1.3817 Stainless Steels to SEW 390

1.3817 - Specification & Application

  • SEW 390 - Non magnetizable steels. Technical delivery conditions

Non magnetizable steels. Technical delivery conditions

Chemical composition(wt.%) of 1.3817 grade: to 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

1.3817 - Detail

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)
299 (≥) 644 (≥) 34 42 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 233

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
626 (≥) 377 (≥) 13 42 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 134
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
342 372 231

Equivalent Grade

We can customize the production of 1.3817 grade, contact us for the best solution.
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