ASTM A815 Spection inovhara makirasi maviri, WP uye yakagadzirwa-serritic, fanticic, /Austenitic, uye martensitiki simbi masimbi ekuvaka asina kusungwa uye akasungwa. Kirasi WP Fittings yakakundwa mune mana subclasses: Makirasi WP-S, WP-W, WP-WX, uye WP-WU. Izvo zvinyorwa zvezvakakodzera zvinofanirwa kukanganwira, mabara, mahwendefa, kana asina maseya kana akabatikana tubular zvigadzirwa.
TEEL indasitiri yakura mumakumi mashoma apfuura uye kune akasiyana-siyana zvigadzirwa zvinowanikwa mumusika. ASTM A815 UNS S32750 PIPE Fitting ndeimwe yezvinhu izvo zvigadzirwa uye zviripo mumhando dzakasiyana-siyana, maumbirwo, uye zviyero. ASTM A815 UND S32760 PIPE Fitting yakagadzirirwa kuve inodzivirira kuCorroson uye vanonzi vane zvakakwana zvachose. Aya Super Duplex S32750 Buttweld Fittings anodzivisa kupokana kuora uye kupera simba. Ivo vane microcenture yakasanganiswa ye50% Austenitic uye 50% ferrite.