Maraging 300
(UNS K93120) Maraging 300 steel has excellent toughness and ductility. Maraging 300 has good fabrication characteristics and a low rate of work hardening. Maraging 300 has good machinability and weldability. Maraging 300 has an ultimate tensile strength of approximately 300,000 psi.
Chemistry
| Element |
C |
Mn |
P |
S |
Si |
Ni |
Mo |
Co |
Al |
Ti |
| Maraging 300 |
0.03% max |
0.10% max |
0.01% max |
0.01% max |
0.10% max |
18.5% |
4.80% |
9.00% |
0.10% |
0.60% |
Physical Constants
| Density | 0.289 lb/in3 |
| Density | 8.0 g/cm 3 |
Heating
| Forging | 1700ºF-1900ºF |
| Solution Anneal | 1500ºF then air cool |
| Age Harden | 900ºF 3-6 hours then air cool |
Viking Forging Parameters
| Rings | 24" O.D. X 8" long | 500 lbs. |
| Sleeves | 24" O.D. max. | 500 lbs. |
| Disks | 24" Dia. X 4" long | 500 lbs. |
| Round Bar | 9.5" Dia. X 96" long | 2000 lbs. |
| Square/Rectangular Bar | 9.5" Sqaure max. X 96" long | 2000 lbs. |
| Blocks | 11.5" X 11.5" X 11.5" | 500 lbs. |
| Shafts | 9.5" Dia. max X 96" long | 2000 lbs. |
