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Material Name

Alloy steel 4140 | 1.7225 | EN19 | 42CrMo4

Material Type
Metal
Process Compatibility
CNC machining
Property Value
Mechanical Properties
Ultimate tensile strength 355 – 370 MPa
Yield strength 230 MPa
Young’s modulus (modulus of elasticity) 208 – 216 GPa
Elongation at break 18 – 26 %
Physical Properties
Corrosion resistance Moderate to Poor
Magnetism Semi-Magnetic
UV resistance Excellent
Weldability Moderate
Thermal Properties
Maximum service temperature 613 – 650 °C
Thermal expansion coefficient 11.5 – 13.5 × 10-6/ºC
Thermal conductivity 42 – 48 W/(m·°C)
Electrical Properties
Electrical resistivity 20 – 25 µO*cm
Post Treatments
Post-Processing Tempering & Annealing
Anodizing compatibility Not suitable
Common Applications
Heavy duty shafts
Connecting rods
High tensile bolts
Alloy steel 4140 | 1.7225 | EN19 | 42CrMo4

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Explore MYT’s precision CNC machining services—designed for accuracy, speed, and consistency. From prototyping to production, we deliver high-quality components tailored to your exact specifications and industry needs.

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MYT specializes in high-precision CNC machining, turning your concepts into functional, high-quality parts with speed and accuracy. Equipped with advanced technology and skilled craftsmanship, we deliver production-ready components that meet your exact specifications, regardless of complexity.

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Looking to buy Alloy Steel 4140 | 1.7225 | EN19 | 42CrMo4 round bars with outstanding mechanical properties? MYT Machining provides high-quality alloy steel materials and offers precision CNC machining solutions that accommodate the most challenging industrial requirements. Whether you’re after EN19 steel price per kg or reliable 42CrMo4 steel suppliers USA, we’re your trusted partner.

Why Choose Alloy Steel 4140 for Your Projects?

Alloy Steel 4140 is a chromium-molybdenum high tensile steel known for:

  • Higher hardenability / Fatigue strength
  • Impressive durability and toughness & and impact strength
  • The versatile heat treatment (could either be tempered or hardened)
  • Wear and shock load resistance

This is ideal in gears, shafts, bolts, axles, and machine components requiring high performance and the ability to withstand intense usage.

Mechanical Properties of 1.7225 Steel (EN19|42CrMo4)

Understanding the 1.7225 steel mechanical properties is crucial when selecting the right material:

Property Value
Tensile Strength 850-1000 MPa
Yield Strength 680 MPa
Elongation ~16%
Hardness (HB) 248-302 (as supplied)
Heat Treatable To 55 HRC

Additional Highlights

  • High torsional strength and load-carrying capacity
  • Uses high temperatures, yet remains strong.
  • Dependable in oil and gas, automotive, aerospace, and mining works

Buy 4140 Alloy Steel Round Bar with Confidence

Looking to buy 4140 alloy steel round bar? At MYT Machining, we will provide:

  • Diameter: 20 mm to 600 mm
  • Length: standard and cut-to-length
  • Forms: Turned (round), or forged round bars, peeled

With us, you get a competitive EN19 steel price per kg based on real-time market rates and volume. We can supply small and large-scale needs as well as larger industrial contracts.

CNC Machining Alloy Steel 4140 Components

Our advanced facility provides full-service CNC machining of alloy steel 4140, ensuring:

  • Accurate milling, turning, drilling & threading
  • Tightly dimensioned custom complex geometries
  • Very good surface finishes on assembly

When you source Alloy Steel 4140 | 1.7225 | EN19 | 42CrMo4 from us, we can deliver it as raw material or fully machined to your exact specifications.

Applications of Alloy Steel 4140 | EN19 | 42CrMo4

Trusted in Diverse Industries

  • Gear transmission & heavy shafts
  • Drilling equipment and oil field equipment & and hydraulic machinery
  • Studs, bolts, and nuts of high tensile strength
  • Car axles, crankshafts, connecting rods
  • In CNC machining centers, tool holders & spindles

This has also made it one of the most trusted multipurpose steels on the market.

Why MYT Machining Can Be Your Reliable 42CrMo4 Steel  Supplier USA?

  • ISO certified supplier and machining shop
  • Totally traceable with material test certificates
  • Low lead time & worldwide shipping
  • Professional technical assistance to direct your selection

In addition, you can contact us with a list of our complete machining materials or services in CNC machining.

For the Best Alloy 42CrMo4 Price, Book Your Order Now

Ready to secure the best EN19 steel price per kg and partner with trusted 42CrMo4 steel suppliers USA? Get a bespoke quote by contacting our staff today. We are poised to be part of making your projects come alive using high-quality material and machining experiences.

Begin Your Project With The Ultimate Alloy Steel Now!

Do not sacrifice quality. Get high-strength Alloy Steel 4140 | 1.7225 | EN19 | 42CrMo4 round bars and machining services from MYT Machining. Call us today and speak with our representatives, and find out a quick quote for your specifications.

FAQ on Alloy Steel 4140 42CrMo4

What are the typical applications of Alloy Steel 4140?

It is rather popular in the production of gears, shafts, high-stress automotive parts, oil drilling tools, and other machine components that require superb toughness and fatigue.

Are you able to give CNC-finished 4140 parts?

Yes! We specialize in CNC machining alloy steel 4140 to deliver fully finished components that meet your exact dimensional and tolerance requirements.

What is the usual EN19 steel price per kg?

Prices are based on the diameter of the bar, the length needed, and quantity. Contact us for today’s best EN19 steel price per kg tailored to your order.

Do you export to countries outside the USA?

Absolutely. Our export-ready customers receive full export documentation and material certifications.

How does the 42CrMo4 grade compare to others?

The combination of strength, toughness, and machinability of 42CrMo4 (EN19 / 4140) makes it an even more useful material than many carbon steels when there is a need to carry a high load.

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