Corrosion Resistant Nitronic Alloys , Nitronic 60 Steel Strip For Petrochemical Industries

1.Description:

N itronic 60 is truly an all purpose metal. This fully austenitic alloy performs well as a high temperature alloy for temperatures around 1800ºF. The oxidation resistance of Nitronic 60 is similar to Type 309 S.S., and far superior to Type 304S.S. The additions of silicon and manganese have given the 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. The chromium and nickel additions give it comparable corrosion to 304 and 316 stainless steels, while having a twice the yield strengths of regular stainless steels. The high mechanical strength in annealed parts permits use of reduced cross sections for weight and cost reductions. Several data sheets are available on the wear compatiblity of this alloy with dissimilar couples, as well as self-mated coupled results.

2.Specifications Listed:

UNS S21800 Bar ASTM A276 ASTM A479 AMS 5848 LMA M7060 Plate/Sheet ASTM A240 Pipe & Tube SPECIALS Billet ASTM A314 Fasteners A193 / A194 Welding Wire AWS A5.9 ER218 The typical properties listed on page one can be provided in rounds, wire, ribbon, strip & flat bar upon request. We have some high strength rounds & strip in stock, but will be glad to make a particular form, size or strength to meet our customers’ exacting needs. See our GFM Edition Bulletin for further details on lead times & size capacities for high strength bar or long length requirements.

3.Industry Applications:

Automotive valves - can withstand gas temperatures of up to 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, nonlubricated) 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.