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Alloy 16ХНКГМБ (ЭП899)

Designation

Name The value
Designation GOST Cyrillic 16ХНКГМБ
Designation GOST Latin 16XHKGMB
Transliteration 16HNKGMB
The chemical elements 16CrNiCoGeCuBe
Name The value
Designation GOST Cyrillic ЭП899
Designation GOST Latin EP899
Transliteration EhP899
The chemical elements -

Description

Alloy 16ХНКГМБ used: for the manufacture of steam turbine blades, valves, parts with high ductility, load and operating at temperatures up to 450−500 °C; products exposed to slightly aggressive media at room temperature; the various parts of aviation.

Standards

Name Code Standards
Classification, nomenclature and general norms В20 OST 1 90005-91
Steel alloy wire В73 TU 1-92-171-90

Chemical composition

Standard C S P Mn Cr Si Ni Fe Al B Ti Mo Nb Ce Co
TU 1-92-171-90 ≤0.05 ≤0.02 ≤0.01 0.8-1.2 15-16 ≤0.3 6.5-7.5 The rest 0.3-0.5 ≤0.01 0.5-1 2.3-2.9 0.3-0.5 ≤0.05 3-3.5
Fe is the basis.

Mechanical characteristics

σB, MPa HRC
Gradation of performance properties of the finished heat-treated parts for OST 1 90005-91
1470-1615 48-50

Description mechanical marks

Name Description
σB Limit short-term strength
HRC Rockwell hardness (indenter diamond spheroconical)

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