F 880 Class A1-70 18-9LW Stainless Steels to F 880M (2002)

F 880 Class A1-70 18-9LW - Specification & Application

  • F 880M (2002) - Standard Specification for Stainless Steel Socket Set Screws (Metric)

Standard Specification for Stainless Steel Socket Set Screws (Metric)

Chemical composition(wt.%) of F 880 Class A1-70 18-9LW grade: to F 880M (2002)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.10
Si - 0.65
Mn - -
P - -
S - -
Ni 8.00 10.00
Cr 17.00 19.00
Al - -
Cu 3.00 4.00
Ti - -
Fe - -
V - -
Mo - -

F 880 Class A1-70 18-9LW - Detail

Standard Specification for Stainless Steel Socket Set Screws (Metric)

Mechanical properties of grade F 880 Class A1-70 18-9LW F 880M (2002)

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)
915 (≥) 339 (≥) 33 21 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 122

Physical properties of grade F 880 Class A1-70 18-9LW F 880M (2002)

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
261 (≥) 523 (≥) 24 22 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 331
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
343 634 956

Equivalent Products

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