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The characteristics of various precision alloys primarily depend on their quantitative and qualitative chemical composition. The very precise dosages of each element entering the material and the absence of various impurities caused by the shortcomings of the technological process determine very high operating properties and operating parameters of each particular brand of such raw material.

Characteristics of alloy 42H

For such materials as alloy 42H, the determining factor is the exponent of linear expansion. The value of this parameter varies within four and a half or five and a half units per degree and practically does not change with a sufficiently significant temperature fluctuation (from minus seventy to plus three hundred forty degrees Celsius). The main area of application of such material is the electrovacuum industry. Nickel, copper, manganese, silicon and some other constituent components of this technological mixture ensure its reliable and durable operation without loss of performance in different climatic conditions. Alloys of type 42Н and its analogues constitute a reliable foundation for the development and improvement of vacuum equipment.


Chemical composition as a percentage
silicon carbon iron manganese phosphorus sulfur nickel copper
Up to 0,3 Up to 0,03 56.14−58.5 Up to 0,4 Up to 0,015 Up to 0,015 41.5−43 Up to 0,1
physical characteristics
Name Units Symbol The numerical value
Elastic modulus MPa E * 10−5 1.42
Measurement temperature ◦ C T 20
Density Kg / m3 R 8200
Electrical resistance (specific) Ohm * m R * 10 9 580
Mechanical properties (at 20 ° C)
Name of the characteristic The numerical value of the parameter for the products
Tape cold-worked (GOST 14080−78)
Short-term tensile strength, MPa (ss) 930

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 preliminary preparation required
Material difficult to weld 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

Particularly popular alloys type 42H won for a fairly low cost and a wide range of products made from it. The prices for products made from such material presented on our website will pleasantly surprise you, and the available way of ordering and choosing the most convenient option of delivery will provide maximum comfort to the buyer. A huge variety of sizes and brands of products made from precision alloys will allow us to select the necessary material for solving any of the most difficult production tasks. After all, the high quality of production and full compliance of products with the requirements of state regulatory documentation and technical conditions for supply is the main criterion that our company adheres to in working with customers. Therefore, when choosing our products, the long-term reliable operation of the whole complex of production equipment is guaranteed to you.