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Ot Diameter Torlerances
|
Estándar |
Diámetro de salida |
Tolerancia |
|
GB3087 |
≤180 |
±1.0%(min: ±0.5mm) |
|
GB5310 |
≤50 |
±0.5mm |
|
>50 |
±1.0% |
Wall Thickness Tolerances
|
Estándar |
Espesor de pared(mm) |
Espesor de pared |
|
GB3087 |
3-20 |
+15%,12.5% |
|
>20 |
±12.5% |
|
|
GB5310 |
<3.5 |
+15%,-10% |
|
3.5-20 |
+15%,-10% |
|
|
>20 |
±10% |
Chemical composition and mechanical properties
|
Estándar |
Grado |
Composición química(%) |
Propiedades mecánicas |
||||||
|
C |
Si |
Mn |
P |
S |
Resistencia a la tracción(Mpa) |
Límite elástico(Mpa) |
Alargamiento(%) |
||
|
DIN17175 |
St35.8 |
≤0.17 |
0.10-0.35 |
0.40-0.80 |
≤0.030 |
≤0.030 |
360-480 |
≥235 |
≥25 |
|
St45.8 |
≤0.21 |
0.10-0.35 |
0.40-1.20 |
≤0.030 |
≤0.030 |
410-530 |
≥255 |
≥21 |
|
How much is the largest diameter of boiler tube?
___Howar(Columbia)
The quality is good.
___Gaskell(Guyana)
Logistics is very very fast.
___Noah(Germany)
Bare pipe is also good-looking.
___Adolph(Yemen)
Price of tubes is cheaper than other suppliers.
___Hyman(Bangladesh)
