Lloyds LR Type 350 Structural and constructional steels

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

Data updates

Latest Update: 2024-11
Total number of updates: 2
Update History
2021-09

This material has 153 properties — only a subset is shown here.

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Lloyds LR Type 350 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
≤ 0.23
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
≤ 0.3
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Cu
VALUE
≤ 0.30
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
Ni
VALUE
val1
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UNIT
%
CAS NUMBER
7440-02-0
CRITERIA
Other total
VALUE
val1
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UNIT
%
CAS NUMBER
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

Rules for the Manufacture, Testing and Certification of Materials, Chapter 5 Section 4; Steel Forgings; Forgings for crankshafts, Lloyd's Register, 2025

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Lloyds LR Type 350 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 153 properties — only a subset is shown here.

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Lloyds LR Type 350 Heat Treatments

  • Normalizing and tempering, or
    Quenching and tempering
    The temperature used for tempering is to be not less than 550°C.
  • Forgings are to be:
    Fully annealed or
    Normalized or
    Normalized and tempered or
    Quenched and tempered.
    The tempering temperature is to be not less than 550°C.

Lloyds LR Type 350 Mechanical Properties

Temperature

PROPERTY / VALUE
Tensile Strength
550 — 870 MPa
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Brinell Hardness (HB)
210 — 250
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Elongation, A
≥ 11 %
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Reduction of Area
val1
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%
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Yield Strength, Rp0.2
val1
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MPa
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Impact Energy
val1
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J
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Lloyds LR Type 350 International Equivalent Materials

Showing 15 of 96 results.

MATERIAL
STANDARD
COUNTRY / PRODUCER
EQUIVALENCE CATEGORY
MATERIAL
LR Type 180
STANDARD
Lloyds
COUNTRY / PRODUCER
United Kingdom
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
LR Type 200
STANDARD
Lloyds
COUNTRY / PRODUCER
United Kingdom
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
LR Type 220
STANDARD
Lloyds
COUNTRY / PRODUCER
United Kingdom
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
BV Grade FC 640
STANDARD
BV
COUNTRY / PRODUCER
France
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
BV Grade FC 680
STANDARD
BV
COUNTRY / PRODUCER
France
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
LR Type 235
STANDARD
Lloyds
COUNTRY / PRODUCER
United Kingdom
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
LR Type 240
STANDARD
Lloyds
COUNTRY / PRODUCER
United Kingdom
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
LR Type 260
STANDARD
Lloyds
COUNTRY / PRODUCER
United Kingdom
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
LR Type 280
STANDARD
Lloyds
COUNTRY / PRODUCER
United Kingdom
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
LR Type 300
STANDARD
Lloyds
COUNTRY / PRODUCER
United Kingdom
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
LR Type 320
STANDARD
Lloyds
COUNTRY / PRODUCER
United Kingdom
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
LR Type 340
STANDARD
Lloyds
COUNTRY / PRODUCER
United Kingdom
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
LR Type 360
STANDARD
Lloyds
COUNTRY / PRODUCER
United Kingdom
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
LR Type 380
STANDARD
Lloyds
COUNTRY / PRODUCER
United Kingdom
EQUIVALENCE CATEGORY
Composition 100%
MATERIAL
LR Type 450
STANDARD
Lloyds
COUNTRY / PRODUCER
United Kingdom
EQUIVALENCE CATEGORY
Composition 100%

Equivalence categories reflect chemical-composition and mechanical-property comparison — always verify suitability against the governing specification for your application.

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  • 96Cross References
  • 24Composition
  • 27Mechanical Properties
  • 3Physical Properties
  • 3Heat Treatment
  • -Metallography
  • -Machinability
  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep
  • -Joints
  • -Coatings
  • -Dimensions
  • -Tribology
  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation
  • -Total Suppliers