Category

China

USA

U.K.

Japan

France

Germany

former soviet union

GB

ASTM

BS

JIS

NF

DIN

ГОСТ

Industrial pure aluminum

1A99

1199

A199.99R

A99

1A97

A199.98R

A97

1A95

A95

1A80

1080(1A)

1080

1080A

A199.90

A8

1A50

1050

1050(1B)

1050

1050A

A199.50

A5

Rustproof aluminum

5A02

5052

NS4

5052

5052

A1Mg2.5

Amg

5A03

NS5

AMg3

5A05

5056

NB6

5056

A1Mg5

AH5V

5A30

5456

NG61

5556

5957

Duralumin

2A01

2036

2117

2117

AlCu2.5Mg0.5

D18

2A11

HF15

2017

2017S

AlCuMg1

D1

2A12

2124

2024

2024

AlCuMg2

D16AVTV

2B16

2319

Forged aluminum

2A80

2N01

AK4

2A90

2218

2018

AK2

2A14

2014

2014

2014

AlCuSiMn

AK8

Super duralumin

7A09

7175

7075

7075

AlZnMgCu1.5

V95P

Cast aluminum alloy

ZAlSi7Mn

356.2

LM25

AC4C

G-AlSi7Mg

ZAlSi12

413.2

LM6

AC3A

A-S12-Y4

G-Al12

AL2

ZAlSi5Cu1Mg

355.2

AL5

ZAlSi2Cu2Mg1

413.0

AC8A

G-Al12(Cu)

ZAlCu5Mn

AL19

ZAlCu5MnCdVA

201.0

ZAlMg10

520.2

LM10

AG11

G-AlMg10

AL8

ZAlMg5Si

G-AlMg5Si

AL13

CHINA CHINA

UNITED STATES THE UNITED STATES

L1-L6, L5-1

1070, 1060, 1050, 1030, 1100

LY11, LY12, LY1

2017, 2024, 2117

LD10, LD5

2014, 2214

LD7

2618

LD9, LD8

2018, 2218

LY16, LY17

2219, 2021

LF21

3003

LF2, LF3, LF4

5052, 5154, 5083

LF5, LF11, LF6, LF5-1

5456, 5056

LD2, LD2-1, LD2-2, LD30, LD31

6165, 6061, 6055, 6063

LC6, LC4, LC9

7001, 7178, 7075

LC5, LC10

7076, 7175, 7079

LD11

4032

Comparison table of new and old alloy grades in China
 (GB/T 3190-1996)

