ASTM A333 Grade 6 Nsuo afiri

ASTM A333 Grade 6 kata dade paipu a ɛnyɛ den na wɔde weld ayɛ a wɔde di dwuma wɔ ɔhyew a ɛba fam kosi –50℃F (–46 degree) so.

Wɔayɛ dade no sɛnea ɛbɛyɛ a ɛbɛkɔ so ayɛ den wɔ tebea horow a ɛnyɛ zero mu, na ɛboa nhyɛso a ahobammɔ wom a wɔde siw ano ne nhyehyɛe a ɛyɛ den wɔ cryogenic nhyehyɛe ahorow a ɛhwehwɛ te sɛ LNG terminals, gas processing plants, ne arctic pipeline infrastructures mu.

Adwumayɛ ho su atitiriw:

• Mpaapaemu a ɛko tia wɔ ɔhyew a ɛtwetwe ase
• Ahoɔden a egyina pintinn wɔ awɔw mu mfiase kyinhyia ahorow mu
• Weldability a wotumi de ho to so ma afuw mu nhyehyɛe
• Ɛne no hyia ma ASME nhyɛso nhyehyɛe a ɛyɛ hyew a ɛba fam-

Sulfur & phosphorus a ɛba fam ma notch toughness tu mpɔn wɔ ɔhyew a ɛba fam mu.

Charpy V-Notch sɔhwɛ hwɛ hu sɛ ɛko tia mpaapaemu ma LNG ne arctic som.

Wɔyɛ ASTM A333 Grade 6 paipu sɛ seamless anaasɛ welded pipes, nanso wɔ nsɛm abien no nyinaa mu no, wɔahyehyɛ adeyɛ no sɛnea ɛbɛyɛ a wobedi low-temperature toughness ahwehwɛde ahorow ho dwuma. Wɔde dade a ɛho tew na ɛyɛ fɛ-aburow na efi ase yɛ de hwɛ hu sɛ ade no betumi atwe nkɛntɛnso wɔ ɔhyew a ennu zero mu. Wɔhwɛ forming ne sizing so sɛnea ɛbɛyɛ a pipe no kɔ so yɛ pɛpɛɛpɛ OD, ɔfasu ne straightness, a ɛho hia bere a lines yɛ prefabricated na field-welded. Wɔsan nso hwɛ emu no ani su so sɛnea ɛbɛyɛ a wɔbɛkɔ so akura nsuo a ɛsen no su pa mu ama ngo, gas anaa nsɛm a wɔde di dwuma.

Sɛ wɔhyehyɛ wie a, wɔde paipu no fa ɔhyew a wɔahyɛ so-aduru kyinhyia mu. Saa anammɔn yi nyɛ sɛ ɛbɛma adwennwene afi hɔ kɛkɛ - ɛyɛ titiriw sɛ wɔde ductility bɛsan aba na ama microstructure no ayɛ pɛ sɛnea ɛbɛyɛ a Charpy impact values ​​a ɛwɔ -45℃(anaasɛ ɔhyew a wɔakyerɛ wɔ nhyehyɛe no mu) betumi adi ho dwuma. Sɛ wɔma aburow no yɛ nea ɛfata anaasɛ wɔma ɛyɛ hyew yiye a, ɛma aburow no yɛ den, ɛma notch no yɛ den, na ɛma paipu no tumi gyina mpofirim a ɛbɛbɔ anaa nhyɛso a ɛsakrasakra wɔ awɔw bere mu no ano yiye.

Project-abodwokyɛre pɔtee ne NDE ahwehwɛdeɛ betumi aka ho ama dwumadie a ɛho hia.

ASTM A333 Grade 6 ma weldability a ɛyɛ den ma modular nhyiam ne afuw mu adansi.

