Ordinary cold rolled brass strips
|
Standart documents:
GOST 2208-2007 - foil, ribbons, sheets and plates brass.
DSTU GOST 2208:2008 - foil, ribbons, sheets and plates brass.
BS EN 1652:1998 - Copper and copper alloys. Plate, sheet, strip, tape drives, and general purpose.
Alloy
L63, L68, L90, LS59-1 with the chemical composition according to GOST 15 527 - 2004 (DSTU GOST 15527:2005)
CuZn10, CuZn30, CuZn33, CuZn37, CuZn36 with the chemical composition according to 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.
|
Name
|
Alloy |
Thickness, mm |
Width, mm |
|
Strips |
Ë63, Ë90,
|
0,07-0,35 |
10-300 |
|
0,35-2,0 |
20-600 | ||
|
ËÑ59-1 |
0,4-2,0 |
20-600 | |
|
Ë68
|
0,1-0,35 |
10-300 | |
|
0,35-2,0 |
20-600 | ||
|
Strips |
Ë63, Ë68, Ë90, ËÑ59-1,
|
0,4-6,0 |
50-500 |
The length of strip according to GOST 2208-2007 (DSTU GOST 2208:2008) is shown in the table below:
|
Name
|
Thickness, mm |
Length |
|
|
0,07-0,10 |
not less than 30 m |
|
0,10-0,50 |
not less than 30 m | |
|
0,50-1,00 |
not less than 20 m | |
|
1,00-2,00 |
not less than 10 m | |
|
Strips |
0,4-6,0 |
îò 500 ìì äî 2000 ìì |
2. Strips made the following states GOST 2208-2007 (DSTU GOST 2208:2008):
|
Name
|
Alloy |
Thickness, mm |
State |
|
Strips |
Ë63 |
0,07-1,0 |
solid, extra,
|
|
0,14-2,0 |
soft, semisolid, solid extra solid | ||
|
Ë68 |
0,1-1,0 |
Solid, extra solid | |
|
0,14-2,0 |
soft, semisolid, solid, extra solid | ||
|
Ë90 |
0,07-0,12 |
solid | |
|
0,14-2,0 |
A soft, semisolid, solid | ||
|
ËÑ59-1 |
0,4-2,0 |
Soft, solid | |
|
Strips |
Ë63 |
0,4-1,0 |
Solid, extra solid, spring-solid |
|
0,4-2,0 |
A soft, semisolid, solid, extra solid | ||
|
0,4-6,0 |
A soft, semisolid, solid | ||
|
Ë68 |
0,4-2,0 |
A soft, semisolid, solid, extra solid | |
|
0,4-6,0 |
A soft, semisolid, solid | ||
|
Ë90 |
0,4-6,0 |
A soft, semisolid, solid | |
|
ËÑ59-1 |
0,5-6,0 |
Soft, solid |
Deviation for thickness, width and length according to GOST 2208-2007 (DSTU GOST 2208:2008), BS EN 1652:1998.
3. The mechanical properties of strips, depending on condition and grade of the alloy:
|
Normative document |
Alloy |
State
|
Ultimate strength, MPa |
Elongation δ,%,
|
|
1 |
2 |
3 |
4 |
5 |
|
GOST 2208-2007 (DSTU Standard 2208:2008) |
Ë90 |
soft |
230-340 |
36 |
|
semisolid |
290-390 |
10 | ||
|
solid |
at least 350 |
3 | ||
|
Ë68 |
soft |
280-370 |
42 | |
|
semisolid |
340-470 |
20 | ||
|
solid |
430-540 |
10 | ||
|
extra solid |
at least 520 |
- | ||
|
Ë63 |
soft |
290-400 |
38 | |
|
semisolid |
340-470 |
20 | ||
|
solid |
410-570 |
8 | ||
|
extra solid |
510-640 |
4 | ||
|
spring-solid |
at least 610 |
- |
|
1 |
2 |
3 |
4 |
5 | |
|
ËÑ59-1 |
soft |
340 - 470 |
25 | ||
|
solid |
460 - 610 |
5 | |||
|
Normative document |
Alloy |
State |
Ultimate strength,
|
Elongation δ,%,
| |
|
for thickness up to and including 2.5 mm |
thickness of more than 2.5 mm | ||||
|
BS EN 1652:1998 |
CuZn10 |
R240 |
240 - 290 |
36 |
45 |
|
R280 |
280 - 360 |
13 |
20 | ||
|
R350 |
At least 350 |
4 |
8 | ||
|
ÑuZn30 |
R270 |
270 - 350 |
40 |
50 | |
|
R350 |
350 - 430 |
21 |
33 | ||
|
R410 |
410 - 490 |
9 |
15 | ||
|
R480 |
At least 480 |
- |
- | ||
|
ÑuZn33 |
R280 |
280 - 380 |
40 |
50 | |
|
R350 |
350 - 430 |
23 |
31 | ||
|
R420 |
420 - 500 |
6 |
13 | ||
|
ÑuZn36 ÑuZn37 |
R300 |
300 - 370 |
38 |
48 | |
|
R350 |
350 - 440 |
19 |
28 | ||
|
R410 |
410 - 490 |
8 |
12 | ||
|
R480 |
480 - 560 |
3 |
- | ||
|
R550 |
At least 550 |
- |
- | ||
Camber strips shall not exceed:
- Strips width up to 100 mm inclusive - 4 mm to 1 m length
- Strips width over 100 mm - 3 mm to 1 m length
Camber strips) 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.
Internal coil diameter - 100 mm, 250 mm, 300 mm, 400 mm and 500 mm (depending on thickness and width of the strip, negotiate with the customer when ordering).
The maximum weight a roll with a width of 600 mm to 1100 kg.
Surface quality:
The surface of the tape must be clean. On the surface, allowed discoloration, local darkening traces of technological lubricants, as well as local defects, not putting out tapes for control over clean-up tolerances in thickness.
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