AISI 4330 V MODIFIED Bar

Alternative and trade names
AISI 4330 V MODIFIED
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Description

AISI 4330 V is a chromium, nickel, molybdenum, vanadium high strength low alloyed steel suitable for downhole tools and drilling jars. It offers improved hardenability and the ability to achieve higher tensile strengths and impact.

Related Standards

Equivalent Materials

This material data has been provided by Sverdrup Steel.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

Ashby charts

Properties

Dimension

PropertyValue

Diameter

105 - 260 mm

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Mechanical

PropertyTemperatureValue

Charpy impact energy, V-notch

-20.0 °C

32 J

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Elongation

23.0 °C

15 %

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Hardness, Brinell

23.0 °C

341 - 388 [-]

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Tensile strength

23.0 °C

1138 MPa

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Yield strength Rp0.2

23.0 °C

1034 MPa

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Chemical properties

PropertyValue

Carbon

0.28 - 0.33 %

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Chromium

0.7 - 0.95 %

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Iron

Balance

Manganese

0.75 - 1 %

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Molybdenum

0.35 - 0.5 %

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Nickel

1.65 - 2 %

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Phosphorus

0.03 %

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Silicon

0.2 - 0.35 %

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Sulfur

0.025 %

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Vanadium

0.05 - 0.1 %

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Technological properties

Property
Heat Treatment

Hardened at 840 to 870°C and tempered at 600°C.

Welding

Better than AISI 4145, but still challenging.