1018 (United States / AISI) Material Properties

Material group: Ferrous Alloys / Structural and constructional steels
Country/Standard: United States / AISI

Data updates

Latest Update: 2022-08
Total number of updates: 11
Update History:
2020-03 2019-06 2019-01 2018-09 2018-02 2017-05 2016-06 2016-04 2016-01 2014-08

Mechanical Properties

Temperature

0 - 30°C
30 - 100°C
100 - 300°C
PROPERTY / VALUE
Yield Strength, Rp0.2 val1
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MPa view details
Yield Strength, Rp0.2 val1
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MPa view details
Yield Strength, Rp0.2 val1
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MPa view details
Tensile Strength 380 — 690 MPa view details
Tensile Strength val1
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MPa view details
Tensile Strength val1
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Elongation, A 13 % view details
Reduction of Area val1
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% view details
Brinell Hardness (HB) ≤ 241 view details
Rockwell Hardness (HR) val1
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view details
Yield Strength, Rp0.2 val1
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ksi view details
Yield Strength, Rp0.2 val1
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ksi view details
Yield Strength, Rp0.2 val1
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ksi view details
Tensile Strength 55.1 — 100.1 ksi view details
Tensile Strength val1
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ksi view details
Tensile Strength val1
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ksi view details
Elongation, A 13 % view details
Reduction of Area val1
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% view details
Brinell Hardness (HB) ≤ 241 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
B
VALUE
Killed carbon steel may be produced with a boron range of 0.0005 to 0.003% to improve hardenability (in that case, grade will be identified by inserting the letter “B” between the second and third numerals of the grade number)
UNIT
%
CAS NUMBER
7440-42-8
CRITERIA
C
VALUE
0.15 – 0.20
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Mn
VALUE
0.60 – 0.90
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
P
VALUE
val1
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UNIT
%
CAS NUMBER
7723-14-0
CRITERIA
Pb
VALUE
val1
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UNIT
%
CAS NUMBER
7439-92-1
CRITERIA
S
VALUE
val1
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UNIT
%
CAS NUMBER
7704-34-9

SAE J403: 2014 / Chemical Compositions of SAE Carbon Steels

Heat Treatments

  • Carbonitrided: 900-925°C, cooling in water or caustic; reheat: 790°C, cooling in water or caustic (3% sidium hydroxide); Carbonitrided: 790-900°C, cooling in oil; temper: 120-205°C.
  • Class A bars shall be cold drawn using normal drafting practises. After cold drawing, the bars shall be stress relieved at a temperature of not less than 288°C.