B.S. S 114 Structural and constructional steels

Material group: Ferrous Alloys / Structural and constructional steels
Country / Standard: United Kingdom / B.S.

Data updates

Latest Update: 2021-04
Total number of updates: 1
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This material has 20 properties — only a subset is shown here.

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B.S. S 114 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.32 – 0.40
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Mn
VALUE
1.3 – 1.7
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Mo
VALUE
0.22 – 0.32
UNIT
%
CAS NUMBER
7439-98-7
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

BS 2S 114: 1964 / Specification for aircraft material. Manganese-molybdenum steel (55/65 tonf/sq in: limiting ruling section 2½ inches)

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B.S. S 114 Physical Properties


Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 210 GPa
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Density
7.67 — 7.86 kg/dm³
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Poisson Coefficient
0.27 — 0.3
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This material has 20 properties — only a subset is shown here.

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B.S. S 114 Heat Treatments


  • The final heat treatment shall be:
    a) Hardening in oil from a temperature between 840-870°C
    b)Temper at a suitable temperature between 550-680°C.
    Hardened and tempered bars which have been subjected to a cold straightening or cold rolling operation shall be given a stress relieving treatment which shall be sufficient to restore proof stress.

B.S. S 114 Mechanical Properties


Temperature

PROPERTY / VALUE
Tensile Strength
853.2 — 1000.3 MPa
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Brinell Hardness (HB)
248 — 302
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Elongation, A
≥ 13 %
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Impact Energy
val1
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J
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Yield Strength, Rp0.2
val1
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MPa
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  • 5Cross References

  • 6Composition
  • 5Mechanical Properties
  • 3Physical Properties
  • 1Heat Treatment
  • -Metallography
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