Ingxubevange 20 Steel engatyiwa

I-alloy 20 (UNS N08020) yi austenitic, i-nickel-iron-chromium esekwe super alloy kunye nezongezo zeCopper kunye ne-Molybdenum ezinikezela ukuchasana neendawo ezinobutshaba, i-pitting, kunye ne-corrosion crevice. Ikwazinzisiwe kunye ne-Columbium ukunciphisa imvula ye-carbide ngexesha le-welding. I-alloy 20 ibonakala iwela phakathi kweendidi ezingenasici kunye ne-nickel njengoko iqulethe iimpawu zazo zombini. Yayiyilelwe ukuxhathisa okuphezulu kuhlaselo lwe-asidi kwaye ibonisa ukuxhathisa okuphezulu kuxinzelelo-ukuqhekeka kwe-corrosion ekubiliseni i-20% ukuya kwi-40% ye-asidi ye-sulfuric, kwaye inokumelana ne-corrosion jikelele egqwesileyo kwi-asidi ye-sulfuric kunye noxinzelelo lwe-chloride yokuqhekeka kwe-corrosion. I-alloy 20 ineempawu zoomatshini ezilungileyo kuzo zombini iindawo kunye namaqondo obushushu aphakamileyo, ukuya kuthi ga kwi-930°F (500°C) kwaye yenziwe lula ngeenkqubo zesiqhelo zemizi-mveliso.

Iinkcukacha

	Umgangatho	Ingxubevange 20
1	UNS	N08020
2	Werkstoff Nr.	2.4660

Iinkcazelo ngeMichiza:

UHLOBO	C	Cr	Cu	Fe	Mnu	Mo	Ni	P	Si	S	Nb (Cb)
Ingxubevange 20 UNS N08020	0.07 max	umz: 19.00 ubuninzi: 21.00	umz: 3.00 ubuninzi: 4.00	Ibhalansi	2.00 max	umz: 2.00 ubuninzi: 3.00	umz: 32.00 ubuninzi: 38.00	0.045 max	1.00 max	0.035 max	8 XC imiz 1.00 ubuninzi

Iinkcazelo ngoomatshini:

Imeko eZinzileyo
Ifom yeMveliso	Ukuqina Amandla, ksi (min)	Yima kancinci Amandla, 0.2% offset ksi (min)	Elongation % (min)	Ukuncitshiswa kweNdawo % (imiz)	Ukuqina Brinell (max)	Ukuqina Rockwell B (max)
Icwecwe, iPhepha	80	35	30	-	217	95
Ibha	80	35	30	50	-	-

Ukuxinana	8.1 g/cm3
Indawo yokunyibilika	1443 °C (2430 °F)

Iimbonakalo

• Umhlwa ophezulu, ukugoba kunye nokuxhathisa kwimingxuma
• Iqulethe iNiobium yozinziso ngokuchasene novelwano kunye nesiphumo sokubola kwe-intergranular
• Iipropati ezigqwesileyo zoomatshini kunye nokwenziwa
• Ubuncinci bemvula ye-carbide ngexesha le-welding

Usetyenziso
Ngenxa yokumelana nokugqwesa, i-alloy 20 isetyenziselwa ukusetyenzwa kweekhemikhali, ukuveliswa kokutya, amayeza, ukuveliswa kwamandla kunye nezicelo zeplastiki. Iivalvu, iimpompo kunye neenkqubo zoxinzelelo zezinye zezona zixhobo zidumileyo apho i-Alloy 20 iqeshwe khona.