20ХГНМТА Alloy structural steel

Steelun Designation of 20ХГНМТА Alloy structural steel:

Name The value
Designation GOST Cyrillic 20ХГНМТ
Designation GOST Latin 20XGHMT
Transliteration 20HGNMT
By chemical elements 20CrMnНMoTi
Name The value
Designation GOST Cyrillic 20ХГНМТА
Designation GOST Latin 20XGHMTA
Transliteration 20HGNMTA
By chemical elements 20CrMnНMoTi

Description Steelun of 20ХГНМТА Alloy structural steel:

20ХГНМТА steel is used: for the manufacture of parts of devices operating on friction; details of auxiliary units of machines and devices; tilanguyen gears car by hot stamping.

Note

Structural steel quality homomorphically with molybdenum and titanium.

Steelun Standards of 20ХГНМТА Alloy structural steel:

Name Code Standards
Bars and shapes В22 GOST 2590-2006
Bars and shapes В32 TU 3-79-80, TU 14-1-3324-82

Chemical composition Steelun of 20ХГНМТА Alloy structural steel:

Standard C S P Mn Cr Si Ni Fe Ti Mo
TU 14-1-3324-82 0.18-0.23 ≤0.025 ≤0.025 0.8-1.1 0.8-1.1 0.17-0.37 0.8-1.1 Rest 0.03-0.09 0.2-0.3
Fe is the basis.
According to TU 14-1-3324-82, the chemical composition is given for steel grade 20HGNMTA. Deviations according to the chemical composition in accordance with GOST 4543. According to the manufacturer’s agreement with the consumer, the hire is supplied with a mass fraction of sulfur in the range of 0.010-0.025%. The steel controls the austenite grain, which should be within the range of 5-8 according to GOST 5639.

Steelun Mechanical properties of 20ХГНМТА Alloy structural steel:

Section, mm sT|s0,2, MPa σU, MPa d5, % y, % KCU, kJ/m2
Long products hot-rolled steel 30-150 mm on THAT 14-1-3324-82. Normalization at 920-950 °C + Quenching in oil with 850-870 °C + Vacation at 200 °C, air cooling
15 ≥1175 ≥1270 ≥11 ≥50 ≥784

Description mechanical marks steelun of 20ХГНМТА 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
KCU Toughness

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