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Characteristics for grade АS40 ( АС40 )

Grade :	АS40 ( АС40 )
Classification :	Rolled steel of improved and high cutting machinability
Equivalent grades:	Is absent

Chemical composition in % for grade АS40 ( АС40 )

C	Si	Mn	Ni	S	P	Cr	Cu	Pb
0.37 - 0.45	0.17 - 0.37	0.5 - 0.8	max 0.25	max 0.04	max 0.04	max 0.25	max 0.25	0.15 - 0.3

Mechanical properties under Т=20^oС for grade АS40 ( АС40 )

Assortment	Dimension	Direct.	s_в	s_T	d₅	y	KCU	Heat treatment
-	mm	-	MPa	MPa	%	%	kJ / m²	-
Bar, GOST 1414-75			570	335	19			Normalizing

Brinell hardness for АS40 ( АС40 ) (cold-drawn, cold-worked) , GOST 1414-75	HB 10^-1 = 241 MPa
Brinell hardness for АS40 ( АС40 ) (hot-rolled) , GOST 1414-75	HB 10^-1 = 187 - 217 MPa

Types of delivery of grade АS40 ( АС40 )

В22 - Graded and shaped rolling

В32 - Graded and shaped rolling

Specification :

Mechanical properties :
s_в	- Tensile strength , [MPa]
s_T	- Yield stress, [MPa]
d₅	- Specific elongation at fracture , [ % ]
y	- Reduction of area , [ % ]
KCU	- Impact strength , [ kJ / m²]
HB	- Brinell hardness , [MPa]

Physical properties :
T	- Test temperature , [Grade]
E	- Young modulus , [MPa]
a	- Coefficient of linear expansion (range 20^o - T ) , [1/Grade]
l	- Termal (heat) condition coefficient , [Watt/(m·Grade)]
r	- Density , [kg/m³]
C	- Specific heat ( range 20^o - T ), [J/(kg·Grade)]
R	- Electrical resistance , [Ohm·m]

АS40 ( АС40 ) - Rolled steel of improved and high cutting machinability: chemical composition, mechanical and physical properties, hardness
Database of steels and alloys (Marochnik) contains information about chemical composition and properties more then 3000 steels and alloys

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