304 vs 316 Stainless Steel: Nneɛma a Wɔahyehyɛ, Nneɛma a Ɛporɔw, ne Nea Wɔpaw

info-813-502

Nsonsonoe Bɛn na Ɛwɔ 304 ne 316 Stainless Steel ntam?

304 ne 316 dade a ɛnyɛ den nyinaa yɛ austenitic stainless grades, nanso ɛnyɛ nea wotumi sesa bere a ɔsom tebea no abɛyɛ nea ɛhwehwɛ pii no. Mfiridwuma mu nsonsonoeɛ a ɛho hia paa ne nea wɔahyehyɛ: gyinapɛn 304 yɛ chromium-nickel dadeɛ a ɛnyɛ den, berɛ a 316 de bɛyɛ 2–3% molybdenum ka ho na ɛtaa kura nickel dodoɔ a ɛkorɔn. Saa molybdenum a wɔde ka ho no ne ade titiriw nti a 316 taa ma ahoɔden a eye ma pitting ne crevice corrosion wɔ chloride-bearing mmeae te sɛ mpoano mframa, nkyene efĩ, nnuru a wɔhohoro, ne process services binom. Nea ɛne eyi bɔ abira no, 304 ne atirimpɔw a wɔtaa de di dwuma wɔ ɔkwan a ɛkɔ akyiri so ma mfiri a ɛwɔ dan mu, wim tebea a ɛnyɛ den, ne afã horow a wɔayɛ a chloride a wɔde hyɛ mu no sua.

Enti nsonsonoe a ɛda dade a ɛnyɛ den 304 ne 316 ntam no nyɛ ahoɔden anaa sɛnea ɛte ho asɛm titiriw. Wɔ standard annealed tebea mu no, wɔn mfitiase mfiri dodow no bɛn kakra, na wɔde abien no nyinaa di dwuma kɛse ma krataa, mprɛte, tube, paipu, fittings, tank, ne fabricated nnwinnade. Ntetewmu ankasa ne corrosion margin. Sɛ ɔsom no yɛ dry, clean, na ɛnyɛ-aggressive a, 304 taa dɔɔso. Sɛ ɔfasuo no bɛhunu chloride, ɛpo mu-abɛn a ɛda adi, anaa nnuru a wɔde tew nneɛma ho a ɛyɛ den a, 316 taa ma nneɛma nnyinasoɔ a wɔtumi de ho to so kɛseɛ. Ɛno ne nsonsonoe a mfaso wɔ so a ɛda dade a ɛnyɛ den 304 ne 316 ntam wɔ mfiridwuma mu dwumadie mu.

Nneɛma a Wɔakyekyɛ mu 304 ne 316 Stainless Steel

304 ne 316 yɛ nea ɛwɔ300-series austenitic dade a ɛnyɛ denekuo. Enti ntotoho no nyɛ nneɛma akuw abien a ɛsono emu biara koraa ntam, na mmom ɛwɔ chromium-nickel dade a ɛnyɛ den abien a ɛne wɔn ho wɔn ho di nsɛ kɛse a ɛwɔ sɛnea wɔyɛ ne weld suban a ɛte saa ara, nanso ɛsono sɛnea wɔyɛ nsɛe bere a chloride ne nneɛma a atwa yɛn ho ahyia a emu yɛ den ahyɛ mfonini no mu pɛn no.

Saa nkyekyɛmu yi nso fata wɔ afiri a wɔde yɛ nneɛma a wɔtaa yɛ no nyinaa mu, a nea ɛka ho nedade a ɛnyɛ den a wɔde yɛ coil, krataa, mprɛte, paipu, ne tube. Wɔ coil dwumadie mu no, wɔbɛtumi de 304 ne 316 nyinaa ama ama wɔayɛ, ayɛ, na wɔayɛ wɔ nsuo ase, nanso ɛnsɛ sɛ wɔfa no sɛ wɔsesa wɔn ho wɔn ho berɛ a ɔsom tebea no de chloride-a ɛwɔ nsuo, nkyene a ɛwɔ mu, anaa nnuru a ɛyɛ den kɛseɛ aba no.

