Precision Alloy 29KNBVTYU-VI

No foreign analogues

It is made by vacuum induction melting, designed for the same purposes as alloy 29KNBVTYU

Classification

Country Section Category
CIS, Russia, Ukraine Precision alloys With given TCLE

Chemical composition

Standard Fe, % Si, % B, % Mn, % Co, % Ti, % Ni, % Al, % Ce, % Nb, % La, % W, % ET, %
GOST 10994-74 30.93–37.2979 < 0.3 0.0001–0.03 < 0.3 28.5–30 0.6–1.2 26.5–28 0.4–0.9 0.001–0.03 5.9–6.8 0.001–0.02 0.8–1.4 < 0.09

Information on suppliers

Physical characteristics

Temperature, °C $$E\cdot 10^{9}$$, $$MPa$$ $$\alpha\cdot 10^{6}$$, $$K^{-1}$$
20 132 8.2–8.4

Mechanical properties at 20 °C

Rolling Standard Size, mm Tension Classifiers $$\sigma _{U}$$, $$MPa$$ $$\sigma_{Y}$$, $$MPa$$ d5, % Treatment
Rod GOST 10994-74 10 Transverse 600–680 230–240 20–22

Brinell hardness number

Rolling Standard Classifiers Value, HBW
Rod GOST 10994-74 200–210

Technological Properties

Weldability Flake Susceptibility Propensity to temper brittleness
Boundedly welded not sensitive loathsome

Limit operating modes

Standard Температура, °C
GOST 10994-74 < 250

Heat Treatment Modes

Treatment
Quenching and aging

Analogues

Russia
Сплав ЭК20-ВИ

Standards

Standard Description
GOST 10994-74

Description of chemical elements

Element Units of measurement Description
ET % Total other items
Fe % Iron
Si % Silicon
B % Bor
Mn % Manganese
Co % Cobalt
Ti % Titan
Ni % Nickel
Al % Aluminium
Ce % Cerium
Nb % Niobium
La % Lanthanum
W % Tungsten

Description of physical characteristics

Parameter Units of measurement Description
$$E\cdot 10^{9}$$ $$MPa$$ Elastic modulus
$$\alpha\cdot 10^{6}$$ $$K^{-1}$$ Coefficient of thermal (linear) expansion (range 20°C–T)

Description of mechanical properties

Parameter Units of measurement Description
d5 % Elongation at break
$$\sigma_{Y}$$ $$MPa$$ Yield strength
$$\sigma _{U}$$ $$MPa$$ Ultimate tensile strength

Designation of types of weldability

Parameter Units of measurement Description
no limits Welding is performed without heating and without subsequent heat treatment
Boundedly welded Welding is possible with heating up to 100–120 °C and subsequent heat treatment
Difficult to weld For obtaining quality welded joints, additional operations are required: heating up to 200–300 °C for welding, heat treatment after welding — annealing
Not applicable for welded structures