what grade are these magnets? some say N48, N52 etc.
62863
These have a 1.6 lbs. pull force in ideal test conditions. They are N42. Know that the higher the N# the more fragile the magnet. The magnetic strength per weight can increase but with that they increase in brittleness, they can break to pieces much easier. N42 provide the magnetic strength with durability for the best design for craft magnet uses.
62864
I am not sure. They are super powerful, however, they are too tiny and awkward to handle
2160464
Hello, I only 2 sets of 2.50 left I just relisted them. They are not the style you were asking about but you might be interested in these as well. If you enter the ASIN # in the search bar they should come up for you to see them. B00BTI320C or B00IVD5KBM Thanks for your interest.
716269
Read about stainless steel grading here: http://mightynest.com/blog/stainless-steel-all-about-food-grade-304-188-and-1810
19354
I'm not sure. I looked on them and the only letters/numbers are NSF 574. I'm sorry I don't have a better answer.
1023557
Yes! You want "rare earth" or "Neodymium" magnets. They are STRONG and tough to pull apart. We like the 3/8 inch to hold 1-2 pages (B000E67ZO4) and the 1/2 inch to hold more/thicker pages (B000UCWU38). Good luck - and keep them apart on the board or they will "smash" into each other!
1548859
I'm not sure what grade they are, but they are the best drill bits that I have ever bought. They work very well, and stay sharp, even after using. I hope this helps.
414121
Purchased through Amazon, it appears that they are grade 8.8, which I now understand is equivalent to SAE grade 5 (thanks for the clarification, A. Baldwin!!) The nuts have "|8|" stamped on each of them, and the bolts have "8.8" stamped on the heads. The description should specify "Grade 8.8" instead of simply "Grade 8."
31246
they are 100% 430 grade (18/2) stainless steel but are not marine grade stainless
1312495
I just got these - the plates themselves are _not_ magnetized. e.g., they will _not_ stick to a fridge by themselves. Also, as "CC" said above, they are light and thin ("very" light and thin!), and they stick like glue to a mag mount.
771120
Marked 18/8 so should be about 18% Chromium and 8% Nickel. An austenitic stainless alloy. I checked 2 of mine and they are non-magnetic.
2171386
They give you adapter from 52 to 77 - i used the 77 mm but did not usethe 52mm but i guess these will fit the 52 mm. This items is cheap plastic. not a very good grade quality.
682576
Don't know what grade: you would have to contact the manufacturer: Amco for that info. They are very nice knives though. I've purchased them twice already and will do so again when I need more.
1106119
I don't have anything in particular to compare the magnets right now, but in my opinion I would say medium size.
1809970
If it's magnetic, then it's NOT 18/10 stainless, as the description claims. According to metallurgists, only lesser grades of stainless are magnetic, due to the percentage of chromium,nickel, and molybdenum that makes up 18/10 Stainless Steel.
1473199
The larger the Grade Nxx number the stronger the magnetism within that magnet. The pulling or holding power of each magnet is determined by its mass (size) as well as the N rating. In your example the N42 would be able to hold more weight to it than the N50 you reference which I can assume is a smaller magnet. If both were the same size then the N50 would be more powerful in pull. Because lower N value magnets are cheaper than the more powerful ones, often you can purchase a larger sized lower N value magnet that ends up with more pulling power than a higher priced smaller N50 magnet for the same price or cheaper. Like in your example.
1337159
I don't actually remember, but I have conducted a test and they are not magnetic. Hope this helps. Joan R.
1666809
I tested your idea with different weight magnets (not a scientific examination of the possibilities, of course!) but, what I found is that they will hold the a magnet equal or slightly heavier than they are. This is basically the same as all the business promotion ones you get from companies hoping you'll stick their advertising or phone number to your 'fridge... all of those types hold just fine.