Stainless Steel headers run too hot?
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TECH Fanatic
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From: Louisville, Ky
Stainless Steel headers run too hot? I was looking at the QTP and Thunder Racing headers and they are both stainless steel. SLP headers are stainless too but they are still ceramic coated. I'm just wondering if they are going to run hot under the hood. Thanks.
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Joined: Dec 2001
Posts: 45
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From: Redondo Beach
Re: Stainless Steel headers run too hot? Stainless Steel has better heat resistance.
Check this out:
SLP is made of 409 steel
QTP is made of 304 steel
http://www.azom.com/details.asp?articleID=969
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Grade
Why it might be chosen instead of 409
3CR12
Similar corrosion resistance, easier welding and more readily available than 409, particularly in heavy sections. (409 may have better drawability than 3CR12.)
304
Better corrosion resistance and heat resistance but at higher cost.
321
Higher heat resistance than 409 or 304.
Aluminised steel
Lower resistance to exhaust gases, but at lower cost than stainless steel grade 409.
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Thats why QTP is better then SLP.
Check this out:
SLP is made of 409 steel
QTP is made of 304 steel
http://www.azom.com/details.asp?articleID=969
--------------------------------------------------
Grade
Why it might be chosen instead of 409
3CR12
Similar corrosion resistance, easier welding and more readily available than 409, particularly in heavy sections. (409 may have better drawability than 3CR12.)
304
Better corrosion resistance and heat resistance but at higher cost.
321
Higher heat resistance than 409 or 304.
Aluminised steel
Lower resistance to exhaust gases, but at lower cost than stainless steel grade 409.
--------------------------------------------------
Thats why QTP is better then SLP.
