Aluminium is the most widely used metal in engineering apart from iron. The reason the aluminium is widely used is because the combination of properties makes it one of the most versatile of engineering and construction materials. Aluminium is light in weight, yet some of its alloys have strengths greater than that of structural steel. It has good electrical and thermal conductivities and high reflectivity to both heat and light. It is highly corrosion resistant under a great many service conditions and is nontoxic. Aluminium can be cast,extruded forged, drawn, hot rolled and cold rolled.
The European numbering system (ref EN 573-1:1995 ) identifies the alloy using an identification starting with AW :
A for Aluminium and W for Wrought alloys ...(AB/AC for Cast Alloys-ref EN 1706 /BS EN 1780 ).
This is followed by number ranges for indicating groups of alloys.
Work Hardening Alloys
- En AW-1xxx Pure Aluminium (>99%)
- En AW-3xxx...Aluminium Manganese Alloys AlMn
- En AW-4xxx.. Aluminium Silicon Allosy AlSi
- En AW-5xxx..Aluminium-Magnesium alloys AlMg
Heat Treatable Alloys
- En AW-2xxxx Aluminium Cu alloys AlCu
- En AW-6xxx...Aluminium Magesium Silicon alloys AlMg Si
- En AW-7xxx.. Aluminium Zinc Magnesioum alloys AlZnMg
The alloy condition, or temper as covered in BS EN 515, is denoted by a suffix to the alloy code:
- O for Annealing
- F as fabricated,
- T for heat treatments.
(The T is followed be a number of digits identifying in some detail the heat treatment i.e. The first digit is a precise sequence of events. Subsequent digits: indicate a variation in treatment which significantly alters the characteristics of the product with respect to the original temper.
- H for Strain Hardened material supply.
(The H is followed be a number of digits i.e. ?First digit: type of treatment. ?Second digit: the final degree of strain-hardening, where 8 is normally the hardest (e.g. 4 = half hard). ?Third digit: (when used) a variation of a two-digit temper.)
Stainless Steel Pipe Specifications
Stainless Steel Tube Dimension
Stainless Steel Tubes L H Grade
Stainless Steel Properties Description
Stainless Steel Cold Working Properties
304/304L/304LN/304H tubing and pipe
Stainless Steel Pipes Sizes
Stainless Steel-ASTM-Material Grade-Standard
Seawater Resistance of Stainless Steel Tubes
ASTMA312/A213/A269/A511/A376/A789/A790 DIN17456/17458 JIS3459/3463 DNV Chemical Compostion
International Conversion Table For Stainless Steel
Stainless Steel Relative Cost Data
Select Stainless Steel Grade by Characteristics and Usage
Selection of Stainless Steels from Corrosion Resistance, Mechanical Physical Properties
Select Materials for Heat Exchanger Tubes with Substantial Pressure difference
Select Stainless Steel by high temperature condition refer table
Properties at Cryogenic Temperatures of Stainless Steel Tubes
The Effect of carbon on corrosion resistance-304 316 304L 316L
Comparison of grades 316/1.4401 and 316L/1.4404/1.4432 to 316Ti /1.4571
The difference between Stainless Steel Tubing and Cooper Tubing in Shell and Tube Heat Exchanger
Various elements on the performance of stainless steel and the impact and role of organizations
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