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6061-T6 Aluminum

German translation: thermally treated

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GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
English term or phrase:T6 Aluminum
German translation:thermally treated
Entered by: Vidmantas Stilius
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03:04 May 23, 2001
English to German translations [PRO]
Tech/Engineering
English term or phrase: 6061-T6 Aluminum
What does the T stand for in this value?
SilkeN
thermally treated
Explanation:
Hope it helps:

KAISER ALUMINUM TECHNICAL REFERENCE LIBRARY No. 1012

Aluminum Alloys, Tempers and Terminology
Alloy Designation System
A system for designating wrought aluminum and wrought aluminum alloys was established by the Aluminum Association. Specific limits for chemical composition to which conformance is required are provided by applicable product standards.

Wrought Aluminum and Aluminum Alloy Designation System
A system of four-digit numerical designations is used to identify wrought aluminum and wrought aluminum alloys.

The first digit indicates the alloy group as follows:

Aluminum, 99.00% minimum and greater 1XXX

Aluminum alloys grouped by major alloying elements

Copper (Cu). 2XXX
Manganese (Mn) 3XXX
Silicon (Si) 4XXX
Magnesium (Mg) 5XXX
Magnesium and Silicon (Mg and Si) 6XXX
Zinc (Zn) 7XXX
Other elements 8XXX
Unused series 9XXX
Pure Aluminum
In the 1XXX group for minimum aluminum purities of 99.00 percent and greater, the last two of the four digits in the designation indicate the minimum aluminum percentage. These digits are the same as the last two digits to the right of the decimal point in the minimum aluminum percentage when it is expressed to the nearest 0.01 percent. The second digit in the designation indicates modifications in impurity limits. If the second digit is zero, it indicates unalloyed aluminum having natural impurity limits; integers 1 through 9, which are assigned consecutively as needed, indicate special control of the of more individual impurities or alloying elements.

Aluminum Alloys
In the 2XXX through 8XXX alloy groups the last two of the four digits in the designation have no special significance but serve only to identify the different aluminum alloys in group. The second digit in the alloy designation indicates alloy modifications. If the second digit is zero, it indicates the original alloy; integers 1 through 9, which are assigned consecutively, indicate alloy modifications.




Temper Designation System
The temper designation system is used for all forms of wrought and cast aluminum and aluminum alloys except ingot. It is based on the sequence of basic treatments used to produce various tempers. The temper designation follows the alloy designation with the two separated by a hyphen. Basic designations consist of a letter while subdivisions of those basic tempers, where required, are indicated by one or more digits following those letters. The system is designed to set down specific sequences of fabrication processes, but only those operations that are recognized as significantly influencing the characteristics of the product involved. Should some other variation of the same sequence of basic operations be applied to the same alloy, resulting in different characteristics, the additional digits will be added to the numerical designation.
Basic Temper Designations
F as fabricated. Denotes metal that has been fabricated to ordered dimensions without any attempt on the part of the producer to control the results of either strain-hardening operations or thermal treatments. There are no mechanical property limits, and the strength levels may vary form lot to lot and from shipment to shipment.
O annealed. Applies to wrought products that have undergone a thermal treatment to reduce their mechanical property levels to their minimums. Often described as "dead soft" metal.
W solution heat-treated. An unstable temper applying to certain of the (7XXX) heat-treatable alloys that, after heat treatment, spontaneously age harden at room temperature. Only when the period of natural aging is indicated (W 1hr. for example) is this a specific and complete designation.
H strain-hardened. Applies to those wrought products which have had an increase in strength by reduction through strain-hardening or cold working operations. The "H" is always followed by two or more digits.
T thermally treated to produce tempers other than F, O or H. Applies to those products which have had an increase in strength due to thermal treatments, with or without supplementary strain-hardening operations. The "T" is always followed by one or more digits.



