38 CD 4 (France / AFNOR NF) Material Properties

Material group: Ferrous Alloys / Structural and constructional steels
Country/Standard: France / AFNOR NF

Data updates

Latest Update: 2020-07
Total number of updates: 3
Update History:
2020-03 2019-05

Mechanical Properties

Temperature

≤ 0°C
0 - 30°C
PROPERTY / VALUE
Yield Strength, Rp0.2 val1
Full data access requires a free trial. Sign Up Free
MPa view details
Tensile Strength 600 MPa view details
Elongation, A 9 % view details
Impact Strength val1
Full data access requires a free trial. Sign Up Free
kJ/m² view details
Impact Strength val1
Full data access requires a free trial. Sign Up Free
kJ/m² view details
Brinell Hardness (HB) 183 — 241 view details
Rockwell Hardness (HR) val1
Full data access requires a free trial. Sign Up Free
view details
Yield Strength, Rp0.2 val1
Full data access requires a free trial. Sign Up Free
ksi view details
Tensile Strength 87 ksi view details
Elongation, A 9 % view details
Impact Strength val1
Full data access requires a free trial. Sign Up Free
ft·lb/in² view details
Impact Strength val1
Full data access requires a free trial. Sign Up Free
ft·lb/in² view details
Brinell Hardness (HB) 183 — 241 view details
Rockwell Hardness (HR) val1
Full data access requires a free trial. Sign Up Free
view details

Physical Properties

Temperature

0 - 30°C
PROPERTY / VALUE
Modulus of Elasticity 190 — 210 GPa view details
Density 7.67 — 7.86 kg/dm³ view details
Poisson Coefficient 0.27 — 0.3 view details
Modulus of Elasticity 27.6 E+03 — 30.5 E+03 ksi view details
Density 0.277 — 0.284 lb/in³ view details
Poisson Coefficient 0.27 — 0.3 view details

Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.35 – 0.41
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
0.90 – 1.20
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
0.60 – 0.90
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Mo
VALUE
val1
Full data access requires a free trial. Sign Up Free
UNIT
%
CAS NUMBER
7439-98-7
CRITERIA
P
VALUE
val1
Full data access requires a free trial. Sign Up Free
UNIT
%
CAS NUMBER
7723-14-0
CRITERIA
S
VALUE
val1
Full data access requires a free trial. Sign Up Free
UNIT
%
CAS NUMBER
7704-34-9
CRITERIA
Si
VALUE
val1
Full data access requires a free trial. Sign Up Free
UNIT
%
CAS NUMBER
7440-21-3

NF A 35-556: 1984 / Iron and steel. Heat treatable steels for externally threaded fasteners for structural purposes

Heat Treatments

  • <b> Heated </b> in the range at 835-865°C, cooled in oil and <b>tempered </b> at 550-650°C <br> <b>Jominy test</b> at 850 ± 5°C.
  • Oil quenched: 835 - 865°C; Tempered: 500 - 600°C