PROPRIETARY Uddeholm Formvar Tool steels

Material group: Ferrous Alloys / Tool steels

Country / Standard: PROPRIETARY

Data updates

Latest Update: 2020-08

Total number of updates: 2

Update History

2016-04

This material has 32 properties — only a subset is shown here.

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PROPRIETARY Uddeholm Formvar Chemical Composition

CRITERIA

VALUE

UNIT

CAS NUMBER

CRITERIA

VALUE

0.35

UNIT

CAS NUMBER

7440-44-0

CRITERIA

VALUE

5.0

UNIT

CAS NUMBER

7440-47-3

CRITERIA

VALUE

0.5

UNIT

CAS NUMBER

7439-96-5

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7439-98-7

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-21-3

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-62-2

Uddeholms AB, Product Data Sheets,

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PROPRIETARY Uddeholm Formvar Physical Properties

Temperature

0 - 30°C ≥ 300°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

val1

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This material has 32 properties — only a subset is shown here.

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PROPRIETARY Uddeholm Formvar Heat Treatments

Soft annealing: Protect the steel and heat through to 850°C (1560°F). Then cool in furnace at 10°C (20°F) per hour to 600°C (1110°F), then freely in air;
Stress relieving: After rough machining the tool should be heated through to 650°C (1200°F), holding time 2 hr. Cool slowly to 500°C (930°F), then freely in air;
Hardening: Preheating temperature: 600-900°C (1110-1650°F). Normally a minimum of two preheats, the first in the 600-650°C (1110-1200°F) range, and the second in the 820-850°C (1510-1560°F) range. When three preheats are used the second is carried out at 820°C (1510°F) and the third at 900°C (1650°F). Austenitizing temperature: 1000-1030°C (1830-1890°F);
Quenching: Recommended quenching media: High speed gas/circulating atmosphere, Vacuum (high speed gas with sufficient positive pressure). An interrupted quench at 320-450°C (610-840°F) is recommended where distortion control and quench cracking are a concern, Martempering bath, salt bath or fluidized bed at 450-550°C (840-1020°F), Martempering bath, salt bath or fluidized bed at 180-200°C (360-390°F), Warm oil, approx. 80°C (180°F). Temper the tool as soon as its temperature reaches 50-70°C (120-160°F);
Tempering: Temper minimum twice for forging and extrusion tools with intermediate cooling to room temperature. Holding time at temperature minimum 2 hr. Tempering in the range of 500-550°C (930-1020°F) for the intended final hardness will result in a lower toughness.
Gas nitriding at 510°C (950°F) for 10 h and depth of case 0.16 mm or 30 h and depth of case 0.22 mm. Plasma nitriding at 480°C (895°F) for 10 h and depth of case 0.15 mm. Nitrocarburizing in gas at 580°C (1075°F) for 2 h and depth of case 0.13 mm or in salt bath at 580°C (1075°C) for 1 h and depth of case 0.08mm
Austenitizing temperature 1025°C (1875°F). Holding time 30 minutes.

PROPRIETARY Uddeholm Formvar Mechanical Properties

Temperature

0 - 30°C ≥ 300°C

PROPERTY / VALUE

Tensile Strength

1480 — 1900 MPa

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Brinell Hardness (HB)

≤ 229

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Rockwell Hardness (HR)

val1

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Yield Strength, Rp0.2

1210 — 1560 MPa

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PROPRIETARY Uddeholm Formvar International Equivalent Materials

Showing 2 of 2 results.

MATERIAL

STANDARD

COUNTRY / PRODUCER

EQUIVALENCE CATEGORY

MATERIAL

Uddeholm Impax Supreme

STANDARD

PROPRIETARY

COUNTRY / PRODUCER

EQUIVALENCE CATEGORY

Composition 100%

MATERIAL

Uddeholm Dievar

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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2Cross References

6Composition
14Mechanical Properties
5Physical Properties
2Heat Treatment
-Metallography
-Machinability

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

-Joints
-Coatings
-Dimensions
-Tribology

-Corrosion
-Ageing
-Weatherability
-Irradiation

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