gibbon Posted June 23, 2010 Share Posted June 23, 2010 Hi, I've tried the search feature but couldnt find what I was after so here goes...... Does anyone know the weight per metre of rollcage tubing in the following ingredients: Blueband: 48x3.2mm CDS Clubman 500: 50.8 mmx 2.64mm & 44.45mm CDS T45: the equivalent of the above, not sure what diameter/wall thickness you would use for a main hoop (!) Thanks! Quote Link to comment Share on other sites More sharing options...
zim Posted June 23, 2010 Share Posted June 23, 2010 Give protection and performance a ring Quote Link to comment Share on other sites More sharing options...
moose Posted June 23, 2010 Share Posted June 23, 2010 Hi, I've tried the search feature but couldnt find what I was after so here goes...... Does anyone know the weight per metre of rollcage tubing in the following ingredients: Blueband: 48x3.2mm CDS Clubman 500: 50.8 mmx 2.64mm & 44.45mm CDS T45: the equivalent of the above, not sure what diameter/wall thickness you would use for a main hoop (!) Thanks! Not that iam an expert by any stretch but CDS and clubman 500 are different materials, weight wise between these two there will not be much difference, but clubman 500 has the higher strength. hope this helps... Quote Link to comment Share on other sites More sharing options...
Steve Hiatt Posted June 23, 2010 Share Posted June 23, 2010 T45 is of similar weight to CDS but the strength allows thinner tube. However if you want to reduce tube thickness from the Blue Book spec for MSA purposes you will need individual approval, as far as I remember this costs @ £450. Bear in mind that the welding process is also more involved. Quote Link to comment Share on other sites More sharing options...
landrover598 Posted June 23, 2010 Share Posted June 23, 2010 EN10255 blueband 48 x 3.2 is 3.57 kg/m, Redband 48 x 4.0 is 4.34 kg/m Quote Link to comment Share on other sites More sharing options...
bishbosh Posted June 23, 2010 Share Posted June 23, 2010 Steel weighs give or take 7850kg per cubic metre. Now go get your "O" level (GCSE?) maths books out and work out the volume per metre for each tube. Oh, and show all your working too... What? You want an example to follow? OK, so here goes: Blueband - 48 x 3.2 Using A = pi x r2where r = D/2 A = pi x (242 - (24 - 3.2)2 ) = 450mm2. For a metre length the volume of material = A x 1000mm = 450,000mm3. Steel density = 7,850kg/m3 and 1m3 = 1,000,000,000mm3 = 109mm3 So, the mass of the tube per metre = 7,850 x 450,000 / 109 = 3.53kg/m. Voila! Quote Link to comment Share on other sites More sharing options...
landrover598 Posted June 23, 2010 Share Posted June 23, 2010 So google I wasn't far off then Quote Link to comment Share on other sites More sharing options...
gibbon Posted June 23, 2010 Author Share Posted June 23, 2010 Steel weighs give or take 7850kg per cubic metre. Now go get your "O" level (GCSE?) maths books out and work out the volume per metre for each tube. Oh, and show all your working too... What? You want an example to follow? OK, so here goes: Blueband - 48 x 3.2 Using A = pi x r2where r = D/2 A = pi x (242 - (24 - 3.2)2 ) = 450mm2. For a metre length the volume of material = A x 1000mm = 450,000mm3. Steel density = 7,850kg/m3 and 1m3 = 1,000,000,000mm3 = 109mm3 So, the mass of the tube per metre = 7,850 x 450,000 / 109 = 3.53kg/m. Voila! Cheers! My calcs get it as 3.56 kg/m for blueband, must be a rounding error...... Any ideas on the equivalent tube section for a T45 main hoop? Quote Link to comment Share on other sites More sharing options...
gibbon Posted June 28, 2010 Author Share Posted June 28, 2010 Give protection and performance a ring Cheers, sorted, called Dan @ Protection and Performance, nice knowledgeable chap Blueband 48mm x 3.2mm = 3.56 kg/lm (roughly £6.50/lm) CDS: 50.8mm x 12 gage = 3.141 kg/lm (roughly £9/lm) CDS: 38mm = 2.309 kg/lm (roughly £9/lm) T45 50mm x 14 gage = 2.44 kg/lm (roughly £21/lm or £14/lm for a german equivalent all certed up) Jobs a good 'un then! Quote Link to comment Share on other sites More sharing options...
bishbosh Posted June 28, 2010 Share Posted June 28, 2010 Tut tut tut - where's your working....? Quote Link to comment Share on other sites More sharing options...
jbs Posted June 29, 2010 Share Posted June 29, 2010 Tut tut tut - where's your working....? With his finger to use the phone Quote Link to comment Share on other sites More sharing options...
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