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Alloy ХН40М5Т2ГЮБР (ЭК173)

Designation

Name The value
Designation GOST Cyrillic ХН40М5Т2ГЮБР
Designation GOST Latin XH40M5T2GJuBP
Transliteration HN40M5T2GYuBR
The chemical elements CrNi40Cu5Te2GeAlBeHg
Name The value
Designation GOST Cyrillic ЭК173
Designation GOST Latin EK173
Transliteration EhK173
The chemical elements -

Description

Alloy ХН40М5Т2ГЮБР applies: for production of wire intended for the manufacture of springs operating at elevated temperatures, for nuclear power plants.

Standards

Name Code Standards
Steel alloy wire В73 TU 14-131-983-2001

Chemical composition

Standard C S P Mn Cr Si Ni Fe N Al V B Ti Mo Nb Co
TU 14-131-983-2001 0.04-0.08 ≤0.02 ≤0.02 1-1.7 17-19 ≤0.5 39-42 The rest ≤0.05 0.9-1.3 0.05-0.2 0.005-0.008 1.8-2.5 4.5-5.5 0.25-0.6 ≤0.02
Fe is the basis.
According to TU 14-131-983-2001, the chemical composition is given for an alloy of the brand KhN40M5T2HYUBR-ID (EC173-ID), melted in a vacuum induction furnace with subsequent vacuum-arc remelting. Mass fraction of boron is indicated by calculation and chemical analysis is not determined. Deviations in chemical composition and content of residual elements are allowed in accordance with GOST 5632.

Mechanical characteristics

Section, mm σB, MPa d y, %
Wire of alloy grade ХН40М5Т2ГЮБР-ID as supplied on the other 14-131-983-2001 (in the graph δ is the parameter δ100; in the graph, the relative narrowing of ψ indicates the estimated degree of cold deformation in %)
0.9; 1.1 1250-1500 ≥1 50 (+3/-4)
0.9; 1.1; 1.5 ≥1100 ≥1 30
1.5 1250-1500 ≥1 50 (+3)
5.6 1100-1250 ≥1 43

Description mechanical marks

Name Description
Section Section
σB Limit short-term strength
d Elongation after rupture
y The relative narrowing

Technological properties

Name The value
Features of production Wire on the other 14-131-983-2001 supplied in cold-worked condition with the calculated degree of cold deformation of 30-50%. Check the wire on the winding. After winding five turns of wire on a rod with a diameter equal to four times the diameter of the wire, it should not have cracks and delamination.

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