Okwu Mmalite nke 17-4ph igwe anaghị agba nchara

17-4 igwe anaghị agba nchara (630) bụ chromium-ọla kọpa mmiri ozuzo siri ike igwe anaghị agba nchara ihe eji eme ngwa na-achọ ike dị elu na a agafeghị oke larịị nke corrosion iguzogide. Ike dị elu bụ
echekwabara na ihe dịka 600 degrees Fahrenheit (digiri 316
Celsius).

Njirimara izugbe

Alloy igwe anaghị agba nchara 17-4 PH bụ mmiri ozuzo siri ike martensitic igwe anaghị agba nchara yana mgbakwunye Cu na Nb / Cb. Ọkwa ahụ na-ejikọta ike dị elu, isi ike (ruo 572°F/300°C), na corrosion
iguzogide.

Data Chemistry

Carbon	0.07 kacha
Chromium	15-17.5
Ọla kọpa	3-5
Ígwè	Nhazi
Manganese	1 max
nikel	3-5
Niobium	0.15 - 0.45
Niobium+Tantalum	0.15 - 0.45
Phosphorus	0.04 kacha
Silikoni	1 max
sọlfọ	0.03 kacha

Nguzogide corrosion

Alloy 17-4 PH na-eguzogide ọgụ na-emebi emebi karịa nke ọ bụla n'ime ọkọlọtọ siri ike igwe anaghị agba nchara yana atụnyere Alloy 304 n'ọtụtụ mgbasa ozi.

Ọ bụrụ na enwere ihe egwu dị na mgbawa corrosion corrosion, okpomọkụ ịka nká dị elu ga-ahọrọ karịa 1022°F (550°C), ọkachamma 1094°F (590°C). 1022°F (550°C) bụ okpomọkụ kacha mma na mgbasa ozi chloride.

1094°F (590°C) bụ okpomọkụ kacha mma na mgbasa ozi H2S.

Alloy a na-enweta mgbawa mgbawa ma ọ bụ mbuso agha ma ọ bụrụ na ekpughere ya na mmiri mmiri na-akwụsịghị akwụsị ruo ogologo oge ọ bụla.

Ọ na-eguzogide corrosion na ụfọdụ kemịkalụ, mmanụ ala, akwụkwọ, mmiri ara ehi na ụlọ ọrụ nhazi nri (nke dabara na ọkwa 304L).

Ngwa

· Offshore (foils, helikopta oche ikpo okwu, wdg)Ụlọ ọrụ nri· Pulp na ụlọ ọrụ akwụkwọ· Aerospace (ụba turbine, wdg)· Ngwa akụrụngwa Okpukpo mkpofu nuklia

Ụkpụrụ

ASTM A693 ọkwa 630 (AMS 5604B) UNS S17400· EURONORM 1.4542 X5CrNiCuNb 16-4AFNOR Z5 CNU 17-4PH· DIN 1.4542