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UNS K92890 Details

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K92890 Application:Structural and constructional steels

Category Type Grade Microstructure Designations
Grades Superalloys K92890 Martensite USA - UNS ,

Chemical composition(wt.%) of K92890 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.03
Ni 17.00 19.00
Co 7.00 8.50
Mn - 0.10
Si - 0.10
Al 0.05 0.15
Mo 4.60 5.20
S - 0.010
P - 0.010
Ti 0.30 0.50
Fe - Bal
Cr - 0.50
Cu - 0.50

UNS K92890

AMS 6512 Bar and Forging Stock
Werkstoff Nr. 1.6359
MIL-S-46850
BS S162
DTD 5212
MSRR 6551
MAT 102
MIA 101
Udimar 250
Vascomax C250

Mechanical properties of grade K92890

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)
865 (≥) 229 (≥) 31 42 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 311

Physical properties of grade K92890

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
612 (≥) 766 (≥) 43 31 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 442
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
542 817 157

K92890 - Form of Supply

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
Maraging Steel 250 / C250 AMS USA
Structural and constructional steels
K92890 UNS USA
Structural and constructional steels
1.6359 DIN Germany
Structural and constructional steels
C250, 250, UNS K92890, 1.6359, Alloy 250 AMS USA
C250 is used for missile and ejector systems, slat tracks and drive shafts.

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