Spring Steel Bar

We are now able to offer spring steel bar in small quantities. We stock EN9, and EN45

EN45 is a silicon manganese spring steel (approx. 0.55% carbon), suitable oil hardning and tempering. EN45 is suitable for the manufacture of springs and blades. it is wideley used for naking automotive leaf springs and much favoured in the manufacture of historical blades. Closely related or equivalent grades include 250A53, 250A57 and 55SiMn7.

EN9, also known as 070m55, as a carbon content 0.50/0.60 this is a medium carbon steel which can develop a tensile strength of 700N/mm 45tsi. In the normalised condition EN9 can be used for gears, sprockets and cams.

We can supply almost any quantity from a single bar shipped anywhere in the UK , usually (subject to stock), within 48 hours. We now offer EN47 round spring steel bar, details can be found here

Grade C % Si % Mn % S % P %
EN9 0.50/0.60 0.05/0.35 0.50/0.80 0.06max 0.06max
EN45 0.50/0.60 1.50/2.00 0.70/1.00 0.05max 0.05max
EN43 0.45/0.60 0.10/0.40 0.60/0.80 0.05max 0.05max
The sizes we stock
Imperial     Metric  
EN45 1.1/2   3/16   40 4
EN45 1.1/4   3/8   50 5
EN45 1.1/2   1/4   60 6
EN45 1.1/2   3/8   70 6
EN45 1.3/4   1/4   70 7
EN45 2   1/4   75 6
EN45 2   5/16   70 8
EN45 2.1/2   3/16   60 9
EN45 2.1/4   1/4   60 10
EN45 3   5/16   80 10
EN45 4   1/2 90 12.7
EN45 5   3/4   80 15

 

EN9 1   3/16   40 5
EN9 2.1/2   3/16   32 6
EN9 1   1/4   23 10
EN9 1.1/2   1/4   26 10
EN9 1.3/4   1/4   32 10
EN9 2   1/4   40 10
EN9 3   1/4   75 10
EN9 2   3/8   100 10
EN9 1.1/2   1/2   125 10
EN9 2   1/2   76 12

Larger sizes available, please call to check
 

Contact Details
  • Telephone 01709 820070
  • Fax 0114 244 5922
  • email bss@steelstrip.co.uk
  • Office Hours Monday to Thursday 09.00-17.00
  • Office Hours Friday 09.00-16.00
  • Fernite Works, Coleford Rd, Sheffield S9 5NJ

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Next Day Delivery on orders placed before 12pm

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