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Standard: BS6323-7 Seamless and welded steel tubes for automobile mechanical and general engineering purposes
Part 7: Specific requirements for submerged arc welded steel tubes
강철 등급 및 화학 성분:
응용 분야: 자동차 산업/기계 사용/기계 및 일반 엔지니어링 목적
Size range: O.D.: 508-2020mm W.T.:6.3-50mm L:max12000mm
Chemical Compositions and Mechanical properties | ||||||||
지정 |
화학성분(레이들분석) |
기계적 성질 |
||||||
C |
Si |
Mn |
P |
S |
Re |
Rm |
A |
|
최대 |
최대 |
최대 |
최대 |
최대 |
분. |
분. |
분. |
|
|
% |
% |
% |
% |
% |
N / mm2 |
N / mm2 |
% |
SAW의 4 |
0.25 |
0.35 |
1.20 |
0.050 |
0.050 |
235 |
410 |
22 |
SAW 5a |
0.23 |
0.50 |
1.50 |
0.050 |
0.050 |
340 |
490 |
20 |
NOTE Welding of tubes of these grades does not require special techniques but care should be taken and welding should be carried out in accordance with the guidance given in the appropriate British Standard for welding,e.g. BS 5135.aGrain refining elements may be added to this grade at the option of the manufacturer. |
Dimensions of submerged arc welded steel tubes |
||||||
외경 |
두께 |
|||||
최소 두께 |
Thicknesses in common usage |
최대 두께 |
||||
mm |
mm |
mm |
mm |
mm |
mm |
mm |
508 |
6.3 |
8.0 |
10 |
12.5 |
|
20 |
559 |
6.3 |
8.0 |
10 |
12.5 |
|
20 |
610 |
6.3 |
8.0 |
10 |
12.5 |
16 |
32 |
660 |
6.3 |
8.0 |
10 |
12.5 |
16 |
32 |
711 |
7.1 |
8.0 |
10 |
12.5 |
16 |
32 |
762 |
7.1 |
10 |
12.5 |
16 |
|
32 |
813 |
7.1 |
10 |
12.5 |
16 |
20 |
32 |
864 |
7.1 |
10 |
12.5 |
16 |
20 |
32 |
914 |
8.0 |
10 |
12.5 |
16 |
20 |
45 |
1016 |
8.0 |
12.5 |
16 |
20 |
25 |
50 |
1220 |
10 |
12.5 |
16 |
20 |
25 |
50 |
1420 |
12.5 |
12.5 |
16 |
20 |
25 |
50 |
1620 |
12.5 |
16 |
20 |
25 |
|
50 |
1820 |
12.5 |
16 |
20 |
25 |
|
50 |
2020 |
12.5 |
16 |
20 |
25 |
|
50 |
NOTE Other outside diameters and thicknesses are available by agreement between purchaser and manufacturer.For sectional properties including mass per unit length,see appendix B of BS 6323-1:1982 |
Note: Special steel grade is also available, according to customer request.
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