Dex said:
I secured my tractor the other day with a strap. (I was in a hurry) I was going down the road about 5 miles. Hit a pot hole in the road and the strap cut almost in two. Alot of force is generated on those straps when unexpected things happen. Never again!!!!!!!
Her is my view... You probably had the strap in a compromising position.. like against a sharp or flat angled surface.
I'm also one of those guys that use ratchet straps, or a front chain plus ratchet straps. I carry scrap burlap that i wrap arounf my chain or straps at pinch or sharp points to prevent scratching, galling, or cutting.
I also use straps that are 3x rated for my load, plus use multiple straps..e tc.
Everyone has their own experience..and that will dictate what you use. Considering I work for a GC.. I get to see lots of semi trucks in and out of our yard. I see both straps and chains..
Lots of cargo comes in on flatbeds with nothing but 3" and 4" straps holding it down.. large multi-ton concrete precast aprts.. large metal parts.. assemblies.. etc. However...both have their problems.
straps can degrade from fraying or weather.. they can stretch when old.
Chains -do- break. Hook ends pop.. pins holding ends pop.
Loads can shift and loosen chains and straps. If you are not carefull, a chain can catch and appear to be tight and then loosen right up and have lots of slack.
Keep in mind that if you have a 5000# piece of equipment running down the road and hit a ditch.. It's likely that the chain may snap from a shock load.. that a stake pocket may rip off.. that the lip ont he trailer that you are chained to may fail.. etc. Shock loads can generate man multiples of the payloads weight in force very quickly.
I've seen my share of transport grade chain snap on what i though was a 'no brainer' setup. i've seen low speed mishaps where chains deformed or sheard.. Would a strap have made it? Dunno... Don't want to recreate the accident to find out.
best bet is to choose a method that is in compliance with the laws int he area where you travel, and that you feel safe about... can't do much more than that.
( besides chocking tires, setting brakes, and other safety tidbits.. etc. insurance coverage.. etc. )
Soundguy