20KHM Alloy structural steel

Steelun Designation of 20KHM Alloy structural steel:

Name The value
Designation GOST Cyrillic 20ХМ
Designation GOST Latin 20XM
Transliteration 20HM
By chemical elements 20CrMo

Description Steelun of 20KHM Alloy structural steel:

20KHM steel is used: for the manufacture of gear wheels gear boxes.

Note

Structural steel high-quality chrome-molybdenum.

Steelun Standards of 20KHM Alloy structural steel:

Name Code Standards
Name Code Standards
Bars and shapes В32 GOST 4543-71, GOST 14955-77, TU 14-1-2118-77, TU 14-11-245-88, TU 14-1-5228-93, TU 14-136-367-2008
Bars and shapes В22 GOST 8319.0-75
Blanks. Of the workpiece. Slabs В31 OST 3-1686-90, TU 14-1-4944-90
Processing of metals by pressure. Forgings В03 OST 5Р.9125-84, ST ЦКБА 010-2004

Chemical composition Steelun of 20KHM Alloy structural steel:

Standard C S P Mn Cr Si Ni Fe Cu V Ti Mo W
GOST 4543-71 0.15-0.25 ≤0.035 ≤0.035 0.4-0.7 0.8-1.1 0.17-0.37 ≤0.3 Rest ≤0.3 ≤0.05 ≤0.03 0.15-0.25 ≤0.2
Fe is the basis.
According to GOST 4543-71 the content in high-quality steel is regulated: P≤0,025%; S≤0.025%; Сu≤0.30%; in high-grade steel: P≤0,025%; S≤0.015%; Сu≤0.25%.

Steelun Mechanical properties of 20KHM Alloy structural steel:

Section, mm sT|s0,2, MPa σU, MPa d5, % y, %
Quenching in oil at 880 °C + vacation at 500 °C
≤15 600 800 12 50

Steelun Technological properties of 20KHM Alloy structural steel:

Name Description
sT|s0,2 Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σU Limit short-term strength
d5 Elongation after rupture
y The relative narrowing

You might also like

Steel Standards

15KHGN2TA Alloy structural steel

Steelun Designation of 15KHGN2TA Alloy structural steel: Name The value Designation GOST Cyrillic 15ХГН2ТА Designation GOST Latin 15XGH2TA Transliteration 15HGN2TA By chemical elements 15CrMnН2Ti Name The value Designation GOST Cyrillic 15ХГНТА

Steel Grades

12ХГН2МФБДАЮ (sun-4) Alloy structural steel

Steelun Designation of 12ХГН2МФБДАЮ (sun-4) Alloy structural steel: Name The value Designation GOST Cyrillic 12ХГН2МФБДАЮ Designation GOST Latin 12XGH2MFBDAJu Transliteration 12HGN2MFBDAYu By chemical elements 12CrMnН2MoVNbCuNAl Name The value Designation GOST Cyrillic

Gost

17Н3МА Alloy structural steel

Steelun Designation of 17Н3МА Alloy structural steel: Name The value Designation GOST Cyrillic 17Н3МА Designation GOST Latin 17H3MA Transliteration 17N3MA By chemical elements 17Н3Mo Description Steelun of 17Н3МА Alloy structural steel: 17Н3МА steel