Alloy Wire International
Datasheet: Monel® K-500
Monel® K-500
This Nickel-Copper alloy is precipitation hardenable, due to the additions of Aluminium and Titanium. It combines the corrosion resistance of Monel 400 but gives the added advantage of extra strength and hardness (as a result of its age hardening ability). Monel® K-500 provides corrosion resistance in several marine and chemical applications.
Monel® K-500 is also known as Nicorros Al.
Available in all profile options
Key Features
Monel® K-500 offers the following key features:
Corrosion resistance similar to Monel 400 but with higher strength and hardness.
Low permeability and is non-magnetic to temperatures as low as -101°C (-150°F).
Age hardenable.
Good for sea water applications.
Typical Applications
Monel® K-500 is known to be suitable for the following applications:
Pump Shafts
Fasteners
Marine Propeller Shafts
Oil Well Tools
Instruments
Springs
Designations
W.Nr 2.4375
UNS N05500
AWS 041
Specifications
ASTM B865
BS 3075 NA 18
BS 3076 NA 18
ISO 15156-3
(NACE MR 0175)
QQ-N-286
Chemical Composition
The chemical composition of Monel® K-500 is indicated in the table below:
| Element | Min % | Max % |
|---|---|---|
| Ni | 63.00 | 70.00 |
| Co | – | 2.00 |
| Cu | 27.00 | 33.00 |
| Fe | – | 2.00 |
| Al | 2.30 | 3.20 |
| C | – | 0.25 |
| Si | – | 1.00 |
| Mn | – | 1.50 |
| Ti | 0.35 | 0.85 |
| S | – | 0.01 |
Alloy Details
Monel® K-500 density, melting point, coefficient of expansion, modulus of rigidity, and elasticity is indicated in the table below:
| Density | Melting Point | Coefficient of Expansion | Modulus of Rigidity | Modulus of Elasticity |
|---|---|---|---|---|
| 8.44 g/cm³ | 1350 °C | Coefficient of Expansion 13.7 μm/m °C (20 – 100 °C) | 66 kN/mm² | 179 kN/mm² |
| 0.305 lb/in³ | 2460 °F | 7.6 x 10-6 in/in °F (70 – 212 °F) | 9573 ksi | 25962 ksi |
Heat treatment of finished parts
The typical heat treatment of Monel® K-500:
| Condition as supplied by AWI | Type | Temperature | Time | Cooling |
|---|---|---|---|---|
| Annealed | Age Harden Δ | 580 – 590 °C (1075 – 1095 °F) | 8 – 10 Hr | Air |
| Spring Temper | Age Harden Δ | 530 – 540 °C (985 – 1005 °F) | 4 – 6 Hr | Air |
Δ Heat treating Monel K-500 in free air can have a detrimental effect on its corrosion resistant properties.
Properties
The typical mechanical properties of Monel® K-500:
| Annealed | ||
|---|---|---|
| Approx. tensile strength | <850 N/mm² | <123 ksi |
| Approx. operating temperature | -100 to +260 °C | -150 to +500 °F |
| Annealed + Aged | ||
|---|---|---|
| Approx. tensile strength | >950 N/mm² | >138 ksi |
| Approx. operating temperature | -100 to +260 °C | -150 to +500 °F |
| Spring Temper | ||
|---|---|---|
| Approx. tensile strength | 1000 – 1300 N/mm² | 145 – 189 ksi |
| Approx. operating temperature | -100 to +260 °C | -150 to +500 °F |
| Spring Temper + Aged | ||
|---|---|---|
| Approx. tensile strength | 1200 – 1500 N/mm² | 174 – 218 ksi |
| Approx. operating temperature | -100 to +260 °C | -150 to +500 °F |
The above tensile strength ranges are typical. If you require different please ask.
*Trade name of Special Metals Group of Companies
