What are the heat treatment methods for valve stem materials?

What are the heat treatment methods for valve stem materials?

1. GB1220 12Cr13 (Quenching + high temperature tempering)

2. ASTM A182 F6a II (Normalizing + high temperature tempering)

3. ASTM A182 F6a II (normalizing + secondary tempering ≤22HRC)

4. Solid solution of ASTM A182 F316, F304, F316L, F304L, F321, F317, F37, etc

5. ASTM A182 F51 (Solid solution treatment)

6. ASTM A182 F53 (Solid solution treatment)

7. 25Cr2MoIVA (normalizing + high temperature tempering)

8. 20Cr1Mo1V1A (normalizing + high temperature tempering)

9. AISI 4140 (Quenching + tempering)

10. ASTM A182 F11 (normalizing + high temperature tempering)

11. GB1220 2Cr13 (Quenching + high temperature tempering)

12. ASTM A182 F5 (Normalizing + tempering)

13. ASTM A182 F44 (Solid Solution)

14. ASTM A182 F53 (Solid Solution)

15. ASTM A182 F55 (Solid Solution)

16. ASTM B649 N08904 (904L) (Solution)

17. ASTM A182 FXM-19 (Solid Solution)

18, ASTM B654 UNS (INCONEL 625), (INCONEL 600) (Annealing)

19, ASTM B637 UNS N07718 (INCONEL 718) (Solution + precipitation hardening)

20, ASTM B564 UNS (INCOLOY 800), (INCOLOY 825) (annealing)

21. ASTM A638 660 (solid solution + precipitation hardening)

22. ASTM B865 UNS N05500 (MONEL K-500) (Solution treatment + aging treatment)

23. Qal9-4 (Annealing)