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Maraging Steel

We are a leading Manufacturer of maraging steel 300 vascomax c300 uns k93120 round rod from Mumbai, India.

Maraging Steel 300 Vascomax C300 UNS K93120 Round Rod

Maraging Steel 300 Vascomax C300 UNS K93120 Round Rod
  • Maraging Steel 300 Vascomax C300 UNS K93120 Round Rod
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Approx. Price: Rs 3,850 / KgGet Latest Price
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Product Details:

Minimum Order Quantity50 Kg
Single Piece Length6 meter
TechniqueHot Rolled
Thickness/Diameter500 mm
Maraging Steel300
Surface TreatmentHeat Treatment
MaterialNickel Alloy
Melt MethodVIM + VAR
Country of OriginMade in India

Maraging 300 alloy steels material (also referred to as Vascomax C300) is a vacuum induction melted and vacuum arc re-melted, low-carbon, nickel-cobalt-molybdenum high-temperature nickel alloy. 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.

At FountainHead Alloys, we are industry-leading Maraging Alloy Steel 300 manufacturers. As one of the biggest Maraging 300 steel round bar suppliers, we can provide you with the Vascomax® 300 product that best suits your project needs.
Contact us for more information regarding Maraging 300 Alloy Steels material and our Vascomax C300 product options. Call us at+91-9967983388 and we will be happy to assist you with any questions on Maraging 300 steel.

  • Typical applications for maraging include missile and rocket motor cases, landing and takeoff gear, munitions, aerospace, extrusion tooling, die casting, high performance shafting, gears and fasteners.

  • C : 0.03 max
  • Mn : 0.10 max
  • Si : 0.10 max
  • P : 0.10 max
  • S : 0.10 max
  • NI : 18.00-19.00
  • Co : 8.50-9.50
  • Mo : 4.60-5.20
  • Ti : 0.50 -0.80
  • Al : 0.05-0.15
  • Cr : 0.50 max
  • Cu :  0.50 max

Material Melt Method : 
Maraging melt method is a VIM (Vacuum Induction Melt) + VAR (Vacuum Arc Remelt)

As Shipped Condition :
 Maraging is supplied in the annealed and descaled condition. The alloy is very tough, relatively soft (36 Rc Max.), therefore, readily machined and formed.

Physical Properties:

The following table shows the physical properties of maraging 300 alloy steel.

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

Minimum Properties after Aging:
  • Hardness …… 52 Rc
  • Charpy V-notch … 12 ft/lbs. min
  • Reduction of Area ……. 47%
  • Elongation ……. 5.0%
  • Yield Strength …. 280 ksi
  • Fracture Toughness ….. 60

Heat Treatment Aging Process: 
 (Non Die Casting Applications) Material is to be heat treated to 900 F +/- 10 holding at temperature for 6 hours then cooling at room air temperature. During the aging treatment maraging shrinks uniformly and predictably on all dimensions .001 in/in

Heat Treatment Aging Process:
 (Die Casting Applications) Following the rough machining of the die, anneal at 1500-1525 F for 1 hour per inch of thickness is recommended. After finish machining , an aging heat treatment of 980-1000 F for 6 hours is recommended.


Maraging steel in the annealed condition is comparable to 4340. However, when maraging is aged, the type of cutting tool and speeds change. Rigid equipment, firm tool supports, sharp tools and abundant coolant are essential.


Maraging is weld able without preheat, in both the annealed and aged condition. Only an aging heat treatment is needed to restore in the weld.

  • AMS 6514
  • ASTM A 538
  • UNS K93120
  • ASTM A579
  • SAE AMS 6514 and AMS 6521 (UNS K93160) – Sheet, Strip, Plate
  • MIL S 46850, MIL S 13881
  • Werkstoff Nr. 1.6358 and 1.6354
  • Vascomax C300
  • Vdimor 300

Additional Information:

  • Item Code: UNSK93120
  • Production Capacity: 1000 Tonnes
  • Delivery Time: 12 Days
  • Packaging Details: Export worthy
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Anil Gupta (Sales Manager)
Fountainhead Alloys
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