Steel AS40

Designation

Name	The value
Designation GOST Cyrillic	АС40
Designation GOST Latin	AC40
Transliteration	AS40
By chemical elements	-

Description

Steel AS40 used: for the manufacture of hammer stamps, bandages and matrices.

Note

Lead-carbon steel high machinability.

Standards

Name	Code	Standards
Bars and shapes	В32	GOST 1414-75, GOST 14955-77

Chemical composition

Standard	C	S	P	Mn	Cr	Si	Ni	Fe	Cu	Pb
GOST 1414-75	0.37-0.45	≤0.04	≤0.04	0.5-0.8	≤0.25	0.17-0.37	≤0.25	Rest	≤0.25	0.15-0.3

Fe is the basis.
In accordance with GOST 1414-75, by agreement with the consumer, replacement of lead with selenium is allowed. In this case, the amount of selenium should be 2.5 times less than that of lead.

Mechanical properties

Section, mm	s_T\|s_0,2, MPa	σ_U, MPa	d₅, %	HB, MPa
Bars up to 100 mm. Normalization
25	≥335	≥570	≥19	≤187

Description mechanical marks

Name	Description
s_T\|s_0,2	Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σ_U	Limit short-term strength
d₅	Elongation after rupture
HB	Brinell hardness number