Alloy Steel 1.7225 CNC Machining Services In China

We can provide alloy steel 1.7225 CNC machining services and we use state-of-the-art CNC equipment to deliver precision results every time. Whether you need a one-off part or a large production run, we can help.
Contact us today to learn more about our alloy steel 1.7225 machining services.

our Capability For Alloy steel 1.7225 CNC machining

Here are two popular services we provide for alloy steel 1.7225 CNC machining.


Alloy Steel 1.7225 CNC Milling

We offer our CNC milling services for Alloy Steel 1.7225. This steel is widely used in the engineering and construction industries due to its high strength and good weldability properties. It can be machined using CNC methods, and we are able to work with clients to produce parts to their specific requirements.

CNC turning for Alloy Steel

Alloy Steel 1.7225 CNC Turning

We offer CNC turning services for alloy steel 1.7225. And we can also cut them to any custom length as required by the customer. We have a team of highly skilled and experienced engineers who are experts in operating CNC machines, and they can produce the best quality alloy steel 1.7225 parts.

What is Alloy Steel 1.7225

1.7225 alloy steel is a standard German material delivered in pre-hardened condition. It is used for manufacturing various types of plastic molds, hot forging dies, and hot stamping dies. DIN 1.7225 steel is also named AISI 4140 steel, SCM440, and 42crmo4 steel.

chemical components

The following table shows the chemical composition of alloy steel1.7225:

1.7225chemical components

mechanical properties

 The following table outlines the mechanical properties of alloy steel 1.7225:

1.7225mechanical properties

1.7225Alternative names / Designation

1.7225 Alternative names

The use and requirements of heat treatment for 1.7225

  • Improve the hardness, strength, and elasticity of the alloy steel part. 
  • Improve mechanical properties, enhanced microstructure, and increased resistance to wear and tear.
  • Lengthen the lifespan of the alloy steel by 1.7225 parts.
  • Improve the electrical and thermal conductivity of the alloy steel

The delivery condition typically consists of pre-heat treatment up to 18-22HRc. If necessary, further heat treatment should be done gradually up to 840-875°C and kept for a sufficient amount of time for thorough heating, then quenched in oil until the temperature returns to room temperature.

CNC quality control

Why choose our Alloy Steel 1.7225 CNC Machining Services?

There are many reasons why you might choose CNC machining for your 1.7225 parts. Perhaps you need a very high degree of precision and accuracy. Maybe you need parts that are extremely strong and durable. Or, it could be that you need parts that can be produced quickly and efficiently.
Whatever your reasons, our CNC machining service is a great option for 1.7225 parts. Here at EJ CNC, we have years of experience in alloy steel 1.7225 CNC machining, and we can produce parts that meet your exact specifications. We also offer quick turnaround times and competitive pricing, so you can be sure you’re getting the best value for your money.

Surface Finishing Options for 1.7225

Surface finishing is an essential process in the manufacturing of alloy steel 1.7225 parts. It can improve the aesthetics of the alloy steel 1.7225 part, as well as protect it from corrosion and wear. 


This is a process of smoothing the surface of the alloy steel 1.7225 by rubbing it with an abrasive material. This process removes any roughness or imperfections in the surface, creating a smooth and shiny finish.


Plating involves coating the alloy steel1.7225 with a thin layer of another metal or alloy, such as nickel or chrome. This enhances the appearance of the alloy steel 1.7225 while also providing additional protection against corrosion.


Painting is a cost-effective way to add color and protect the surface of the alloy steel 1.7225. A variety of paints can be used, including enamel, epoxy, and powder coatings.

Powder Coating

Powder coating involves applying a dry powder to the surface of the alloy steel 1.7225 which is then heated and cured to form a protective layer. This provides a durable and long-lasting finish that is resistant to chipping, scratching, and fading.

Black Oxide

Black oxide is a chemical conversion coating that creates a black finish on the surface of the alloy steel 1.7225. It provides some corrosion resistance and also enhances the appearance of the steel.

Where does alloy steel 1.7225 Parts apply?

The alloy steel 1.7225 parts are widely used in various industries, such as automotive, construction, etc. It has good strength and toughness properties. The following are some of the industries that the alloy steel 1.7225 parts serve: 

Automotive industry

The alloy steel 1.7225 parts are used in various automotive applications, such as engine blocks, exhaust manifolds, etc.

Construction industry

The alloy steel 1.7225 parts are used in various construction applications, such as beams, columns, etc.

Aerospace industry

Aerospace CNC MachiningThe alloy steel 1.7225 parts are used in various aerospace applications, such as aircraft frames, turbine blades, and so on.

Other industries

The alloy steel 1.7225 parts are also used in other industries, such as oil and gas, marine, etc.


Alloy steel 1.7225 is extensively employed as a crucial material for crankshafts, tail shafts, marine propeller shafts, stern shafts, and rudder spindles. Furthermore, we supply alloy steel round bars.

The 4130 steel resembles the 4140 steel though we can’t substitute it. The 4140 steel has a larger proportion of metal than the 4130 steel. The 4140 steel has higher steel content as compared to the 4130 steel. Moreover, the 4140 steel has greater strength and hardenability than the 4130 steel. The welding ability of 4130 is superior to that of 4140, but its wearing-resistance capacity is weaker. AISI 4140 steel can be welded using any commercial method as it has good weldability.

A lot. Carbon steel is one of the most commonly used materials for CNC machining. Carbon steel is often used to produce parts that require strength and durability. It is a strong material that can be formed into complex shapes and has excellent wear resistance. The hardness of carbon steel makes it ideal for applications such as automotive components, tools and dies, medical equipment, and even aerospace components. In addition, it can also be used to produce parts with intricate details with high precision and accuracy. 

When tools made from 1.7225 alloy steel are heavily machined or ground, it is a good idea to reduce internal stresses prior to hardening in order to minimize the likelihood of warping.

42CrMo4 alloy steel is a versatile and incredibly strong material used in numerous engineering applications. It is made up of chromium, molybdenum, manganese, and carbon, making it one of the strongest alloys available.

This alloy is commonly used in automotive manufacturing, mining, oil & gas production, energy production, and construction due to its extreme strength and durability. 

Are you searching for a perfect Alloy steel 1.7225 CNC China Manufacturer?

As a leading Chinese CNC machined parts supplier, Our CNC Machining Services for steel 1.7225 offer an excellent chance for enterprises and people who must expeditiously and precisely process components.

Our team of specialists is available to give you the best level of assistance conceivable, so make the call now without any hesitation!