INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Jobs

Helical cold coiled springs specs

Helical cold coiled springs specs

(OP)
hello everyone
I would like to know if there are some tensile resistance specification to cold coiling spring raw material; i mean, must be the hardness high or low? in order to reach a final hardness betwene 48 - 52HRC

thanks a lot

RE: Helical cold coiled springs specs

As I understand your question, you are asking if there are specified hardness or UTS ranges to facilitate cold coiling. The answer is no. In my experience in the spring industry, any spring coilers are capable of cold coiling any of the available spring wires. The only thermal treatment performed on springs after coiling is stress relief and that does not generally affect spring hardness (music wire and hard drawn wire being the exceptions).

RE: Helical cold coiled springs specs

(OP)
I am just to buy a raw material for cold coiled spring, but i donĀ“t know the raw material hardness specification, the final coil spring specification is near 50HRC. Could you please let me know if I have to buy this material with the hardness value near the final specification.

RE: Helical cold coiled springs specs

Spring wire is supplied to a specific tensile strength rather than hardness. If you buy chrome silicon spring wire, it is not uncommon to find this material in the range of Rc 50. You really need to get better definition from your customer about what spring properties are desired.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close