Steel 15Х2МФА (48ТС-3-40)

Designation

Name	The value
Designation GOST Cyrillic	15Х2МФА
Designation GOST Latin	15X2MFA
Transliteration	15H2MFA
By chemical elements	15Cr2MoV

Name	The value
Designation GOST Cyrillic	48ТС-3-40
Designation GOST Latin	48TC-3-40
Transliteration	48TS-3-40
By chemical elements	48TiС-3-40

Description

15Х2МФА steel is used: for the manufacture of forgings, sheets (plates), sheet and sheet of stamped blanks intended for further the production of stamped pieces of equipment of nuclear power plants (NPP) and for items of equipment for the petrochemical industry.

Standards

Name	Code	Standards
General methods and controls and product testing. Methods of statistical quality control, reliability, durability	Т59	RD ЭО 0027-2005
Welding and cutting metals. Soldering, riveting	В05	HUNDRED 00220368-017-2010
Sheets and strips	В33	TU 108.11.906-87
Blanks. Of the workpiece. Slabs	В31	TU 108.131-86, TU 302.02.014-89

Chemical composition

Standard	C	S	P	Mn	Cr	Si	Ni	Fe	Cu	As	V	Mo	Co
TU 108.131-86	0.13-0.18	≤0.02	≤0.02	0.3-0.6	2.5-3	0.17-0.37	≤0.4	Rest	≤0.3	≤0.04	0.25-0.35	0.6-0.8	≤0.025

Fe is the basis.
According to TU 108.131-86 the chemical composition is given for steel grade 15H2MFA. In the chemical composition, deviations are allowed: carbon ± 0.010%, manganese, silicon, and vanadium ± 0.050% each, chromium ± 0.10%.

Mechanical properties

Section, mm	s_T\|s_0,2, MPa	σ_U, MPa	d₅, %	y, %	KCU, kJ/m²	HB, MPa
Billet heat-treated in the delivery condition on the other 108.131-86
160-650	≥430	540-735	≥14	≥50	≥490	187-229
160-650	≥390	≥490	≥14	≥50	-	-
160-650	≥430	540-735	≥14	≥50	≥490	187-229
160-650	≥390	≥490	≥14	≥50	-	-

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
y	The relative narrowing
KCU	Toughness
HB	Brinell hardness number