01Kh25M2T steel is used: for the manufacture of tubes of heat exchangers petrochemical equipment, parts and equipment, production of caustic soda, chlorine, petroleum refining and pulp and paper promyshlennosti operating temperature up to +300 °C; the welding wire.

Standards

Name	Code	Standards
Name	Code	Standards
Blanks. Of the workpiece. Slabs	В31	TU 14-1-3547-83
Sheets and strips	В33	TU 14-1-3622-83
Welding and cutting metals. Soldering, riveting	В05	TU 14-1-3996-85
Steel pipes and fittings to them	В62	TU 14-3-1275-83

Chemical composition

Standard	C	S	P	Mn	Cr	Si	Ni	Fe	Cu	N	Ti	Mo
Standard	C	S	P	Mn	Cr	Si	Ni	Fe	Cu	N	Ti	Mo
TU 14-1-3547-83	≤0.01	≤0.015	≤0.015	≤0.7	24-26	≤0.5	≤0.4	Rest	≤0.15	≤0.01	0.15-0.35	1.8-2.5

Fe is the basis.
According to TU 14-1-3547-83, the chemical composition is given for steel grade 01Х25М2Т-ВИ (ЧС78-ВИ).

Mechanical properties

Section, mm	s_T\|s_0,2, MPa	σ_U, MPa	d₅, %
Section, mm	s_T\|s_0,2, MPa	σ_U, MPa	d₅, %
Pipe seamless in the delivery state after quenching on the other 14-3-1275-83 (DH = 25-75 mm, wall 2-3 mm)
	≥225	≥400	≥25

Description mechanical marks

Name	Description
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

Steel 01Kh25M2T (ЧС78)

Designation

Description

Standards

Chemical composition

Mechanical properties

Description mechanical marks

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