F 899 Type XM-7 Stainless Steels to F 899 (2012)

F 899 Type XM-7 - Specification & Application

  • F 899 (2012) - Standard Specification for Wrought Stainless Steels for Surgical Instruments

Standard Specification for Wrought Stainless Steels for Surgical Instruments

Chemical composition(wt.%) of F 899 Type XM-7 grade: to F 899 (2012)

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.08
Si - 1.00
Mn - 2.00
P - 0.045
S - 0.03
Cr 17.0 19.0
Ni 8.00 10.0
Cu 3.00 4.00

F 899 Type XM-7 - Detail

Standard Specification for Wrought Stainless Steels for Surgical Instruments

Mechanical properties of grade F 899 Type XM-7 F 899 (2012)

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)
754 (≥) 442 (≥) 13 42 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 212

Physical properties of grade F 899 Type XM-7 F 899 (2012)

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
921 (≥) 682 (≥) 22 21 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 344
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
129 896 569

Equivalent Products

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