Lloyds LR FH 27S Structural and constructional steels

Material group: Ferrous Alloys / Structural and constructional steels
Country / Standard: United Kingdom / Lloyds

Data updates

Latest Update: 2024-11
Total number of updates: 2
Update History
2020-04

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Lloyds LR FH 27S Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
Al
VALUE
≥ 0.015
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
C
VALUE
≤ 0.16
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Ceq
VALUE
≤ 0.34
UNIT
%
CAS NUMBER
CRITERIA
Cr
VALUE
val1
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UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Cu
VALUE
val1
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UNIT
%
CAS NUMBER
7440-50-8
CRITERIA
Mn
VALUE
val1
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UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Mo
VALUE
val1
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UNIT
%
CAS NUMBER
7439-98-7
CRITERIA
N
VALUE
val1
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UNIT
%
CAS NUMBER
7727-37-9; 17778-88-0
CRITERIA
Nb
VALUE
val1
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UNIT
%
CAS NUMBER
7440-03-1
CRITERIA
Nb+Ti+V
VALUE
val1
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UNIT
%
CAS NUMBER
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
CRITERIA
Ti
VALUE
val1
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UNIT
%
CAS NUMBER
7440-32-6
CRITERIA
V
VALUE
val1
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UNIT
%
CAS NUMBER
7440-62-2

Rules for the Manufacture, Testing and Certification of Materials, Chapter 3 Section 3; Rolled Steel Plates, Strip, Sections and Bars; Higher strength steels for ship and other structural applications, Lloyd's Register, 2025

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Lloyds LR FH 27S 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 8660 properties — only a subset is shown here.

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Lloyds LR FH 27S Heat Treatments

  • For plates and wide flats, any grain refining practice:
    t ≤ 150 mm, furnace normalized (N), thermomechanically controlled rolling (TM), quenched and tempered (QT);

    For sections and bars, any grain refining practice:
    t ≤ 50 mm, furnace normalized (N), thermomechanically controlled rolling (TM), quenched and tempered (QT) (Subject to the special approval of LR, sections may be supplied in the NR condition)

Lloyds LR FH 27S Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
400 — 530 MPa
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Elongation, A
≥ 14 %
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Yield Strength, Rp0.2
≥ 265 MPa
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  • 45Cross References
  • 16Composition
  • 20Mechanical Properties
  • 3Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability
  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • 83Joints
  • -Coatings
  • -Dimensions
  • 1Tribology
  • 8491Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
  • -Total Suppliers