Subdivisions of "T" Temper-
Heat-Treatable Alloys
T1 cooled from an elevated temperature shaping process and naturally aged to a substantially stable condition. Usually associated with extruded products and limited to the 6XXX series alloys.
T2 cooled from an elevated temperature shaping process, cold worked, and naturally aged to a substantially stable condition. Usually associated with cast products.
T3 solution heat-treated, cold worked, and naturally aged to a substantially stable condition. (T4+cold work)
T4 solution heat-treated, and naturally aged to a substantially stable condition.
T5 cooled from an elevated temperature shaping process and artificially aged. Usually associated with extruded products in the 6XXX series alloys. (T1+artificial age)
T6 solution heat-treated, and artificially aged. (T4+artificial age)
T7 solution heat-treated, and overaged/stabilized. Applies to alloy products which are thermally overaged after solution heat-treatment to carry them beyond the point of maximum strength to provide control of some special characteristic.
T8 solution heat-treated, cold worked, and artificially aged. (T3+artificial age)
T9 solution heat-treated, artificially aged and cold worked. (T6+artificial age)
T10 cooled from an elevated temperature shaping process, cold worked, and artificially aged. Usually associated with cast products.(T2+artificial age)

The following specific digits have been assigned for stress-relieved tempers of wrought products:
T_51 Applies to cold finished rod or bar when stress-relieved by stretching 1 to 3 % permanent set. Stretching is performed after solution heat treatment or after cooling from an elevated temperature shaping process. No straightening takes place after stretching.
T_510 Applies to extruded products and to drawn tube when stress-relieved by stretching 1 to 3 % permanent set. Stretching is performed after solution heat treatment or after cooling from an elevated temperature shaping process. No straightening takes place after stretching 1 to 3 % permanent set.
T_511 Applies to extruded products and to drawn tube when stress-relieved by stretching 1 to 3 % permanent set. Stretching is performed after solution heat treatment or after cooling from an elevated temperature shaping process. These products may receive minor straightening after stretching to comply with standard tolerances.

And much more at www.tennalum.com/AATT.htm

Selected response from:

Vidmantas Stilius
Local time: 09:50
Grading comment
Thanks for this detailed information. Much appreciated.
4 KudoZ points were awarded for this answer

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Summary of answers provided
nathermally treated
Vidmantas Stilius


  

Answers


2 hrs
thermally treated


Explanation:
Hope it helps:

KAISER ALUMINUM TECHNICAL REFERENCE LIBRARY No. 1012

Aluminum Alloys, Tempers and Terminology
Alloy Designation System
A system for designating wrought aluminum and wrought aluminum alloys was established by the Aluminum Association. Specific limits for chemical composition to which conformance is required are provided by applicable product standards.

Wrought Aluminum and Aluminum Alloy Designation System
A system of four-digit numerical designations is used to identify wrought aluminum and wrought aluminum alloys.

The first digit indicates the alloy group as follows:

Aluminum, 99.00% minimum and greater 1XXX

Aluminum alloys grouped by major alloying elements

Copper (Cu). 2XXX
Manganese (Mn) 3XXX
Silicon (Si) 4XXX
Magnesium (Mg) 5XXX
Magnesium and Silicon (Mg and Si) 6XXX
Zinc (Zn) 7XXX
Other elements 8XXX
Unused series 9XXX
Pure Aluminum
In the 1XXX group for minimum aluminum purities of 99.00 percent and greater, the last two of the four digits in the designation indicate the minimum aluminum percentage. These digits are the same as the last two digits to the right of the decimal point in the minimum aluminum percentage when it is expressed to the nearest 0.01 percent. The second digit in the designation indicates modifications in impurity limits. If the second digit is zero, it indicates unalloyed aluminum having natural impurity limits; integers 1 through 9, which are assigned consecutively as needed, indicate special control of the of more individual impurities or alloying elements.

Aluminum Alloys
In the 2XXX through 8XXX alloy groups the last two of the four digits in the designation have no special significance but serve only to identify the different aluminum alloys in group. The second digit in the alloy designation indicates alloy modifications. If the second digit is zero, it indicates the original alloy; integers 1 through 9, which are assigned consecutively, indicate alloy modifications.




