PROPRIETARY Nitralloy 135 modified vac-arc Structural and constructional steels

Material group: Ferrous Alloys / Structural and constructional steels

Country / Standard: PROPRIETARY

Data updates

Latest Update: 2025-03

Total number of updates: 2

Update History

2017-10

This material has 64 properties — only a subset is shown here.

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PROPRIETARY Nitralloy 135 modified vac-arc Chemical Composition

CRITERIA

VALUE

UNIT

CAS NUMBER

CRITERIA

VALUE

1.2000

UNIT

CAS NUMBER

7429-90-5

CRITERIA

VALUE

0.4000

UNIT

CAS NUMBER

7440-44-0

CRITERIA

VALUE

1.6000

UNIT

CAS NUMBER

7440-47-3

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7439-96-5

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7439-98-7

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-21-3

AK steel, Product Data Sheets,

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PROPRIETARY Nitralloy 135 modified vac-arc 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 64 properties — only a subset is shown here.

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PROPRIETARY Nitralloy 135 modified vac-arc Heat Treatments

Forging: Heat uniformly to 2000-2025°F (1093-1107°C). Do not forge below 1700°F (927°C). Air cool after forging.
Anneal: Heat to 1700°F (927°C) and slow cool or subcritical anneal at 1250-1300°F (675-704°C).
Normalize: Heat to 1800°F (982°C) hold for 1-4 hours and air cool.
Austenitize: Heat to 1700-1750°F (927-954°C) for V hour per inch of cross section and quench into oil or water. Water quenching is preferred when the cross section exceeds 1 inch in thickness.
Temper: Heat to 1000-1300°F (538-704°C) depending on the desired hardness. Material should be tempered for 1 hour per inch of thickness.
Nitride: The nitriding time, temperature and method will vary depending upon the requirements of the final product. The nitriding temperature is usually between 900 and 1100°F (482 and 593°C).
Heat treatment for mechanical properties: Hardened at 940°C (1725°F) and quench; Tempered at 648°C (1200°F) and air cool. The bars with 76 - 127 mm dimension were water quenched.
Anneal: Heat to 927°C (1700°F) and slow cool or subcritical anneal at 675-704°C (1250-1300°F).
Normalize: Heat to 982°C (1800°F), hold for 1-4 hours, and air cool.
Austenitize: Heat to 927-954°C (1700-1750°F) for ½ hour per 25.4 mm of cross-section and quench into oil or water. Water quenching is preferred when the cross-section exceeds 25.4 mm in thickness.
Temper: Heat to 538-704°C (1000-1300°F) depending on the desired hardness. Material should be tempered for 1 hour per 25.4 mm of thickness.
Nitride: The nitriding time, temperature, and method will vary depending on the requirements of the final product. The nitriding temperature is usually between 482 and 593°C (900 and 1100°F).

PROPRIETARY Nitralloy 135 modified vac-arc Mechanical Properties

Temperature

0 - 30°C

PROPERTY / VALUE

Tensile Strength

760 — 930 MPa

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Brinell Hardness (HB)

269 — 340

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Elongation, A

15 — 16 %

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Reduction of Area

val1 %

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Yield Strength, Rp0.2

val1 MPa

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PROPRIETARY Nitralloy 135 modified vac-arc International Equivalent Materials

Showing 7 of 10 results.

MATERIAL

STANDARD

COUNTRY / PRODUCER

EQUIVALENCE CATEGORY

MATERIAL

G71406

STANDARD

UNS

COUNTRY / PRODUCER

United States

EQUIVALENCE CATEGORY

Implicit

MATERIAL

A 519 E7140

STANDARD

ASTM

COUNTRY / PRODUCER

United States

EQUIVALENCE CATEGORY

Implicit

MATERIAL

A 646 Grade Nit. 135

STANDARD

ASTM

COUNTRY / PRODUCER

United States

EQUIVALENCE CATEGORY

Implicit

MATERIAL

A 646 Grade 21

STANDARD

ASTM

COUNTRY / PRODUCER

United States

EQUIVALENCE CATEGORY

Implicit

MATERIAL

A 355 Class A

STANDARD

ASTM

COUNTRY / PRODUCER

United States

EQUIVALENCE CATEGORY

Implicit

MATERIAL

S-6709A

STANDARD

MIL

COUNTRY / PRODUCER

United States

EQUIVALENCE CATEGORY

Implicit

MATERIAL

LK3

STANDARD

PROPRIETARY

COUNTRY / PRODUCER

EQUIVALENCE CATEGORY

Implicit

Equivalence categories reflect chemical-composition and mechanical-property comparison — always verify suitability against the governing specification for your application.

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10Cross References

12Composition
30Mechanical 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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