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EN 10305-4 Steel tubes for precision applications Part 4: Seamless cold drawn tubes for hydraulic and pneumatic power systems |
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Standard: EN 10305-4
Equivalent Standards: NF 699, DIN 2391, ASTM A519, GOST 9567-75, NBR 8476, BS 6323 Part 4, NF A 49-330-85, BS 6323-4, NF A 49-310, UNI 6403 |
Material: E355, 1.0580
Equivalent Materials: St52, St52.4, CFS 5, TU 52-b, Q345B, S355GT, TU 526, FE 510 |
Chemistry Composition |
C, % |
Si, % |
Mn, % |
P, % |
S, % |
0.22 max |
0.55 max |
1.60 max |
0.025 max |
0.025 max |
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Mechanical Properties |
Tensile Strength , MPa |
Yield Strength, MPa |
Elongation, % |
Delivery Condition |
490-630 |
355 min |
22 min |
+N |
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EN 10305-4 specifies the technical delivery conditions for seamless cold drawn steel tubes of circular cross section used in hydraulic and pneumatic power systems. Tubes according to EN 10305-4 are characterised by having precisely defined tolerances on dimensions and a specified surface roughness. |
Manufacture: the tubes shall be manufactured from hot finished seamless tubes by cold drawing. Other suitable methods of cold working are permitted.
Delivery Condition: the tubes shall be delivered in the delivery condition +N which means that after the final cold drawing operation the tubes are normalized in a controlled atmosphere.
Inspection & Test: chemsitry composition analysis, tensile test, flattening test, flaring test, NDT, surface inspection and dimension check. |
Length: 5800mm; 6000mm; 10000mm; 11800mm; and so on.
Further process: cutting into short length, deformation, coating. |
Keyword: precision steel tube, EN 10305-4, precision steel pipe, high precision, HPL Tube |
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