I. Introduction:
Some people think that MP35N is an excellent material for making springs.
MP35N is a kind of Ni-Cr-Co-Mo multiphase alloy, which has no magnetism and unique ultra-tensile strength, up to 300 KSI(2068 MPa). It also has good ductility, toughness and excellent corrosion resistance. In addition, the alloy also shows extraordinary resistance to vulcanization, high temperature oxidation and hydrogen embrittlement.
The unique properties of MP35N are obtained through work hardening, phase transformation and aging treatment. If the alloy is used under sufficient work hardening conditions, the working temperature is-200 ~ 315 C, and the recommended maximum temperature is 750 F (399 C).
MP35N density: 8.43g/cm3
Second, performance.
MP35N has good resistance to vulcanization, high temperature oxidation, hydrogen embrittlement, salt spray and most inorganic acids. The alloy has excellent stress corrosion cracking resistance and high strength in harsh environment. The alloy also has extremely high local corrosion resistance, such as pitting corrosion and crevice corrosion.
The alloy shows excellent stress corrosion cracking resistance in high strength and harsh environment, while cracks will appear in most traditional alloys in the same harsh environment. At the same time, MP35N has excellent pitting corrosion resistance and crack corrosion resistance.
In seawater environment, MP35N can undergo general crack corrosion and stress corrosion regardless of its strength grade and material state.
MP35N is an inert metal. If it is connected with more active metals, such as carbon steel, 3 16 stainless steel, Monel K series metals, etc., it is easy to produce electrochemical corrosion.
MP35N alloy meets the relevant standards of NACE MR-0 1-75, and its high hardness is Rockwell hardness C35 (the high hardness can reach Rockwell hardness C48 through special cold rolling and aging treatment). (NACE MR-0 1-75 is the sulfide stress cracking tolerance standard for metal materials used in oilfield equipment)
Third, use.
MP35N is widely used in many working conditions because of its rare excellent performance. The alloy is used for fasteners, springs, nonmagnetic electronic components and instrument parts in the fields of medicine, seawater, oil and gas fields, chemistry and food processing.
Fourth, similar brands.
UNS R300035，
Verb (abbreviation of verb) chemical composition (%)
Ni = 33.00 ~ 37.00，Cr = 19.00 ~ 2 1.00，Mo = 9.00 ~ 10.50，Ti ≤ 1.00，Fe ≤ 1.00，Si ≤ 0。
Technical standards related to intransitive verbs
Standard Specification for Wrought 35 Cobalt -35 Nickel -20 Chromium-10 Molybdenum Alloy for Surgical Implantation (UNS R300 35) ASTM F562- 13 Technical Specification for Co35-Ni-35-Cr20-Mo 10 Deformed Alloy for Surgical Implantation.
AMS 5758 - MP35N？ Vacuum arc remelting rod.
Solution heat treatment at1900-1925 f for 4-8 hours, and solution heat treatment at1900-1925 f for 4-8 hours.
AMS 5844 - MP35N？ Vacuum arc remelting rod.
Solution heat treatment at1900-1925 f for 4 to 8 hours, and solution heat treatment at1900-1925 f for 4 to 8 hours.
AMS 5845 - MP35N？ Vacuum arc remelting rod.
Solution heat treatment at the temperature of1900-1925 f for 4-8 hours to strengthen processing. Aging at1000-1200 f for 4 hours1900-1925 f for 4-8 hours, and processing at1000-1200 f.
NACE MR0 175
Astm f-562- surgical implantation application ASTM f-562 is used for surgical implantation.
Application of Bs 7252-6 surgical implantation.
Iso 5832-6 surgical implantation should be applied.
Seven, can provide product form and specifications.
Wire rod: φ 0.03mm ~ φ 12mm Delivery status: delivered in cold and hard state, with tensile strength ≥1400mpa; ;
Round steel: hot rolled or solution delivered.
Cold rolled strip and plate (medical application)
Cold-drawn products can be imported from the United States, and the delivery time is 2~3 months.
Eight. date of delivery
The minimum order quantity is 50kg, and the delivery time is 35 days.
*MP35N is a registered trademark of SPS Technology Company.