Specifications

  • BS3076 NA18
  • 2.4375
  • UNS N05500
  • ASTM B865
View Data Tables For This Product

Alloy K500 (UNS N05500)

Alloy K500 is a precipitation-hardenable nickel-copper alloy which is also known as Monel K500 (Monel® is Special Metals Corporation’s trademark for a family of Nickel-Copper alloys).

Although Langley Alloys supply Alloy K500 in all conditions, we predominantly supply material in the hot worked and precipitation treated condition. Both forms offer the optimum combination of high strength and ductility across the size range. The increased properties are obtained by adding aluminium and titanium to the nickel-copper base, and by heating under controlled conditions so that particles of ‘ϒ’ Ni3 (Ti, Al) are precipitated through the matrix. The thermal processing used to effect precipitation is commonly called age hardening or ageing.

Benefits

This alloy provides excellent corrosion resistance in a range of environments including sea water, hydrofluoric acid, sulphuric acid and alkalis. It has been found to be resistant to a sour-gas environment and is listed within NACE MR1075. The combination of very low corrosion rates in high-velocity sea water and high strength make it well-suited for marine shafts in stagnant or slow-moving sea water, fouling may occur followed by pitting but this pitting slows down after a fairly rapid initial attack.

Alloy K500 is refined by Electro Slag Refining (ESR), ensuring the cleanest and highest quality of material is supplied. This increased alloy purity limits the likelihood of hard non-metallic inclusion that can increase machining difficulty, processing times and ultimately part failures. It also has low permeability and is nonmagnetic to temperatures as low as -101°C (-150°F).

Alloy K500 Alloys From Langley Alloys

At Langley Alloys, we carry a wide range of Alloy K500 and other nickel-based alloys in different sizes to suit your applications. For more information, please download the product datasheet below. If you are looking for a quote, you also can request a quote by clicking below. For other enquiries on our Alloy K500 alloys, please contact us today and our team will be happy to help.

alloy k-500

Specifications

  • BS3076 NA18
  • 2.4375
  • UNS N05500
  • ASTM B865
View Data Tables For This Product

Data Tables

Chemical Composition:

CrNiMoCoNb (+Ta)TiVWCuCMnNSiPSFeAl
Min63.000.3527.002.30
Max0.8533.000.251.500.500.0102.003.15

Mechanical Properties:

Cold Worked & Precipitation TreatedCold Worked, Solution Treated & Precipitation TreatedHot Worked & Precipitation TreatedHot Worked, Solution Treated & Precipitation Treated
Bars up to and including 25mm section size or diameterBars between 25-55mm section size or diameterBars up to and including 25mm section size or diameterBars between 25-55mm section size or diameterBars up to and including 110mm section size or diameterBars between 110-300mm section size or diameterBars up to and including 25mm section size or diameterBars between 25-110mm section size or diameterBars between 110-300mm section size or diameter
0.2% Proof Stress760 (110)690 (100)620 (89.9)550 (79.8)724 (105)724 (105)500 (72.5)585 (84.8)500 (72.5)
N/mm2 (ksi)
Tensile Strength, N/mm2 (ksi)1000 (145)970 (140.6)900 (130.5)830 (120)965 (140)965 (140)830 (120.3)900 (130.5)830 (120.3)
Elongation, 5.65√S0 and 4D14%16%20%20%20%20%15%20%15%
Hardness (Rockwell C)27-3527-3527-3527-3527-3527-3527-3527-3527-35
Impact Strength (-29oC or lower)27J av (20J min)27J av (20J min)27J av (20J min)27J av (20J min)27J av (20J min)27J av (20J min)27J av (20J min)27J av (20J min)27J av (20J min)

Notes:

  1. Testing shall be carried out in accordance with ASTM A370 or EN ISO 6892-1 (tensile), EN ISO 6506-1 (hardness)
  2. Minimum properties quoted (tested at room temperature in a longitudinal direction)
  3. Testing performed on each melt of material per heat treatment batch

Physical Properties:

Density (Kg/m3)8430
Magnetic Permeability (20°C)<1.005 (1.002 typical)
Young’s Modulus (kN/mm2)179
Specific Electrical Resistance, 20°C (µΩ-m)0.62
Mean coefficient of thermal expansion, 20-100°C (m/m/degC)13.4 x 10-6
Specific Heat, 20°C (J/kg.K)418
Thermal conductivity, 20°C (W/m.K)17.5
Curie Temperature (°C)-90

Product Features

Key Features:

  • High strength and hardness from sub-zero to elevated temperatures
  • Excellent corrosion resistance in a wide range of environments
  • Resistant to chloride stress corrosion
  • Good resistance to impingement attack
  • High fatigue strength in seawater
  • Low magnetic permeability to very low temperatures

Applications:

  • Process industry applications such as doctor blades & scrapers involving organic acids, caustic soda, dry chlorine, chlorinated plastics
  • Marine industry and shipbuilding applications such as propellers, shafts, fasteners, gyroscopes, springs
  • Oil & Gas industry pump shafts, valve stems, drill collars, instrumentation
  • Sensors and electronic components
  • Heat exchanger components
Datasheet NA Alloy K 500

Worldwide Delivery Available

We can offer air, sea and road freight shipping options, with choice of packaging, to deliver to customers globally.

Inventory Management

Let us manage your total material requirements with call-off and consignment arrangements.

Up to 40 sizes per alloy available

More sizes equal less machining and a more cost-effective supply chain.

For enquiries and product information, please call us on +281 819 5588 or email [email protected] to request a quote

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