Sɛ yɛhwɛ mfiridwuma mu a, eyi nti na wɔtaa de dade a ɛnyɛ den 304 ne 316 toto ho wɔ nnwuma koro no ara mu no. Wɔn baanu nyinaa betumi ama akwan koro no ara a wɔfa so yɛ nneɛma no pii abotɔyam, nanso wɔnyɛ wɔn ade pɛpɛɛpɛ wɔ ɔsom tebea koro no ara ho.

304 and 316 stainless steel comparison stainless steel coil

Nsonsonoe a Ɛda Nneɛma a Wɔahyehyɛ no Mu Wɔ 304 ne 316 Stainless Steel ntam

304 ne 316 Stainless Steel nnuru a ɛda ntam no yɛ tẽẽ. Wɔakyekye gyinapɛn 304 no atwa chromium ne nickel ho ahyia. Standard 316 de nnyinaso a ɛte saa ara di dwuma, nanso ɛde molybdenum ka ho na ɛtaa kura nikel a ɛkorɔn. Ɛno ne ade titiriw nti a wɔtaa paw 316 bere a chloride a wɔko tia no ho hia kɛse no.

Adeɛ	304 dade a ɛnyɛ den	316 dade a ɛnyɛ den	Mfiridwuma mu akenkan
Abasobɔde a wɔtaa de di dwuma	Ɔkwan a wɔfa so yɛ 304	Ɔkwan a wɔfa so yɛ 316	Wɔn baanu nyinaa yɛ standard austenitic stainless dade a ɛwɔ 300 series no mu.
UNS / EN din a wɔde frɛ no	S30400 / 1.4301	S31600 / 1.4401	Mfaso wɔ so bere a ɛho hia sɛ asɛm no hwɛ mfiridwuma ho nimdeɛ kɛse na ɛnyɛ nea ɛfa adetɔfo- ho kɛse.
Chromium (Cr) a wɔde yɛ nneɛma .	18.0–20.0%	16.0–18.0%	Grade abien no nyinaa gyina chromium so ma passive-film formation ne mfitiase stainless suban.
Nikel (Ni) .	8.0–10.5%	10.0–14.0%	316 taa kura nikel a ɛkorɔn sen biara.
Nneɛma a wɔfrɛ no Molybdenum (Mo) .	-	2.0–3.0%	Eyi ne nnuruyɛ mu nkɔso titiriw wɔ 316 mu ne ade titiriw nti a ɛyɛ adwuma yiye wɔ mmeae a chloride-wɔ mu.
Carbon (a ɛsen biara) .	0.08%	0.08%	Abasobɔde a wɔde ma a wɔahyɛ da ayɛ; wɔtaa paw low-carbon L grades wɔ baabi a welding ne intergranular corrosion control ho hia kɛse.
Manganese (a ɛsen biara) .	2.00%	2.00%	Anohyeto a ɛte saa ara a wɔde gyina so wɔ nnuruyɛ a wɔde di dwuma daa mu.
Silicon (a ɛsen biara) .	0.75–1.00%*	0.75–1.00%*	Dwuma ketewaa bi a wɔde afrafra; anohyeto no gu ahorow kakra a egyina nkyerɛkyerɛmu a wɔde di dwuma so.
Phosphorus (a ɛsen biara) .	0.045%	0.045%	Efĩ anohyeto a ɛte saa ara.
Sulfur (a ɛsen biara) .	0.030%	0.030%	Efĩ anohyeto a ɛte saa ara.
Nitrogen (a ɛsen biara) .	0.10%	0.10%	Anohyeto a ɛte saa ara a ɛyɛ gyinapɛn, ɛwom sɛ nitrogen-nsakrae ahorow wɔ hɔ wɔ ntotoho titiriw no akyi de.
Main composition-gyina nsonsonoeɛ so	Cr-Ni dade a ɛnyɛ den	Cr-Ni-Mo dade a ɛnyɛ den	Nsonsonoe a ɛwɔ 304 ne 316 dade a ɛnyɛ den mu no yɛ amolybdenum-driven corrosion nsonsonoe, ɛnyɛ mfiridwuma-adesuakuw nsonsonoe kɛse.

