Alloy tubing

atlasash said:
i was told the two metals corrode each other, alley beams are intended for use with steel tube tho so i dont know. i'd only be using the alley for stacks or handrails etc and they wouldnt be up long enough to corrode anyway really
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Dont get me wrong mate, i use Ali with Drop forged fittings and Steel Trannies, the Lighter the kit the better mate, crack on Bro get as much of it as you can.

Regards
Paddy
 
allways thought most alli tube ended up cut in to butts and sold in the scrappy

Yeh we mix ally to but was told shouldnt use as ledgers when mixed with steel
 
yeah you can get them in 26ft lengths the reason being that equals 8mtrs..The containers that they ship alloy tubing comes in 20ft - 30ft and 40ft containers..It was just a something i could never figure out till i was told at Boltons...
 
is the difference in weight 20% between alloy and steel ? or is that strengh (scratchs his head)
 
mixing alloy and steel

yes there is a corrosion risk when you mix alloy and steel. its the alloy that corodes its called an electrolytic reaction and happens whenever two dissimilar metals cone into contact with each other thats why they weld big lumps of aluminium(sacrificial anodes) on the legs of oil rigs so the ally corodes and not the steel idont think its a problem in scaffolding because of the relatively short time it is erected. on the strength side i think we're told we can't mix it because there's a good chance of somebody being sent out to do a job told its all going up in ally then when you've got a couple of lifts on the firm run out of ally and the rest goes in in steel thus overloading the standards in the base lift. PS tonights homework question is when is an aluminium tube stronger than a steel one and why
 
guessing when used as upright due to alli being thicker. any ideas on scaffold lift heights bay lengths we use are for steel tube so does that mean alli tube has to be designed
 
interesting , we have a lot of ali so await response
 
any pics mate , was that the demo job
 
see it on the internet years ago .... impressive
 
when i did my part 1 in 92 our instructor told us you can only go to 100ft where steel you could go to 152ft in height.He also told us that the standard spacing was closer together.Now a days you might have to have even a basic scaffold designed..Dont hold me to that though

---------- Post added at 08:17 AM ---------- Previous post was at 08:13 AM ----------

boultons in midlands had loads of brand new 8mtr lengths for sale as they have stopped making beams..It was a while ago but they had 20,000 lengths of it
 
Started Scaffolding in 1976 at a firm in York called Raylor's... All tube was alloy as were the fittings.. We started on our own 2 years ago (2008) and a local builder we were doing a job for offered us some alloy tube to buy... Yep, all stamped with "Property of H.B. Raylor & co Ltd.York"... More than 30 years old and still in use....
 
Tomcat
your post brought back a few memories of Raylors, I worked for them for a couple years back in 1980 did most of thier work on the Leeds side.

Going back on steel after using only ally for two years was the pits.

As an aside
"
In H B Raylor & Co Limited v McCardle 31.7.85 EAT 573/84 a scaffolder with 17 years service was seen by a site office representative (i.e. a third party) returning to the building site "legless" in breach of very strict company rules. He claimed that he intended only to pick up his tools. The Employment Appeal Tribunal, reversing the decision of the Industrial Tribunal, upheld the dismissal. The reputation of the employer was regarded as a factor of importance.

Poor bugger was only doing what the rest of us did on a regular basis
 
is that the same raylors arted etc that invented gravlocks
 
Hi Rigger, That would have been Pat McCardle, very sadly no longer with us.. when i first started Raylors as a keen 18 year old it was normal to get passed around from gang to gang depending on who needed an extra sherpa.. Some of the older blokes were real ar**holes to us "young'uns" but Pat was completely different, he never shouted or bullied like some of the others, in fact, it was difficult to hear him at all sometimes as he was so softly spoken, a real gent.. Unfortunately, like most of us he had a taste for the drink and would go on some heavy-duty benders.. In later life things caught up with him and the drink and depression led him to take his own life a few years ago... All the old Scaffs turned up for the Funeral and we gave him a send off that he would have been proud of.. we also re-built York while we were at it.... Stay in Touch, Best Regards, Tomcat..
 
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