Dade a ɛnyɛ den a wɔde fa nsu mu no yɛ paipu bi a wɔde dade a ɛnyɛ den ayɛ, ade a wonim sɛ ɛko tia nsɛe, ahoɔden a ɛkorɔn, ne nneɛma a ɛho tew a ɛnyɛ den. Wɔde saa nsu afiri yi di dwuma kɛse wɔ nnwuma ahorow mu, a nea ɛka ho ne adansi, nnuru, aduan, ne nnuru.
Nneɛma ahorow a ɛyɛ dade a ɛnyɛ den a wɔde fa nsu mu .
Wobetumi akyekyɛ dade paipu a ɛnyɛ den mu akuwakuw a egyina wɔn nneɛma a wɔahyehyɛ so:
Austenitic stainless steel pipes: Saa pipes yi wɔ chromium ne nickel, na ɛma corrosion resistance a ɛkyɛn so, ductility, ne formability. Wɔtaa de di dwuma wɔ aduan, nnuru, ne nnuruyɛ mu.
Mfaso a ɛwɔ so:
Nneɛma a ɛko tia corrosion a ɛkorɔn .
Ductility pa ne formability .
Weldability a eye kyɛn so .
Nneɛma a enye: .
Sɛ wode toto dade ahorow afoforo a ɛnyɛ den ho a, ɛho ka kɔ soro .
Sɛnea ɛyɛ mmerɛw sɛ wobenya intergranular corrosion wɔ chloride solutions mu no .
Nneɛma a wɔtaa de yɛ:
304: Austenitic stainless steel a wɔde di dwuma kɛse, a ɛma wonya agyapade a ɛkari pɛ .
316: chloride nsɛe a ɛkɔ soro, a ɛfata ma po mu nsu a wɔde di dwuma .
301: ɛka a wɔbɔ no sua, nanso ɛwɔ corrosion resistance a ɛba fam kakra .
Ferritic stainless steel pipes: Saa nsuo afiri yi wɔ chromium na wonim sɛ ɛho ka sua sɛ wɔde toto austenitic ahodoɔ ho a. Nanso, mpɛn pii no, wɔn corrosion resistance no ba fam. Wɔde di dwuma titiriw wɔ adansi ne nneɛma a wɔde siesie fie mu.
Mfaso a ɛwɔ so:
Sɛ wode toto austenitic stainless steel ho a, ɛho ka sua .
magnetic properties, a ɛma ɛyɛ mmerɛw sɛ wobehu .
Nneɛma a enye: .
Nneɛma a ɛko tia corrosion a ɛba fam, titiriw wɔ mmeae a acid wom .
Ahoɔden a ɛso tew bere a wɔde toto austenitic stainless steel ho no .
Nneɛma a wɔtaa de yɛ:
430: ferritic stainless steel a wɔtaa de di dwuma, a ɛma wonya ɔkwan a ɛho ka sua .
409: oxidation resistance a ɛkɔ soro, a ɛfata ma nneɛma a ɛyɛ hyew kɛse te sɛ kar mu mframa a wɔtwe fi mu .
Martensitic stainless steel pipes: Saa nsuo afiri yi wɔ chromium ne carbon, na ɛda ahoɔden ne den a ɛkorɔn adi. Nanso, mpɛn pii no, wɔn corrosion resistance no sua. Wɔde di dwuma titiriw ma nnwinnade a wɔde yɛ nneɛma ne nneɛma a wɔde yɛ adwuma.
Mfaso a ɛwɔ so:
Ahoɔden ne den a ɛkorɔn, a ɛma ɛyɛ papa sɛ ɛbɛko atia ɔbrɛ ne nkɛntɛnso a ɛwɔ so .
Ɔhyew a ɛkɔ soro a wɔko tia no yiye .
Nneɛma a enye: .
Sɛ wɔde toto austenitic ne ferritic ahorow ho a, ɛnyɛ papa .
ductility a ɛba fam, a ɛma ɛyɛ den kɛse .
Nneɛma a wɔtaa de yɛ:
420: Martensitic dade a ɛnyɛ den a wɔtaa de di dwuma, a ɛma ahoɔden ne den kari pɛ .
440: Ahoɔden ne den a ɛkorɔn, a ɛfata ma nnwinnade ne nneɛma a ɛyɛ pɛpɛɛpɛ a wɔyɛ .
Duplex stainless steel pipes: Saa pipes yi de mfaso a ɛwɔ austenitic ne martensitic stainless steel so no bom, na ɛma corrosion resistance pa ne ahoɔden nyinaa. Wɔtaa de di dwuma wɔ ngo ne gas adwuma mu.
Mfaso a ɛwɔ so:
Sɛ wɔde toto austenitic stainless steel ho a, ɛyɛ corrosion resistance a ɛkorɔn, titiriw wɔ chloride solutions mu .
Ahoɔden a ɛkorɔn sen austenitic stainless steel, a ɛma ɛyɛ yiye sɛ ɛbɛhyew ne nkɛntɛnso a ɛwɔ so .
Nneɛma a enye: .
Sɛ wode toto austenitic ne ferritic stainless steel ho a, ɛho ka yɛ den.
Ɛyɛ den kɛse sɛ wɔbɛyɛ, na ɛhwehwɛ sɛ wɔyɛ nnwinnade ne akwan titiriw bi .
Nneɛma a wɔtaa de yɛ:
21cr-6ni: dade a ɛnyɛ den a ɛyɛ abien a ɛtaa ba, a ɛma wonya agyapade a ɛkari pɛ .
22CR-8NI: chloride nsɛe a ɛkɔ soro, a ɛfata ma po mu nsu a wɔde di dwuma .
Nickel-alloy pipes: Wɔde nikel-based alloys na ɛyɛ saa pipes yi, na ɛma corrosion resistance soronko ne tumi a ɛma wotumi gyina mmeae a ɛyɛ den ano. Wɔtaa de di dwuma wɔ ahunmu, po so, ne nuklea ahoɔden mu.
Mfaso a ɛwɔ so:
corrosion resistance a ano yɛ den, a etumi gyina mmeae ahorow a ɛyɛ basabasa ano .
Ahoɔden a ɛkyɛn so ne ɔhyew a ɛkorɔn a ɛko tia .
Nneɛma a enye: .
Sɛ wode toto dade ahorow afoforo a ɛnyɛ den ho a, ɛho ka yɛ den yiye.
Nneɛma a wɔyɛ no yiye a ɛyɛ den, a ɛhwehwɛ nnwinnade titiriw ne nimdeɛ .
Nneɛma a wɔtaa de yɛ:
Hastelloy C-276: Wɔde di dwuma kɛse wɔ ne nsɛe a ɛtrɛw no ho .
Inconel 625: Ahoɔden a ɛkorɔn ne nea ɛko tia nneɛma a atwa yɛn ho ahyia a ɛyɛ hu .
Monel 400: Po mu nsu ne chloride ano aduru a ɛyɛ den yiye .