Download:Nsonsonoe a Ɛwɔ 304 ne 316 Stainless Steel ntam wɔ nneɛma a wɔahyehyɛ mu

Saa pon yi kyerɛkyerɛ nea enti a... 304 ne 316 dade a ɛnyɛ den nsonsonoeno, wɔtaa ka ho asɛm sɛ ahoɔden a wɔma ɛkɔ soro kan. Ɛyɛ chemistry-driven corrosion upgrade.

Corrosion resistance ne ade titiriw a ɛma wɔtetew mu

Wɔ nneɛma a wɔde si hɔ ankasa pii mu no, ɛnyɛ asɛmmisa no ne sɛ ebia nneɛma abien no nyinaa yɛ nea nkekae nni mu, na mmom sɛ ebia chloride a ɛdɔɔso wɔ nneɛma a atwa yɛn ho ahyia no mu a ɛbɛma 304 ayɛ nea wontumi mfa ho nto so kɛse bere kɔ so no. Chlorides ne beae a 304 ne 316 dade a ɛnyɛ den a wɔde toto ho no bɛyɛ aniberesɛm kɛse. Nkyene a wɔde petepete, ɛpo mu mframa, nkyene a wɔde yi nsukyenee, chlorine-a wɔde tew nneɛma ho, ne nnuru bi a wɔde yɛ adwuma betumi apia 304 akɔ staining, pitting, anaa crevice corrosion mu ntɛm sen 316.

316 nyɛ nea ɛnyɛ nea ɛbɛsɛe esiane sɛ molybdenum wɔ mu nti. Ɛda so ara wɔ anohyeto ahorow. Nanso wɔ chloride-bearing service ho no, mpɛn pii no ɛma adwumayɛ kwan a ɛtrɛw sen 304.

