Even for stainless steel pipe, they have different standards which mean they would have different function too. Today, we would have a basic introduction for the different standard and description for stainless steel pipe. We can figure out that different standard would have different function for stainless steel pipe. If you need seamless and welded one, you may need the astm a312/a312m. If you need steel pipe for high temperature, astm a358/a358m maybe your better choice. If you need large diameter steel pipe, astm a409/a409m could be your consideration. More details you can have a view in the list. You can call us immediately if you have any trouble over the choosing of steel pipe.