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Seamless HPL pipes, galvanized or phosphated EN 10305-4 for hydraulic and pneumatic motors Precision steel pipes used in pneumatic and hydraulic systems, often abbreviated as HPL, are subject to special requirements for anti-corrosion protection. Such protection is fully provided by the seamless steel pipe produced in accordance with the European standard EN 10305-4. Key Features […]
Seamless HPL pipes, galvanized or phosphated EN 10305-4 for hydraulic and pneumatic motors
Precision steel pipes used in pneumatic and hydraulic systems, often abbreviated as HPL, are subject to special requirements for anti-corrosion protection. Such protection is fully provided by the seamless steel pipe produced in accordance with the European standard EN 10305-4.
Key Features
In EN 10305-4 pipe corrosion of the base metal is prevented by a protective galvanized layer. In addition, this coating gives the product a more aesthetic appearance.
The protective coating is multi-layered. The zinc layer is applied first, protecting the metal of the pipe itself. The second, which is called passivating, is zinc. In this case, passivation is performed only on the outer surface of the product.
with a silicon base stabilizing the chromium layer.
Products are available in a wide range of diameters and wall thicknesses.
Applications
It is recommended to buy a seamless galvanized pipe for use in the manufacture and regeneration of hydraulic and pneumatic motors, hydraulic pipelines and pneumatic systems.
Chemical composition
| Steel grade |
% |
|||||
| Character |
C max. |
Si max. |
Mn max. |
P max |
S max |
Al gen. Max |
| E215 |
0,10 |
0.05 |
0.70 |
0.025 |
0.015 |
0.025 |
| E235 |
0.17 |
0, 35 |
1.20 |
0.025 |
0.015 |
– |
| E355 |
0.22 |
0.55 |
1.60 |
0.025 |
0.015 |
– |
Mechanical properties
| <spanstyle=’ ‘=””> Steel grade</spanstyle=’> |
Plastic limit ReH Min MPa |
Tensile Strength Rm Min MPa |
Stretch A Min % |
| Character | |||
| E215 |
215 |
290 to 430 |
30 |
| E235 |
235 |
235 to 480 |
25 |
| E355 |
355 |
490 to 630 |
22 |
Delivery forms of HPL seamless galvanized or phosphated pipes EN 10305-4
|
steel grade |
Sizes supplied |
| Pipe Steel E215 | Outer Diameter: 4-100mm
Inner Diameter: 0 ,5-10mm |
| Pipe Steel E235 | |
| Pipe Steel E355 |
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