S40300 Stainless Steels

S40300 - Specification & Application

Martensitic Stainless Steel (Hardenable by Heat Treatment)

Chemical composition(wt.%) of S40300 grade:

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.15
Mn - 1.00
Si - 0.50
P - 0.04
S - 0.03
Cr 11.50 13.00
Ni - -
Mo - -

S40300 - Detail

Martensitic Stainless Steel (Hardenable by Heat Treatment)

Mechanical properties of grade S40300

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)
729 (≥) 688 (≥) 31 24 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 443

Physical properties of grade S40300

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
327 (≥) 888 (≥) 43 11 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
752 351 248
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