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Heat resistant steels and alloys

Technical Characteristics

The main properties that distinguish heat-resistant grades from other alloys are their high resistance to creep and long-term strength. It is these qualities show how long the products are able to work in conditions of exposure to elevated temperatures. The most common in use is heat-resistant steel, where the main element is chromium. Also heat-resistant steel differs in the type of hardening, the method of alloying, and the number of elements. «Auremo» is a profitable supplier in the heat-resistant segment.


Nickel-based alloys obtain enhanced heat resistance not only through multicomponent alloying, but also through subsequent heat treatment. Highly alloyed steels contain more than 10% of alloying elements. For example the alloy 20Х20Н14С2 has in its composition 12−15% nickel and 19−22% chromium. Manganese up to 1.5%, copper 0.3%, silicon 2−3%, carbon and titanium 0.2%, sulfur, and phosphorus are added to the blend as additives.

Cu Si C Mn P Cr Ni S Ti  
≤0,3 2−3 ≤0,2 ≤1,5 ≤0,035 19−22 12−15 ≤0,025 ≤0,2  

Heat-resistant grade 20Х25Н20С2 refers to highly alloyed iron-based alloys smelted in an induction furnace.

Percentage composition according to GOST 5632−72
Grade C Si Mo V Cr Cu Mn Ni Ti W S P Fe
20Х25Н20С2 ≤0,2 2−3 ≤0,3 ≤0,2 24−27 ≤0,3 ≤1,5 18−21 ≤0,2 ≤0,2 0,02 0,035 Basis

Stainless heat-resistant grade 12X25n16g7ar has in its composition of nickel 15−18%, chromium 23−26%.

Percentage composition of 12X25n16g7ar GOST 5632−72

Mass fraction of components, %
C Si Mn Cr Ni N B S P Fe
≤0,12 ≤1,0 5,0−7,0 23−26 15−18 0,3−0,45 ≤0,010 ≤0,020 ≤0,035 Basis


Unparalleled properties possessed by heat-resistant alloys have become one of the main reasons for their successful use in various fields of human activity. Jet technology would be unthinkable without special high-temperature alloys for gas turbine engines… Modern automotive engineering would be unthinkable without these high-temperature alloys. Chemical reactors, tanks, boilers and crucibles with high corrosion resistance are made of such alloys. Heat-resistant materials play the most important role not only in the structures of gas turbine engines, but also in the structures of nuclear boilers. Heat-resistant cladding is used to protect uranium rods from corrosion in nuclear reactors.


Where can I buy heat-resistant steel? Supplier «Auremo» offers to buy heat resistant steel on favorable terms. Wholesale customers are offered a preferential price. Large selection at the warehouse of the supplier «Auremo», full compliance with GOST and international quality standards. Always in stock heat-resistant steel, the price — the best from the supplier. We are waiting for your orders.

Buy a bargain price.

Supplier «Auremo» offers on favorable terms to buy heat-resistant steel, the price — due to the technological features of production without the inclusion of additional costs. The company’s website displays the most up-to-date information. It is possible to buy products with non-standard parameters to order. The order price depends on the volume and additional terms of delivery. Supplier «Auremo» invites you to buy heat-resistant rolled products in bulk or in installments. We have the best price-quality ratio for the whole range of products. In this segment «Auremo» is a profitable supplier.