Application£º Used in the general structure and the mechanism, including construction, machinery, transportation, aviation, petroleum mining and each kind of structural tubes.
Dmension Tolerances£º
|
Pipe types
|
Pipe size mm |
Tolerances ( Standard) |
|
Hot rolled |
OD
D |
<50 |
¡À0.50mm |
|
¡Ý50 |
¡À1% |
|
WT
s |
<4 |
¡À12.5%( ¡À0.40mm)min |
|
¡Ý4~20 |
+15%
-12.5% |
|
>20 |
¡À12.5% |
|
Cold drawn |
OD
D |
6~10 |
¡À0.20mm |
|
10~30 |
¡À0.40mm |
|
30~50 |
¡À0.45mm |
|
>50 |
¡À1% |
|
WT s
|
¡Ü1 |
¡À0.15mm |
|
>1~3 |
+15%
-10% |
|
>3 |
+12.5%
-10% |
Mechanical Properties£º
|
Item NO |
Grade |
Tensile Strength
¦Òb
Mpa |
Yield Strength¦Ò0.2, Mpa |
Elongation¦Ä5
% |
H(Flattening test dull
spacing)
mm |
|
WT |
|
¡Ü16mm |
>16~30mm |
>30mm |
|
MIN |
|
1 |
10 |
335 |
205 |
195 |
185 |
24 |
2/3D |
|
2 |
20 |
390 |
245 |
235 |
225 |
20 |
2/3D |
|
3 |
35 |
510 |
305 |
295 |
285 |
17 |
------- |
|
4 |
45 |
5590 |
335 |
325 |
315 |
14 |
-------- |
Chemical composition:
|
Standard |
Grade |
C |
Si |
Mn |
P¡Ü |
S¡Ü |
Cu¡Ü |
Ni¡Ü |
Cr¡Ü |
Mo¡Ü |
V¡Ü |
|
GB/T 8162 |
10 |
0.07-0.14 |
0.17-0.37 |
0.35-0.65 |
0.035 |
0.035 |
0.25 |
0.25 |
0.15 |
/ |
/ |
|
20 |
0.17-0.24 |
0.17-0.37 |
0.35-0.65 |
0.035 |
0.035 |
0.25 |
0.25 |
0.25 |
/ |
/ |
|
35 |
0.32-0.39 |
0.17-0.37 |
0.50-0.80 |
0.035 |
0.035 |
0.25 |
0.25 |
0.25 |
/ |
/ |
|
45 |
0.42-0.50 |
0.17-0.37 |
0.50-0.80 |
0.035 |
0.035 |
0.25 |
0.30 |
0.25 |
/ |
/ |
Note: Other Alloy tubes can also be provided by agreement
Products can be also supplied according to the standard of ASTM A500-98,ASTM A501-98,
ASTM A519-98,JIS G3441-1994,,JIS G3444-1994,ISO2937£¬ASTM A53£¬ASTM A106,
BS EN 10210-1. |
