Grades | Tool Die Steels | 1.2550

DIN 1.2550

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1.2550 Application:Tool Steels; Technical Conditions of Delivery

Chemical composition(mass fraction)(wt.%) of the 1.2550
Elements Min.(≥) Max.(≤) Similar Remarks
C 0.55 0.65
Si 0.50 0.70
Mn 0.15 0.45
P - 0.030
S - 0.030
Cr 0.90 1.20
Mo - -
V 0.10 0.20
W 1.80 2.10

Mechanical properties of grade 1.2550

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition HBW
296 (≥) 337 (≥) 42 14 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 313

Physical properties of grade 1.2550

Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
875 (≥) 841 (≥) 34 13 12 Solution and Aging, Annealing, Ausaging, Q+T,etc
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
- - -
379 542 118 - - -

1.2550 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