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          • 800-HPALLOY
          • 1985 E 500 N Windfall, IN 46076
            444 Wilson St Tipton, IN 46072
            Post Office Box 40 Tipton, IN 46072
            tel:8004725569

          NITRONIC® 60 (Alloy 218) (UNS S21800)

          Request a quote

          NITRONIC 60 Datasheet

          Cr 17, Mn 8, Ni 8.5, Si 4, N 0.13, C 0.10, Fe Bal.

          High Performance Alloys stocks and produces this grade in the following forms: Bar, flat bar, square bar, wire spool. wire cuts, loose coil, sheet, plate, strip, coil, tube, pipe, fastener, disk, machined, billet, ingot. Request quote on this grade.

           

          1. Download Brochure 4 MB PDF - Or view as HTML
          2. Download Bulletin 57 KB PDF
          3. View Nitronic Machining Brochure
          4. Download FDA statement concerning the use of stainless steels as food contact surfaces of equipment. 154 KB PDF

           

          Overview

          Austenitic Stainless

          Nitronic 60 is truly an all purpose metal. This fully austenitic alloy was originally designed as a temperature alloy, and subsequently has good high temperature properties for temperatures around 1800ºF. The oxidation resistance of Nitronic 60 is similar to Type 309 S.S., and far superior to Type 304S.S. This grade is best known for its wear and galling resistance.

          The additions of Silicon and Manganese have given this alloy a matrix to inhibit wear, galling, and fretting even in the annealed condition. Higher strengths are attainable through cold working the material and is still fully austenitic after severe cold-working. This working does not enhance the anti-galling properties as is normal for carbon steels and some stainless steels. The benefit to the cold or hot work put into the material is added strength and hardness, and the wear resistance does not decrease noticeably. Chromium and Nickel additions give it comparable corrosion to 304 and 316 stainless steels, while having approximately twice the yield strength. The high mechanical strength in annealed parts permits use of reduced cross sections for weight, and cost reductions through the use of thinner stock.

          Several data sheets are available on the wear compatibility of this alloy with dissimilar couples, as well as self-mated coupled results. Download PDF - Or view as HTML or call for your own booklet!

          If your galling problem occurs at less than 1500ºF, then you should think about switching to this alloy. Nitronic 60 has a better cost advantage than any other alloy available. Other materials require an additional amount of heat treating to raise their hardness, where NITRONIC 60 is excellent in the annealed condition. See more information on NITRONIC 60 HS (High Strength) properties on the NITRONIC 60HS page.

           

          Characteristics

          Corrosion Properties
          The corrosion resistance of Armco NITRONIC 60 Stainless Steel falls between that of types 304 and 316. However, experience shows that in a wear system, a galling or siezure failure occurs first, followed by dimensional loss due to wear, and finally corrosion. Galling and wear must be the first concerns of the design engineer. Although the general corrosion resistance of NITRONIC 60 is not quite as good as Type 316, it does offer better chloride pitting resistance, stress corrosion cracking resistance and crevice corrosion resistance than Type 316 in laboratory conditions. Corrosion tests are not normally performed with NITRONIC 60 High Strength.

          Corrosion Resistance
          Nitronic 60’s uniform corrosion resistance is better than 304 stainless in most environments. The yield strength of Nitronic 60 is nearly twice that of 304 and 316 stainless steels. Chloride pitting resistance is superior to that of type 316 stainless; Nitronic 60 provides excellent high temperature oxidation resistance and low temperature impact.
          Applications using Nitronic 60 are valve stems, seats, and trim, fastening systems, screening, pins, bushings and roller bearings, pump shafts and rings. Other uses include wear plates, rails guides, and bridge pins.

          Wear Resistance
          This alloy provides a significant lower cost way to fight wear and galling compared to Nickel or Cobalt based alloys.

          This wear data republished from Armco brochure. NITRONIC is a trademark of AK Steel.

           

          Chemistry

          Chemical Requirements

          Ni

          Cr

          Mn

          Si

          N

          Mo

          C

          Max

          9.00

          18.00

          9.00

          4.5

          0.18

          0.75

          0.10

          Min

          8.00

          16.00

          7.00

          3.5

          0.08

           

           

          Tensile Data

          Ultimate Tensile

          Yield Strength (0.2% OS)

          Elong. in 4D

          R/A

          Hardness

          Min

          105 KSi

          55 KSi

          35%

          55%

          Max

          Min

          724 MPa

          379 MPa

          Max

           

          Ultimate Tensile

          Yield Strength (0.2% OS)

          Elong.

          R/A

          Hardness

          Min

          95 KSi

          50 KSi

          35%

          55%

          Max

          Min

          655 MPa

          345 MPa

          Max

           

          There are other high strength properties available for sizes of bar, wire, sheet and plate. Inquire with a sales associate at High Performance Alloys for more information. See bulletin, or brochure on the material (above) for a quick overview.

           

          Specifications

          Form

          Standard

          Bar

          ASTM A193 ASTM A194 ASTM A276 ASTM A479 F899 AMS 5848

          Wire

          Sheet

          ASTM A240 F899

          Plate

          ASTM A240 F899

          Fitting

           

          Forging

          ASTM A182
          ASTM A193 ASTM A 194 ASTM A276 ASTM A479 F899 AMS 5848

          Weld Wire

          A5.9 ER218

          Werkstof No

           

           

          Applications

          • Automotive valves - can withstand gas temperatures of upto 1500°F for a minimum of 50,000 miles.
          • Fastener galling - capable of frequent assembly and disassembly, allowing more use of the fastener before the threads are torn up, also helps to eliminate corroded or frozen fasteners.
          • Pins - Used in roller prosthetics & chains to ensure a better fit of parts (closer tolerance, non-lubricated) and longer lasting.
          • Marine shafts - better corrosion than types 304 and 316, with double the yield strength.
          • Pin and hanger expansion joints for bridges - better corrosion, galling-resistance, low temperature toughness, & high charpy values at sub-zero temps compared to the A36 and A588 carbon steels commonly used.

           

          Carburization Resistance

           

          Machining

          MACHINING DATA
          Carbide tools are suggested
          for rates better than 50% of Type 304.
          Machining Type Suggested starting rates are:
          Single Point turning : Roughing - 0.15" depth, 0.015"/rev feed -175 SFM
          Finishing - 0.025" depth, 0.007"/rev feed - 200 SFM
          Drilling : 1/4" Dia hole - 0.004"/rev feed - 60 SFM
          1/2" Dia hole - 0.007"/rev feed - 60 SFM
          3/4" Dia hole - 0.010"/rev feed - 60 SFM
          Reaming : Feed - same as drilling - 100 SFM
          Side and Slot Milling : Roughing - 0.25" depth - 0.007"/tooth feed - 125SFM
          Finishing - 0.050" depth - 0.009"/tooth feed - 140SFM
          These rates are for carbide tools,
          Type C-2 for roughing, drilling and reaming.
          Type C-3 for finishing.

           

          Material in this bulletin has been reprinted from Armco Bulletin No S-45, other Armco sources, and HPAlloys data.

          NITRONIC ® is a registered trademark of AK Steel.



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