Stainless Steel

ID #1029

AISI SAE 5140

(submitted by the website administration)

SAE 5140
Chemical composition: C=0.40%, Mn=0.8%, Cr=0.8%
Property	Value in metric unit		Value in US unit
Density	7.872 *10³	kg/m³	491.4	lb/ft³
Modulus of elasticity	205	GPa	29700	ksi
Thermal expansion (20 ºC)	12.6*10^-6	ºCˉ¹	7.00*10^-6	in/(in* ºF)
Specific heat capacity	452	J/(kg*K)	0.108	BTU/(lb*ºF)
Thermal conductivity	44.7	W/(m*K)	310	BTUin/(hrft²*ºF)
Electric resistivity	2.28*10^-7	Ohm*m	2.28*10^-5	Ohm*cm
Tensile strength (annealed)	572	MPa	83000	psi
Yield strength (annealed)	293	MPa	42500	psi
Elongation (annealed)	29	%	29	%
Hardness (annealed)	85	RB	85	RB
Tensile strength (normalized)	793	MPa	115000	psi
Yield strength (normalized)	472	MPa	68500	psi
Elongation (normalized)	23	%	23	%
Hardness (normalized)	98	RB	98	RB