The stuff I want to try is around $400 without the middle man, maybe a lot more now that I look at it again.
I'd want the full house stuff "Cobra" but in 3/8 "Sabertooth" because full house matches the TPI and blade speed of a carbide steel cutting saw. I'd also like to experiment with the regular Sabertooth because 36" of full house chain would be super slow, not that a carbide metal saw isn't slow anyway cutting 3" of metal.
The Cobra carbide chain outcuts and outperforms other chains while cutting harder materials; metal roofing/siding, multi-layered roofing, rollup doors, etc.
www.carbidechain.com
According to my comparison below, the full house chain should be able to cut through lots and lots of solid steel since its properties that gauge cutting aggressiveness match.
For metal cutting, 14" cold cut saw (one blade = 20 abrasive wheels)
tooth speed: 75-100ft/s
TPI for steel: 1.5-1.65
Chainsaw 3/8 chain speed 7t rim: 96ft/s @ 13,160rpm, 69ft/s @ 9500rpm
Chainsaw FH 3/8 TPI: 1.5