CARBON STEEL H PROFILE C440 HN is part of the stainless steels or those alloy steels which contain a minimum of 10% chromium, imbuing these alloys with increased resistance to corrosion. The AISI has created a three-digit naming index for the stainless steels (as opposed to the typical four-digit names given to other, non-stainless steels;
Cutting Speeds Recomendations for CARBON STEEL H PROFILE C440 HN
| Application | Vc (m/min) | Vc (SFM) |
|---|---|---|
| Turning | 130-175 | 430-570 |
| Milling | 80-110 | 260-360 |
| Parting | 50-70 | 160-230 |
| Grooving | 80-105 | 260-340 |
| Drilling | 35-50 | 110-160 |
CARBON STEEL H PROFILE C440 HN is a martensitic stainless alloy with 18% chromium 1.20% carbon. The 'C' suffix stands for 'carbon' since it is the stainless steel alloy with the highest carbon content in the 400 series. The high carbon content yields very high strength at the expense of poor machinability, around 35%.
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