Cold Drawn Seamless Hydraulic Tube (CFS NBK)

EN10305-4 (Previously BS3602 Pt 1 CFS360 NBK)

The Cold Drawn Seamless Hydraulic Tube is typically used on Hydraulic and Pneumatic applications.

All tubes are Eddy Current tested and marked with Size, Cast Number and Specification.

  • Mechanical Properties at Room Temperature
  • Tolerances
  • Specifications
  • Chemical Composition - Ladle Analysis
  • Size Chart
Mechanical Properties at Room Temperature
Condition Tensile RM Strength Min Yield
+N Normalized Min Max
EN 10305-4 340 480 235
Tolerances

Wall Thickness

The tolerance including eccentricity shall be +/- 10%

Tolerances on Outside Diameter EN10305-4 +/-
4 – 10mm 0.08mm
10 – 30mm 0.08mm
30 – 40mm 0.15mm
40 – 50mm 0.2mm

All tubes are marked with both size, cast number, specification and are eddy current tested.

Specifications

BS EN 10305-4 E235 +N

Chemical Composition – Ladle Analysis
C Si Mn P S
Max % Max % Max % Max % Max %
0.17 0.35 1.20 0.025 0.015
Size Chart

BS EN 10305-4 E235 +N

Wall 0.91 1.00 1.22 1.42 1.50 1.63 2.00 2.03 2.50 2.64 2.95 3.00 3.25 3.66 4.00 4.06 4.88 5.00 6.00
O.D mm
6.00 x x x
6.35 x x x
7.94 x x x x
8.00 x x x
9.52 x x x x x
10.00 x x x
12.00 x x x x
12.70 x x x x x
13.50 x
14.00 x x x x
15.00 x x x x x
15.88 x x x x x x
16.00 x x x x
17.46 x
18.00 x x x
19.05 x x x x x
20.00 x x x x x
21.43 x x
22.00 x x x x
22.22 x x x x x
25.00 x x x x x
25.40 x x x x x
26.99 x
28.00 x x x x
30.00 x x x x
31.75 x x x x x
34.13 x
34.93 x
35.00 x x x x
38.00 x x x x x
38.10 x x x
42.00 x x
44.45 x x
48.42 x
50.00 x
50.80 x x x x x

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