What are the rules about coded welding?

[startinghandle]

When I worked at farm building
Manufactur in the early 80's
Coded welding was unheard of
However on tonight's S4C farming there was article about a building manufacturer and the owner said his welders have to be coded
I want to make a trailer to tow with pickup, I can arc weld vertical and overhead but I am
not coded so does it mean I
cannot make trailer
TIA

 

[Hesston4860s]

I know plenty of folks in ag engineering that make plenty of various things and none of them are coded.
I made my own shed frame back in 2014 it’s still stood up and I’m not coded.

 

[Andrew]

A lot of myths about regarding coded welding, not many in ag machinery are coded.

However road going trailers (not drawn by a tractor) have to be type approved. I have heard of some people just putting an old date on the plate, others modifying an older trailer.
You may be able to get it type approved I’m not sure.

 

[puntabrava]

A lot of myths about regarding coded welding, not many in ag machinery are coded.

However road going trailers (not drawn by a tractor) have to be type approved. I have heard of some people just putting an old date on the plate, others modifying an older trailer.
You may be able to get it type approved I’m not sure.

Take it for IVA

Vehicle approval

Type approval, individual (IVA), motorcycle single vehicle approval, voluntary approval, certificate of initial fitness, accessibility approval, fees, forms, replacement certificates

www.gov.uk

 

[Cowcalf]

seeing photos of some welding on here its probably for the best, tests for oil related work can easily run in to tens of thousands

 

[AJR75]

Coded welders will be working to a weld procedure. In simple terms this will be a joint made in a specific position using a controlled range of amps and volts from the welding. The idea being confidence in the consistency and performance of the weld/ joint type. By qualifying welders (coding) you know that they are able to achieve this quality of joint and thus your end product will be of a consistent quality (in welding terms).
There is a whole lot more to the world of welding procedures, specification and welder qualifications and and almost never ending list of joint variations and range of covers provided by different welding positions, joints, material type and thickness.

Hopefully that sheds a little light on the subject for you.

 

[Dave W]

I'd be less concerned about welding qualifications and more concerned about a home made trailer on the road.
please don't. Just buy something. It will be far cheaper in long run

 

[traineefarmer]

It's basically RED TRACTOR for welders.

 

[Deutzdx3]

When I worked at farm building
Manufactur in the early 80's
Coded welding was unheard of
However on tonight's S4C farming there was article about a building manufacturer and the owner said his welders have to be coded
I want to make a trailer to tow with pickup, I can arc weld vertical and overhead but I am
not coded so does it mean I
cannot make trailer
TIA

I made a specific size Beever trailer back in 2012 and was told by the nta it wouldn’t have to go for an sva. But that was changing. Any thing “home made” would have to go through an sva test to make sure it met requirements for safety. Look up the nta website.

 

[startinghandle]

I'd be less concerned about welding qualifications and more concerned about a home made trailer on the road.
please don't. Just buy something. It will be far cheaper in long run

Yes I know it is easier to buy trailer than make one at home but this is
different as it is not actually a trailer although I said it is!!!
I intend to use suspension units and new wheels and make a chassis upon
which a 90 year old Amanco open crank engine which has not been
Converted to HT will be bolted to and it will drive overhead shaft which in turn will drive pulper and kibbler and will be display at vintage rallies
The overhead shaft and engine have been together for many years
The dimensions of chassis will be
9x6 but that could alter
I will need to work out location of engine , kibbler and pulper so that it
Travels on road correctly
The unit will be kept dry with curtain
sides
All welding will be done by me and I intend not to turn over chassis to weld flat but to weld vertical and overhead
Well that's about it other than I have been welding since 1975

 

[Scribus]

Just as a matter of interest how many accidents are caused by faults in homemade trailers?

 

[Tim Howard]

Yes I know it is easier to buy trailer than make one at home but this is
different as it is not actually a trailer although I said it is!!!
I intend to use suspension units and new wheels and make a chassis upon
which a 90 year old Amanco open crank engine which has not been
Converted to HT will be bolted to and it will drive overhead shaft which in turn will drive pulper and kibbler and will be display at vintage rallies
The overhead shaft and engine have been together for many years
The dimensions of chassis will be
9x6 but that could alter
I will need to work out location of engine , kibbler and pulper so that it
Travels on road correctly
The unit will be kept dry with curtain
sides
All welding will be done by me and I intend not to turn over chassis to weld flat but to weld vertical and overhead
Well that's about it other than I have been welding since 1975

I have worked with and employed coded welders. believe me it means nothing. It doesn't hurt to do some test pieces and brake them open or cut threw the weld to see the penetration.
For safety the best way to work is with a roll over frame and downhand

 

[sixrow]

It is all a bit horses for courses general fabrication is only ever checked with an mpi test which does not pick up much anyway where as any high pressure pipe work is tested with x ray or auto ut which in theory is basically like being coded every time you do a weld.

 

[Lincoln75]

When I worked at farm building
Manufactur in the early 80's
Coded welding was unheard of
However on tonight's S4C farming there was article about a building manufacturer and the owner said his welders have to be coded
I want to make a trailer to tow with pickup, I can arc weld vertical and overhead but I am
not coded so does it mean I
cannot make trailer
TIA

I did BS4872 in the mid eighties ,ASME 9 and the British standard have always been required for certain industries ie oil/gas and have been around for ever ,almost.

 

[Lincoln75]

I'd be less concerned about welding qualifications and more concerned about a home made trailer on the road.
please don't. Just buy something. It will be far cheaper in long run

Very true ,unless you have a BFO press and profile cutters , a trade account with a steel stockholder its cheaper to buy one.

 

[Nearly]

I'd be less concerned about welding qualifications and more concerned about a home made trailer on the road.
please don't. Just buy something. It will be far cheaper in long run

Very true ,unless you have a BFO press and profile cutters , a trade account with a steel stockholder its cheaper to buy one.

Or buy one off Dave that needs welding.

 

[Mc115reed]

I used to be coded for all kinds of different welds and materials and basically they are only required for specific industries eg oil, gas, water pressurised systems.... 90% of industries there is no law requiring people to be coded welders, however a lot of people will only hire coded welders because atleast it means there’s half a chance the fella your hiring knows what he’s doing ....

Company I worked at had its own coding tests too for standard welding work too keep standards up without paying the expensive renewal test fees as we rarely did pipe work but they wanted too have a standard too work to

 

[multi power]

Yes I know it is easier to buy trailer than make one at home but this is
different as it is not actually a trailer although I said it is!!!
I intend to use suspension units and new wheels and make a chassis upon
which a 90 year old Amanco open crank engine which has not been
Converted to HT will be bolted to and it will drive overhead shaft which in turn will drive pulper and kibbler and will be display at vintage rallies
The overhead shaft and engine have been together for many years
The dimensions of chassis will be
9x6 but that could alter
I will need to work out location of engine , kibbler and pulper so that it
Travels on road correctly
The unit will be kept dry with curtain
sides
All welding will be done by me and I intend not to turn over chassis to weld flat but to weld vertical and overhead
Well that's about it other than I have been welding since 1975

You are clearly a very good welder, I'd crack on with it

 

[AJR75]

You are clearly a very good welder, I'd crack on with it

No pun intended I'm sure @multi power

 

[ACEngineering]

I have worked with and employed coded welders. believe me it means nothing. It doesn't hurt to do some test pieces and brake them open or cut threw the weld to see the penetration.
For safety the best way to work is with a roll over frame and downhand

No no. Uphill for penetration, down hill for looks?‍