METAL INJECTION MOLDING MATERIALS
WHICH MATERIAL IS RIGHT FOR YOU?
The Metal Injection Molding process starts with the selection or creation of a feedstock. ARC possesses an in depth knowledge of metallurgy and can guide you in making the best choice for your application.
ARC excels at producing custom mixed feedstocks of stainless-steel, cobalt and nickel-based alloys (among others) to produce metal parts with maximum strength and versatility. Our batch atmosphere furnaces deliver the most consistent stainless steel and low-carbon ferrous alloys in the industry.
Below is a small sampling of the broad spectrum of alloys we use at ARC. If you don’t see the alloy you want or you’d like to discuss a specialty alloy for your individual application.
Mechanical Properties
| TYPE | ALLOY | DENSITY (G/CM³) | UTS 10³ PSI | YIELD STRENGTH (0.2%) 10³ PSI | ELONGATION (IN 1 INCH) | HARDNESS MACRO (APPARENT) ROCKWELL | |
|---|---|---|---|---|---|---|---|
| Stainless | Austenitic | 304 | 7.58 | 74 | 29 | 40 | 92 HRB |
| Stainless | Austenitic | 316L (MIM 316L) | 7.60 | 75 | 25 | 50 | 67 HRB |
| Stainless | Ferritic | 430 | 7.75 | 60 | 35 | 25 | 65 HRB |
| Stainless | Martensitic | 420 | 7.40 | 200 | 174 | <1.0 | 67 HRB |
| Stainless | Martensitic | 440C | 7.65 | 286 | 276 | 14 | 97 HRB |
| Stainless | Precipitation Hardened | 17-4PH (MIM 17-4) | 7.50 | 130 | 106 | 6 | 27 HRC |
| Stainless | Duplex | 316L Duplex | 7.60 | 84 | 38 | 40 | 77 HRB |
| Soft Magnetic | ASTM A801 Type 1 | 49FeCo2V | 7.71 | 195 | 185 | 1 | 36 HRC |
| Soft Magnetic | ASTM A801 Type 2 | Fe27Co | 7.55 | 80 | 41 | 12 | 80 HR 15T |
| Soft Magnetic | ASTM A753 Type 2 | 49NiFe | 7.83 | 73 | 12 | 38 | 80 HR 15T |
| Soft Magnetic | ASTM A753 Type 4 | 80NiFeMo | 8.39 | 84 | 32 | 40 | 81 HR 15T |
| Soft Magnetic | MIM 430L | 430L | 7.55 | 60 | 35 | 25 | 65 HRB |
| Controlled Thermal Expansion (CTE) | ASTM F15 (Kovar) | FeNiCo | 7.80 | 75 | 51 | 42 | 60 HRB |
| Controlled Thermal Expansion (CTE) | ASTM F1684 (Invar) | Alloy 36 (36NiFe) | 8.00 | 62 | 35 | 40 | 65 HRB |
| Controlled Thermal Expansion (CTE) | ASTM F30 | Alloy 42 (42NiFe) | 7.79 | 71 | 36 | 42 | 70 HRB |
| Low Alloy Steel | MIM 2200 | 2% NiFe | 7.65 | 42 | 18 | 40 | 45 HRB |
| Low Alloy Steel | MIM 2700 | 7% NiFe | 7.60 | 60 | 37 | 26 | 69 HRB |
| Low Alloy Steel | MIM 4605 | 2%Ni 0.35Mo 0.5C | 7.5 | 64 | 30 | 15 | 62 HRB |
| Low Alloy Steel | Carbon Steel | 4140 | 7.85 | 84 | 57 | 15 | 18 HRB |
| Low Alloy Steel | Tool Steel | S7 | 7.40 | 268 | 212 | 2 | 50 HRC |
| Implantable Alloys | ASTM F75 | CoCr | 8.09 | 95 | 65 | 8 | 35 HRC |
| Non Ferrous | Cooper | Cu | 8.66 | – | – | – | – |
| Non Ferrous | Bronze | Cu Sn | 8.18 | – | – | – | – |
Chemical Composition (%)
| TYPE | ALLOY | C | NI | CR | MO | MN | SI | CO | FE | CU | OTHER | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Stainless | Austenitic | 304 | 0.03 Max | 12-13 | 17-18 | – | 0.3 Max | 1.0 Max | – | Balance | – | – |
| Stainless | Austenitic | 316L (MIM 316L) | 0.03 Max | 8 | 20 | 2 Max | – | – | – | Balance | – | – |
| Stainless | Martensitic | 420 | 0.15-0.40 | 3-5 | 15.5-17.5 | – | 1.0 Max | 1.0 Max | – | Balance | – | – |
| Stainless | Martensitic | 420 | 0.15-0.40 | 3-5 | 15.5-17.5 | – | 1.0 Max | 1.0 Max | – | Balance | – | – |
| Stainless | Martensitic | 440C | 0.95-1.20 | – | 16-18 | 0.75 | 1.0 Max | 1.0 Max | – | Balance | – | – |