Ɔsom tebea	304 dade a ɛnyɛ den	316 dade a ɛnyɛ den	Mfiridwuma ho akenkan a ɛkɔ akyiri
Wim tebea a ɛyɛ kusuu wɔ dan mu	Mpɛn pii no, ɛfata	Afei nso ɛfata	Wɔ dan mu adwuma a ɛyɛ dry a efĩ kakraa bi na ɛwɔ mu na chloride-bearing deposits biara nni mu mu no, mfaso a ɛwɔ corrosion so a ɛwɔ 316 so no ntaa nyɛ nea ɛyɛ gyinaesi. Ebia nneɛma a wɔde wie, sɛnea wɔtew ho, ne sɛnea wɔyɛ no yiye no ho hia kɛse sen nsakrae a ɛba wɔ grade mu no ankasa.
Abɔnten so tebea a ɛyɛ mmerɛw a nkyene nni hɔ	Mpɛn pii no, ɛfata	Afei nso ɛfata	Wɔ abɔnten so som a nkyene a ano yɛ den nni mu no, ebia grade abien no nyinaa bɛyɛ adwuma yiye, nanso tii a ɛyɛ fĩ, efĩ a ɛwɔ soro, nsu a ɛtwetwe, ne tebea a wɔde wie no da so ara nya sɛnea ɛte ne bere tenten-dwumayɛ so nkɛntɛnso.
Mpoano wim tebea / po mu-a ɛbɛn a ɛda adi	Ɛtaa yɛ staining ne pitting kɛse	Mpɛn pii no, wɔpɛ	Wɔ po mu mframa mu no, wɔtaa paw 316 efisɛ molybdenum a wɔde ka ho no ma ahoɔden a wɔde ko tia chloride-driven pitting and crevice corrosion. 304 no tu mpɔn, wobetumi akɔ so de adi dwuma wɔ mpoano tebea horow bi a ɛnyɛ den mu, nanso margin no yɛ teateaa na ne siesie bɛyɛ nea ɛho hia kɛse.
Tap nsu ho adwumayɛbea	Mpɛn pii no, wogye tom a egyina nsu pa so	Mpɛn pii no, ɛma abodwokyɛre kɛse	ASSDA hyɛ no nsow sɛ 316 yɛ adwuma yiye wɔ tap nsu a ɛwɔ ase bɛyɛChlorides 250 ppm na ɛyɛ adwuma. Ɛno mma 304 mfata ara kwa, nanso ɛkyerɛ nea enti a wɔtaa ani gye 316 ho bere a chloride dodow kɔ soro anaasɛ ɔsom mu ahotoso ho ahwehwɛde ahorow no mu yɛ den no.
Neutral aqueous service wɔ ambient temperature, a mpaapaemu biara nni mu	Ebia wɔde bedi dwuma akosi bɛyɛChlorides 200 ppm na ɛyɛ adwuma	Ebia wɔde bedi dwuma akosi bɛyɛ1000 ppm chloride a ɛyɛ den	ASSDA akwankyerɛ a ɛfa immered neutral service ho no de paw line a ɛkyerɛ sɛ:304/304L bɛyɛ 200 ppm chlorides, 316/316L bɛyɛ 1000 ppm chlorides. Eyinom nyɛ amansan nyinaa nhyehyɛe anohyeto ahorow; mpaapaemu, nneɛma a ɛwɔ hɔ, ɔhyew, ne pH betumi atew abodwokyɛre so.
Nsu fĩ / nsuo a ɛba fam-kɔsi-chloride nsuo a ɛkɔ fam	Marginal wɔ bɛyɛ200–1000 mg/L chloride a ɛyɛ dengyina tebea horow so	Mpɛn pii no, wɔpɛ wɔ ɔkwan koro no ara so	World Stainless ka sɛ Type 304 betumi ayɛ nkutooa ɛma abotɔyam kakrawɔ bɛyɛ sɛ200–1000 mg/L chloride na ɛyɛ adwumarange, bere a Type 316 ne nea wɔpɛ wɔ hɔ. Eyi yɛ nea enti a mpaapaemu ne tebea horow a egyina hɔ ho hia te sɛ nea wɔde di dwuma wɔ din mu no ho nhwɛso pa.
Chloride-bearing washdown / aduan anaa adeyɛ a wɔde tew ho	Ebia ɛbɛyɛ nea anohyeto wom a egyina chloride dodow, bere a wɔde di nkitaho, ne dry-down residues so	Mpɛn pii no, ɛyɛ nea ɛko tia kɛse	Sɛ wɔhohoro mpɛn pii a, ɛnyɛ nnuru a ɛho tew nko na nsakrae a ɛho hia no yɛ na mmom nea ɛwɔ mu, ɔhyew, ahohoro su, ne sɛ ebia chlorides da so ara wɔ soro bere a wɔayow akyi. 316 taa ma adwumayɛ kwan a ɛtrɛw nso.
Acid chloride media / adeyɛ a ɛyɛ basabasa kɛse	Mpɛn pii no ɛnyɛ nea ɛfata anaasɛ anohyeto kɛse	Eye sen 304 wɔ nsɛm bi mu, nanso ɛda so ara yɛ medium-specific	Wɔ acidic anaa neutral chloride solutions mu no, pitting ne crevice corrosion ne ade titiriw a ɛhaw adwene. Outokumpu hyɛ no nsow sɛ chromium, molybdenum, ne nitrogen a ɛkɔ soro no ma ahoɔden a ɛko tia no tu mpɔn, nanso 316 mpo wɔ anohyeto ahorow a ɛda adi pefee wɔ chloride-acid som a emu yɛ den mu.

Wɔ afifide adwuma, aduan a wɔyɛ, utility skids, enclosures, ne fabricated assemblies ho no, eyi taa yɛ ɔfã a ɛho hia kɛse. Nnuru din ahorow no ho nhia pii te sɛ nea ɔfasu no behu ankasa wɔ ɔsom mu.

stainless steel 304 and 316 stainless steel

Mfiridwuma mu Nneɛma a Wɔde Toto 304 ne 316 Stainless Steel ho

Sɛ yɛhwɛ mfiridwuma-agyapade gyinabea a, .304ne316bɛn sen sɛnea ntotoho pii a wɔayɛ no mmerɛw kyerɛ no.Wɔ flat-rolled product specifications a wɔtaa ka ho asɛm ase no, grade abien no nyinaa kyɛ a ɛba fam koraaahoɔden a wɔde twetwe nneɛma, ma ahoɔden, netenten a wɔde yɛ adewɔ annealed tebea mu. Ɛno nti na ɛnyɛ dan-ɔhyeɛ ahoɔden na ɛdi kan na ɛma grade gyinaesie wɔ dwumadie pii mu, na mmom ɛnam corrosion environment, fabrication kwan, ne service medium so. Wɔ grade nkrataa a World Stainless / Atlas abɔ no mua ase ama ASTM A240/A240M flat-rolled product, abien no nyinaa304ne316wɔakyerɛw wɔn din wɔ515 MPa ahoɔden a ɛtwetwe ade a ɛba fam koraa, 205 MPa a ɛba fam koraa 0.2% adanse ahoɔden, ne40% minimum elongation.

