A 791 Grade 29-4C Stainless Steels to A 791/A 791M

A 791 Grade 29-4C - Specification & Application

  • A 791/A 791M - Aluminum-Zinc Alloy-Coated Wire Strand

Aluminum-Zinc Alloy-Coated Wire Strand

Chemical composition(wt.%) of A 791 Grade 29-4C grade: to A 791/A 791M

Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.03
Si - 1.00
Mn - 1.00
P - 0.04
S - -
Ni - 1.00
Cr 28.00 30.00
Al - -
Cu - 0.15
Ti - -
Fe - -
N - 0.045
Mo 3.60 4.20

A 791 Grade 29-4C - Detail

Aluminum-Zinc Alloy-Coated Wire Strand

Mechanical properties of grade A 791 Grade 29-4C A 791/A 791M

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)
672 (≥) 691 (≥) 32 44 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 114

Physical properties of grade A 791 Grade 29-4C A 791/A 791M

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
468 (≥) 225 (≥) 23 14 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 431
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
555 238 239

Equivalent Products

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