PN 18H2N2 Structural and constructional steels

Material group: Ferrous Alloys / Structural and constructional steels

Country / Standard: Poland / PN

Data updates

Latest Update: 2014-04

Total number of updates: 1

Update History

This material has 76 properties — only a subset is shown here.

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PN 18H2N2 Chemical Composition

CRITERIA

VALUE

UNIT

CAS NUMBER

CRITERIA

VALUE

0.15 – 0.22

UNIT

CAS NUMBER

7440-44-0

CRITERIA

VALUE

1.80 – 2.10

UNIT

CAS NUMBER

7440-47-3

CRITERIA

VALUE

≤ 0.30

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

7440-32-6

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-62-2

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-33-7

PN-H-84030-02: 1989 / Structural alloy steel - Carburizing steel - Grades

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PN 18H2N2 Physical Properties

Temperature

0 - 30°C

PROPERTY / VALUE

Modulus of Elasticity

190 — 210 GPa

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Density

7.67 — 7.86 kg/dm³

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Poisson Coefficient

0.27 — 0.3

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This material has 76 properties — only a subset is shown here.

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PN 18H2N2 Heat Treatments

The sample taken in long. direction: Hardening in oil or water at 860°C then Tempering in air at 190°C; Common HT: Heated for open die forging: 1100-850°C or for Die forging 1150-850°C; Softened at T= 650-700°C; Normalized at T= 870-900°C; Carbonized with powder at T=880-950°C or salt bath at T= 900-950°C or gas at T=880-950°C. Cooling in oil (water) or steam water at T=160-250°C or air; Hardened at T=840-870°C and cooled in water or oil or steam water at 160-250°C; Annealed at T=630-650°C than cooled in the furnace; Re-hardened at T=800-830°C, cooled in water (oil) or steam water at 160-250°C. Tempered at 170-200°C; Hardened without carburized: 860+/-10°C, oil.

PN 18H2N2 Mechanical Properties

Temperature

0 - 30°C

PROPERTY / VALUE

Tensile Strength

1050 — 1470 MPa

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Brinell Hardness (HB)

187 — 429

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Elongation, A

≥ 5 %

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Impact Strength

val1 kJ/m²

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Reduction of Area

val1 %

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Yield Strength, Rp0.2

val1 MPa

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-Cross References

12Composition
57Mechanical Properties
3Physical Properties
3Heat Treatment
-Metallography
-Machinability

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

-Joints
-Coatings
-Dimensions
-Tribology

-Corrosion
-Ageing
-Weatherability
-Irradiation

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