Seamless Precision Steel Tubes
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- The name :
BS6323-5 Electric Resistance Welded Steel Tubes
- 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
Auto Parts Steel Tubes, Mechanical Steel Tubes - Model : BS6323-5
Previous : BS6323-4 Cold Finished Seamless Steel Tubes
Next : BS6323-6 Cold Finished Electric Resistance Welded Steel Tubes
Instruction
Standard: BS6323-5 Seamless and Welded steel tubes for Automobile,Mechanical and General Engineering Purposes
Part 5: Specific requirements for electric resistance welded (including induction) steel tubes
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 and Chemical Compositions:
|
Desig |
Chemical Compositions( ladle analysis) |
Mechanical properties |
|||||||||||||
|
C |
Si |
Mn |
P |
S |
KM (as welded) |
GMK and GZF (annealed |
NKM and NZF （normalzied) |
||||||||
|
max. |
max. |
max. |
max. |
max. |
Re |
Rm |
A |
A |
Re |
Rm |
A |
Re |
Rm |
A |
|
|
|
|
|
|
|
D/a≤ |
D/a> |
|||||||||
|
% |
% |
% |
% |
% |
N/m |
N/m |
% |
% |
N/m |
N/m |
% |
N/m |
N/m |
% |
|
|
ERW 1 |
0.13 |
__ |
0.60 |
0.050 |
0.050 |
200 |
300 |
10 |
20 |
150 |
270 |
27 |
155 |
280 |
25 |
|
ERW 2 |
0.16 |
__ |
0.70 |
0.050 |
0.050 |
250 |
340 |
8 |
15 |
195 |
300 |
27 |
195 |
320 |
25 |
|
ERW 3 |
0.20 |
0.35 |
0.90 |
0.050 |
0.050 |
300 |
400 |
7 |
12 |
215 |
340 |
26 |
215 |
360 |
24 |
|
ERW 4 |
0.25 |
0.35 |
1.20 |
0.050 |
0.050 |
350 |
450 |
6 |
10 |
235 |
400 |
24 |
235 |
410 |
22 |
|
ERW 5 |
0.23 |
0.50 |
1.50 |
0.050 |
0.050 |
420 |
420 |
6 |
8 |
340 |
__ |
__ |
340 |
490 |
20 |
|
Diameter |
Tolerance |
|||
|
1 |
2 |
3 |
||
|
over |
Up to and including |
KM condition D/a |
GKM, GZF,NKM, NZF condition 20<D/a≤40 |
|
|
mm |
mm |
mm |
mm |
mm |
|
|
20 |
±0.12 |
±0.18 |
±0.24 |
|
20 |
30 |
±0.15 |
±0.22 |
±0.30 |
|
30 |
50 |
±0.20 |
±0.30 |
±0.40 |
|
50 |
70 |
±0.25 |
±0.37 |
±0.50 |
|
70 |
90 |
±0.30 |
±0.45 |
±0.60 |
|
90 |
110 |
±0.35 |
±0.52 |
±0.70 |
|
110 |
130 |
±0.45 |
±0.68 |
±0.90 |
|
130 |
150 |
±0.55 |
±0.82 |
±1.10 |
|
150 |
170 |
±0.65 |
±0.97 |
±1.30 |
|
170 |
|
±0.75% of outside |
±1% of outside diameter |
±1.5% of outside diameter |
Note: Special steel grade is also available, according to customer request.
- CONTACT US
- Mobile: 0086-(0)137 3616 4628
- Tel : 0086-574-88255925
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- Email : sales@steel-tubes.com
