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AMS C300,300,K93120,1.6358,1.6354 Details

Maraging C300,300,K93120,1.6358,1.6354 is an age hardenable (maraging) iron nickel stainless steel. Maraging 300 has exceptional strength, toughness and is resistant to crack propagation.

AMS C300,300,K93120,1.6358,1.6354 Standard Download

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C300,300,K93120,1.6358,1.6354 Application:Maraging 300 is used for tooling, transmission shafts, autosport components and light aircraft landing
Category Type Grade Microstructure Designations
Grades Maraging steel C300,300,K93120,1.6358,1.6354 Martensite USA - AMS , ASTM A579 -
AMS 6514 -
SAE AMS 6514 -
AMS 6521 -
MIL S 46850 -
MIL S 13881 -
Chemical composition(mass fraction)(wt.%)
Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.03
Si - 0.10
Mn - 0.10
P - 0.010
S - 0.010
Co 8.00 9.00
Ni 18.00 19.00
Mo 4.60 5.20
Ti 0.55 0.80
Al 0.05 0.15
Fe - Bal
Mechanical properties of grade C300,300,K93120,1.6358,1.6354
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)
159 (≥) 246 (≥) 21 34 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 423
Physical properties of grade C300,300,K93120,1.6358,1.6354
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
912 (≥) 599 (≥) 21 23 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 131
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
416 118 127
C300,300,K93120,1.6358,1.6354 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
C300,300,K93120,1.6358,1.6354 AMS USA
Maraging 300 is used for tooling, transmission shafts, autosport components and light aircraft landing