Mfiridwuma mu akenkan a mfasoɔ wɔ so kɛseɛ ne sɛ, abasobɔdeɛ mmienu no nyinaa firi aseɛ firi nhyehyɛɛ mfitiaseɛ a ɛte saa ara, nanso wɔnyɛ pɛ wɔ agyapadeɛ a ɛtɔ so mmienu anaa fabrication ho nsusuiɛ biara mu.316ma kwan ma hardness a ɛkorɔn sen biara a ɛkorɔn kakra wɔ cited flat-rolled data no mu, bere a304ne316abien no nyinaa da so ara yɛ austenitic grades a mpɛn pii no wɔhyɛ mu den denamadwuma a awɔw wom sen sɛ wɔde ɔhyew bɛyɛ adwuma. Saa fibea set koro no ara nso hyɛ no nsow sɛ heavy welded afã horow wɔ316mpɛn pii no wɔkɔ316Lbaabi a ɛho hia sɛ wɔtew carbide osutɔ ho asiane so, bere a304Lwɔde di dwuma saa ara wɔ baabi a welding ne intergranular corrosion control ho hia kɛse.

Agyapadeɛ / mfiridwuma ho asɛm	304 dade a ɛnyɛ den	316 dade a ɛnyɛ den	Mfiridwuma mu akenkan
Ahoɔden a wɔde twetwe nneɛma, min.	515 MPa na ɛwɔ hɔ	515 MPa na ɛwɔ hɔ	Nsonsonoe biara nni asɛmti a ntease wom wɔ ahwehwɛde a ɛba fam koraa a wɔhwehwɛ wɔ tensile mu wɔ flat-rolled product data a wɔatwe adwene asi so no ase.
Aba ahoɔden, 0.2% adanse, min.	205 MPa na ɛwɔ hɔ	205 MPa na ɛwɔ hɔ	Base structural level no titiriw yɛ ade koro wɔ annealed tebea mu.
Ntrɛwmu wɔ 50 mm, min.	40%	40%	Grade abien no nyinaa kura ductility a ɛkorɔn na wɔde di dwuma kɛse wɔ baabi a ɛho hia sɛ wɔyɛ no.
Rockwell B denden, max.	92 HRB	95 HRB	316 no ma kwan ma ɛyɛ den kɛse a ɛkorɔn kakra wɔ abasobɔde krataa a wɔatwe adwene asi so no mu.
Brinell a ɛyɛ den, max.	201 HB	217 HB	Bio nso, nsonsonoe ketewaa bi, nanso ɛnyɛ mpɛn pii no nea ɔde paw karkafo titiriw.
Ɔkwan a wɔfa so hyɛ mu den	Adwuma a ɛyɛ nwini-ahyɛɛ den wɔ nneyɛe mu	Adwuma a ɛyɛ nwini-ahyɛɛ den wɔ nneyɛe mu	Wɔtaa paw grade abien no mu biara esiane ɔhyew-treatment ahoɔden mfaso nti.
Low-carbon welded option	304Lwɔtaa de di dwuma wɔ baabi a welding ne intergranular corrosion control ho hia	316Lwɔtaa de di dwuma esiane ntease koro no ara nti wɔ ɔsom a ɛyɛ mmerɛw kɛse mu	"L" grades no ho hia kɛse wɔ welded fabrication mu sen 304 vs 316 label a ɛnyɛ den nkutoo.
Dual-agye atom sɛ stock	304 / 304L adansedi abien abu so wɔ mprɛte, paipu, ne kurukuruwa bar mu	316 / 316L adansedi abien nso abu so wɔ mprɛte, paipu, ne kurukuruwa bar mu	Mpɛn pii no, ɛho hia sɛ wɔde nneɛma a wɔde ama ankasa no hwɛ nneɛma a wɔde sɔ hwɛ adansedi krataa no so, na ɛnyɛ sɛ wobesusuw sɛ efi abasobɔde ho nkyerɛkyerɛmu tiawa bi mu.

