Based on 1" Dia Annealed (RB 95) 5 hour form tool life using high-speed tools. Carbide tools are suggested, for rates better than 50% of Type 304. These rates are for carbide tools, Type C-2 for roughing, drilling and reaming. Type C-3 for finishing.
Topics: NITRONIC 50, NITRONIC 60, NTRONIC 30, NITRONIC 40, Machining Nitronic
Topics: elevated strength materials, enhanced mechanical properties, HASTELLOY C-22, HASTELLOY C-276, INCONEL 622, INCONEL 686, INCONEL 718, L605, NITRONIC 50, NITRONIC 60, superalloy grain refinement
Topics: NITRONIC 60, bridge hinge pin, bridge pin, gall tough plus pin, pin and hanger bridge system
Topics: F-35, NITRONIC 60, nitronic 60 wear applications
Topics: NASA, NITRONIC 60, impact resistance in space, ISS
For nearly two decades, NASA has been acquiring information from rovers sent to explore the surface of Mars. High Performance Alloys played an integral role in the first Mars rover mission, Pathfinder and its successors, the twin rovers Spirit and Opportunity’s assembly.
Topics: MarsRover, NASA, NITRONIC 60, JPL
Passivation of materials is needed from time to time due to potential contamination of processes, aesthetic appearance or function within a system. It is used to remove surface contaminants from forming, machining, shot peening and heat treating. This surface preparation generally does not change the tolerances, and should not etch or pit the surface.
For aerospace applications using NITRONC 60, AMS 2700 Method 1 or 2 can be employed to clean the surfaces. Usually just a small amount of nitric will clean it up nicely in Method 1, such as a Type 1 or 6. We have found the citric acid in Method 2 to be ineffective to sufficiently brighten the appearance, though it may be employed as a process.
Typically, materials being removed are due to a free iron concern. Free iron from tool steels, racks for storage and rollers can leave trace amounts during transfer. The free iron then will oxidize and give the appearance that the stainless is rusting, even when it is only the surface.
Topics: NITRONIC 60, cleaning nitronic 60, NITRONIC 60 passivation, passivation
NITRONIC 60 in H2S has had three annealed heats (Rb95/98) tested for the NACE MR-01-75 standard, and it passed. Unfortunately, the committee wanted to see results up to Rc22 for annealed material (a larger barrage of testing) and it was never completed.
Topics: NITRONIC 60, H2S, ISO 15156, NACE MR0175
A stainless is defined as 12% minimum Chromium, which can encompass many stainless grades. There are sub categories of this Austenitic type stainless though. Depending on the composition, some materials are more Austenitic than others; primarily due to their Nickel (Ni), Manganese (Mn), Carbon (C) and Nitrogen (N) contents. To consider this further, you need to understand the corollary to Austenite; Ferrite and Martensite are what many people are looking for when they require magnetism, or magnetic permeability. When you mix Austenite and Ferrite it is a Duplex (contains both, nearly equal amounts). A low Ferrite number generally indicates a lower magnetic permeability. Stainless that is high in Ni, Mn, C, or N or a combination thereof can be an indicator that it will have a lower Ferrite content. Some stainless steels with generous amount of these attain a negative ferrite calculation, using Schaefflers diagram you can predict these on a graph or us a Ferrite Number (FN) formula to arrive at the estimate.
Topics: NITRONIC 50, NITRONIC 60
Topics: F-35, High Performance Alloys, NITRONIC 60