GB/T 5312 Q235 Hot Rolled Carbon Seamless Steel Tubes

Instruction

GB/T 5312 Q235 Hot Rolled Carbon And Carbon Manganese Steel Seamless Steel Tubes For Ships

 

Material
The material used in GB/T 5312 Q235 Hot Rolled Carbon And Carbon Manganese Steel Seamless Steel Tubes For Ships is carbon steel and carbon manganese steel.

 

Specification
The specification of GB/T 5312 Q235 Hot Rolled Carbon And Carbon Manganese Steel Seamless Steel Tubes For Ships includes the following aspects:
• Outer Diameter: 5-120mm
• Wall Thickness: 0.5-10mm
• Length: 5-12m

 

Chemical Composition
The chemical composition of GB/T 5312 Q235 Hot Rolled Carbon And Carbon Manganese Steel Seamless Steel Tubes For Ships is as follows:

Element	Composition
Carbon (C)	0.12% maximum
Manganese	0.30-0.70%
Silicon	0.30% maximum
Sulfur	0.045% maximum
Phosphorus	0.045% maximum

 

Mechanical Properties

The mechanical properties of GB/T 5312 Q235 Hot Rolled Carbon And Carbon Manganese Steel Seamless Steel Tubes For Ships are as follows:

Property	Value
Tensile Strength	375-500 MPa
Yield Strength	235 MPa minimum
Elongation	25% minimum
Hardness	119-235 HB
Impact Energy	27J minimum (at 20°C)

 

Steel Grade
The steel grade for GB/T 5312 Q235 Hot Rolled Carbon And Carbon Manganese Steel Seamless Steel Tubes For Ships is Q235.

 

Application
GB/T 5312 Q235 Hot Rolled Carbon And Carbon Manganese Steel Seamless Steel Tubes For Ships are primarily used in the shipbuilding industry for various applications, including structural components, piping systems, and machinery parts. These seamless steel tubes possess excellent weldability, strength, and corrosion resistance, making them suitable for the harsh marine environment.