PROPRIETARY BÖHLER S630 Tool steels

Material group: Ferrous Alloys / Tool steels

Country / Standard: PROPRIETARY

Data updates

Latest Update: 2025-01

Total number of updates: 2

Update History

2022-09

This material has 50 properties — only a subset is shown here.

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PROPRIETARY BÖHLER S630 Chemical Composition

CRITERIA

VALUE

UNIT

CAS NUMBER

CRITERIA

VALUE

Present

UNIT

CAS NUMBER

7429-90-5

CRITERIA

VALUE

0.95

UNIT

CAS NUMBER

7440-44-0

CRITERIA

VALUE

4.00

UNIT

CAS NUMBER

7440-47-3

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7439-98-7

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-62-2

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-33-7

Böhler Edelstahl, Product Data Sheets,

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PROPRIETARY BÖHLER S630 Physical Properties

Temperature

0 - 30°C

PROPERTY / VALUE

Modulus of Elasticity

190 — 217 GPa

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Electrical Resistivity

0.56 Ω∙mm²/m

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Density

val1 kg/dm³

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Electrical Conductivity

val1 S/m

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Heat Capacity

val1 J/(kg∙°C)

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Thermal Conductivity

18.8 W/(m∙°C)

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Poisson Coefficient

val1

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This material has 50 properties — only a subset is shown here.

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PROPRIETARY BÖHLER S630 Heat Treatments

Annealing: 770-840°C (1418-1544°F); Controlled slow cooling in furnace (10-20°C/h / (18-36°F/ h) to approx. 600°C (1110°F), air cooling.

Stress relieving: 600-650°C (1112-1202°F); Slow cooling furnace. To relieve stresses set up by extensive machining or in tools of intricate shape. After through heating, hold in neutral atmosphere for 1 to 2 hours.

Hardening and tempering:1050-1200°C (1922-2192°F), salt bath, vacuum. Preheating: 1st stage ~500°C, 2nd stage ~850°C, 3rd stage ~1050°C (for higher austenitising temperature). Austenitising: for cutting applications at higher austenitising temperatures (>1130°C), holding time after complete heating 80 seconds, maximum 150 seconds, to avoid material damage due to overtime. Austenitising: for cold work applications at lower austenitising temperatures (< 1100°C). Holding time after complete heating 15 to 30 min. Quenching: oil, warm bath (500 - 550°C), gas.
550-570°C (1022-1058°F), slow heating to tempering temperature immediately after austenitising. Dwell time in the furnace 1 hour per 20 mm material thickness (at least 1 hour). Slow cooling to room temperature after each tempering step. 3 tempering cycles recommended.

PROPRIETARY BÖHLER S630 Mechanical Properties

Temperature

0 - 30°C

PROPERTY / VALUE

Tensile Strength

≤ 950 MPa

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Brinell Hardness (HB)

≤ 280

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Rockwell Hardness (HR)

48.1 — 67.3

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-Cross References

6Composition
32Mechanical Properties
9Physical Properties
2Heat Treatment
-Metallography
-Machinability

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

-Joints
-Coatings
-Dimensions
-Tribology

-Corrosion
-Ageing
-Weatherability
-Irradiation

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