16 NC 6 (France / AFNOR NF) Material Properties

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

Data updates

Latest Update: 2020-10
Total number of updates: 2
Update History:
2020-06

Mechanical Properties

Temperature

0 - 30°C
PROPERTY / VALUE
Yield Strength, Rp0.2 val1
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MPa view details
Tensile Strength 530 MPa view details
Elongation, A 9 % view details
Impact Strength val1
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kJ/m² view details
Impact Energy val1
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J view details
Brinell Hardness (HB) 156 — 207 view details
Rockwell Hardness (HR) val1
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view details
Yield Strength, Rp0.2 val1
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ksi view details
Tensile Strength 76.9 ksi view details
Elongation, A 9 % view details
Impact Strength val1
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ft·lb/in² view details
Impact Energy val1
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ft·lb view details
Brinell Hardness (HB) 156 — 207 view details
Rockwell Hardness (HR) val1
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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
0.12 – 0.17
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
Ni
VALUE
val1
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UNIT
%
CAS NUMBER
7440-02-0
CRITERIA
P
VALUE
val1
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UNIT
%
CAS NUMBER
7723-14-0
CRITERIA
S
VALUE
val1
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UNIT
%
CAS NUMBER
7704-34-9
CRITERIA
Si
VALUE
val1
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UNIT
%
CAS NUMBER
7440-21-3

NF A 35-551: 1986 / Case hardening steels - Technical delivery conditions

Heat Treatments

  • <b>Cementation process</b> at 875 to 925°C <br> <b>Hardening (core)</b> at 830 to 860°C, oil quenching <br> <b>Hardening (surface)</b> at 780 to 810°C, oil quenching <br> <b>Tempering</b> at 150 to 200°C.<br> <b>Tempering for Jominy test </b> at 880 ± 5°C
  • Carburized: 875-925°C; Harden core: oil quenching: 830-860°C; Harden case: oil quenching: 780-810°C; temper: 150-200°C.