High strength, high toughness, high abrasion resistance, high corrosion resistance, welding performance is very good
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | - | 0.07 | ||
| Si | - | 0.70 | ||
| Mn | - | 1.00 | ||
| P | - | 0.035 | ||
| S | - | 0.025 | ||
| Cr | 13.0 | 15.0 | ||
| Ni | 5.00 | 6.50 | ||
| Mo | 1.20 | 2.00 | ||
| Cu | 1.20 | 2.00 | ||
| Nb | 0.20 | 0.70 |
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.
| 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) |
|---|---|---|---|---|---|---|
| 862 (≥) | 422 (≥) | 43 | 21 | 33 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 132 |
| 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 |
|---|---|---|---|---|---|---|---|
| 239 (≥) | 635 (≥) | 32 | 12 | 34 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 231 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 322 | 598 | 415 |
We can customize the production of FV 520B grade, contact us for the best solution.
–sales@specificsteel.com