What is the hardest stainless steel material

The hardest stainless steel is 440C stainless steel, is a kind of martensitic stainless steel, can do tools and the like, its hardness is 58 ~ HRC60.

440 stainless steel is also known as high strength tool steel. Its carbon content is slightly higher, after appropriate heat treatment can obtain higher yield strength, belongs to the hardest stainless steel.

The most common example is the "razor blade". There are three common models: 440A, 440B, 440C, and 440F (easy to process).

What is the hardest stainless steel material

High hardness of stainless steel, 440C has HRC60 hardness, is a martensitic stainless steel.

A class of alloy steels in which chromium and nickel are the main alloying elements and can be used to withstand both abrasive wear and corrosion.

There are three types: austenitic stainless steel, composition of [%(mass)] : c0.04, mn 1.3, si0.6, cr16, ni10.4, mo2.2, annealed hardness of hv148 martensitic stainless steel, become [%(mass)] : c 0.15, mn 1.0, cr 16.4, quenched and tempered hardness hv387 ferritic stainless steel, composition [%(mass)] : c 0.06, mn 0.7, si 0.4, cr 17.4, ni 0.3, annealed hardness hv180.

Generally, Martensian-type stainless steel should be selected in the process of corrosion wear where abrasive wear is dominant, and Austenitic type stainless steel should be selected in the process of corrosion wear where abrasive wear is dominant. The corrosion resistance of ferritic stainless steel is better than that of Martensitic stainless steel but worse than that of Austenitic stainless steel. But the price is lower than the Austenite size. In order to save nichchromium, iron-mang-aluminum stainless steels such as 30mn-10al-si, 20mn-7al, 30mn-7al-si and 20mn-5al have been developed.

What is the hardest stainless steel material

The highest hardness of stainless steel plate material for martensitic stainless steel, 1 said carbon content is about 1/1000, equivalent to the carbon content of 10 steel, 13 said cr content is about 13 percent, 1 said nickel content is about 1 percent. The highest hardness stainless steel plate is characterized by quenching to HR2 or so, high strength, corrosion resistance is slightly poor, weldability is also slightly poor, magnetic.