Alloy Steels Maraging 300 is stocked by 12 North American distributors and produced by 8 large mills. Distributors will offer small quantity buys while mills will generally only sell large quantities, with delivery times anywhere from 10 to 50 weeks depending on size and form required
This material is stocked primarily in Bar Products by 9 distributors but is also available to a lesser extent in Flat Rolled Products, Wire Products, and Forging Products.
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For mill (large volume) production click here
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Specifications
The following specifications cover Alloy Steels Maraging 300
Property Results
Related Metals:
- VascoMax 300(tm)
- NiMark Alloy 300(tm)
Chemistry Data : [top]
Aluminum
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Boron
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Carbon
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0.03 max |
Cobalt
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Iron
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Balance |
Manganese
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0.1 max |
Molybdenum
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Nickel
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Phosphorus
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0.01 max |
Silicon
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0.1 max |
Sulphur
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0.01 max |
Titanium
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Zirconium
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Principal Design Features
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Maraging 300 alloy is a very high strength iron base, nickel , molybdenum, cobalt alloy. It may be age hardened to a strength level of 300 ksi ultimate with a hardness on the order of Rockwell C 53.
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Applications
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Used for very high strength structural applications such as aircraft land gear components.
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Machinability
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Machinability is good, similar to that for 304 stainless steel.
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Forming
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Maraging 300 steel has good ductility and is readily formed by conventional methods.
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Welding
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The alloy is weldable by conventional methods, much the same as for 304 stainless steel.
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Heat Treatment
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Maraging steel is not heat treatable for hardening except by aging. See "Aging".
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Forging
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The alloy may be forged as for stainless 304 alloy.
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Hot Working
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Hot working of maraging steel may be done at temperatures in the 500 to 200 F range. Prolonged exposure at these temperatures may result in some age hardening. However a full aging treatment should be given.
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Cold Working
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The alloy is readily cold worked by conventional methods.
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Annealing
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Annealing, if required after cold working, can be done at 1900 F followed by rapid air cooling.
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Aging
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The high strength and hardness properties are a result of an aging heat treatment at 900 F
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Tempering
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Not applicable to this alloy.
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Hardening
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Maraging 300 hardens by cold working and by aging - see "Aging".
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Physical Data : [top]
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Density (lb / cu. in.)
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0.289
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Specific Gravity
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8
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Specific Heat (Btu/lb/Deg F - [32-212 Deg F])
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0.108
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Melting Point (Deg F)
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2575
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Thermal Conductivity
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136
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Mean Coeff Thermal Expansion
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5.6
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Modulus of Elasticity Tension
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27.5
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Mechanical Data : [top]
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MSO currently has no data available for this grade.
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Videos :
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MSO currently has no videos available for this grade.
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Disclaimer
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This publication may include technical inaccuracies or typographical errors. Changes may be periodically made to the information herein.
