Breaking Strain Test

[phill_itofish]

After loosing a few good fish last year through line snapping and bad knots i decided to change my setup a bit this year and have bought some 20lb decoy split rings as part of this. I decided to test them today and was happy with the results, with them straightening out at about 18lb. The idea was to attach these to all my trebles so i loose hooks but get my lures back. While i was on i decide to test my braid, i have some 11kg (about 22lb) left from last year still on the spool, i was surprized and disappointed to find it snapped at about 12lb similarly with some left over Berkeley Pro 20lb snapped at 10lb. Ive been looking at getting some new braid but might have to rethink the breaking strain of my line. Has anyone ever tested there line if so what did you find.

[over par]

There's been much chat about actual breaking strains of certain braids. Have a look at this link, the guy has done quite a bit of research on Power Pro.

[Wreckingball76]

That's interesting Phil. Do you wash your reels and line down after every use? It may be caused by corrosion on the lines surface as the sal****er will breakdown the surface coated protection on the line and cause Stress Corrosion Cracking especially if the surface of the line has become abraded in any way. This is quite a common cause of mechanical failure when materials are subjected to tensile forces in a corrosive environment. Usually applicable to metals, but I'd imagine the principle would be the same.

[over par]

That's interesting Phil. Do you wash your reels and line down after every use? It may be caused by corrosion on the lines surface as the sal****er will breakdown the surface coated protection on the line and cause Stress Corrosion Cracking especially if the surface of the line has become abraded in any way. This is quite a common cause of mechanical failure when materials are subjected to tensile forces in a corrosive environment. Usually applicable to metals, but I'd imagine the principle would be the same.

Si - r u an Engineer by any chance?

[Wreckingball76]

Si - r u an Engineer by any chance?

What gave that away?? Lol yes mate. Apologies, every now and again I involuntarily blurt out something technical. It's like a form of Engineering Tourette's. lol

[phill_itofish]

That's interesting Phil. Do you wash your reels and line down after every use? It may be caused by corrosion on the lines surface as the sal****er will breakdown the surface coated protection on the line and cause Stress Corrosion Cracking especially if the surface of the line has become abraded in any way. This is quite a common cause of mechanical failure when materials are subjected to tensile forces in a corrosive environment. Usually applicable to metals, but I'd imagine the principle would be the same.

Yeah i do Si, but the line i tested was still on the spool it has never been fished.

[Wreckingball76]

The line must be sub-standard in some way, line manufacturers are supposed to put batches through Tensile testing to ensure quality and breaking strain is right to within the manufacturing tolerance. That's quite shocking if you haven't used it, not to mention dangerous, especially if the line had snapped during casting etc.
When you tested it where did it break? Did it break at a bend or knot, or a section where It was perfectly vertical and straight?

[Piker]

A lot of the stated breaking strains for the modern very thin braids are a little ambitious to say the least. As with mono, best to go by diameter, not the claimed breaking strain on the spool

[The Deeps]

15lb Maxima breaks at something like 23lb
Cut yer hands to bits if you try to snap it

[phill_itofish]

The line must be sub-standard in some way, line manufacturers are supposed to put batches through Tensile testing to ensure quality and breaking strain is right to within the manufacturing tolerance. That's quite shocking if you haven't used it, not to mention dangerous, especially if the line had snapped during casting etc.
When you tested it where did it break? Did it break at a bend or knot, or a section where It was perfectly vertical and straight?

At a straight section mate, it wont have been perfectly vertical mine, as i was testing it with a spring balance. I would have been happy with 10-15% less but 50% is a bit much

[ANDY:-)]

Very intresting post, a while back paul from moonfleet gave me some 12lb yuki 3G mono to try out he said it has a higher braking strain than the stated 12 lb so done a basic test with a set of spring scales and it broke arround 15lb, so i decided to get some 7.5 lb to load on to my lrf reel as main line and done another quick test and it broke arround 11lb so was really impressed

[phill_itofish]

Well lads if you've got some scales and some braid, test it and lets see what's good and what's not

[phill_itofish]

There's been much chat about actual breaking strains of certain braids. Have a look at this link, the guy has done quite a bit of research on Power Pro.

What link mate

[Thunderpants]

Interesting thread this, I'd be very interested to hear the results. I will test my lines and add to it. Last year I was using Shimano Technium Surf mono which is a lot thinner than other monos for it's breaking strain so was ideal for lure fishing. When new it was very strong but after only a few months use it started snapping off and I annoyingly lost three very big pollack that would have shattered my PB. I couldn't believe how quickly it had deteriorated. I still have the line so am going to test it when I find some weights to do it with. Maybe a cariier bag full of sand will do it. Anyway, this year I am using Power Pro Super 8 braid which I got from the states via ebay. I have used it a couple of times and it looks good so far, very strong and casts a good distance, but only time will tell.

[over par]

What link mate

Welcome

Sorry matey link not working - I think you've got to register, but here's the info

0.10mm diameter is 5Ib breaking strain
0.13mm diameter is 8Ib breaking strain
0.15mm diameter is 10Ib breaking strain
0.19mm diameter is 15Ib breaking strain
0.23mm diameter is 20Ib breaking strain
0.28mm diameter is 30Ib breaking strain

Forget about the metric labelling in kilo (kg) as they are utter nonsense and bear no relation to the reality.