SB-688 N08366 Stainless Steels to SB-688

SB-688 N08366 - Specification & Application

  • SB-688 - Chromium-Nickel-Molybdenum-Iron (UNS N08366 and UNS N08367) Plate, Sheet, and Strip

Chromium-Nickel-Molybdenum-Iron (UNS N08366 and UNS N08367) Plate, Sheet, and Strip

Chemical composition(wt.%) of SB-688 N08366 grade: to SB-688

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.035
Mn - 2.00
Si - 1.00
P - 0.03
S - 0.03
Cr 20.00 22.00
Ni 23.50 25.50
Mo 6.00 7.00

SB-688 N08366 - Detail

Chromium-Nickel-Molybdenum-Iron (UNS N08366 and UNS N08367) Plate, Sheet, and Strip

Mechanical properties of grade SB-688 N08366 SB-688

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)
487 (≥) 691 (≥) 14 22 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 144

Physical properties of grade SB-688 N08366 SB-688

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
987 (≥) 312 (≥) 21 42 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 224
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
625 128 828

Equivalent Products

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