Martensitic stainless steel

mechanical properties.

Classes are basically martensitic alloy FE-CR has a higher carbon content allows them to do hard Ferritics in cold air, oil or water. Depending on the type and purpose of use, the viscosity is improved by annealing.

 

Typical applications for the martensite class:

 

Cutting Tools

Surgical instruments and dental

Fasteners, springs and bearings

Extruded

Boilers and gas turbines

 

Nature classes

Durability and hardness distinguish martensite stainless steel with stainless steel cold khac.Lam be done in air, water, oil, depending on the steel grade. If the intended application requires a high degree of hardness (eg knives, HRC55), composting will be done. Normally martensitic stainless steel is tempered to obtain useful mechanical properties, ie a certain degree of flexibility (a5 ≥ 15%).

 

Nickel-martensitic steels martensitic class traditional premium related to strength combined with toughness. Their microstructure coAustenite stability after hardening and tempering occupy good toughness without limiting the possibility of corrosion resistance.

 

Weldability

Traditional martensitic steel carbon content> 0.20% is very difficult to weld. The high carbon grade is not suitable for welding.

 

Low carbon nickel-martensitic class with relatively good weldability.

 

Corrosion Resistance

Corrosion resistant stainless steel of martensite may vary significantly depending on the chemical composition (C, Cr, Mo), and special surface heat treatment. Smooth surface is polished a higher resistance than the rough finishing. Heat treatment hardening conditions are more favorable, as the motivating factor in corrosion protection solution and also because it is effective. Composting can lead to precipitation of carbide degrade corrosion resistance. This always ltruong for traditional martensitic grades, while nickel-martensitic class with a maximum of 0.06% carbon and 3-6% nickel (1.4313 and 1.4418 for example) without sacrificing corrosion resistance by incubated.