H14 – Strain hardened (cold worked) without thermal treatment and 1/2 hard.
H22 – Strain hardened and partially annealed, 1/4 hard.
H32 – Strain hardened and stabilized by low temperature heating, 1/4 hard.
H34 – Strain hardened and stabilized by low temperature heating, 1/2 hard.
H111 – Applies to products that are strain-hardened less than the amount required for a controlled H11 temper.
H112 – Applies to products which acquire some temper from shaping processes not having special control over the amount of strain-hardening or thermal treatment, but for which there are mechanical property limits
H116 – Applies to products manufactured from alloys in the 5xxx series, for which the magnesium content is 3% nominal or more. Products are normally strain hardened at the last operation to specified stable tensile property limits and meet specified levels of corrosion-resistance in accelerated type corrosion tests. They are suitable for continuous service at temperatures no greater than 150°F (66°C). Corrosion tests include inter-granular and exfoliation.
“O” Temper (Annealed Temper)
Annealing is a process of heating metal past a critical temperature whereby the material is relieved of the internal stresses from production or fabrication. It is the lowest temper available (the most easily bent)
T6 – Solution heat-treated and artificially aged. A stable temper.
T52 – Stress-relieved by compressing. Applies to products that are stress-relieved by compressing after solution heat-treatment, to produce a permanent set of 1 to 5 percent.
T651 – Solution heat-treated, stress-relieved by stretching and artificially aged. Equivalent to T6 and applies to plate and rolled bar except 2219
T6511 – Solution heat-treated, stress-relieved by stretching and artificially aged with minor straightening. Equivalent to T6 and applies to extruded rod, bar and shapes except 2024.
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Tempers
Aluminum Temper Definition
“H” temper-non-heat-treatable alloys / strain-hardened
H14 – Strain hardened (cold worked) without thermal treatment and 1/2 hard.
H22 – Strain hardened and partially annealed, 1/4 hard.
H32 – Strain hardened and stabilized by low temperature heating, 1/4 hard.
H34 – Strain hardened and stabilized by low temperature heating, 1/2 hard.
H111 – Applies to products that are strain-hardened less than the amount required for a controlled H11 temper.
H112 – Applies to products which acquire some temper from shaping processes not having special control over the amount of strain-hardening or thermal treatment, but for which there are mechanical property limits
H116 – Applies to products manufactured from alloys in the 5xxx series, for which the magnesium content is 3% nominal or more. Products are normally strain hardened at the last operation to specified stable tensile property limits and meet specified levels of corrosion-resistance in accelerated type corrosion tests. They are suitable for continuous service at temperatures no greater than 150°F (66°C). Corrosion tests include inter-granular and exfoliation.
“O” Temper (Annealed Temper)
Annealing is a process of heating metal past a critical temperature whereby the material is relieved of the internal stresses from production or fabrication. It is the lowest temper available (the most easily bent)
“T” temper-heat-treatable-alloys/thermally treated
T6 – Solution heat-treated and artificially aged. A stable temper.
T52 – Stress-relieved by compressing. Applies to products that are stress-relieved by compressing after solution heat-treatment, to produce a permanent set of 1 to 5 percent.
T651 – Solution heat-treated, stress-relieved by stretching and artificially aged. Equivalent to T6 and applies to plate and rolled bar except 2219
T6511 – Solution heat-treated, stress-relieved by stretching and artificially aged with minor straightening. Equivalent to T6 and applies to extruded rod, bar and shapes except 2024.
Get your specialty metals now
We’re here to help you find metals quickly at a competitive price, or give you the best value for your surplus metals. Reach out to us today to experience our world-class customer service for yourself.