7001-T6 Silver anodized aluminum round tube round aluminum pipe factory aluminum pipe profiles
The Difference Between a Seamless Tube and a Slit Tube
A seamless tube is a tube that does not have any welding seam. A seamless tube may also be known as a seamless pipe.
It differs from the main slit tube in that
Aluminum ingot processing method
Indirect extrusion (seamless tube) surface turning, no scale involved.
Direct extrusion (slit tube) of the skin without turning, the product may be involved in the oxide layer.
Status of aluminum ingot and container
Seamless pipe flow, frictionless;Uniform flow of metal;
There is relative friction in the slit pipe. Uneven metal flow; The product contains coarse crystals.
Product appearance
The inner and outer walls of seamless tube are smooth and clean.No burning or cracking on the surface;
The appearance of slit tube is generally smooth.
Mechanical properties
Seamless tube product head and tail metal flow uniformity; High dimensional accuracy; Good fatigue resistance; Consistent mechanical properties;No lamellar tissue.
Metal flow from end to end of products with slit pipes is not uniform; Mechanical properties inconsistent; Lamellar tissue is easy to appear.
Compare with slit tube the advantage as follow
Seamless tube is especially suitable for extrusion of alloy bars and tubes with super hardness (such as alloy 2014, alloy 2024, alloy 2A21,alloy 2017, alloy 5052, alloy 5083,alloy5757, alloy7075, alloy 7005 etc).
Slit tubes are suitable for extrusion of general hardness of alloy products of general added value.(such as alloy6063, alloy 6061, alloy 6082 series,alloy 3003,alloy 1070)
Economy
Seamless tube relatively high price, suitable for manufacturing high-precision products.
Slit tubes are relatively inexpensive and suitable for general purpose products.
Main Features and Application of Alloy 2024 / 7075 Seamless Tube
Features
High Strength Heat treatable alloy.
High precision tolerance by cold drawn.
Good mechanical properties.
Good usability.
Easy to process, good wear resistance.
Good corrosion resistance and oxidation resistance.
Application
The aerospace industry, template, fixture, military precision parts, CNC machining, mechanical equipment, mold processing.
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