New brand

Old brand

New brand

Old brand

New brand

Old brand

1A99

Original LG5

2B12

Original LY9

3003

-

1A97

Original LG4

2A13

Original LY13

3103

-

1A95

-

2A14

Original LD10

3004

-

1A93

Original LG3

2A16

Original LY16

3005

-

1A90

Original LG2

2B16

Used Ly16-1

3105

-

1A85

Original LG1

2A17

Original LY17

4A01

Original LT1

1080

-

2A20

Used LY20

4A11

Original LD11

1080A

-

2A21

Used214

4A13

Original LT13

1070

-

2A25

Used 225

4A17

Original LT17

1070A

Generation L1

2A49

Used149

4004

-

1370

-

2A50

Original LD5

4032

-

1060

Generation L2

2B50

Original LD6

4043

-

1050

-

2A70

Original LD7

4043A

-

1050A

Generation L3

2B70

Used LD7-1

4047

-

1A50

Original LB2

2A80

Original LD8

4047A

-

1350

-

2A90

Original LD9

5A01

Used 2101, LF15

1145

-

2004

-

5A02

Original LF2

1035

Generation L4

2011

-

5A03

Original LF3

1A30

Original L4-1

2014

-

5A05

Original LF5

1100

Generation LF5-1

2014A

-

5B05

Original LF10

1200

Generation L5

2214

-

5A06

Original LF6

1235

-

2017

-

5B06

Original LF14

2A01

Original LY1

2017A

-

5A12

Original LF12

2A02

Original LY2

2117

-

5A13

Original LF13

2A04

Original LY4

2218

-

5A30

Used 2103, LF16

2A06

Original LY6

2618

-

5A33

Original LF33

2A10

Original LY10

2219

Used LY19, 147

5A41

Original LT41

2A11

Original LY11

2024

-

5A43

Original LF43

2B11

Original LY8

2124

-

5A66

Original LT66

2A12

Original LY12

3A21

Original LF21

5005

-

5019

-

6B02

Original LD2-1

7A09

Original LC9

5050

-

6A51

Used 651

7A10

Original LC10

5251

-

6101

-

7A15

Used LC15, 157

5052

-

6101A

-

7A19

Used 919, LC19

5154

-

6005

-

7A31

Used 183-1

5154A

-

6005A

-

7A33

Used LB733

5454

-

6351

-

7A52

Used LC52, 5210

5554

-

6060

-

7003

Original LC12

5754

-

6061

Original LD30

7005

-

5056

Original LF5-1

6063

Original LD31

7020

-

5356

-

6063A

-

7022

-

5456

-

6070

Original LD2-2

7050

-

5082

-

6181

-

7075

-

5182

-

6082

-

7475

-

5083

Original LF4

7A01

Original LB1

8A06

Original L6

5183

-

7A03

Original LC3

8011

Used LT98

5086

-

7A04

Original LC4

8090

-

6A02

Original LD2

7A05

Used 705

-

-

Note:
 (1) "Original" refers to the old brand that has the same chemical composition as the new brand and complies with the regulations of GB3190-82.
 (2) "Generation" refers to old brands whose chemical composition is similar to that of new brands and which comply with the provisions of GB3190-82.
 (3) "Formerly used" refers to brands that have been identified and have been used in industrial production, but are not included in GB3190-82.

ALLOY SYSTEM

Status TEMPER

L -- Aluminum

R -- hot processing state

LF -- rust-proof aluminum alloy (Ai - Mg, Ai - Mn)

M -- annealing state

LY -- hard aluminum alloy (Ai - Cu - Mg)

Y -- work hardening state

LC -- superhard aluminum alloy (Ai - Cu - Mg - Zn)

C -- Quenching state

LD -- Wrought Aluminum Alloy (Ai - Mg - Si & Cu - Mg - Si)

CZ -- Quenching, natural aging state

LT -- special aluminum alloy

CZY -- quenching, natural aging, cold working state

-

CS -- Quenching, artificial aging state

-

CSY -- quenching, artificial aging, cold working state

-

Y2 -- semi-hard state

-

RCS (T5)--air cooling, artificial aging state

(GB/T16475-1996) Basic status code, name, description and application

code name

name

Description and application

F

Free processing status

Applicable to products that have no special requirements for work hardening and heat treatment conditions during the molding process. The mechanical properties of the products in this state are not specified.

O

Annealing state

Suitable for processed products that have been fully annealed to obtain minimum strength

H

Work hardened state

Applicable to products whose strength is increased through work hardening. The product may or may not undergo additional heat treatment that reduces the strength after work hardening. The H code must be followed by two or three Arabic numerals.

W

Solution heat treatment state

An unstable state that is only applicable to alloys that have been naturally aged at room temperature after solid solution heat treatment. This state code only indicates that the product is in the natural aging stage.

T

Heat treatment status
 (different from F, O, H)

Applicable to products that have reached a stable state after heat treatment (or not) through work hardening. The T code must be followed by one or more Arabic numerals.

Comparison table of Chinese old and new original status codes (GB/T16475-1996)

old code name

New code name

old code name

New code name

M

O

CYS

TX51, TX52

R

H112 or F

CZY

T0

Y

HX8

CSY

T9

Y1

HX6

MCS

T62

Y2

HX4

MCZ

T42

Y4

HX2

CGS1

T73

T

HX9

CGS2

T76

CZ

T4

CGS3

T74

CS

T6

RCS

T5

 Note: The status of products originally delivered in R status and providing CZ and CS sample performance can correspond to the new code numbers T62 and T42 respectively.

HXY subdivision status code and work hardening degree

Subdivision status code

Degree of work hardening

HX1

The tensile strength limit is the intermediate value between O and HX2 states

HX2

The tensile strength limit is the intermediate value between O and HX4 states

HX3

The tensile strength limit is the intermediate value between HX2 and HX4 states

HX4

The tensile strength limit is the intermediate value between O and HX8 states

HX5

The tensile strength limit is the middle value between HX4 and HX6 conditions

HX6

The tensile strength limit is the middle value between HX4 and HX8 conditions

HX7

The tensile strength limit is the middle value between HX6 and HX8 conditions

HX8

hard state

HX9

In the ultra-hard state, the minimum tensile strength limit exceeds the HX8 state by at least 10 MPa.

