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SEW 1.3817 Details

1.3817 Application:Non magnetizable steels. Technical delivery conditions

Category Type Grade Designations
Grades Stainless Steels 1.3817 Germany - SEW , SEW 390 - Non magnetizable steels. Technical delivery conditions

Chemical composition(wt.%) of 1.3817 grade: SEW 390

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.40 0.55
Si - 0.80
Mn 17.00 19.00
P - 0.100
S - 0.030
Cr 3.00 5.00
Non magnetizable steels. Technical delivery conditions, X40MnCr18

Mechanical properties of grade 1.3817 SEW 390

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)
397 (≥) 114 (≥) 42 12 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 243

Physical properties of grade 1.3817 SEW 390

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
662 (≥) 261 (≥) 44 14 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 124
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
857 414 919

1.3817 - 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
X40MnCr18 SEW Germany
Non magnetizable steels. Technical delivery conditions
1.3817 SEW Germany
Non magnetizable steels. Technical delivery conditions

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