rugby players are poshAustraliaNew ZealandSouth AfricaEvery other rugby country laughs <| sep |> There are a number of ways you can estimate the properties of an unknown piece of steel . The most common is a spark testSparktesting 2 . pngimgrefurlh 248 w 400 tbnidkLgUwiEYrfvcMvet 1 tbnh 114 tbnw 184 docid 4 IkwaA 9 T 0 R 0 PrMclientfirefoxbusgs 15 I 4 v TKXYJDZnsJTkSgqKTSEsaXved 0 ahUKEwjc 3 ZTYs 8 LQAhVMRY 8 KHdn 9 CjsQ 9 QEINjAA . Generally you can apply some common sense to guess what type of steel would have been used for a given application . Think about the properties a steel barge would need it would need to be durable , flexible , and resistant to rust . A machete needs different properties entirely it needs to be tough , springy , and hardenable . With this in mind , I would not put money on that bit of steel being suitable for making a decent machete . Also looking at the dimensions , 12 thickness is ridiculous even for a machete blade , and it means you ' ll have to grind away a huge amount of steel . Quality blade steel is not expensive . Get yourself some O 1 , D 2 or 1085 from a steel supplier , and save yourself a lot of grief . Don ' t waste your time on mystery steel .