MP35N®
MP35N® - CarTech® MP35N - UNS R30035 - NiCoCrMo Alloy
Home > All Alloys > MP35N®
| Table of Contents | |
|---|---|
| Datasheet | Chemistry |
| Inventory | Applications |
| General Data | Mechanical Properties |
| Specifications | Machining, Welding, & Processing |
| References | |
MP35N® is a remarkable alloy composed of Nickel, Cobalt, Chromium, and Molybdenum, boasting extraordinary tensile strength and outstanding resistance to corrosion. Additionally, this alloy demonstrates commendable ductility and toughness, coupled with exceptional protection against sulfidation, high-temperature oxidation, and hydrogen embrittlement.
Datasheet
View or download Carpenter Technology's CarTech® MP35N datasheet here
Chemistry*
| Min. | Max. | |
|---|---|---|
| Ni | 33 | 37 |
| Cr | 19 | 21 |
| Mo | 9.00 | 10.50 |
| Co | Balance | |
| Ti | 1.00 | |
| Fe | 1.00 | |
| C | 0.02 | |
| P | 0.015 | |
| Si | 0.15 | |
| B | 0.010 Nominal | |
| Mn | 0.15 | |
| S | 0.010 |
Typical Inventory
Applications
- Fasteners (PCC Fasteners' Brochure pg. 6-7)
- Medical Devices
- Springs
- Torsion Bars
- Oil & Gas
- Chemical Processing
- Food Processing
- Electrical Components
General Data
MP35N's remarkable strength is mostly due to the mechanical working, which can be accomplished through rolling, extruding, drawing, or swaging. This alloy also exhibits exceptional corrosion resistance to stress corrosion cracking at elevated mechanical properties.
- Extreme strength and corrosion resistance
- Highly resistant to pitting and crevice corrosion
- Impenetrable in seawater
- Excellent for exposure in sour environments
Mechanical Properties
The typical properties listed can usually be provided in rounds, sheet, strip, plate, & custom forgings. We have the equipment to produce small quantities in special sizes to meet our customers’ specific needs.
| Typical Tensile Properties at Room Temperature for Aged 1050°F 4 Hours, Air Cooled | ||||
|---|---|---|---|---|
| Condition | Ultimate Tensile Ksi (MPa) | Yield Strength Ksi (MPa) | Elong. % in 2 in. | Reduction of Area % |
| 0.750"Ø Cold Drawn 33% to 0.611"Ø | 227 (1565) | 217 (1496) | 14.2 | 60 |
| 1.240"Ø Cold Drawn 53% to 0.850"Ø | 294 (2027) | 285 (1965) | 10.0 | 46 |
| 0% Cold Reduction + Aged 1000°F 4 Hrs Air Cooled | 135 (931) | 60 (414) | 68 | 77 |
We can cold work high strength into your material to meet your high-performing requirements. We also facilitate in-house size conversions, rotary forging and drawing, and annealing materials, as well as our cold finish machining capabilities range of +/- 0.0002" Ø.
For more information, you can contact us at 1-800-945-8230, and request our GFM Bulletin; you can also view our brochure online! There's also more information about our offered services on our production capabilities page.
We have expanded our abilities to work smaller diameter bar down to nominal wire. Also, check out our weld wire to finish the job right!
Common Specifications
Note that the specifications listed are common for this alloy but are for reference only and may be specific to a certain form. The specifications listed are not comprehensive nor indicative of any edition, revision, or similar such as an amendment. Please, reach out to our sales department to request the Material Test Report (MTR) or to confirm your required specifications.
| Form | Standard |
|---|---|
| Identification | UNS R30035 |
| Bar | AMS 5758 (Solution heat treated 1900-1925°F for 4 to 8 hours) AMS 5844 (Solution heat treated 1900-1925°F for 4 to 8 hours and Work Strengthened) AMS 5845 (Solution heat treated 1900-1925°F for 4 to 8 hours, Work Strengthened & Aged 1000-1200°F for 4 hours) |
| Medical | ASTM F562, BS 7252-6, ISO 8532-6 |
| Others | NACE MR-0175/ISO 15156 |
Machining
Nickel and cobalt based alloys can be difficult to machinine. However, it should be emphasized that these alloys can be machined using conventional production methods at satisfactory rates. These alloys harden rapidly, generate high heat during cutting, weld to the cutting tool surface and offer high resistance to metal removal because of their high shear strengths. The following are key points which should be considered during machining operations:
- MP35N is difficult to machine in any of the elevated mechanical properties.
- MP35N is generally easier to machine than Waspaloy®, a similar NiCoCr alloy with similar machining setups.
Welding
- MP35N can be TIG welded similar to Type 304 stainless.
- Passes should be adjusted ensuring low heat input per pass.
- The highest joint efficiency comes from welding the annealed condition.
- If using a filler metal, then use the same composition.
Data referring to mechanical properties and chemical analyses are the result of tests performed on specimens obtained from specific locations of the products in accordance with prescribed sampling procedures; any warranty thereof is limited to the values obtained at such locations and by such procedures. There is no warranty with respect to values of the materials at other locations.
References
Carpenter Technology's datasheet on CarTech® MP35NMP35N® is a registered trademark of SPS Technologies, Inc. CarTech® is a registered trademark of CRS Holdings Inc. Waspaloy® is a registered trademark of United Technologies Corp.