7Cr17MoV Silimar as 440A, added Mo and V to on baisis of 440A

This 7Cr17MoV( 440A) grade of steel has a bad reputation mostly because it is encountered in many low-cost knives, which are not properly heat treated. These knives bend easy under stress and loose their edge fast. If you compare a 7Cr17MoV( 440A)  blade hardened to 52-54 HRC with a 440-C blade hardened at 58 HRC, the performance difference is, of course, huge! Anyway, a well heat treated blade in 440-A will kick the ass of most other stainless steels in hard use knives, because it can be hardened up to 58-59 HRC without being brittle at that hardness (at which most steels are chippable or breakable if hammered or pryed with). 

I have experience with many steels and 7Cr17MoV( 440A)  is still one of my favorites. Despite I have knives made out of some very exotic steels, when it comes to heavy use, impacts and durability in wet and muddy environments at the same time, 7Cr17MoV( 440A)  offers maybe the best balance of features. Its edge retention is not one of the best, but its edge is never disolved by rust, nor you have to care about your knife might break in the field or chip at the edge by missadventure. 

This kind of material has been widely used. It has been used to produce products of high hardness and wear resistance and  medical devices.  In order to ensure the mechanical property, wearing quality and inoxidability of the steel, we take a series of measures, from electric furnace preliminary smelting to LF refining process and Ingot forging process.

Delivery form: Delivery in the form of coil stock or straight plate, hot rolled or cold rolled band in the form of annealed condition.

Steel band size range

Thickness(mm)		Width(mm)
Minimum	Maximum	Minimum	Maximum
2.0	8.0	10	600

Application:

 

7Cr17MoV  Bearing

 

 

7Cr17MoV stainless steel belt