how about 425M 420HC 440A stainless steel???

4

440C knife steel

Joined
Apr 7, 2013
Messages
41
Guys, i am wondering how about the 425M steel?
Can somebody give chemical composition, edge holding, corrosion resistance etc..

And 425M steel is similar to what steel grade? 440A steel?

or just between 420HC and 440A grade?

Thanks. Lu
 
Here's the composition:

)Carbon: 0.40-0.54
)Vanadium: 0.10
)chromium: 13.50-15.00
)Molybdenum: 0.60-1.00
)Manganese: 0.50
)Phosphorus: 0.04
)Sulfer: 0.03
)Silicone: 0.80

-niner
 
440CKS, do you have exact chemical composition for 4Cr14Mov? I've tried searhc, it gets listed as equivalent of the W-Nr 1.2316 which from other sources is also GB - 3Cr17Mo, so I'm trying to figure out in what group 4Cr14MoV is.
 
Hi Gator97
Check it.
4Cr14MoV steel grade, this is set by our quality department.
C 0.42 - 0.48
Si 1.00
Mn 1.00
P 0.035
S 0.030
Cr 14.2-14.60
Mo 0.48-0.55
V 0.10-0.15

If you need more info, add my skype, paul_luhongxiang

Gator97 said:
440CKS, do you have exact chemical composition for 4Cr14Mov? I've tried searhc, it gets listed as equivalent of the W-Nr 1.2316 which from other sources is also GB - 3Cr17Mo, so I'm trying to figure out in what group 4Cr14MoV is.
Click to expand...
 
quality of the steel, should match the price of the knife, second the use of the knife.

some custom makers use high carbon for edge, or 440c for general or ATS34/154 or D2 since they used it for a long time and have perfected it. 1095 high carbons will degrade in air over time. most any steel will in high humidity.

each has it own special set of properties that make it great knife steel - lots of charts like this:

http://www.midwayusa.com/technicalNotes/application_pages/knife_steel_and_handle_material_chart.htm

others like cpm powder are exotic versions of the above, anything less at mentioned above is simply too save money

cheap knives under $100 retail or $50, for smaller ones, uses less expensive 440a which i would never buy, HC is ok.

aus6 is good for cheap knife like Ontario uses
 
Thanks, I'll add to the steel chart... I guess I'll bother you again with other GB alloys.
 
Basicly, the price is related to the steel grade, the heat treatment and its additional value like company's reputation.



dragonsprayer said:
quality of the steel, should match the price of the knife, second the use of the knife.

some custom makers use high carbon for edge, or 440c for general or ATS34/154 or D2 since they used it for a long time and have perfected it. 1095 high carbons will degrade in air over time. most any steel will in high humidity.

each has it own special set of properties that make it great knife steel - lots of charts like this:

http://www.midwayusa.com/technicalNotes/application_pages/knife_steel_and_handle_material_chart.htm

others like cpm powder are exotic versions of the above, anything less at mentioned above is simply too save money

cheap knives under $100 retail or $50, for smaller ones, uses less expensive 440a which i would never buy, HC is ok.

aus6 is good for cheap knife like Ontario uses
Click to expand...
 
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