Nickel Alloy K 500/ Monel K 500

Technical Data Sheet


Chemical Composition Limits
Weight% Ni+Co C Mn Fe S Si Cu Al Ti
K 500 63 min 0.25 max 1.5 max 2 max 0.01 max 0.5 max 27 - 33 2.3 - 3.15 0.35 - 0.85

Alloy K-500 is a precipitation hardened nickel-copper alloy which has excellent corrosion resistance together with increased strength and hardness of that of Alloy 400. Alloy K-500 is commonly used in the marine, chemical, medical and paper production industries for items such as pump shafts, oil-well tools, doctors blades and scrapers, springs, marine propeller shafts

Typical Mechanical Properties

Material Form and Condition Tensile Strength MPa Yield Strength (0.2% Offset) MPa Elongation (%) Hardness Rockwell B
Alloy K 500 Rod and Bar Cold Drawn Annealed 621-758 276-414 50-25 75-90B
Alloy K-500 Rod and Bar Cold- Drawn Annealed and Aged 896-1310 586-827 30-20 24-35C

Alloy K-500 (UNS N05500) is available in Bar (Rounds, Flat), Round Bar, Flat Bar, Sheet, Strip, Plate, Rod, Wire, Forgings, Pipe and Tube. For all stock availability contact Sales.


Sheet BS3072 NA18, QQ-N-286, DIN 17750, ISO 6208
Plate BS3072 NA18, QQ-N-286, DIN 17750, ISO 6208
Strip BS3072 NA18, QQ-N-286, DIN 17750, ISO 6208
Bar AMS 4676, BS3076 NA18, ASTM B 865, DIN 17752, QQ-N-286, ISO 9723
Rod AMS 4676, ISO 6208, ASTM B 865, DIN 17752, QQ-N-286
Wire BS3076, NA18, DIN 17753, QQ-N-286, ISO 9724
Forging DIN 17754, QQ-N-286, ISO 9725
Other UNS N05500, BS6076 NA13, Trade name Monel® Alloy K-500, Werkstoff Nr. 2.4375, MIL-N-24549, NACE MR-01-75

At Aircraft Materials we specialise in the rapid turn-around of orders, with most stock items ready for shipping out the same day to anywhere in the world. For time-critical orders, such as AOGs use our AOG service desk (, the team are dedicated to processing and dispatching orders on the same day, even for cutting orders on bar and sheet products.

Our expertise in global logistics enables us to source material from anywhere in the world in a matter of days and provide fast shipping solutions to all our customers, whichever country they are in. We use a range of transport partners to ship overnight within the UK and Europe, and offer a full range of logistics solutions from priority express services to more cost-effective economy shipments all around the globe. To find out more about our services click here.

Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.