Alloy 42 НХТЮ

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Precision alloys due to the very precise chemical composition and the absence of random impurities affecting the performance characteristics of the material have undoubted advantages that distinguish them from other structural raw materials. Despite the rather labor-consuming and expensive production of 42NHTU -type alloys, at present such materials are widely used in various areas of the industrial complex, which require not only the provision of strictly specified operational criteria, but also the high purity of the surface of the semi-finished product.

Characteristics of alloy 42 НХТЮ

All such compositions are divided into several main groups, each of which has its own area of application, determined by the unique properties of an alloy. Thus, alloy 42 НХТЮ, thanks to regulated elastic properties, is most often used in the production of critical parts, with high elasticity and operating temperature of less than one hundred degrees. All the alloys of this group belong to the type of highly alloyed materials and therefore have in their composition a wide range of special-purpose chemical elements, such as cobalt, nickel, niobium, tantalum and many others. Also, iron, chromium and manganese can be present in the raw material of this type. Depending on the qualitative and quantitative composition, such alloys are used both in radio engineering or in the production of electrical equipment, and in the manufacture of power devices, transformer devices, measuring equipment and computer or television equipment.


Chemical composition as a percentage
silicon carbon iron manganese phosphorus sulfur nickel aluminum titanium chromium
0.5−0.8 Up to 0.05 44.91−49.3 0.5−0.8 Up to 0.02 Up to 0.02 41.5−43.5 0.5−1 2.4−3 5.3−5.9
physical characteristics
Name Units Symbol The numerical value
Elastic modulus MPa E * 10−5 1.82
Measurement temperature ◦ C T 20
The index of linear temperature expansion (at t = 100 ° C) 1 / deg A * 10 6 9.5
Mechanical properties (at 20 ° C)
Name of the characteristic Numerical value of the parameter for different types of products


(GOST 14119−85)

Wire cold worked (GOST 14118−85) Wire semi-hardened (GOST 14118−85) Tape cold-worked (GOST 14117−85)
Short-term tensile strength, MPa (ss) 980 1080 980 830
Yield strength, MPa (sT) 635

Relative elongation at break,% (d5) 8

Relative narrowing,% (y) 25

Heat treatment Hardening and aging

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

Our site offers a wide range of products from precision materials. High quality products and the absence of intermediaries (working directly with the manufacturer) determine the most profitable proposals for the acquisition of materials for solving any problems of modern industry. Delivery in a short time in almost any region of the country and compliance of all products of regulatory documentation for it has long won the love and trust of regular customers. Due to the relatively low cost and a wide range and model range of semi - finished products, the 42HXTU alloy enjoys a constant demand in all spheres of production.