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Just what is "All Stainless"??
"Steve Lusardi" wrote in message ...
: Dave, : Not to get too technical, stainless is snip Thanks! A little refresher was all I needed to get my tired old brain cells back on line. Dave |
#2
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Just what is "All Stainless"??
From the Stainless Steel Information Center's website (and they oughta
know, right?) at http://www.ssina.com/SSINA2002/SSINAsite/faq.html "5. Is stainless steel magnetic? Answer: There are several “types” of stainless steel. The 300 series (which contains nickel) is NOT magnetic. The 400 series (which just contain chromium and no nickel) ARE magnetic." (Emphasis in original document.) I've never heard of hose clamps made from 440 or any 400-series steel. Bring a magnet when you go shopping. The growth of global free trade has, I believe, led to the deterioration in the uniformity and adherence to specifications for steel. For more, see http://www.ssina.com/SSINA2002/SSINA...ions/learn.htm from the Specialty Steel Industry of North America's website. Rich Mechaber Steve wrote: I was removing some hose clamps from the hoses to my head. (minor leak). The hose clamps were bleeding rust where the seeping sea water was running over the them. These clamps had only been exposed to the marine enviorment (in the head) for one year.. I checked the markings on the screw housing and it said IDEAL All Stainless.. I grabbed a magnet and sure enough, the screw is magnetic. Looks like stainless, not zinc or cad. plated, but it is some grade of stainless that is not only magnetic, but rusts. Since I purchase such hardware by the box, I was able to locate the remainder of these clamps in my spares and traced the purchase back to a reputable (not WM) marine supplier. I just found one IDEAL "All Stainless" hose clamp in my shop that claims to be 'Made in USA' (not that that means to much) but it also has Mil Spec number on it. (MS 35842-11) Guess what, the screw is also magnetic. If I find this problem with all the rest of my hose clamps, I think I should complain and find replacements. I wonder just how a fellow is suppose to find and trust in the marine hardware he purchases. Maybe sampling and lab test... Oh wait! the military dose that and assigns a Mil Spec. number.. Hmm! did Uncle Sam get screwed also?? Frustrated With rusting hose clamps. Steve s/v Good Intentions |
#3
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Just what is "All Stainless"??
To get back to the practical question of what kind of hose clamps to use, I've
had good results with the AWAB clamps and less good results with the Ideal clamps. Spend the $2 extra. |
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