Cold rolled brass sheets

Cold rolled brass sheets


Standart documents:
GOST 2208-2007 - foil, ribbons, sheets and plates brass.
DSTU GOST 2208:2008
BS EN 1652:1998 - Copper and copper alloys. Plate, sheet, strip, tape drives, and general purpose.

Material:
63, 68, 90, 59-1 with the chemical composition according to GOST 15527-2004 (DSTU GOST 15527:2005)

CuZn10, CuZn30, CuZn33, CuZn36, CuZn37 with the chemical composition of BS EN 1652:1998


Usage: used in various industries


Requirements:

1. The geometric dimensions according to GOST 2208-2007 (DSTU GOST 2208:2008) and BS EN 1652:1998


Thickness: 0.4 mm to 12.0 mm


Width: 600 mm


Length: 500 mm to 2000 mm


Dimension for thickness, width and length according to GOST 2208-2007 (DSTU GOST 2208:2008), BS EN 1652:1998.


2. Sheets made the following GOST 2208-2007 (DSTU GOST 2208:2008):

Alloy

Thickness, mm

State

63

0,4-1,0

solid, extra solid, solid, spring

0,4-2,0

soft, semisolid, solid, extra solid

0,4 – 12,0

soft, semisolid, solid

68

0,4- 2,0

soft, semisolid, solid, extra solid

0,4-12,0

soft, semisolid, solid

90

0,4-12,0

soft, semisolid, solid

59-1

0,5 - 6,0

soft, solid

3. Mechanical properties of strips depending on the state and the alloy:


3.1. For sheets GOST 2208-2007 (DSTU Standard 2208:2008)

Alloy

State

Ultimate strength,
MPa

Relative
Elongation δ,%,
at least

90

soft

230-340

36

semosolid

290-390

10

solid

at least 350

3

68

soft

280-370

42

semosolid

340-470

20

solid

430-540

10

extrasolid

at least520

63

soft

290-400

38

semosolid

340-470

20

solid

410-570

8

extrasolid

510-640

4

spring solid

at least610

59-1

soft

340 - 470

25

solid

460 - 610

5

3.2. For sheets of BS EN 1652:1998

Alloy

State

Ultimate strength,
MPa

Elongation δ,%,
at least

For thicknesses up to and including 2.5 mm

For thickness over 2.5 mm

CuZn10

R240

240 - 290

36

45

R280

280 - 360

13

20

R350

at least 350

4

8

uZn30

R270

270 - 350

40

50

R350

350 - 430

21

33

R410

410 - 490

9

15

R480

at least480

uZn33

R280

280 - 380

40

50

R350

350 - 430

23

31

R420

420 - 500

420

500

uZn36

uZn37

R300

300 - 370

38

48

R350

350 - 440

19

28

R410

410 - 490

8

12

R480

480 - 560

3

R550

at least550

Camber sheets up to 4.0 mm should not exceed 5 mm to 1 m in length, thickness exceeding 4,0 mm - 8 mm to 1 m in length.


The deflection of cold-rolled sheets semisolid, solid, extra solid and solid-state spring should not exceed 1 mm per 100 mm width and 20 mm for 1 m length of the sheet. The deflection of the sheets of soft state is not regulated.




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