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Whole C350, 350 Details

Maraging C350 350 is a nickel maraging steel which contains Cobalt as the primary strengthening agent. Maraging 350 has excellent mechanical properties, workability and heat treatment characteristics. Maraging C350 350 is used for missile and rocket motor cases, landing and takeoff gear components, high performance shafting, gears and fasteners.

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C350, 350 Application:Maraging 350 is used for missile and rocket motor cases, landing and takeoff gear components, high performance shafting, gears and fasteners.
Category Type Grade Microstructure Designations
Grades Maraging steel C350, 350 Martensite - , MIL-S-46850 -
AMS 6515 -
Chemical composition(mass fraction)(wt.%)
Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.03
Si - 0.10
Mn - 0.10
P - 0.01
S - 0.01
Ni - 18.50
Co - 12.0
Al - 0.10
Mo - 4.8
Ti - 1.40
Zr - 0.01
Mechanical properties of grade C350, 350
Proof strength
Rp0.2 (MPa)
Tensile strength
Rm (MPa)
Impact energy
KV (J)
Elongation at fracture
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
437 (≥) 567 (≥) 32 11 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 332
Physical properties of grade C350, 350
Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
Modulus of elasticity
kN/mm2
Expansion rate
993 (≥) 973 (≥) 24 41 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 114
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
354 594 112
C350, 350 Range of products
Product type Products Dimension Processes Deliver Status
Plates / Sheets Plates / Sheets 0.08-200mm(T)*W*L Forging, hot rolling and cold rolling Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar Round Bar, Flat Bar, Square Bar Φ8-1200mm*L Forging, hot rolling and cold rolling, Cast Black, Rough Turning, Shot Blasting,
Coil / Strip Steel Coil /Steel Strip 0.03-16.0x1200mm Cold-Rolled & Hot-Rolled Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes Seamless Pipes/Tubes, Welded Pipes/Tubes OD:6-219mm x WT:0.5-20.0mm Hot extrusion, Cold Drawn, Welded Annealed, Solution and Aging, Q+T, ACID-WASHED
Cross Reference Table(Equivalent Grade)
Grade Standard Country Application
C350, 350 Whole Whole
Maraging 350 is used for missile and rocket motor cases, landing and takeoff gear components, high performance shafting, gears and fasteners.