Maraging 300
Maraging 300
Maraging 300
Model No: Maraging 300

Maraging 300

Maraging 300 alloy steels material (also referred to as Maraging C300 and Vascomax C300) is a vacuum induction melted and vacuum arc re-melted, low-carbon, nickel-cobalt-molybdenum high-temperature nickel alloy.
Delivery :
FOB
minimum order :
100 kilograms
Supply Ability :
5000Tonkilograms / Month
Stock Time :
7-10Day
Country of Origin :
CHINA
Quantity :
Contact Now
Maraging 300 alloy steels material (also referred to as Maraging C300 and Vascomax C300) is a vacuum induction melted and vacuum arc re-melted, low-carbon, nickel-cobalt-molybdenum high-temperature nickel alloy. Used for tooling, transmission shafts, autosport components and light aircraft landing gear.
 
Maraging 300 has exceptional strength, toughness and is resistant to crack propagation. This material can produce yield strengths in excess of 270 ksi (1862 MPa) through simple, low-temperature heat treatment at 900°F (482°C). Maraging steel 300 also exhibits good ductility at high strength levels, displays excellent notch ductility and outstanding weldability.
 

Cemical composition of maraging 300 (UNS K93120) alloy steel

ElementContent (%)
Iron, Fe67
Nickel, Ni18.5
Cobalt, Co9
Molybdenum, Mo4.8
Titanium, Ti0.6
Aluminum, Al0.1
Silicon, Si0.10
Manganese, Mn0.10
Carbon, C0.030
Zirconium, Zr0.01
Phosphorous, P0.010
Sulfur, S0.010
Boron, B0.0030

Physical properties of maraging 300 (UNS K93120​​​​​​​) alloy steel

PropertiesMetricImperial
Density8.00 g/cm30.289 lb/in³
Melting point1412.8 °C2575°F

Mechanical properties of maraging 300 (UNS K93120​​​​​​​) alloy steel

PropertiesMetricImperial
Tensile strength (@538°C/1000°F)1158 MPa168000 psi
Yield strength (@strain 0.200 %, temperature 538°C/@strain 0.200 %, temperature 1000°F)1056 MPa153200 psi
Bulk modulus (typical for steel)140 GPa20300 ksi
Shear modulus (estimated from elastic modulus)73.0 GPa10600 ksi
Elastic modulus190 GPa27600 ksi
Poisson's ratio0.30.3
Elongation at break (in gage length of 4.5 times the square root of the area, @ 316°C/600 °F)12.00%12.00%
Reduction of area (@427°C/800°F)61.30%61.30%

Thermal properties of maraging 300 (UNS K93120​​​​​​​) alloy steel

PropertiesMetricImperial
Thermal expansion co-efficient (@21-480°C/69.8-896°F)10.1 µm/m°C5.61 µin/in.°F
Thermal conductivity (20°C)25.3 W/mK176 BTU in/hr.ft².°F

Maraging 300 Specifications

  • UNS K93120
  • ASTM A579
  • AMS 6514 - Bar
  • SAE AMS 6514 and AMS 6521 (UNS K93160) - Sheet, Strip, Plate
  • MIL S 46850, MIL S 13881
  • Werkstoff Nr. 1.6358 and 1.6354
  • ASTM A579 Powder
  • Also known as Type 300, Maraging 300, C300
  • Vdimor 300
  • Vascomax C300

Annealing

Maraging 300 alloy steel can be annealed at 1038°C (1900°F) after cold working and then finally cooled in air.

Cold Working

Maraging 300 alloy steel can be cold worked by conventional methods.

Welding

Maraging 300 alloy steel can be welded by conventional methods.

Forging

Maraging 300 alloy steel can be forged as for stainless 304 alloy.

Forming

Conventional methods are used to readily form maraging 300 alloy steel that has good ductility.

Machinability

Maraging 300 alloy steel has good machinability characteristics.

Heat Treatment

Maraging 300 alloy steel cannot be heat treated for hardening except by aging.

Hot Working

Maraging 300 alloy steel can be hot worked in temperatures ranging 260 to 93°C (500 to 200°F). Age hardening takes place when this alloy steel is exposed to these temperatures for a long time.

Hardening

Maraging 300 alloy steel can be hardened by aging and cold working.

Aging

Maraging 300 alloy steel has high hardness and strength properties and is thus suitable for an aging heat treatment at 482°C (900°F).

Maraging 300 Applications

  • Missile & rocket motor cases
  • Munitions
  • Landing gear components
  • Aerospace
  • Extrusion tooling
  • Die casting
  • High performance shafting, gears & fasteners