Custom®465 - 1.4614 - ASTM F899 - ASTM A564 - AMS 5936
Description
Alloy 1.4614 or Custom®465 is a structurally hardened martensitic stainless steel that combines a high hardness of 50 HRC with good corrosion resistance. This grade has a hardening peak at 480°C, which makes it easy to perform aging after machining on a condition initially put in solution (condition A). The grade is vacuum processed and remelted (VIM+VAR) to aerospace quality. A hardened version after quenching is also available in order to reach nearly 54HRC on small diameters.
Stainless has a variety of sizes in stock to best suit your application needs. This product can also be made to measure or cut into pieces by our service centers.
Main applications
Due to its good corrosion resistance, good hardness in the treated state (50HRC) and its resilience, the grade is used in particular in the manufacture of instruments for the medical sector, in the automotive and energy industries and for applications in the aeronautical sector.
Metallurgy
The melting processes combined with the transformation processes result in a homogeneous microstructure. In the processed state, the microstructure consists of martensite and nano-sized intermetallic precipitates which germinate during ageing.
Machinability
Forgeability
The grade can be hot forged in the temperature range 1010/1090°C. Resolving will be necessary to achieve maximum
to achieve maximum age hardness.
Weldability
The grade can be welded (MIG, TIG) on an annealed condition but hardness heterogeneities may occur in the heat affected zone.
affected area. If necessary, a full anneal should be carried out after welding.
Typical heat treatments on an annealed initial condition:
Typical heat treatments on annealed initial condition
| For a target hardness ≥ 50HRC (1700MPa) | For a hardness/resilience compromise with Rm>1650MPa ( > 47HRC ) |
| Ageing H900 (480°C /4h) | Ageing H950 (510°C /4h) |
A volume contraction of up to about 0.07% can be expected during ageing
Corrosion resistance
The grade behaves almost like a type 304 steel and has good corrosion resistance. Passivation is recommended to optimise its corrosion resistance. The microstructure contains little or no chromium carbides, which makes it highly insensitive to intergranular corrosion.
Standard Sizes
- Round bars, annealed condition – Surface cold worked or ground according to the diameters
- Other format: small diameter hardened bars: consult us
Stainless has a wide range of stainless steels from the world's leading producers.
Available formats: Strips, tubes, bars, wires, flat bars, forged blocks, powders
Other formats are available from stock or on order. Contact us.
Austenitic stainless steels
316 – 1.4401
304L- 1.4307
1.4435
A286 – 1.4980
Nitronic®50 – 1.3964
Nitronic®60
Martensitic steels with structural hardening (type PH)
17-7PH – 1.4568
Remelted austenitic stainless steels for prostheses and implants
M30NW® – 1.4472
316LVM – 1.4441
Biodur® 108