7Cr7Mo2V2Si T23740 - GB /T 1299-2025

7Cr7Mo2V2Si Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Cu	Mo	V	More
Minimum Value	0.68	0.7	-	-	-	6.5	-	1.9	1.8	Cu+Ni≤0.55
Maximum Value	0.78	1.2	0.4	0.03	0.015	7.5	0.25	2.3	2.2	Cu+Ni≤0.55

7Cr7Mo2V2Si Mechanical Properties

condition	Heat Treatment or Condition	Hardness HBW
Delivery condition	Annealing	≤255
Specimen	Quenching at 1100-1150℃, oil or air cooling	HRC: ≥60

New and Old Grade Replacement List

Corresponding Standard	Grade
GB /T 1299-2014	Grade China ISC Other Name Other Name
GB /T 1299-2025	Grade China ISC

7Cr7Mo2V2Si 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"!