PH>Cold Drawn ERW Tube

EN 10305-2 (Previously BS6323 Pt 6 : 1982 CEW1)

Available in diameters from 6.35mm to 127.0mm.

The CEW tubes are used in various applications requiring, high precision dimensional tolerances, better surface finish, high tensile properties and can be produced in ‘non standard’ sizes upon request.

Similar to CFS, this product starts as a welded tube and is subsequently cold drawn.
The range is available in diameters from 6.35mm to 127.0mm.

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Mechanical Properties
Condition Yield Tensile Elongation
Re min N/mm2 Re min N/mm2 min %
BK as drawn 320 400 6
GBK annealed 150 270 27
NBK normalised 155 280 25
Tolerances
Outside Diameter
Over Up to and Including Tolerance
mm mm mm +/-
30 0.10
30 50 0.15
50 70 0.20
70 90 0.25
90 110 0.30
110 130 0.35
130 160 0.45

Also Available in BS EN 10305-2:2002

Ovality

The tolerance for outside diameter includes ovality.

Wall Thickness

The tolerance including eccentricity, shall be +/- 7.50% with a minimum of +/- 0.1mm.

Straightness

Tubes shall not depart from straightness by more than 1.5 in 1000.

Specifications

BS 6323 Part 6 : 1982 CEW 1

Chemical Composition
GRADE C % Si % Mn % P&S %
CEW 2 0.16 max 0.70 max 0.050 max
CEW 3 0.20 max 0.35 max 0.90 max 0.050 max
CEW 4 0.25 max 0.35 max 1.20 max 0.050 max
CEW 5 0.23 max 0.50 max 1.50 max 0.050 max
Chemical Composition - Ladle Analysis
C Si Mn P S
max % max % max % max % max %
0.13 0.6 0.05 0.05
Size Chart
O.D Wall 0.71 0.81 0.91 1.22 1.42 1.63 2.03 2.34 2.64 2.95 3.25 4.06 4.76 4.88 6.35 7.94 9.53 12.70
4.76 -
6.35 - x x x
7.94 - x x x x
9.53 - x x x x x x x
11.11 - x x x x x
12.70 - x x x x x x x
14.29 - x x x x x x x x
15.88 - x x x x x x x x x
17.46 - x x x x
19.05 - x x x x x x x x x
20.64 - x x x
22.22 - x x x x x x x x x x
25.40 - x x x x x x x x x x x
26.99 - x x x x x
28.58 - x x x x x x x x x
30.16 - x x x
31.75 - x x x x x x x x x
33.34 - x x
34.93 - x x x x x x x x x x
38.10 - x x x x x x x x x
39.69 - x x
41.28 - x x x x x x x x x
42.86 - x x
44.45 - x x x x x x x x x
47.63 - x x x x x x
50.80 - x x x x x x x x x x
53.98 - x x x x x
57.15 - x x x x x x x
60.33 - x x x x x x x
63.50 - x x x x x x x x
66.68 - x x x
69.85 - x x x x x x x
73.02 - x
76.20 - x x x x x x x x x
79.38 - x
82.55 - x x x x x
88.90 - x x x x
95.25 - x x
101.60 - x x x
107.95 - x x
114.30 - x x
127.00 - x x

Non standard sizes available upon request.

Contact Us
Head Office, Rose Street, Bradley, Bilston, West Midlands WV14 8TS
A trading division of Liberty Commodities Ltd. Registered in England No. 03349135.
management@hublebas.co.uk tel.+44 (0)1902 493 506 fax.+44 (0)1902 401 250