Alloy ХН60КМЮВТБ (EK9)

Designation

Name The value
Designation GOST Cyrillic ХН60КМЮВТБ
Designation GOST Latin XH60KMJuBTB
Transliteration HN60KMYuVTB
By chemical elements CrNi60CoCuAlВTeBe
Name The value
Designation GOST Cyrillic ЭК9
Designation GOST Latin EK9
Transliteration EhK9
By chemical elements -

Description

Alloy ХН60КМЮВТБ used: for the production of pellet-prescisely obtained by hot pressing (extrusion), alloy smelted in open furnaces with subsequent vacuum arc remelting and intended for subsequent remelting and fabrication of castings and fasteners, and gas turbine aircraft industry.

Note

High-temperature Nickel-based alloy.
The recommended maximum operating temperature for a limited time — 800−900 °C.
The temperature of beginning of intensive scaling in air 1100−1150 °C.

Standards

Name Code Standards
Bars and shapes В32 TU 14-1-4426-88

Chemical composition

Standard C S P Mn Cr Si Ni Fe Al B Ti Mo Nb W Ce Co Sr Mg
TU 14-1-4426-88 0.1-0.15 ≤0.01 ≤0.015 ≤0.3 19-20 ≤0.3 Rest ≤1.5 3-4 ≤0.12 2-3 3-4 1.4-2 2.5-4 ≤0.02 4-6 ≤0.05 ≤0.05
Ni is the basis.
According to TU 14-1-4426-88, the chemical composition is given for the alloy grade KhN60KMYUVTB-VD (EC9-VD). Boron, strontium, magnesium are introduced into the metal by calculation and chemical analysis are not determined. In the finished metal, a chemical composition deviation according to the chromium content is allowed, plus 0.50%.

Mechanical properties

σU, MPa d y, %
Bars-pressestelle on the other 14-1-4426-88. Homogenizing annealing with 1160-1180 °C (aging for 3.0-3.5 h), air cooling
≥442 ≥8 ≥20

Description mechanical marks

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

Technological properties

Name The value
Macrostructure and pollution The macrostructure of bars-prescisely on the other 14-1-4426-88 should not have cracks, bubbles, inclusions, visible to the naked eye.
Particularities of production of goods Bars-pressestelle on the other 14-1-4426-88 come after etching. On the surface of pellet-prescisely allowed cracks, flaws, volosovichi that are not defects of the macrostructure.