ASTM A270 Sanitary Tubing a Wɔde Yɛ Ahotew Nhama

"Sanitary" nyɛ label-ɛyɛ nea efi mu ba a wogye tom.ASTM A270 ahotew afiri a wɔde fa nsu mukyerɛ bere a adwuma bi dwen ahotew, ɔfasu a wotumi san yɛ bio, ne nhwehwɛmu-nkyerɛwde a wɔasiesie ho. Ebia adetɔfo bɛhwehwɛa270 ahotew dade a ɛnyɛ den paipuanaasɛa270 dade a ɛnyɛ den a wɔde yɛ ahotew tubing, nanso adetɔ ntease no yɛ ade koro: kyerɛ nsɛm kakraa bi a esiw adwuma foforo, pow, ne "dɛn nti na saa krampɔn yi nhyia?" bere tiaa bi.

Ase hɔ no yɛ ɔkwan a mfaso wɔ so, a ɛnyɛ-fluffy a wɔfa so kyerɛa270 ahotew tubingenti ɛba fabrication-asiesie ne gye a wogye-adamfofa kwan so.

Wɔakyerɛw ASTM A270 ama ahotew (ahotew) stainless tubing a wɔde di dwuma wɔ nufusu/aduan, bio-processing, ne nnwuma afoforo a ɛhwehwɛ sɛ wɔyɛ soronko wɔ soro na wɔma wotumi gyina ano. Ɛkata soa ɛnyɛ den koraa, wɔde weld ayɛ, neawɔw kɛse ayɛ adwuma weldedtubing, a ERW/EFW akwan a wɔde weld ayɛ ka ho.

Sɛ adwuma no yɛ "ahotew nanso ɛnyɛ sterile" a, standard sanitary spec taa dɔɔso. Sɛ ɛyɛ "validation-driven" (ahotew a ɛkorɔn anaa pharma kasa) a, spec no taa yɛ den wɔ chemistry, tolerances, ne sɔhwɛ akwanhwɛ so.

Hwɛ ha na woanya nsɛm a ɛfa hoASTM A270 Standard Nkyerɛkyerɛmu.

A270 twe adwene si mfiri ne su pa nhwehwɛmu te sɛflattening-sɔhwɛ ahorow a ɛfa hone emu biarahydrostatic sɔhwɛ anaa anyinam ahoɔden sɔhwɛ a ɛnsɛe adegyina sɛnea wɔkyerɛw nhyehyɛe no so.

Sɛ nsɛe ho awerɛhyem yɛ gye a wogye tom no fã a, A270 ma kwan ma wɔhwehwɛ nsɛe a wɔde ka ho:

• Intergranular nsɛe sɔhwɛma austenitic stainless (A262 adeyɛ a wɔatwe adwene asi so) .
• Duplex phase-fam nhwehwɛmu a ɛfa duplex abasobɔde ho (A923 kwan a wɔatwe adwene asi so) .

Adetɔ ho afotu: sɛ adwuma no frɛ corrosion tests anaa passivation a, nsusuw sɛ ɛyɛ "standard." Fa to PO-afei hwehwɛ amanneɛbɔ no wɔ nkrataa pack no mu.

Wɔtaa pow sanitary tubing esiane nkrataa ne nneɛma a asɛe ho dwuma nti-ɛnyɛ nnuruyɛ nti.

Wobetumi ahyɛ sɛ wɔmfa A270 agyiraehyɛde nka ɔkwan a wɔfa so yɛ nneɛma (SML/WLD/HCW) ho na wɔde agyiraehyɛde ahwehwɛde ahorow no akyekyere agyiraehyɛde ho adeyɛ a wɔde gyina hɔ ma wɔ ɔkwan a ɛkɔ akyiri so. Mpɛn pii no, wɔde nneɛma a wɔde kyekyere nneɛma bom na wɔbɔ ho ban; wobetumi abisa boxed packing ama higher-finish nneɛma.

Adetɔ ho afotu: sɛ wopɛ polished/EP tubing a, fa ka ho:

• End caps
• Ɔkwan a wɔfa so kyekyere nneɛma ho tew (sɛnea ɛbɛyɛ a ɛbɛtew efĩ/ahohoro asiane so) .
• "Asina-to-ɔhyew/dodow" traceability list a ɛnyɛ den sɛ adwuma no yɛ audit-heavy a

Sɛ botae no yɛ ntɛm quoting na revisions kakraa bi a, RFQ pa maa270 ahotew tubingɛsɛ sɛ wɔkenkan te sɛ nhwehwɛmu kratasin-ɛnyɛ agodie a wɔde susuw nneɛma ho.