Temper Designation System
The temper designation system is used for all forms of wrought and cast aluminum and aluminum alloys except ingot. It is based on the sequence of basic treatments used to produce various tempers. The temper designation follows the alloy designation with the two separated by a hyphen. Basic designations consist of a letter while subdivisions of those basic tempers, where required, are indicated by one or more digits following those letters. The system is designed to set down specific sequences of fabrication processes, but only those operations that are recognized as significantly influencing the characteristics of the product involved. Should some other variation of the same sequence of basic operations be applied to the same alloy, resulting in different characteristics, the additional digits will be added to the numerical designation.
Basic Temper Designations
F as fabricated. Denotes metal that has been fabricated to ordered dimensions without any attempt on the part of the producer to control the results of either strain-hardening operations or thermal treatments. There are no mechanical property limits, and the strength levels may vary form lot to lot and from shipment to shipment.
O annealed. Applies to wrought products that have undergone a thermal treatment to reduce their mechanical property levels to their minimums. Often described as "dead soft" metal.
W solution heat-treated. An unstable temper applying to certain of the (7XXX) heat-treatable alloys that, after heat treatment, spontaneously age harden at room temperature. Only when the period of natural aging is indicated (W 1hr. for example) is this a specific and complete designation.
H strain-hardened. Applies to those wrought products which have had an increase in strength by reduction through strain-hardening or cold working operations. The "H" is always followed by two or more digits.
T thermally treated to produce tempers other than F, O or H. Applies to those products which have had an increase in strength due to thermal treatments, with or without supplementary strain-hardening operations. The "T" is always followed by one or more digits.



Subdivisions of "T" Temper-
Heat-Treatable Alloys
T1 cooled from an elevated temperature shaping process and naturally aged to a substantially stable condition. Usually associated with extruded products and limited to the 6XXX series alloys.
T2 cooled from an elevated temperature shaping process, cold worked, and naturally aged to a substantially stable condition. Usually associated with cast products.
T3 solution heat-treated, cold worked, and naturally aged to a substantially stable condition. (T4+cold work)
T4 solution heat-treated, and naturally aged to a substantially stable condition.
T5 cooled from an elevated temperature shaping process and artificially aged. Usually associated with extruded products in the 6XXX series alloys. (T1+artificial age)
T6 solution heat-treated, and artificially aged. (T4+artificial age)
T7 solution heat-treated, and overaged/stabilized. Applies to alloy products which are thermally overaged after solution heat-treatment to carry them beyond the point of maximum strength to provide control of some special characteristic.
T8 solution heat-treated, cold worked, and artificially aged. (T3+artificial age)
T9 solution heat-treated, artificially aged and cold worked. (T6+artificial age)
T10 cooled from an elevated temperature shaping process, cold worked, and artificially aged. Usually associated with cast products.(T2+artificial age)

The following specific digits have been assigned for stress-relieved tempers of wrought products:
T_51 Applies to cold finished rod or bar when stress-relieved by stretching 1 to 3 % permanent set. Stretching is performed after solution heat treatment or after cooling from an elevated temperature shaping process. No straightening takes place after stretching.
T_510 Applies to extruded products and to drawn tube when stress-relieved by stretching 1 to 3 % permanent set. Stretching is performed after solution heat treatment or after cooling from an elevated temperature shaping process. No straightening takes place after stretching 1 to 3 % permanent set.
T_511 Applies to extruded products and to drawn tube when stress-relieved by stretching 1 to 3 % permanent set. Stretching is performed after solution heat treatment or after cooling from an elevated temperature shaping process. These products may receive minor straightening after stretching to comply with standard tolerances.

And much more at www.tennalum.com/AATT.htm




    as above
Vidmantas Stilius
Local time: 09:50
Native speaker of: Native in LithuanianLithuanian
PRO pts in pair: 56
Grading comment
Thanks for this detailed information. Much appreciated.

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