PROPRIETARY Uddeholm Rigor Tool steels

Material group: Ferrous Alloys / Tool steels

Country / Standard: PROPRIETARY

Data updates

Latest Update: 2016-04

Total number of updates: 1

Update History

This material has 34 properties — only a subset is shown here.

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PROPRIETARY Uddeholm Rigor Chemical Composition

CRITERIA

VALUE

UNIT

CAS NUMBER

CRITERIA

VALUE

1.0

UNIT

CAS NUMBER

7440-44-0

CRITERIA

VALUE

5.3

UNIT

CAS NUMBER

7440-47-3

CRITERIA

VALUE

0.6

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 Rigor Physical Properties

Temperature

0 - 30°C 100 - 300°C ≥ 300°C

PROPERTY / VALUE

Modulus of Elasticity

190 — 210 GPa

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Thermal Conductivity

val1 W/(m∙°C)

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Density

val1 kg/dm³

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Heat Capacity

val1 J/(kg∙°C)

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Poisson Coefficient

val1

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This material has 34 properties — only a subset is shown here.

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PROPRIETARY Uddeholm Rigor Heat Treatments

Soft annealing: Protect the steel and heat through to 850°C (1560°F). Then cool in the furnace at 11°C (20°F) per hour to 650°C (1200°F), then freely in air.
Stress relieving: After rough machining the tool should be heated through to 650°C (1200°F), holding time 2 hours. Cool slowly to 500°C (930°F), then freely in air.
Hardening: Preheating temperature: 650-750°C (1200-1300°F). Austenitizing temperature: 925-970°C (1690-1780°F) but usually 940-960°C (1720-1760°F).
Quenching media: Martempering bath or fluidized bed at 180-220°C (360-430°F) or 450-550°C (840-1020°F) then cool in air, Circulating air or atmosphere, Vacuum furnace with overpressure of gas at cooling, Oil (only for small and uncomplicated tools);
Tempering:Choose the tempering temperature according to the hardness. Temper twice with intermediate cooling to room temperature. Lowest tempering temperature 180°C (360°F). Holding time at temperature minimum 2 hours.
Sub zero treatment: Immediately after quenching, the piece should be sub-zero refrigerated to between -40 and -80°C (between -55 and -110°F) followed by tempering or aging. Sub-zero refrigeration for 2-3 hours will give a hardness increase of 1-3 HRC. Avoid intricate shapes as there is a risk of cracking.
Aging: tempering after quenching can be replaced by ageing at 110-140°C (230-285°F) and holding for 25-100 h.
Nitriding and Nitrocarburizing:
Gas nitriding at 525°C (980°F) for 20 h and depth of case 0.2 mm or 30 h and depth of case 0.3 mm or 60 h and depth of case 0.4 mm.
Nitrocarburizing at 570°C (1060°F) for 2 h and depth of case 0.1-0.2 mm.

PROPRIETARY Uddeholm Rigor Mechanical Properties

Temperature

0 - 30°C

PROPERTY / VALUE

Brinell Hardness (HB)

215

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5Cross References

6Composition
1Mechanical Properties
15Physical Properties
1Heat Treatment
-Metallography
-Machinability

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

-Joints
-Coatings
-Dimensions
1Tribology

-Corrosion
-Ageing
-Weatherability
-Irradiation

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