Fa nhyehyɛe bi te sɛ:

• Susudua:ASTM A270 na ɛwɔ hɔ
• Aba:304/304L anaa 316/316L (si so dua sɛ woanya abasobɔde pɔtee) .
• Kwan:SML / WLD / HCW na ɛyɛ adwuma
• Kɛseɛ:OD × WT (anaasɛ ahotew inch OD nhyiam horow) .
• Tenten:fixed / random / amanne kwan so
• Wie:mill / Dabi. 180 / Dabi. 240 / anyinam ahoɔden
• Roughness ahwehwɛde:max Ra (ID/OD/abien no nyinaa) ne ɔkwan a wɔfa so susuw nneɛma
• Sɔhwɛ:hydrostatic anaa NDE anyinam ahoɔden sɔhwɛ; weld NDE sɛ HCW anaa adwuma no hwehwɛ a
• Agyiraehyɛde & nea wotumi hwehwɛ mu:ɔhyew/dodow, ɔkwan koodu, nkrataa a wɔde ahyɛ mu
• Ahwehwɛde afoforo a wɔhwehwɛ:pharma su / corrosion sɔhwɛ / pasivation ahwehwɛde

Nsɛmfua titiriw a ɛtaa nhyia ho nsɛm ntɛmntɛm: RFQ ahorow bi kura nsɛmfua te sɛa270 304Me ahotew a ɛnyɛ den tubing. Sɛ ɛno da adi a, ɛfata sɛ wusi so dua sɛ ebia adwene no te saa anaa304L(common sanitary grade) anaa adwuma bi-mfinimfini koodu pɔtee-nkyerɛwde biako betumi adan batch biako a wɔapow.

Sɛ akwammisa krataa no yɛ ahotew adwuma a, .ASTM A270 ahotew afiri a wɔde fa nsu mude nhyehyɛe a ɛho tew ma de kyerɛ nea ɛho hia kɛse:surface finish + roughness control, dimensional tolerances, ɔkwan a wɔpaw (SML/WLD/HCW), ɔhyew a wɔde sa yare, agyiraehyɛde, ne sɔhwɛ a wɔpaw. Wɔakyerɛw no yiye wɔ PO no mu, .a270 dade a ɛnyɛ den a wɔde yɛ ahotew tubingdu hɔ a wasiesie ne ho ama fabrication ne acceptance-a enni ahodwiriw wɔ gye anaa bere a wɔagye atom.

Di nkitaho mprempren

FAQ

 

 

01.Ɔkwan bɛn so na ɛsɛ sɛ wɔkyerɛw RFQ ma ASTM A270 sanitary tubing na wɔakwati "wrong finish / wrong tolerance" akyinnyegye?

Kyerɛkyerɛ muabasobɔde (304/304L anaa 316/316L) ., ɔkwan (SML/WLD/HCW) ., OD × WT + tenten, wie (No.180/No.240/EP) ., Ra anohyeto (ID/OD/abien no nyinaa) sɛnea ASME B46.1, ɛhiasɔhwɛ ahorow (nsu anaa anyinam ahoɔden/NDE) ., ne nea ɛka honkrataa (EN 10204 3.1 MTC) .ne packing (end-capped/wɔabɔ ho ban).

02.Dɛn na surface finish details ho hia kɛse ma sanitary gye a wogye tom ne ahotew validation?

Ɔmanmfiri a wɔde yɛ polish level (No.180/No.240) .anaasɛanyinam ahoɔden a wɔde yɛ nneɛma, afei fa nea wotumi susuw ka honea ɛsen biara Rana ma emu da hɔ sɛ ɛfa ho anaaID nkutoo naanaasɛID + OD na ɛwɔ hɔ. Eyi siw pow a egyina adwene mu "smoothness" so no ano.

03.Seamless vs welded vs HCW - ASTM A270 kwan bɛn na ɛsɛ sɛ wɔpaw ma ahotew adwuma?

SMLwɔpɛ bere a weld seam nyɛ nea wogye tom no;WLD na ɛwɔ hɔabu so wɔ ahotew nhama pii mu bere a wɔakyerɛ no yiye no;HCW na ɔkyerɛweewɔde di dwuma bere a ɛho hia sɛ wɔde nteɛso a ɛkorɔn ma (welded tube cold-ayɛ adwuma Kɛse sen anaasɛ ɛyɛ pɛ 35% ansa na wɔayɛ anneal a etwa to) na ebetumi ne weld nokwaredi akwanhwɛ a emu yɛ den ahyia.

04.Nsɔhwɛ ne nhwehwɛmu nneɛma bɛn na ɛsɛ sɛ wɔsrɛ ma A270 stainless steel sanitary tubing?

Kyerɛkyerɛ mu sɛ ebia nhyehyɛe no hwehwɛ anaahydrostatic sɔhwɛ a wɔyɛanaasɛanyinam ahoɔden sɔhwɛ a ɛnyɛ nea ɛsɛe ade, na fa ahiade foforo biara te sɛintergranular nsɛe sɔhwɛ (A262) .ma austenitic grades anaa duplex phase-fa checks wɔ baabi a ɛfata.

05.Dɛn packaging ne traceability ahwehwɛde tew agye ɔsɛe na ntɛmntɛm QA release?

Abisadeɛawiei caps, scratch-abɔ ho ban packing (sɛ ɛho hia ma polished/EP a wɔde ahyɛ adaka mu) ., wannagyiraehyɛde a wɔde ɔhyew/lot ID ne ɔkwan (SML/WLD/HCW) ., ne apacking list a piece-kɔ-ɔhyew mapne3.1 MTC na ɛwɔ hɔsɛnea ɛbɛyɛ a wobenya clearance ntɛmntɛm.

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