade 1
• Grade 3
• Grade 6
• Grade 7
• Grade 8
• Grade 9
• Grade 10
Each grade has its specific chemical composition and mechanical properties to suit various low-temperature applications.

 

Application
Due to its excellent low-temperature toughness and corrosion resistance, ASTM A333 Carbon Welded Steel Pipe finds wide application in various industries including:
• Oil and gas transportation
• Cryogenic processing
• Power generation
• Chemical processing
• Industrial refrigeration