Our consultant will save your time!



sales department

+38 (050) 369-66-30

The unique properties of such a material as the 40HNYu alloy determined its main field of application in the production of gas bearings with high resistance to corrosion damage. After all, the precision of manufacture and the strictly defined chemical composition of such precision alloys guarantees a sufficiently high operating parameters of this raw material and the reliability of semi-finished products during long-term operation.

The characteristics of the alloy 40ХНЮ

Such material refers to a non-magnetic type. Taking into account the influence of certain heat treatment regimes on the phase structure of the raw material and its mechanical characteristics, the proper selection of the technological process of material processing makes it possible to manufacture bearing parts of high accuracy. Particular attention should be paid to the ability of the 40ХНЮ alloy to maintain its stability of shape and geometric dimensions, even if the operating conditions change, so that the parts made of it can work equally well and reliably both in different industrial conditions and in different climatic zones. Adherence to optimal aging regimes and hardening of semi-finished products makes it possible to obtain a high-quality precision material with high elastic properties against the background of sufficient plasticity of the raw materials, which facilitates its subsequent processing.


Chemical composition as a percentage
silicon carbon iron manganese phosphorus nickel sulfur molybdenum
1.8−2.2 Up to 0,5 10.74−18.73 15−17 19−21 Up to 0.02 Up to 0.02 39−41
Mechanical properties (at 20 ° C)
Name of semi-finished product Characteristic
The size, mm Yield strength, MPa (sT) Short-term tensile strength, MPa (ss) Heat treatment
Thinning tape 0.1−2
1670 Aging for 2−4 hours, at a temperature of 450−550 degrees Celsius
Steel Alloy Wire

2400−3000 3200−3800

Aging for four hours at temperatures from 400 to 450 degrees.

Hardening in oil at temperatures from 1100 to 1150 degrees

Magnetic characteristics

Coercive force (not more than), (A / m) Ns
Magnetic permeability (not more than), (MH / m) Umax
Specific losses (no more) at a frequency of 50 Hz and a magnetic induction of 1 T, (W / kg) P1,0 / 50
The magnetic induction T (at least), with a magnetic field strength of 100, in magnetic fields (A / m) B100

Weldability indexes

The alloy has limitations on weldability The welding process requires some preliminary preparation (warming the contacting surfaces to one hundred and one hundred and twenty degrees and subsequent heat treatment of the seam zone)
The alloy has no weld constraints No additional operations are required
Hard to weld material It is necessary to warm the contacting surfaces to two hundred or three hundred degrees, the subsequent annealing and heat treatment after the end of the welding process

Buy at a bargain price

The 40HNYu alloy is quite popular due to its relatively low cost and high working qualities. On our site there is an extensive assortment of goods from precision raw materials, able to satisfy any needs of the buyer. The sizes of such semi-finished products are limited to the standard range, however, at the request of the customer, it is possible to manufacture products of any parameters individually.