Bandit- I can't give you and informed answer but my opinion says you should be alright as long as they don't get near any heat. I try and stay with stainless due to weather issues and my lust over it but black pipe is the way to go.
Someone in the know please chime in.
Slappin that bass like some delerious funky preist!!!
UDS, Half Pint (Mini UDS), Weber, ProQ 20, Kegrilla
*250 gallon cooker- 'The Meat Beast!!'*
British BBQ Championships
Grand Champion 2008
British BBQ Society - Southern Championship
Grand Champions 2009