Aluminum, guide, designations of the strain-hardening :: INVESTA, Aluminium, Stal Nierdzewna, Stal Kwasoodporna, Cięcie Laserem, Gięcie

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STOCK PROGRAMME sheets and strips tread plates decorative sheets anodized and anodizine quality aluminium plates cutting service TECHNICAL INFORMATION cold rolled sheets and strips thickness tolerance cold rolled sheets and plates width tolerance cold rolled strips width tolerance cold rolled sheets and plates lenght tolerance hot rolled sheets thickness tolerance hot rolled sheets width and lenght tolerance

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STOCK PROGRAMME equal angles unequal angles U-profiles T-profiles Z-profiles

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guide

TECHNICAL INFORMATION alloy table aluminium tempers mechanical properties of sheets and plates mechanical properties of drawn products mechanical properties of extruded products standard chart

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STOCK PROGRAMME cold rolled sheets hot rolled sheets service TECHNICAL INFORMATION surface cold rolled sheets thickness tolerance cold rolled sheets width tolerance hot rolled sheets thickness tolerance hot rolled sheets width tolerance

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PROPERTIES AND APPLICATIONS grades chart chemical resistance influence of alloys on steel properties temperature resistance characteristics and proposed applications MACHINING welding methods grinding and mirror polishing pickling and passivating cleaning and maintenance steel plastic workability standard chart

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aluminium tempers

guide

temper symbol

temper defined

notes on the temper and additions to the numerical designation

current-ly valid

as in the previous standard

pg, pz, pw, pp, pc, pt, ps, pm, pk, pe, pi

as fabricated (raw) – applies to products shaped with no special control of the thermal conditions or strain hardening

No mechanical property limits are defined in this case

annealed – applies to products which gain specific properties in the thermal treatment process

Annealed until the minimum strength is obtained

thermally treated over the time and at the temperature recommended for products impregnated and slowly cooled to the room temperature

Used for products not worked mechanically prior to impregnation, the mechanical properties are not specified

heat-treated and worked to increase ductility.

Used for products plastic-formed prior to impregnation

homogenised

Used for rolled aluminum and bands cast continuously and subject to annealing at high temperatures to reduce segregation

H11

subject to some strain-hardening

The work-hardened temper is used for products subject to cold plastic reforming following annealing, hot-working, or cold-working, and after partial annealing or stabilisation. The mechanical property level is identified.

The digits following letter H denote::

the first one – type of thermal treatment
the second – the degree of strain-hardening identified as the minimum R_m value

Rm min. in the annealed temper [Mpa]	Rm increase up to temper Hx8 [Mpa
up to 40	55
45 ÷ 60	65
65 ÷ 80	75
85 ÷ 100	85
105 ÷ 120	90
125 ÷ 160	95
165 ÷ 200	100
205 ÷ 240	105
245 ÷ 280	110
285 ÷ 320	115
325 and above	120

the third digit indicates a variation of the double-digit temper or other significant characteristic features or special processes. The details are laid down in the standard.

H12

work-hardened only

1/4

hard

H14

1/2

H16

3/4

H18

4/4

H19

extra hard

H22

z 2 r

strain-hardened and partially annealed

1/4

hard

H24

z 4 r

1/2

H26

3/4

H28

4/4

H32

z 2 s

strain-hardened and stabilised

1/4

hard

H34

z 4 s

1/2

H36

3/4

H38

z 6 s

4/4

H42

strain-hardened and painted or varnished

1/4

hard

H44

1/2

H46

3/4

H38

4/4

Impregnated (unstable)

The designation is used for alloys which, upon impregnation, age spontaneously at room temperature; the ageing period is indicated (e.g. W 1/2 h)

W5x

impregnated (unstable) and stress free

In the designation of this temper the second digit (x) indicates the stress relieving method, the degree of the plastic strain for products of the type.

The details are laid down in the standards.

thermally treated to obtain stable tempers other than F, O, or H

cooled from the elevated temperature of the shaping process and naturally aged until a stable condition is reached

The designation is used for products that have been thermally treated (and optionally strain-hardened) to obtain a stable temper.

The T1 and T9 designations can be extended to include one or more digits denoting the treatment variant, i.e. one or more of the following processes:

impregnation and/or precipitation,
cumulative cold strain upon impregnation,
stress relief.

related process
	material tested	overaging	cold strain hardening	preaging	special process
1	X	-	T31, T81	T51, T61	-
2	T42, T62	X	X	X	X
3	X	T73	T83	T63	-
4	X	T74	-	T64	-
5	X	-	-	T65	-
6	X	T76	T36, T86	X	T56, T66
7	X	-	T37, T87	X	-
8	X	-	-	X	-
9	X	T79	T39, T89	X	-

X cannot be used

- possible use in the future

The details in the standard

cooled from the elevated temperature of the shaping process, cold worked, and naturally aged to obtain a stable temper

impregnated, cold worked, and naturally aged to obtain a stable temper

impregnated and naturally aged to obtain a stable temper

cooled from the elevated temperature of the shaping process, then artificially aged

impregnated, then artificially aged

impregnated and overaged /stabilised

impregnated, cold worked, and artificially aged

impregnated, artificially aged, and cold worked

This catalogue has been produced to the best of our knowledge and experience, and is intended to assist you. Be sure we have taken all care to be certain that the information provided is technically correct. Nevertheless, it cannot be deemed the binding standard or substantiate guarantee or indemnity claims.

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