Ọdịiche dị n'etiti 316L na 304 igwe anaghị agba nchara
Ha abụọ316L na 304bụ igwe anaghị agba nchara austenitic a na-ejikarị na ụlọ ọrụ mmepụta ihe, ihe owuwu, ahụike na ngwa metụtara nri. Agbanyeghị, ha dị iche na nke ukwuuchemical mejupụtara, corrosion iguzogide, n'ibu Njirimara, na ngwa.
1. Ngwakọta kemịkalụ
304 igwe anaghị agba nchara: Nke mbụ mejupụtara18% chromium (Cr) na 8% nickel (Ni), nke mere e ji mara ya18-8 igwe anaghị agba nchara.
316L igwe anaghị agba nchara: Nwere16-18% chromium, 10-14% nickel, na mgbakwunye2-3% molybdenum (Mo), nke na-eme ka nguzogide corrosion ya dịkwuo elu.
Nke"L" na 316 lna-anọchi anyaobere carbon (≤0.03%), imeziwanye weldability ya na ibelata ihe ize ndụ nke corrosion intergranular.
2. Nguzogide corrosion
304 nwere ezigbo nguzogide corrosion, adabara maka gburugburu izugbe na ikpughe na acid oxidizing.
316L na-enye nguzogide corrosion dị elu, karịsịa nagburugburu chloride bara ụba(dị ka mmiri mmiri na ikuku nnu), ekele molybdenum, nke na-enyere aka iguzogidepitting na crevice corrosion.
3. Mechanical Properties & Workability
304 siri ike, na ike na-agafeghị oke, na-eme ka ọ dị mfe ịrụ ọrụ oyi, na-ehulata na weld.
316L dị ntakịrị obere ike mana karịa ductile, na obere carbon ọdịnaya na mmaweldability, na-eme ka ọ dị mma maka ngwa ebe ọgwụgwọ okpomọkụ post-weld agaghị ekwe omume.
4. Ntụnyere ọnụ ahịa
316L dị ọnụ karịa 304, tumadi n'ihi ọdịnaya nickel na molybdenum dị elu, nke na-abawanye ọnụ ahịa mmepụta.
5. Ngwa igodo
| Njirimara | 304 igwe anaghị agba nchara | 316L igwe anaghị agba nchara |
|---|---|---|
| Nguzogide corrosion | Nguzogide izugbe, kwesịrị ekwesị maka gburugburu kwa ụbọchị | Nguzogide corrosion kacha elu, dị mma maka gburugburu acidic, mmiri na chloride |
| Mechanical Ike | Ike dị elu, dị mfe iji rụọ ọrụ | Na-agbanwe agbanwe, magburu onwe ya maka ịgbado ọkụ |
| Ọnụ | Ọnụ ego karịa | Dị ọnụ karịa |
| Ejikarị | Ngwongwo, ngwa kichin, ihe ịchọ mma ụlọ | Ngwa ahụike, nhazi nri, akụrụngwa mmiri, pipeline chemical |
Mmechi
Ọ bụrụ na ngwa gị dị na agburugburu ebe obibi(dị ka ngwa kichin, ihe eji arụ ụlọ, ma ọ bụ ngwa ụlọ),304 bụ nhọrọ dị ọnụ ala. Agbanyeghị, makagburugburu na-emebi emebi nke ukwuu(dị ka mmiri mmiri, nhazi kemịkalụ, ma ọ bụ ọgwụ) ma ọ bụebe elu weldability chọrọ, 316L bụ nhọrọ kacha mma.
Oge nzipu: Mar-13-2025