AISI 4130, Low alloy steel, Quenched & Tempered, Mechanical Properties

Designation

AISI 4130
Condition	Quenched & tempered
UNS number	G41300, ~H41300, ~K13047
US name	AMS 6345, AMS 6346, AMS 6348, AMS 6350, AMS 6356, AMS S 6758, AMS 6370, AMS 6371
EN name	30CrMo4
EN number	1.7216, 1.7220, 1.7221, 1.7226, 1.7230

Young’s modulus	200	–	210	GPa
Specific stiffness	25.5	–	26.9	MN.m/kg
Yield strength (elastic limit)	690	–	1140	MPa
Tensile strength	862	–	1240	MPa
Specific strength	88.1	–	145	kN.m/kg
Elongation	8	–	12	% strain
Compressive strength	752	–	1190	MPa
Flexural modulus	200	–	210	GPa
Flexural strength (modulus of rupture)	690	–	1140	MPa
Shear modulus	76	–	79.9	GPa
Bulk modulus	185	–	195	GPa
Poisson’s ratio	0.32	–	0.333
Shape factor	27
Hardness – Vickers	420	–	515	HV
Elastic stored energy (springs)	1220	–	3000	kJ/m^3
Fatigue strength at 10^7 cycles	555	–	639	MPa
Fatigue strength model (stress range) Parameters: Stress Ratio = -1, Number of Cycles = 1e7cycles	423	–	838	MPa