C250 is used for missile and ejector systems, slat tracks and drive shafts.
AMS C250, 250, UNS K92890, 1.6359, Alloy 250 Enquiry | Print this page
AMS C250, 250, UNS K92890, 1.6359, Alloy 250 Details
AMS C250, 250, UNS K92890, 1.6359, Alloy 250 Standard Download
C250, 250, UNS K92890, 1.6359, Alloy 250 Datasheet
AMS C250, 250, UNS K92890, 1.6359, Alloy 250| Category | Type | Grade | Microstructure | Designations |
|---|---|---|---|---|
| Grades | Maraging steel | C250, 250, UNS K92890, 1.6359, Alloy 250 | Martensite | USA - AMS , AMS 6512 - BS S162 - |
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | - | 0.03 | ||
| Si | - | 0.10 | ||
| Mn | - | 0.10 | ||
| P | - | 0.010 | ||
| S | - | 0.010 | ||
| Cr | - | 0.50 | ||
| Ni | 17.00 | 19.00 | ||
| Co | 7.00 | 8.50 | ||
| Al | 0.05 | 0.15 | ||
| Mo | 4.60 | 5.20 | ||
| Ti | 0.30 | 0.50 | ||
| Cu | - | 0.50 | ||
| Fe | - | Bal |
| 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) |
|---|---|---|---|---|---|---|
| 683 (≥) | 326 (≥) | 41 | 11 | 32 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 142 |
| 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 |
|---|---|---|---|---|---|---|---|
| 141 (≥) | 215 (≥) | 43 | 14 | 13 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 341 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 213 | 891 | 194 |
| 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 |
| 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. |