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.

I need to understand about SS304 CSP 3/4H 0.3 T

Question Naveen Singh

I need to understand each term and its meaning of – SS304 CSP 3/4H 0.3 T

Answer Tokai Spring

Thank you for your inquiry.

Generally, SUS304CSP – 3/4H. Cold-rolled austenite stainless steel “SUS304” with a composition of Cr18-Ni8 type is used for springs. It has rust-resistant properties due to the formation of a passive state on its surface, and is weakly magnetic. Known for its resistance to corrosion, weldability, and good mechanical properties
The 0.3T indicates the thickness of the material, and the 3/4H means tempering, which is adjusted to achieve a hardness of approximately 310 HV or higher.

If you have any questions, please contact us.

Best regards
TokaiSpring Support Team

Add a comment


<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

Maximum file size allowed is 4 MB.



Add another file

We are happy to answer any inquiries regarding technology, specifications, materials, etc. Please feel free to ask.

  • Request a design Further Inquiries