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DIN 1.4926 Details

1.4926 Application:Steels for larger forgings for components in turbine and generator installations

Category Type Grade Microstructure Designations
Grades Stainless Steels 1.4926 Martensite Germany - DIN , SEW 555 - Steels for larger forgings for components in turbine and generator installations

Chemical composition(wt.%) of 1.4926 grade: SEW 555

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.20 0.26
Si - 0.50
Mn 0.30 0.80
P - 0.025
S - 0.020
Cr 11.00 12.50
Mo 0.80 1.20
Ni 0.30 0.80
V 0.25 0.35
Steels for larger forgings for components in turbine and generator installations of 1.4926

Mechanical properties of grade 1.4926 SEW 555

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)
248 (≥) 661 (≥) 21 31 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 124

Physical properties of grade 1.4926 SEW 555

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
533 (≥) 739 (≥) 43 34 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 434
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
211 515 282

1.4926 - 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
1.4926 DIN Germany
Steels for larger forgings for components in turbine and generator installations
X21CrMoV12-1 DIN Germany
Steels for larger forgings for components in turbine and generator installations

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