347/347H igwe anaghị agba nchara

Alloy 347 bụ ihe ziri ezi, austenitic, chromium ígwè nwere columbium nke na-eburu n'uche njedebe nke mmiri ozuzo carbide, ya mere corrosion intergranular. Alloy 347 na-emeziwanye site na mmụba nke chromium na tantalum ma na-enye ihe mgbawa dị elu na nrụgide nrụgide karịa alloy 304 na 304L, nke nwekwara ike iji mee ihe maka ikpughe ebe mmetụta uche na corrosion intergranular na-echegbu onwe ya. Mgbasawanye nke columbium na-enyekwa ohere Alloy 347 ka nwere pụtara ìhè corrosion eguzogide, mma karịa alloy 321. Alloy 347H bụ elu carbon mejupụtara ụdị Alloy 347 na ngosi enwekwukwa elu okpomọkụ na creep Njirimara.
Njirimara

• Nrụgide dị elu na ihe mgbawa ma e jiri ya tụnyere 304
• Kwesịrị ekwesị maka ọrụ okpomọkụ dị elu
• Na-emeri mmetụta uche yana nchegbu corrosion intergranular
• Enwere ike iji ya na ngwa okpomọkụ dị elu
• N'ihi nkwụsi ike, ihe ahụ na-enye nguzogide corrosion ka mma ma e jiri ya tụnyere 304/304L.

• Nhazi kemịkalụ
• Akụrụngwa na-edozi nri na nchekwa
• Nkeji nnụcha mmanụ mmanụ catalytic, ọrụ polythionic acid
• Mmepụta ọgwụ
• Ndị na-eweghachite ihe mkpofu ọkụ

Alloy 347 igwe anaghị agba nchara na-egosiputa ezigbo nguzogide corrosion n'ozuzu nke yiri 304. Emepụtara ya maka ojiji na chromium carbide precipitation scope site 800 - 1500 ° F (427 - 816 ° C) ebe alloys na-enweghị isi dịka 304 nọ n'okpuru intergranular. mbuso agha. Na nke a okpomọkụ akporo, n'ozuzu corrosion iguzogide Alloy 347 igwe anaghị agba nchara efere dị mma karịa Alloy 321 igwe anaghị agba nchara efere. Alloy 347 na-arụkwa ọrụ dịtụ elu karịa Alloy 321 na ọnọdụ oxidizing siri ike ruo 1500°F (816°C). Enwere ike iji alloy mee ihe dịka akụkụ nke ngwọta nitric; ọtụtụ acid organic diluted na okpomọkụ na-agafeghị oke yana na phosphoric acid dị ọcha na obere okpomọkụ yana ihe ngwọta 10% diluted na okpomọkụ dị elu. Alloy 347 igwe anaghị agba nchara na-eguzogide nrụgide corrosion polythionic acid na ọrụ hydrocarbon. Enwere ike iji ya na chloride ma ọ bụ ihe ngwọta caustic na-enweghị fluoride na oke okpomọkụ. Alloy 347 igwe anaghị agba nchara adịghị arụ ọrụ nke ọma na ngwọta chloride, ọbụlagodi na obere mkpokọta, ma ọ bụ na sulfuric acid.