| Stainless | Precipitation Hardened | 17-4PH (MIM 17-4PH) | 0.07 Max | 3-5 | 15.5-17.5 | – | 1.0 Max | 1.0 Max | – | Balance | 3.0-5.0 | – |
| Stainless | Duplex | 316L Duplex | 0.03 Max | 10-14 | 16-18 | 2-3 | 2.0 Max | 1.0 Max | – | Balance | – | – |
| Soft Magnetic | ASTM A801 Type 1 | 49FeCo2V | 0.025 Max | 0.25 Max | 0.15 Max | – | 0.15 Max | 0.15 Max | 47.5-49.5 | Balance | – | V 1.5-2.1 |
| Soft Magnetic | ASTM A801 Type 2 | Fe27Co | 0.025 Max | 0.25 Max | 0.75 Max | – | 0.35 Max | 0.35 Max | 26.5-28.5 | Balance | – | V 0.35 |
| Soft Magnetic | ASTM A753 Type 1 | 49NiFe | 0.05 Max | 47-49 | 0.3 Max | 0.3 | 0.8 Max | 0.5 Max | 0.5 | Balance | 0.3 Max | – |
| Soft Magnetic | ASTM A753 Type 4 | 80NiFeMo | 0.05 Max | 79-82 | 0.3 Max | 3.5-6.0 | 0.8 Max | 0.5 Max | 0.5 | Balance | 0.3 Max | – |
| Soft Magnetic | MIM 430L | 430L | 0.05 Max | – | 16-18 | – | 1.0 Max | 1.0 Max | – | Balance | – | – |
| Controlled Thermal Expansion (CTE) | ASTM F15 (Kovar) | FeNiCo | 0.04 Max | 29 | 0.2 | 0.2 | 0.5 Max | 0.2 Max | – | Balance | 0.2 Max | – |
| Controlled Thermal Expansion (CTE) | ASTM F1684 (Invar) | Alloy 36 (36NiFe) | 0.05 Max | 36 | 0.25 Max | – | 0.5 Max | 0.2 Max | – | Balance | 0.2 Max | – |
| Controlled Thermal Expansion (CTE) | ASTM F30 (Invar) | Alloy 42 (42NiFe) | 0.005 Max | 42 | 0.25 Max | – | 0.8 Max | 0.03 Max | 1.0 Max | Balance | – | – |
| Low Alloy Steel | MIM 2200 | 2% NiFe | 0.01 Max | 1.5-2.5 | – | 0.5 | – | 1.0 Max | – | Balance | – | – |
| Low Alloy Steel | MIM 2700 | 7% NiFe | 0.01 Max | 6.5-8.5 | – | 0.5 | – | 1.0 Max | – | Balance | – | – |
| Low Alloy Steel | MIM 4605 | 2%Ni 0.35Mo 0.5C | 0.4-0.6 | 1.5-2.5 | – | 0.2-0.5 | – | 1.0 Max | – | Balance | – | – |
| Low Alloy Steel | Carbon Steel | 4140 | 0.041 Max | – | 1.01 | 0.23 | 0.67 | – | – | Balance | – | – |
| Low Alloy Steel | Tool Steel | S7 | 0.45-0.70 | 0.3 Max | 2.5-3.5 | 1.0-1.8 | 0.2-0.9 | 0.2-1.0 | – | Balance | – | V 0.35 |
| Implantable Alloys | ASTM F75 | CoCr | – | – | 27 | 5 | – | – | Balance | – | – | – |
| Non Ferrous | Copper | Cu | – | – | – | – | – | – | – | – | 100 | – |
| Non Ferrous | Bronze | CuSn | – | – | – | – | – | – | – | – | 90 | Sn 9-10 |
| Non Ferrous | Titanium Ti-6Al-4V | Ti 6-4 | 0.08 Max | – | – | – | – | – | – | 0.4 Max | – | Al 5.5-6.5, V 3.5-4.5 |
| Superalloys | Precipitation Hardened | A-286 | 0.08 Max | 24-27 | 13.5-16 | 1.0-1.5 | 2.0 Max | 1.0 Max | – | Balance | – | Ti 1.90-2.35 |
| Superalloys | Precipitation Hardened | Alloy 718 | 0.08 Max | 50-55 | 17-21 | 2.8-3.3 | 0.35 Max | 0.35 Max | – | Balance | – | Nb 4.7-5.5 |
| Superalloys | Precipitation Hardened | Alloy 713LC | 0.05-0.10 Max | Balance | 11.5-12.5 | 4.0-5.0 | – | 0.2 Max | – | 0.5 Max | – | Al 5.5-6.5 |
| Superalloys | Precipitation Hardened | Alloy 90 | 0.13 Max | Balance | 18-21 | 1.0 Max | 1.0 Max | 0.2 Max | 15-21 | 1.5 Max | – | Ti 2.0-3.0, Al 1.0-2.0 |
| Superalloys | Solution Solid | L-605 | 0.05-0.15 | 9-11 | 19-21 | – | 1.0-2.0 | 0.4 Max | Balance | 3.0 Max | – | W 14-16 |
| Superalloys | Solution Solid | Alloy 188 | 0.05-0.15 | 20-24 | 20-24 | – | 1.25 Max | 0.2-0.5 | Balance | 3.0 Max | – | W 13-16 |
| Superalloys | Solution Solid | MAR-M-509 | 0.55-0.65 | 9-11 | 23.00-24.25 | – | 0.1 Max | 0.3 Max | Balance | 2.0 Max | 0.1 | W 6.5-7.5, Ta 3.0-4.0 |
