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Application£ºFor conveying of petroleum,gas and other fluids.
Dimension Tolerances£º
|
Pipe types |
Pipe size mm |
Tolerances ( Standard) |
|
Hot Rolled |
OD
D |
all |
¡À1%£¨ Min¡À0.50£© |
|
WT
s |
all |
+15%
-12.5%( Min+0.45
-0.40) |
|
Cold Drawn |
OD
D |
6~10 |
¡À0.20mm |
|
10~30 |
¡À0.40mm |
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30~50 |
¡À0.45mm |
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>50 |
¡À1% |
|
WT
s |
¡Ü1 |
¡À0.15mm |
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>1~3 |
+15%
-10% |
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>3 |
+12.5%
-10% |
Mechanical Properties:
|
Item NO |
Grade |
Tensile Strength¦Òb
Mpa |
Yield Strength
¦Ò0.2, Mpa |
Elongation
¦Ä5
% |
|
¡Ü16 |
>16 |
|
MIN |
|
1 |
10 |
335~475 |
205 |
195 |
24 |
|
2 |
20 |
410~550 |
245 |
235 |
20 |
|
3 |
Q345 |
490~665 |
325 |
315 |
21 | Chemical composition:
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Standard
|
Grade
|
Chemical composition |
|
C |
Si |
Mn |
P |
S |
Cr |
Ni |
Cu |
|
GB/T8163 |
10 |
0.07¡«0.14 |
0.17¡«0.37 |
0.35¡«0.65 |
¡Ü0.035 |
¡Ü0.035 |
¡Ü0.15 |
¡Ü0.25 |
¡Ü0.25 |
|
20 |
0.17¡«0.24 |
0.17¡«0.37 |
0.35¡«0.65 |
¡Ü0.035 |
¡Ü0.035 |
¡Ü0.25 |
¡Ü0.25 |
¡Ü0.25 |
|
Q345 |
0.12¡«0.20 |
0.20¡«0.55 |
1.20¡«1.60 |
¡Ü0.045 |
¡Ü0.045 |
/ |
/ |
/ | Products can be also supplied according to the standard of ASTM A53-98, ASTM A192,
ASME S192, JIS G3452-1998, JIS G3454-1998, DIN 1629-1984, ISO 559: 1991, ASTM A106£¬
JIS G 3458. |
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