Seamless Precision Steel Tubes
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- The name :
BS6323-3 Hot Hinished Seamless Steel Pipes
- Product Description
- Applications: for Auto industry / for Machinery use/Mechanical and General Engineering purposes
Size range: O.D.:6-350mm W.T.:1-30mm L:max12000mm
Steel Grade: HFS3, HFS4, HFS5, HFS8 - Model : BS6323-3
-
Instruction
Standard: BS6323-3 Seamless and Welded steel tubes for automobile, mechanical and general engineering purposes
Part 3: Specific requirements for hot finished seamless steel tubes
Applications: for Auto industry / for machinery use/mechanical and general engineering purposes
Size range: O.D.:6-280mm W.T.:1-30mm L:max12000mm
|
Design |
Chemical Compositions( ladle analysis) |
Mechanical properties |
||||||
| C |
Si |
Mn |
P |
S |
Re |
Rm |
A |
|
|
max. |
max. |
max. |
||||||
|
|
% |
% |
% |
% |
% |
N/mm2 |
N/mm2 |
% |
|
HFS 3 |
0.20max. |
0.35 |
0.90max. |
0.050 |
0.050 |
215 |
360 |
24 |
|
HFS 4 |
0.25max. |
0.35 |
1.20max. |
0.050 |
0.050 |
235 |
410 |
22 |
|
HFS5ab |
0.23max. |
0.50 |
1.50max. |
0.050 |
0.050 |
340 |
490 |
20 |
|
HFS 8 |
0.40 to 0.55 |
0.35 |
0.50 to0.90 |
0.050 |
0.050 |
340 |
540 |
18 |
"NOTE:Except for grade 8,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 Standards for welding,e.g. BS 5135.
Welding of grade 8 may require special techniques aGrain refining elements may be added to this grade at the option of the manufacturer.
For thicknesses in excess of 30 mm it is permissible for the minimum yield strength to be reduce by 5 N/mm2"
|
Outside diameter |
Thicknesses |
|||||||
|
Minimum thickness |
Thicknesses in common usage |
maximum thickness |
||||||
|
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
|
33.7 |
3.2 |
3.2 |
4.0 |
5.0 |
|
|
|
6.3 |
|
38.0 |
3.2 |
3.2 |
4.0 |
5.0 |
5.6 |
|
|
6.3 |
|
42.4 |
3.2 |
3.2 |
4.0 |
5.6 |
|
|
|
7.1 |
|
48.3 |
3.2 |
3.2 |
4.0 |
5.0 |
5.6 |
|
|
7.1 |
|
60.3 |
3.2 |
4.5 |
5.0 |
5.6 |
6.3 |
|
|
11 |
|
76.1 |
3.2 |
4.5 |
5.6 |
6.3 |
|
|
|
12.5 |
|
88.9 |
4.0 |
4.5 |
5.0 |
5.6 |
6.3 |
|
|
16 |
|
101.6 |
4.5 |
5.0 |
5.6 |
6.3 |
|
|
|
16 |
|
114.3 |
4.5 |
5.0 |
5.6 |
6.3 |
8.0 |
|
|
28 |
|
127.0 |
4.5 |
5.0 |
5.6 |
6.3 |
8.0 |
|
|
28 |
|
139.7 |
4.5 |
5.0 |
5.6 |
6.3 |
8.0 |
10.0 |
|
32 |
|
168.3 |
5.0 |
5.0 |
5.6 |
6.3 |
7.1 |
8.0 |
10.0 |
40 |
|
193.7 |
5.0 |
5.6 |
6.3 |
8.0 |
10.0 |
12.5 |
|
45 |
|
219.1 |
5.0 |
5.6 |
6.3 |
8.0 |
10.0 |
12.5 |
|
55 |
|
244.5 |
6.3 |
6.3 |
7.1 |
8.0 |
10.0 |
12.5 |
|
60 |
|
273 |
6.3 |
6.3 |
7.1 |
8.0 |
10.0 |
12.5 |
|
70 |
|
323.9 |
6.3 |
6.3 |
7.1 |
8.0 |
10.0 |
12.5 |
|
80 |
|
355.6 |
8.0 |
8.0 |
10.0 |
12.5 |
|
|
|
90 |
|
406.4 |
8.0 |
10.0 |
12.5 |
|
|
|
|
100 |
|
457 |
9.5 |
10.0 |
12.5 |
|
|
|
|
100 |
NOTE Outside diameters and thicknesses other than those listed 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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