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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)
477 (≥) 583 (≥) 12 44 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 344
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
654 (≥) 229 (≥) 31 31 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 334
Temp.
°C/°F		 Creep strain limit
(10000h)
(Rp1,0) N/mm2		 Creep rupture strength
(10000h)
(Rp1,0) N/mm2
482 173 849
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