30CrMo - GJB 1220A-2008

Grade	30CrMo
Corresponding Standard	GJB 1220A-2008 Speification for alloy structure steel bar for artillery parts
Classification	Alloy Steel

30CrMo Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo
Minimum Value	0.26	0.17	0.4	-	-	0.8	-	-	0.15
Maximum Value	0.34	0.37	0.7	0.03	0.03	1.1	0.3	0.25	0.25

30CrMo Mechanical Properties

diameter d mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Hardness HBW	Impact Energy Absorption KV2 J
d=25	880°C Quenching, Water or Oil Cooling, 540°C Tempering, Water or Oil Cooling	≥930	≥785	≥12	≥50	-	KU2 ≥63
Steel	Annealing or Tempering	-	-	-	-	≤229	-

30CrMo 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"!