Hold on ....im not sure i agree with the comments about charcoal grates ss not having value.
If you are spending the money for ss cook grates. Having ss charcoal grates offer the same long term investment value.
We know that the steel charcoal grates will warp and bow downwards after 1-2 years of usage...and then rust/thin out.
Ss is more heat resistant than steel related to retaining tensile strength (@ high temps)...so the ss grates SHOULD be more resistant to warping..helping you to maintain the height of you baskets to your cook grates...
So why are ss charcoal grates being so readily dismissed here...ive been looking for ss charcoal grates and will probably buy 2 sets of these....
If you personally dont want to make the investment for ss charcoal grates..thats one thing but i think theres misinformation being shared here that steel grates are superior in tensile strength (at higher temps) related to steel, which is the primary reason why the steel grates bow at such low temps...bowing at 500-600 degrees kettle temps is pretty dismal tensile strength performance.
Steel is rated to lose tensile strength at a much lower temp than ss...how is steel superior to ss for charcoal grates?
Steel is superior because it's cheaper. At the charcoal grate temps will be much higher than at the cooking grate. At the charcoal grate your temps are probably around 1200 or more. There the extra nickel & chromium content won't matter much. It will deform & it will rust. It will last a bit longer, but it is not economically worthwhile.
As someone who works in the steel industry, I can make stainless rust in 20 minutes.
If you want to spend the extra for stainless charcoal grates...go for it. If you believe its better, there's no facts I can present against it, that in this situation it isn't needed.