Spiralwalxaha kululaynta korontadaWaxay ka kooban yihiin wareegyo cylindrical ah oo ay sameeyeen hal ama laba fiilooyin iska caabin ah oo daawaha ku habboon iyadoo ku xiran codsiga.
Sifooyinkeeda ugu muhiimsan waxaa ka mid ah ku darida unugga kuleylka ee nikkel-chrome alloy element iyo xiisad caadi ah -230 V.
Codsiyada caadiga ah waa: qalajiyaasha warshadaha, kuleyliyaha hawada, shooladaha, iwm.
Intaa waxaa dheer, iyo marka loo eego silig aluminium ah oo ay ku jiraan, waxaan kala saari karnaa saddex nooc oo moodooyinka:

• Moodooyinka M, oo leh tayo 20-5 oo inta badan loogu talagalay shooladaha.
• Moodooyinka MS, oo leh 80-20 tayo leh oo waxtar u leh dhammaan codsiyada.
• Moodooyinka MC, oo leh tayo 20-5 oo loo isticmaalo quartz iyo tuubooyinka infrared.
• Sharaxaada Alaabta
  DarajoNi80Cr20, sidoo kale loo yaqaan Nikrothal 8,MWS-650,NiCrA,Tophet A,HAI-NiCr 80,Chromel AAlloy A, N8, Resistohm 80, Stablohm 650, Nichorme V, Nikrothal 80 iwm.Waxyaabaha Kiimikada ah (%)

  C	P	S	Mn	Si	Cr	Ni	Al	Fe	Mid kale
  Max
  0.03	0.02	0.015	0.60	0.75 ~ 1.60	20.0-23.0	Bal.	ugu badnaan 0.50	ugu badnaan 1.0	-

  Qalabka makaanikada ee siliga nichrome

  Heerkulka Adeegga Joogtada ah ee ugu badan:	1200ºC
  Resistance 20ºC:	1.09 ohm mm2/m
  Cufnaanta:	8.4 g/cm3
  Habdhaqanka Kulaylka:	60.3 KJ/m·h·ºC
  Isku-dhafka Balaadhinta kulaylka:	18 α×10-6/ºC
  Meesha dhalaalaysa:	1400ºC
  Dheeraynta:	Ugu yaraan 20%
  Qaab-dhismeedka Micrographic:	Austenite
  Hanti Magnet:	aan magnetic

  Qodobbada Heerkulka ee Cadaadiska Korontada

  20ºC	100ºC	200ºC	300ºC	400ºC	500ºC	600ºC
  1	1.006	1.012	1.018	1.025	1.026	1.018
  700ºC	800ºC	900ºC	1000ºC	1100ºC	1200ºC	1300ºC
  1.01	1.008	1.01	1.014	1.021	1.025	-

  Cabbirka joogtada ah ee siliga daawaha ee Nickel:

  Waxaan ku siin alaabta qaab silig, silig flat, strip.Waxaan sidoo kale samayn kartaa wax gaar ah sida ay codsiyada useris.

  Silig dhalaalaya iyo caddaan -0.025mm ~ 3mm

  Silig-qaadista: 1.8mm ~ 10mm

  Silig Oxidized: 0.6mm ~ 10mm

  Silig siman: dhumucdiisuna tahay 0.05mm ~ 1.0mm, ballac 0.5mm ~ 5.0mm