PROPRIETARY STAMINAL Tool steels

Material group: Ferrous Alloys / Tool steels

Country / Standard: PROPRIETARY

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This material has 38 properties — only a subset is shown here.

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PROPRIETARY STAMINAL Chemical Composition

CRITERIA

VALUE

UNIT

CAS NUMBER

CRITERIA

VALUE

0.5500

UNIT

CAS NUMBER

7440-44-0

CRITERIA

VALUE

0.4000

UNIT

CAS NUMBER

7440-47-3

CRITERIA

VALUE

0.9000

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

7440-21-3

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-62-2

Latrobe Specialty Steel, Product Data Sheets,

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PROPRIETARY STAMINAL Physical Properties

Temperature

0 - 30°C

PROPERTY / VALUE

Modulus of Elasticity

190 — 210 GPa

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Density

7.72 — 8 kg/dm³

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Poisson Coefficient

0.27 — 0.3

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This material has 38 properties — only a subset is shown here.

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PROPRIETARY STAMINAL Heat Treatments

Hardening: Preheating - heat at a rate not exceeding 222°C per hour to 649-704°C and equalize; Austenitizing (High Heat) - Heat slowly from the preheat. Furnace or salt 871°C. Soak for 40 min. for the first 25.4 mm of thicknes, plus 20 min for each additional 25.4 mm; Quenching - Air pressurized gas or interrupted oil to 66-51°C. For the oil quench, about 482°C, than cool in still air to 66-51°C; Tempering - Temper immediately after quenching. Hold at temperature for 1h per 25.4 mm of thickness, 2h minimum, then air cool to ambient temperature. The typical tempering range is 177-204°C for cold work applications and 427-482°C for hot work applications. Double tempering is required for 316°C and above. After heat treatment, a soaking time of 4 to 6 hours at the tempering temperature is strongly recommended. Annealing: Must be performed after hot working and before rehardening. Heat at a rate not exceeding 222°C per hour to 843-871°C, and hold at temperature for 1h per 25.4 mm of thickness, 2h minimum. Cool slowly with the furnace at a rate not exceeding 28°C to 538°C. Continue cooling to ambient temperature in the furnace or in air. Then reheat to 593-607°C and hold for 2h per inch of thickness. Slow cool with the furnace.

PROPRIETARY STAMINAL Mechanical Properties

Temperature

0 - 30°C

PROPERTY / VALUE

Tensile Strength

≥ 1310 MPa

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Elongation, A

≥ 5 %

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Reduction of Area

val1 %

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Rockwell Hardness (HR)

val1

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Yield Strength, Rp0.2

≥ 1140 MPa

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-Cross References

7Composition
25Mechanical Properties
3Physical Properties
1Heat Treatment
-Metallography
-Machinability

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

-Joints
-Coatings
-Dimensions
-Tribology

-Corrosion
-Ageing
-Weatherability
-Irradiation

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