This electrically insulated 25 gauge chrome wire can be wound closed or open spaced. Max.temp 594 degree. The wire is approx. 1mm in diameter and has a resistivity of 2.1ohms/foot at 20 degree C; maximum ampere rating in open air at 594 degree is 3.7amps. The amperes are dated when enclosed and tightly wound; typical for 316 degree C operation is 2.5 amps.