Alloy Wire International
Datasheet: MP35N
MP35N
MP35N is an age hardenable Nickel-Cobalt base alloy that has a unique combination of properties – ultra high strength, toughness, ductility and outstanding corrosion resistance. MP35N resists corrosion in hydrogen sulphide, salt water and other chloride solutions. It also has excellent resistance to crevice and stress corrosion cracking in sea water and other hostile environments.
The four alloy elements in MP35N are the basis for corrosion resistance in almost every Stainless Steel, Nickel and Cobalt-based alloy commonly used in the industry. The alloy resists corrosion in hydrogen sulphide, salt water and other Chloride solutions, as well as the mineral acids (Nitric, Hydrochloric and Sulphuric).
MP35N is suitable where a high combination of strength, high modulus values and good corrosion resistance are required.
Applications for this alloy also include medical devices and dental products.
Available in all profile options
Key Features
MP35N offers the following key features:
Combination of high strength, ductility and good mechanical properties at ambient temperatures.
Excellent corrosion resistance in hydrogen sulphide.
Excellent resistance to crevice and stress corrosion cracking in sea water.
Age hardenable (Spring Temper only).
Typical Applications
MP35N is known to be suitable for the following applications:
Designations
W. Nr. 2.4999
UNS R30035
AWS 110
Specifications
AMS 5844
AMS 5845
ASTM F562
ISO 15156-3
(NACE MR 0175)
ISO 5832-6
Chemical Composition
The chemical composition of MP35N is indicated in the table below:
| Element | Min % | Max % |
|---|---|---|
| C | – | 0.025 |
| P | – | 0.015 |
| Si | – | 0.15 |
| Ni | 33.00 | 37.00 |
| Co | bal | |
| Mn | – | 0.15 |
| S | – | 0.01 |
| Cr | 19.00 | 21.00 |
| Mo | 9.00 | 10.50 |
| Ti | – | 1.00 |
| Fe | – | 1.00 |
Alloy Details
MP35N density, melting point, coefficient of expansion, and modulus of elasticity is indicated in the table below:
| Density | Melting Point | Coefficient of Expansion | Modulus of Rigidity | Modulus of Elasticity |
|---|---|---|---|---|
| 8.43 g/cm³ | 1440 °C | 12.8 μm/m °C (20 – 100 °C) | 80.7 kN/mm² | 234 kN/mm² |
| 0.304 lb/in³ | 2625 °F | 7.1 x 10-6 in/in °F (70 – 212 °F) | 11705 ksi | 33939 ksi |
Heat treatment of finished parts
The typical heat treatment of MP35N:
| Condition as supplied by AWI | Type | Temperature | Time | Cooling |
|---|---|---|---|---|
| Annealed | – | – | – | – |
| Spring Temper | Age Harden | 650 °C (1200 °F) | 4 Hr | Air |
Properties
The typical heat treatment of MP35N:
| Annealed | ||
|---|---|---|
| Approx. tensile strength | < 1100 N/mm² | < 160 ksi |
| Approx. operating temperature | -200 to +315 °C | -330 to +600 °F |
| Spring Temper | ||
|---|---|---|
| Approx. tensile strength | 1400 – 1900 N/mm² | 203 – 276 ksi |
| Approx. operating temperature | -200 to +315 °C | -330 to +600 °F |
| Spring Temper + Aged | ||
|---|---|---|
| Approx. tensile strength | 1900 – 2200 N/mm² | 276 – 319 ksi |
| Approx. operating temperature | -200 to +315 °C | -330 to +600 °F |
The above tensile strength ranges are typical. If you require different please ask.
*Trade name of SPS Technologies
