MP35N Chemical Composition
| % | C | P | Si | Ni | Co | Mn | S | Cr | Mo | Ti | Fe |
| Min | – | – | – | 33 | bal | – | – | 19 | 9 | – | – |
| Max | 0.025 | 0.015 | 0.15 | 37 | bal | 0.15 | 0.01 | 21 | 10.5 | 1 | 1 |
MP35N Physical Properties
| Density | Melting Point | Coefficient of Expansion | Modulus of Rigidity | Modulus of Elasticity |
| 8.43 g/cm³ | 1440 °C | 12.8 µm/m °C (20 – 100 °C) | 80.7 kN/mm² | 234 kN/mm² |
| 0.304 lb/in³ | 2625 °F | 7.1 x 10-6 in/in °F (70 – 212 °F) | 11705 ksi | 33939 ksi |
MP35N Mechanical Properties (Minimum value at 20°C)
| Property | Tensile Rm | Yield Strength at 0.2% Offset | Elongation in 4D | R.p. 0.2% Yield |
| Value | 260ksi (1793 MPa) | 230 ksi (1586 MPa) | 8% | 35% |
Features:
Exceptional High Strength: MP35N alloy achieves ultra-high tensile strength, ranging from 260 to 300 ksi (1793-2086 MPa), through work hardening and aging processes.
Superior Corrosion Resistance: The alloy exhibits outstanding resistance to corrosion in environments containing hydrogen sulfide, seawater, and mineral acids, making it suitable for harsh corrosive conditions.
High Fatigue Resistance: MP35N possesses high fatigue strength, making it ideal for applications subjected to cyclic loading over extended periods.
Non-Magnetic: This alloy is non-magnetic, performing excellently in applications where magnetic interference must be avoided.
Applications:
Oil and Gas Industry: MP35N alloy is commonly used in the manufacturing of downhole tools, springs, and fasteners, maintaining high strength and corrosion resistance in sour environments containing hydrogen sulfide.
Medical Devices: Due to its high strength, corrosion resistance, and biocompatibility, MP35N is utilized in medical devices such as surgical implants and orthodontic appliances.
Aerospace Sector: The alloy is employed in aerospace components requiring high strength and corrosion resistance, such as fasteners and springs.
Marine Engineering: MP35N exhibits excellent corrosion resistance in marine environments, making it suitable for marine engineering applications.