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HN58 W alloy


Grade analogue W. Nr. Aisi Uns En Order
KhN56VMTYu EP199 Buy from stock, view availability

General characteristics

Alloys consists of two or a few chemical components, at least one of which is a metal. Heat-resisting stainless alloys are metallic materials. They possess high resistance to bearing failure at high temperatures and oxidizing environment.

Chemical composition of alloy

Ni Cr Mn Fe C P Si S W
≤0,015 ≤0,8 Basis ≤1 39 — 41 ≤0,012 0.5 — 1.5 ≤0.15  


Qualities of HN58 W grade change depending on an operating temperature. At 20 °C, density is 8,1 g/cm³, specific electric resistance is 1,18 Ohm-mm2/m, specific heat is 375 J/(kg-K). Heat conduction coefficient is about 0,126 10² V/(m К). This steel has a good weldability due to balanced chemical composition. It allows making constructions without using complex processing equipment and without heat treatment after welding.


HN58 W pipes are classified by a diameter and by a thickness of walls. Very thin-walled pipes have Ø of 5−250 mm and wall thickness of 0,3 — 6 mm. Thick-walled pipes have Ø of 5−250 mm at thickness of 0,6 — 20 mm. Thin-walled pipes have Ø of 0,6 — 25 cm at thickness of 0,16 — 2,4 cm. Very thick-walled pipes have Ø of 0,6 — 7,0 cm, and thickness of walls 0,2 — 1,2 cm. Thermohardening performs at a temperature of 1000 — 1100ºС with further cooling in water or in air for increase of structural requirements. It conduces to normalization of inherent stress in a material and to increasing of strength characteristics of details.


Welding constructions, assembly modules, details made of HN85 W steel are intended for long-term exploitation in chemical, oil-, gas-processing industry, and energetics at a temperature of <850ºС. This steel is used in manufacture of heat exchangers, special tanks, pipe-arrangements of different cross-sections.

Value of linear expansion thermal coefficient α

20 — 100°С 20 — 200°С 20 — 300°С 20 — 400°С 20 — 500°С 20 — 600°С 20 — 700°С 20 — 800°С 20 — 900°С
α 106,0 К-1 10.4 10.8 10.95 11.55 11.9 12.3 12.85 12.9 13

Buy HN58 W alloy at a bargain price

You have to take into account a range of factors when choosing heat-resisting alloys. A wide selection of heat-resisting metal-roll for order in advance is presented in «Auremo» company. Here you can buy HN58 W alloy on the most favourable terms. HN58 W alloy price from HN58 W alloy supplier is conditioned by technological details of production without including additional expenses. Our specialists are always ready to help when selecting required products, which determine capability and reliability of future equipment. We guarantee a high quality of products and fast delivery. You can find all information about goods on company’s web-site. We offer beneficial HN58 W alloy price from HN58 W alloy supplier for regular customers.