High Ti, welding, excellent processing, excellent stress corrosion cracking.
440F Chemical Composition | |||||||
Chemical Composition | C | Si | Mn | P | S | Cr | Ti |
Standard | ≤0.03 | ≤1.00 | ≤1.00 | ≤0.040 | ≤0.030 | 17.00~19.00 | 0.2+(C+N)~1.0 |
General | 0.008 | 0.18 | 0.2 | 0.020 | 0.001 | 17.50 | 0.3 |
Distinction | Mechanical Performance | |||
Ys(Mpa) | Ts(Mpa) | El(%) | Hv | |
Standard | ≥240 | ≥450 | ≥22 | - |
General | 290 | 430 | 32 | 150 |
Physical Performance | ||||
Density(g/cm3) | Magnetism | Specific Heat | Heat Conductivity | The Coefficient of Thermal Expansion |
7.7 | Yes | 460 | 26.4 | 10.5 |
440F Stainless Steel Characteristics:
This alloy is a free machining, high carbon, heat treatable metal combining elevated hardness and moderate corrosion resistance.
440F Stainless Hot Working:
Similar in characteristics to high speed tool steel. Heat to 1400-1500 F(760-816 C), then on to 1900-2100 F(1038-1149 C) slowly. Finish at 1700 F(927 C), furnace cool and anneal fully after reaching room temperature for maximum properties.
440F Stainless Cold Working:
Not generally used in forming operations, this alloy can withstand moderate deformation in the fully annealed condition.
440F Stainless Steel Application:
Commonly employed in applications requiring high hardness values, non-galling and non-seizing properties in a free machining steel. Due to its inherent porosity, it should not be considered for applications involving gas or liquid under pressure.
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