Nanso, ɛsɛ sɛ wɔkora ɔhyew{0}}a ɛka beae (HAZ) su ahorow so yiye na ama wɔahwɛ ahu sɛ ɔhyew a ɛba fam-yɛ adwuma:

• Welding nhyehyɛe a ɛne ne ho hyiane SMAW, GTAW, ne GMAW ma sotɔɔ ne afuw mu nkwaa nyinaa
• WPS/PQR a ɛfataa wɔhwehwɛ sɛ wɔsi nkɛntɛnso toughness so dua bere a wɔadi welding wɔ cryogenic nnwuma mu akyi
• Ɔhyew a wɔde hyɛ mu no sohwɛ a emu yɛ densɛnea ɛbɛyɛ a wobesiw aburow a ɛyɛ mmerɛw ne notch toughness a ɛyera wɔ HAZ no mu ano
• PWHT a egyina ɔsom tebea sone design code ahwehwɛde ahorow a ɛbɛma weld joint uniformity atu mpɔn
• Weld nhama nhwehwɛmu (UT/RT) .wɔkamfo kyerɛ sɛ wɔmfa nni dwuma wɔ LNG ne arctic a nea efi mu ba kɛse ne huammɔdi

Welding nhyehyɛe a ɛfata a wɔde di dwuma no hwɛ hu sɛ paipu a wɔde ahyɛ mu no kura mpaapaemu a ɛko tia ne leak-tight adwumayɛ mu wɔ awɔw mfiase kyinhyia a wɔtaa yɛ no ase.

Sɔhwɛ foforo (PMI / UT 100% / ɔdansefo a ɔto so abiɛsa-ɔdansefo) a ɛwɔ hɔ ma akuw a ɛho hia.

• LNG regasification ne liquefaction adwumayɛbea ahorow
• Cryogenic ne frigye nsu afiri
• Arctic ngo & gas a wɔde fa nneɛma mu
• Low-ɔhyew nhyɛso nsukorade & modules
• Po so ne asase so awɔw-wim tebea ho nhyehyɛe
• Wɔayɛ no sɛnea ɛbɛyɛ a wɔbɛkwati asiane ahorow a ɛfa brittle huammɔdi ho wɔ ɔhyew a ɛkɔ fam kɛse mu.

Octal Pipe boa cryogenic pipeline adwumayɛ denam welding akwan a ɛfata, adansedi nkɛntɛnso sɔhwɛ kyerɛwtohɔ, ne nneɛma traceability fi mill kosi installation.

Nneɛma a wɔde ma a wɔde wɔn adwene si mmara so, nhwehwɛmu a wɔayɛ no sɛnea wɔpɛ, ne nneɛma a wɔde ma a wotumi de ho to so ma ASTM A333 Grade 6 a efi Octal Pipe yɛ nea wɔada no adi sɛ wɔpaw ma LNG ne ɔhyew a ɛba fam-ɔhyew som mmeae.

Di nkitaho mprempren

FAQ

 

 

Q1: Dɛn na wɔde ASTM A333 Grade 6 paipu di dwuma?

A1: Low-ɔhyew nhyɛso service piping baabi a ɛho hia sɛ impact toughness.

Q2: Nsunsuansoɔ sɔhwɛ ɔhyew bɛn na wɔtaa kyerɛ ma A333 Grade 6?

A2: Mpɛn pii no ɛyɛ −45℃(−50℃F), gye sɛ adwuma no kyerɛ sɔhwɛ ɔhyew soronko.

Q3: Nsonsonoe bɛn na ɛwɔ ASTM A333 Grade 6 ne ASTM A106 Grade B ntam?

A3: A333 Grade 6 fata ma ɔhyew a ɛba fam-ɔhyew a ɛyɛ den (wɔasɔ nkɛntɛnso ahwɛ), bere a A106 Grade B yɛ titiriw ma ɔhyew a ɛkorɔn-ɔhyew som.

Q4: So ɛsɛ sɛ mepaw seamless anaasɛ ERW welded A333 Grade 6 paipu?

A4: Paw gyina NPS/ɔfasu no mu duru, NDE scope a wɔhwehwɛ, ne adwuma no gye a wogye tom so.

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