Note: When the tensile strength limit value of HX1~HX9 state determined according to the above table does not end with 0 or 5, it should be rounded to the adjacent larger value ending with 0 or 5.

TX subdivision status code description and application

Status code

Description and application

T0

After solid solution heat treatment, natural aging and then cold working, it is suitable for products that have been cold worked to increase their strength.

T1

It is cooled by the high-temperature molding process and then naturally aged to a basically stable state. It is suitable for products that will no longer undergo cold processing after being cooled by the high-temperature molding process (straightening and leveling can be performed, but the mechanical performance limit will not be affected).

T2

It is cooled by the high-temperature molding process and naturally aged to a basically stable state after cold working. It is suitable for products that are cooled by the high-temperature molding process and then cold-worked or straightened to improve strength.

T3

Cold working is carried out after solid solution heat treatment, and then it is naturally aged to a basically stable state. It is suitable for cold working or straightening after solid solution heat treatment. Products that are leveled to increase strength

T4

Natural aging to a basically stable state after solution heat treatment is suitable for products that will no longer undergo cold processing after solution heat treatment (straightening and leveling can be performed, but the mechanical performance limit will not be affected)

T5

It is a state that is cooled by the high-temperature molding process and then artificially aged. It is suitable for products that are artificially aged after being cooled by the high-temperature molding process without cold processing (straightening and leveling can be performed, but the mechanical performance limit is not affected).

T6

The state of artificial aging after solution heat treatment is suitable for products that will no longer undergo cold processing after solution heat treatment (straightening and flattening can be performed, but the mechanical performance limit will not be affected)

T7

The state of over-aging after solution heat treatment is applicable to products whose strength has crossed the highest peak on the aging curve during artificial aging in order to obtain certain important properties after solution heat treatment.

T8

The state of cold working after solution heat treatment and then artificial aging
 is suitable for products that have been cold worked, or straightened or leveled to improve strength.

T9

Artificial aging after solution heat treatment and then cold working. It is suitable for products whose strength is improved by cold working.

T10

After being cooled by the high-temperature molding process, it is cold worked and then artificially aged. It is suitable for products that have been cold worked, or straightened or leveled to improve strength.

Note: Some 6XXX series alloys can achieve the same solution heat treatment effect whether they are solution heat treated in the furnace or quenched from the high-temperature forming process to retain soluble components in the solid solution. The T3, T4, T6, and T7, T8 and T9 states can adopt either of the above two heat treatment methods.

Description and application of TXX and TXXX subdivision status codes

Status code

Description and application

T42

It is suitable for products that have been naturally aged to a fully stable state after solid solution heat treatment in the O or F state. It is also suitable for products whose mechanical properties have reached the T42 state after the buyer heat-treats processed products in any state.

T62

It is suitable for products that have been artificially aged after solid solution heat treatment in the O or F state. It is also suitable for products whose mechanical properties have reached the T62 state after the buyer has heat treated the processed products in any state.

T73

It is suitable for products that have been aged after solid solution heat treatment to achieve the specified mechanical properties and stress corrosion resistance performance indicators.

T74

Same as T73 status definition. The tensile strength of this state is greater than the T73 state, but less than the T76 state

T76

Same as T73 status definition. The tensile strength of this state is higher than that of the T73 and T74 states respectively, and the stress corrosion cracking resistance is lower than that of the T73 and T74 states respectively, but its spalling corrosion resistance is still good.

T72

It is suitable for products that have undergone artificial aging treatment after solid solution heat treatment in the O or F state, and the mechanical properties and corrosion resistance have reached the T7X state.

T81

It is suitable for products that undergo solid solution heat treatment, undergo about 1% cold working deformation to increase strength, and then undergo artificial aging.

T87

It is suitable for products that undergo solid solution heat treatment, undergo about 1% cold working deformation to increase strength, and then undergo artificial aging.