How to calculate the weight of steel 90 Degree LR Elbow?

How to calculate the weight of steel 90 Degree LR Elbow?

As you know, sometimes when we quote the price, we need to know the approximate weight of the goods, as more, when we need to calculate the freight charge of the goods, we also need the approximate weight.
 

Then How to calculate the approximate weight of stainless steel 90 degree LR elbow easily and quickly?
 

There is a formula to get it. You can see it as follows:

For 316L materail stainless steel elbow: Weight=(OD-WT)*WT*OD/1000*0.02507*2.3kgs

Take 219*3.76 316L 90 LR Elbow for a example:

(219-3.76)*3.76*219/1000*0.02507*2.3=10.22kgs
 

For 304L materail stainless steel elbow: Weight=(OD-WT)*WT*OD/1000*0.02491*2.3kgs

Take 219*3.76 304L 90 LR Elbow for a example:

(219-3.76)*3.76*219/1000*0.02491*2.3=10.15kgs
 

If you still don't get it well, feel free to contact me freely, I'll be glad to help.