Dear Tokai Spring, I have a question for you.
The standard values for components of SUS301-CSP and SUS301 is the same, right? I think although the thermal refining improves mechanical properties, the heat treatment only acts as a solubilization treatment because they are originally austenitic stainless steel. Is this correct?
And how do you manufacture 1/2H, 3/4H, H, EH, and SEH materials differently?
Thank you for writing to us, Gorgo 4313!
After solubilization treatment, cold rolling is performed. And the rolling ratio of that cool rolling process is the factor to distinguish the thermal refining process.
Does it mean that cool rolling is performed with the same purpose as work hardening which is achieving the hardness?
Then, low-temperature annealing means stress relief, right? That is why SUS springs turn yellow (temper color).
This helps me understand so many questions I have had for years at the same time.
Hello!
Question: Does it mean that cool rolling is performed with the same purpose as work hardening which is achieving the hardness?
Answer: That’s right!
Question: Then, low-temperature annealing means stress relief, right? That is why the SUS spring turns yellow (temper color).
Answer: You’re not wrong there!
