The hardness of SWPA/SWPB/SUS materials

Tokai Spring's Forum

This is a forum detailing "spring problems" sent by

our clients which anyone can access and use to ask further questions.

keyword: SWPA; SWPB; springmaterials; SUS; tensilestrength; hardness; wirerods; microVickersvalue

Question Shimazawa 2008/12/2(Tue) 18:06

Regarding the wire rods used for the springs, normally, we see the numerical values of the tensile strength, but how about the standard numerical values of the hardness (micro Vickers value)? Please tell me the values for SWPA/SWPB/SUS materials.

Answer Tokai Spring 2008/12/3(Wed) 16:44

Thank you for writing to us, Shimazawa! The hardness varies depending on the wire diameter, so for example, for piano wire (SWP-A, B), it is necessary to convert it from the tensile strength described in JIS G3522. If you know the detailed wire diameter, please let us know.

Add a comment

Name (required):

Mail (will not be published) (required):

You may use these HTML tags and attributes:
<a href="" title="" rel="" target=""> <blockquote cite=""> <code> <pre class=""> <em> <strong> <del datetime="" cite=""> <ins datetime="" cite=""> <ul> <ol start=""> <li> <img src="" border="" alt="" height="" width="">

Upload Attachments