FV 520B

FV 520B Stainless Steels

FV 520B - Specification & Application

High strength, high toughness, high abrasion resistance, high corrosion resistance, welding performance is very good

Chemical composition(wt.%) of FV 520B grade:

FV 520B - Detail

1050 ℃ solid solution treatment + 850 ℃ intermediate + 470 ℃ ageing FV520B steel strength reached the maximum when = FV520B

FV520B has excellent mechanical performance at low temperature, under high temperature tempering has good tensile properties at low temperature.When the temperature of the cooling liquid nitrogen is still keep the room temperature mechanical properties.This is why?Because FV520B austenitic steel has the inverter performance.Low temperature deformation, austenite into martensite, intensity is greatly raised.Different inverter of austenite, the strength is different also.

Mechanical properties of grade FV 520B

Proof strength Rp0.2 (MPa)	Tensile strength Rm (MPa)	Impact energy KV (J)	Elongation at fracture A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
118 (≥)	417 (≥)	22	33	44	Solution and Aging, Annealing, Ausaging, Q+T,etc	344

Physical properties of grade FV 520B

Property	Density kg/dm3	Temperature T °C/F	Specific heat J / kgK	Thermal conductivity W/mK	Electric resistance µΩ·cm	Modulus of elasticity kN/mm2	Expansion rate
496 (≥)	853 (≥)	22	44	11	Solution and Aging, Annealing, Ausaging, Q+T,etc	224
Temp. °C/°F	Creep strain limit (10000h) (Rp1,0) N/mm2	Creep rupture strength (10000h) (Rp1,0) N/mm2
998	639	562