Compare steel SCM440 and SCM435

On the market today, SCM440 steel is popularly used in the process of manufacturing machines, so this steel line is quite popular. However, there still exists a steel grade with similar properties to SCM440 steel, SCM435. So what are the differences between the two steel grades? Let's compare SCM440 and SCM435 solid steel.
1. Overview of SCM440 and SCM435 steel
a. SCM440 steel
- SCM440 steel is a line of chromium-molybdenum steel with characteristics of corrosion resistance, high impact resistance, excellent tensile strength in constantly changing temperature environments.
- Thanks to the above features, SCM440 steel is often used as gears, pump shafts, plastic molds, machine parts, etc.

                                        Comparison of solid steel SCM440 and SCM435
b. SCM435 steel
- SCM440 steel is carbon alloy steel used for machine structure.
- Due to the average carbon content, SCM435 steel has a high durability limit for a long time, with relatively good impact force.
2. Compare SCM440 and SCM435 solid steel for chemical composition
 

Through the SCM440 and SCM435 solid steel comparison table on the above chemical composition, it is easy to see that SCM440 and SCM435 steel are similarly prime. But in terms of content of components, SCM440 steel is slightly better in carbon content so the hardness and tensile strength of SCM440 is better than SCM435.
3. Characteristics of steel SCM440 and steel SCM435
a. Characteristics of steel SCM440
Based on the table of basic chemical components, SCM440 steel has the following typical characteristics:
- High deformation and high abrasion resistance.
- Homogeneous hardness on all dimensions.
- Easy to process by wire.
- Tensile strength is about 10.0.
- The load, abrasion and impact resistance of SCM440 steel is greatly improved and superior to carbon steel S45C, S50C, S55C.
b. Characteristics of steel SCM435
- SCM435 steel grade has good impact resistance, high tensile strength, can work many types of environment from 1100C to 5000C.
- Outstanding characteristics: Durable, fatigue resistant, high hardness, no tendency to generate too much heat.
- Welding properties are not good, so it needs heating 1500C - 4000C before welding. Should be used after tempering and reinforcing steel during the annealing process.
4. Typical applications of steel SCM440 and SCM435
a. SCM440 steel
With the above-mentioned properties, SCM440 steel is often used in mechanical processing such as:
- SCM440 steel is suitable for machine parts with high load capacity, high wear resistance and strong impact such as gears, shaft of motor movement, screws, ...

                                                       Solid steel hardness SCM440
- In addition, SCM440 steel is commonly used in the manufacture of automobile engines, motorcycles and industrial machine parts.
- SCM440 steel is also suitable for making mold steel (plastic molds, rice husk molds, ...), electronic components.
- Anchor bolts for telecommunication broadcasting stations.
- Operating shafts used in sugar cane presses of a sugar factory.
- Rolling shafts and pinions in a system of steel rolling mills.
It can be seen with its characteristics that SCM440 steel is applied very diverse. Depending on the needs, the user can flexibly choose the appropriate machining solution.
b. SCM435 steel
Because SCM435 steel has a lower hardness than SCM440 steel, in terms of application SCM435 steel is limited:
- Manufacturing industry, molds, mechanical processing, precision engineering.
- Making stamping molds, rollers, saw blades, wear-resistant parts.
- Making load-bearing details such as screws, bolts, shafts, gears, ...
 Hopefully the above information will solve the problems that readers are having. If you want more detailed advice on the type of industrial steel, readers can contact 0332 91 61 61 or chat online with us.
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