PROPRIETARY LESCALLOY BG42 VIM-VAR Stainless steels

Material group: Ferrous Alloys / Stainless steels

Country / Standard: PROPRIETARY

Data updates

Latest Update: 2025-03

Total number of updates: 2

Update History

2023-04

This material has 47 properties — only a subset is shown here.

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PROPRIETARY LESCALLOY BG42 VIM-VAR Chemical Composition

CRITERIA

VALUE

UNIT

CAS NUMBER

CRITERIA

VALUE

1.1000 – 1.2000

UNIT

CAS NUMBER

7440-44-0

CRITERIA

VALUE

14.5000 – 15.0000

UNIT

CAS NUMBER

7440-47-3

CRITERIA

VALUE

≤ 0.3500

UNIT

CAS NUMBER

7440-50-8

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7439-96-5

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7439-98-7

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-02-0

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7723-14-0

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7704-34-9

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-21-3

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-62-2

Timken Steel Corporation, Product Data Sheets,

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PROPRIETARY LESCALLOY BG42 VIM-VAR Physical Properties

Temperature

0 - 30°C 30 - 100°C 100 - 300°C ≥ 300°C

PROPERTY / VALUE

Modulus of Elasticity

190 — 221 GPa

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Density

val1 kg/dm³

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Poisson Coefficient

val1

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Coefficient of Thermal Expansion (CTE)

val1 10^-6/°C

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This material has 47 properties — only a subset is shown here.

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PROPRIETARY LESCALLOY BG42 VIM-VAR Heat Treatments

Hardening: Preheating: Heat to 816-843°C (1500-1550°F) and equalize.
Austenitizing (High Heat): Heat rapidly from the preheat, and soak for 10 to 15 minutes. Furnace or Salt: Typically: 1121°C (2050°F). For under hardening, use 1066-1080°C (1950-1975°F).
Quenching: Pressurized gas, warm oil, or salt. For pressurized gas, the furnace should have a minimum quench pressure of 4 bars. A quench rate of approximately 222°C (400°F) per minute to below 538°C (1000°F) is critical to obtain the desired properties. For oil, quench until black, about 482°C (900°F), then cool in still air to 66-51°C (150-125°F). For salt maintained at 538-593°C (1000-1100°F), equalize in the salt, then cool in still air to 66-51°C (150-125°F).
Cryogenic Treatment: An optional cryogenic treatment may be used immediately after quenching to 66-51°C (150 to 125°F). Cool to -73°C (-100°F), remove from cooling medium, and allow part to warm to ambient temperature in still air.
Tempering: Temper immediately after quenching or cryogenic treatment. The typical temperature range for knife blades is 510-566°C (950-1050°F). Tempering below 510°C (950°F) is not recommended. Hold at temperature for 2 hours then air cool to ambient temperature. Double tempering is required.
ANNEALING: Annealing must be performed after hot working (forging) and before rehardening. Heat at a rate not exceeding 222°C per hour (400°F per hour) to 885-899°C (1625-1650°F), and hold at temperature for 5 hours. Then cool slowly with the furnace at a rate not exceeding 28°C per hour (50°F per hour) to 427°C (800°F). Continue cooling to ambient temperature in the furnace or in air.

PROPRIETARY LESCALLOY BG42 VIM-VAR Mechanical Properties

Temperature

0 - 30°C

PROPERTY / VALUE

Brinell Hardness (HB)

≤ 269

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Rockwell Hardness (HR)

59 — 62.5

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PROPRIETARY LESCALLOY BG42 VIM-VAR International Equivalent Materials

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MATERIAL

STANDARD

COUNTRY / PRODUCER

EQUIVALENCE CATEGORY

MATERIAL

BG42

STANDARD

PROPRIETARY

COUNTRY / PRODUCER

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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3Cross References

16Composition
5Mechanical Properties
19Physical Properties
1Heat Treatment
-Metallography
-Machinability

-Stress-Strain
-Formability
-Fatigue
-Fracture
-Creep

-Joints
-Coatings
-Dimensions
-Tribology

-Corrosion
-Ageing
-Weatherability
-Irradiation

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