Alloy steel 4340 | 1.6511 | 36CrNiMo4 | EN24： Famous my its toughness and strength 4140 is medium carbon low alloy steel. It can be heat treated to high strength levels while maintaining good toughness, wear resistance and fatigue strength levels, combined with good atmospheric corrosion resistance, and strength.
Alloy steel 1215 | EN1A ：1215 is a carbon steel meaning that contains carbon as a main alloying element. It is often compared to carbon steel 1018 due to the similarity of their applications, but they have many differences. 1215 steel has better machinability and can hold tighter tolerances as well as a brighter finish.
The most common surface treatment for CNC machining parts of alloy steel material is black oxide. This is an environmentally friendly process which results in a black finish that is corrosion and wear resistant. Other treatments include vibro-deburring, shot peening, passivation, painting, powder coating, and electroplating.
The products shown here is only to present the scope of our machining business activities.
We can custom according to your parts drawings or samples."