9SiCr T31219 9CrSi T30100 - GB /T 1299-2014

9SiCr Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu
Minimum Value	0.85	1.2	0.3	-	-	0.95	-	-
Maximum Value	0.95	1.6	0.6	0.03	0.03	1.25	0.25	0.25

9SiCr Mechanical Properties

condition	Heat Treatment or Condition	Hardness HBW
Delivery condition	Annealing	* 197~241
sample	Quenching	HRC ≥62

New and Old Grade Replacement List

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

1 Approximate Comparison Table Plastic Mold Steel

2 Approximate Comparison Table Alloy Tool Steel

9SiCr 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"!