EN19

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High strength alloy steel

Description

EN19 is a high-strength alloy steel widely used in engineering applications where high tensile strength, toughness, and wear resistance are required. It is a medium-carbon, chromium-molybdenum steel suitable for quenching and tempering with excellent machinability.

EN19 (708M40)

Product Forms

LoneStar Manufacture

Studbolts

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Studding

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Hexagon Headed Bolting

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Nuts (hex, round, 12 point, specials)

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Socket Headed Bolting

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Double Ended and Waisted Studs

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Washers

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Associated OEM Parts

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Turned & milled machined components

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Thread types

LoneStar Manufacture

Metric Coarse

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Metric Fine

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Imperial UNC

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Imperial 8UN

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Imperial UNF

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ACME

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EN19 (708M40)

Carbon (C)

0.36-0.44%

Silicon (Si)

0.10-0.35%

Manganese (Mn)

0.50-0.80%

Phosphorus (P)

≤0.035%

Sulfur (S)

<0.035%

Chromium (Cr)

0.90-1.50%

Molybdenum (Mo)

0.20-0.40%

Tensile Strength

850-1000 MPa

Yield Strength 0.2% offset

680 MPa

Elongation

13%

Reduction of Area

Hardness

248-302HB

Designation

Grade

708M40

AISI

4140

42CrMo4

Werkstoff number

1.7225

Typical applications

Shafts
Gears
Studs & nuts
Connecting rods
Crankshafts
Axles

Disclaimer

All information is for illustrutive purposes only. LoneStar Group accepts no responsibility for the accuracy of data contained within or the use of any of the data by other parties.Properties do vary with the size and condition of the material.

Contact our electroplating experts to discuss your requirements.

We look forward to collaborating with you.