Download:304 vs 316 Stainless Steel: Mfiridwuma mu Nneɛma ne Ntease a Wɔpaw

Eyi nti na wɔtaa siesie 304 ne 316 dade a ɛnyɛ den ntotoho no denam nneɛma a atwa yɛn ho ahyia so, na ɛnyɛ nsakrae kɛse a ɛba dan-ɔhyew mfiri ahoɔden mu.

Bere a Ɛsɛ sɛ Wopaw 304 Stainless Steel

304wɔtaa paw wɔ baabi a ɔsom no ho tew, ɛnyɛ den sɛ ɛbɛsɛe, na ɛnyɛ chloride a wɔde gu mu anaasɛ nkyene a wɔde sie so na ɛkanyan no. Nsɛm a ɛtaa ba no bi ne:

Mfiri a ɛwɔ dan mu a wɔde kata so, nea wɔabɔ ho ban, ne nneɛma a wɔde gyina sowɔ adwumayɛbea ahorow a ɛhɔ yɛ kusuu, adan a wɔde nneɛma di dwuma, nhama a wɔde kyekyere nneɛma, ne mmeae a wɔyɛ nneɛma nyinaa a wim tebea no yɛ den na wɔnhwɛ kwan sɛ nkyene bɛgu mu.
Aduan-nkitahodi anaa adididan-afã horow a wɔayɛte sɛ benkyi, sink, splash panels, light-duty tanks, ne tubing a ɛho hia sɛ wɔhohoro daa nanso ahotew nnuru no nyɛ chloride-based denneennen na nnwinnade no nnya nkyene nkae a ɛyɛ den.
Nneɛma a wɔde yɛ adansi ne nneɛma a wɔde siesie fiewɔde di dwuma wɔ abɔnten anaa mfinimfini mmeae a wɔabɔ ho ban, a nea ɛka ho ne trims, handrails, column covers, ne panel assemblies wɔ mmeae a ɛnyɛ-po so.
Adeyɛ ne mfaso afã horowte sɛ nkataso, adan, nnwinnade brackets, access panels, ne light-duty tubing a ahwehwɛde titiriw ne sɛ ɛbɛko atia nsɛe wɔ ɔkwan a ɛkɔ akyiri so sen sɛ ɛbɛko atia chloride ntua.
Nneɛma a wɔkora so ne nea wɔyɛte sɛ nkukuo, adwumayɛ pon, chutes, hoppers, ne nsukorabea a wɔmfa -nsu nsuo mu a nsuo no kɔ mu, nsuo a ɛkɔ mu no ye, na nneɛma a wɔde gu mu no ntra soro bere tenten.
Welded fabrications wɔ ɔsom a ɛyɛ brɛoo mubaabi a nneɛma a atwa yɛn ho ahyia no nnyɛ nea ɛfata sɛ wotu kɔ molybdenum-bearing grade, ne baabi a 304 anaa 304L di nsɛe ne fabrication adwumayɛ a wɔhwehwɛ no ho dwuma dedaw.

Bere a Ɛsɛ sɛ Wopaw 316 Stainless Steel

316wɔtaa paw bere a ɔsom tebea no de chloride adesoa a ɛkɔ so tra hɔ, nnuru a wɔde hohoro nneɛma a emu yɛ den, anaasɛ asiane a emu yɛ den a ɛbɛma amena ne mpaapaemu asɛe no ba no. Nsɛm a ɛtaa ba no bi ne:

