Seamless Steel Tube for Heat Exchanger and Condenser
Should cold-rolled or hot-rolled tubes be selected for heat exchangers?
Cold-rolled
tubes are more suitable for heat exchangers. The cold-rolling process offers
the following advantages:
1.
Surface Quality and Mechanical Performance:
Cold
rolling allows metal materials to be processed at room temperature, resulting
in improved mechanical properties and surface quality. Cold-rolled tubes have
smooth surfaces and high dimensional accuracy, which enhances heat exchange
efficiency.
2.
Corrosion Resistance and Pressure Endurance:
The
cold-rolling process refines the metal's grain structure, improving its
strength and toughness. This makes cold-rolled tubes more resistant to
corrosion, high temperatures, and pressure, making them ideal for harsh
environments.
3.
Manufacturing Precision:
Cold-drawn
tubes have high manufacturing precision and uniform wall thickness, improving
the seal and pressure resistance of the piping.
4.
Comparison with Hot-Rolled Tubes:
While
hot-rolled tubes offer higher production efficiency and lower costs, their
surface quality and mechanical properties are inferior to those of cold-rolled
tubes. Hot rolling can introduce residual stress within the metal, affecting
its overall and localized buckling characteristics. Additionally, the surface
of hot-rolled tubes tends to be rough, and their structure and properties are
less uniform than those of cold-rolled tubes.
Conclusion:
Cold-rolled
tubes are more widely used in heat exchangers, especially in high-temperature,
high-pressure, and corrosive environments, where they demonstrate superior
stability and durability.
Seamless Steel Tube for Heat Exchanger and
Condenser
DIN17175 ST35.8/ST45.8/15Mo3/10CrMo910
EN10216-1 P235TR1/P235TR2/P265TR1/P265TR2
EN10216-2 P235GH/P265GH/13CrMo4-5/10CrMo9-10
Welcome
to send us inquiry for competitive price at any time.
Shanghai
ShengQiu Materails Co., Ltd
WhatsApp:
008613761124029
Email:
sales@sqsteelpipe.com
Website:
www.sqsteelpipe.com
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