5CrMnMo T28930 - GB /T 1299-2025

5CrMnMo Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Cu	Mo	More
Minimum Value	0.5	0.25	1.2	-	-	0.6	-	0.15	Cu+Ni≤0.55
Maximum Value	0.6	0.6	1.6	0.025	0.02	0.9	0.25	0.3	Cu+Ni≤0.55

• Smelting method: Vacuum degassing

5CrMnMo Mechanical Properties

condition	Heat Treatment or Condition	Hardness HBW
Delivery condition	Annealing	197~241
Specimen	Quenching: 820-850°C, oil cooling	①

New and Old Grade Replacement List

Approximate Comparison Table Alloy Tool Steel 2

5CrMnMo 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"!