C78D Structural Steel to EN 10016-2 (1994)

C78D - Specification & Application

  • EN 10016-2 (1994) - Non-alloy steel rod for drawing and/or cold rolling - Part 2: Specific requirements for general purposes rod
  • EN ISO 16120-2 (2011) - Non-alloy steel wire rod for conversion to wire - Part 2: Specific requirements for general-purpose wire rod

Non-alloy steel wire rod for conversion to wire - Part 2: Specific requirements for general-purpose wire rod

Chemical composition(wt.%) of C78D grade: to EN 10016-2 (1994)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.75 0.80
Si 0.10 0.30
Mn 0.50 0.80
P - 0.035
S - 0.035
Cr - 0.15
Ni - 0.20
Cu - 0.25

C78D - Detail

Non-alloy steel wire rod for conversion to wire - Part 2: Specific requirements for general-purpose wire rod

Mechanical properties of grade C78D EN 10016-2 (1994)

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)
767 (≥) 138 (≥) 34 31 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 122

Physical properties of grade C78D EN 10016-2 (1994)

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
923 (≥) 481 (≥) 21 14 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 311
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
121 614 276

Equivalent Grade

Equivalent Products

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