9Cr3Mo T42351 - GB /T 1299-2025

9Cr3Mo Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Mo
Minimum Value	0.85	0.25	0.2	-	-	2.5	-	0.2
Maximum Value	0.95	0.45	0.35	0.02	0.015	3.5	0.25	0.4

9Cr3Mo Mechanical Properties

condition	Heat Treatment or Condition	Hardness HBW
Delivery condition	Annealing	≤255
Specimen	Quenching at 890-950°C, air or oil cooling	HRC: ≥64

9Cr3Mo Corresponding Standards(Same grade name, different standards)

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!