Mpoano ne po so-abɛn a wɔayɛte sɛ abɔnten apon, nnwinnade nnaka, nnwinnade a wɔde hyɛ mu, antweri, ne akwan a wɔfa so kɔ hɔ a wɔde nkyene-mframa a nkyene ahyɛ mu ma, mframa-nneɛma a wɔde gu mu, anaa mmeae a atwa ho ahyia a splash-fĩ ahyɛ mu ma.
Washdown-nwinnade a emu yɛ duru a wɔde yɛ adwumawɔ nnuan, anonne, nnuru, anaa nnuruyɛ adwumayɛbea ahorow a wɔde nsu a wɔde tew nneɛma ho, nnuru a wɔde kum mmoawa, ne nsu-dry cycles a ɛma nneɛma a ɛporɔw gu hɔ mpɛn pii.
Abɔnten so mfaso ne dwumadie hardwarete sɛ paipu supports, clamps, junction boxes, valve guards, ne fabricated brackets a wɔde ahyɛ baabi a deicing salts, industrial fallout, anaa chloride-bearing deposits da so ara wɔ soro wɔ maintenance ntam.
Tank, tubing, ne nneɛma a wɔayɛmedia anaa dwumadie tebea a ɛhia sɛ wɔde corrosion margin a ɛkorɔn sene 304 di dwuma no bɛtumi ama, titire wɔ baabi a mpaapaemu, gasket lines, lap joints, anaa low-drainage details yɛ design no fã.
Nnuruyɛ adwumayɛbea ne mpoano-som adwumayɛbea ahorowbaabi a nneɛma a atwa yɛn ho ahyia no nyɛ den sɛnea ɛbɛyɛ a ɛbɛhwehwɛ sɛ wɔde aduru a wɔde afrafra nhyehyɛe a ɛkorɔn kɛse di dwuma, nanso ɛda so ara yɛ basabasa araa ma 304 bɛyɛ nea ɛyɛ mmerɛw kɛse sɛ nkekae, amena, anaasɛ ntua a ɛba soro ntɛm.
Nkwa tenten-abɔnten mfiribaabi a sɛnea ɛte sɛ nea wɔkora so, mpɛn dodow a wɔtew so, ne sɛnea wɔko tia chloride-a ɛfa pitting ho yiye no ho hia sen sɛ wɔbɛtew nneɛma ho ka a edi kan no so.

Nsɛm a wɔafa aka a wontua hwee

FAQ

01.So 316 ye bere nyinaa sen 304 dade a ɛnyɛ den a wɔde di dwuma wɔ abɔnten?

Dabi Wɔ abɔnten som adwuma a ɛnyɛ den mu a ɛwɔ akyirikyiri fi nkyene a wɔde gu mu mu no, .304no taa yɛ nea ɛfata.316bɛyɛ ɔkwan a eye sen biara bere a wɔde ɔfasu no da adi nochlorides, mpoano mframa, nkyene a ɛma nsukyenee fi nsukyenee mu, anaasɛ nneɛma a ɛkɔ so daa.

02.Wɔ chloride dodow bɛn mu na ɛsɛ sɛ wɔma 304 kɔ soro kɔ 316 dade a ɛnyɛ den?

Sɛ́ akwankyerɛ a wɔatintim amaneutral, ambient-ɔhyew som, 304/304Lmpɛn pii no ɛyɛ bɛyɛChlorides 200 ppm na ɛyɛ adwuma, berɛ a316/316Lbetumi atrɛw akodu bɛyɛ1000 ppm na ɛwɔ hɔ. Mpaapaemu, ɔhyew, nneɛma a ɛwɔ hɔ, ne pasivation a enye betumi atew saa anohyeto ahorow no so.

03.For welded fabrications, ɛsɛ sɛ mede toto 304 vs 316 anaa 304L vs 316L?

Wɔ mfiri a wɔde weld ayɛ ho no, dodow no ara na mfaso wɔ so kɛse sɛ wɔde toto ho304L ne 316L ntam, efisɛlow-carbon L grade ahorowwɔpɛ baabi a welding ne post-weld corrosion control ho asɛm. Ɛsɛ sɛ 304L ne 316L ntam a wɔpaw no da so ara di ɔsom tebea ankasa akyi.

04.So 316 dade a ɛnyɛ den fata ma ɛpo mu nsu anaa chloride a ɛyɛ hyew som?

Ɛnyɛ nea ɛba ara kwa.316no ye sen304, nanso ɛte saaɛnyɛ amansan nyinaa po mu nsu grade. ASSDA hyɛ no nsow sɛ ɛpo mu nsu atwa ho ahyiaChlorides 20,000 ppm na ɛwɔ hɔ, na chloride a ɛyɛ hyew tebea betumi atew mfɛnsere a ahobammɔ wom a wɔde yɛ adwuma no so bio.