Dear Sir or Madam, We need some alloy steel pipe, and you can find details as follows: 1) Name: Alloy steel pipe 2) Material: Alloy Steel 3) Size: Length 30m; Thickness 10mm; Inner diameter 1.5m 4) It can work normally under 1400 centigrade 5) The picture shows the inside of the pipe. Please contact me, if your product can fill the bill. Best regrades, Wendy. Show More