Stainless Steel Paip Testing

Infomesen blong Testing

Stainless steel paip testing hem i wan kaen blong test we laboratory olsem ZHONGXI Testing i save mekem long ol paip we oli mekem long stainless steel, mo hem i save tekem plae long ol difren industri olsem ol planta blong wota, ol pipelain blong gas mo oli, ol simikol industri, ol fodorol setem blong hospital, ol sip, mo ol bilding we oli yusum paip blong kareem wota hot mo kol. Stainless steel paip oli stap long difren klas: austenitik (304, 316, 321, 347), duples (2205, 2507), ferritik (409, 430), mo martensitik (410, 420), mo evri klas i gat pRotoroti we i stap diffren, so test i nid blong luk save se paip i mekem gud olsem standad blong hem i talem.

Posepn blong testing hem i blong sudum se paip i gat korek kemikal komposisen, i gat stret mikrostroktur, i no gat ol krak olsem intergranular corrosion crack, i save holem presa we man i ekspektem, mo i save protektem gens korosen we mediem blong simikol oli wokem long en. Teknik we oli yusum oli inkled spetrel analaizis blong kemikal (spark OES, ICP), tensail test blong mekanikal propoti, hardnes test, metalografi blong luk mikrostroktur, intergranular corrosion test, presa test (hidrostatik mo eddi karen), nondistruktif test (UT, RT, ET), mo ekwipmensesen test blong flange mo weld.

Testing proses blong nomal i stat wetem risiv blong sempel mo rikodem infomesean blong klian (klas blong stili, sas, daimenshen, we i stap yusum). Afta hem i go long sampling, we teknisian i tekem pat blong paip blong mekem specimen blong tensail (stripe savo, ring eksepansen), hardnes, mo metalografi. Ol parameter we oli miasua oli inkled wall thiknes, outsaid daimita, ovaliti, lengh tolerens, yild strenth, tensail strenth, elongesen, RB/RHV hardnes, GRAIN sas, DEKARBURIZESEN leya, presa we paip i holem bifo i lek, mo bend test o flattening test blong luk ductiliti. Nondistruktiv mettod oli stap applied long weld seam blong welded paip mo long ful bodi blong seamless paip. Afta ol test i finis, laboratuar i mekem ripot we i save save ol rezolt, mettod, mo ol kondisen blong test.

Skop blong Testing

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• Tensail strenth (Rm), blong save maksimum tensaon we paip i save holem bifo i brekem
• Yild strenth (Rp0.2), blong save tensaon we i stat blong givim permanent deformesen
• Elongesen afta frek (A), blong meja duktiriti mo abiliti blong paip blong bend without krak
• Hardnes (HRB, HRC, HV), blong save rezsistens blong surfas gens indentation mo wea
• Ring tensail test mo flattern test, blong welded paip blong chkek weld integriti long sekcen direksen
• Bend test (revess bend, face bend), blong luk se weld mo heat-affected zone i no gat krak
• Grain sas mejaement, blong sudum se mikrostroktur i insaed long limit we standad i allowem
• Intergranular corrosion test (asta A, asta B, asta C, asta E praqtis), blong detektem sensitizesen from weld o hit tretmen
• Piting corrosion test (CPT mejaement long ferik kloraid solosen), blong duplex mo 316 klase paip
• Alpha phase deteksen blong duplex stili, bikos sigma mo alpha fase i ridis toughness mo korosen rezsistens
• Hidrostatik presa test, blong verifaem se paip i no lek andan presa we i defainem long standad
• Eddi karen test (ET), blong nondistruktiv skrin blong smol defek olsem pinhol long welded seam
• Ultrasound test (UT) long wall thiknes mo laminasen defek, blong seamless mo welded paip
• Radiografi test (RT) blong weld seam, blong detektem internal defek olsem slag inklusen mo lack blong fyujen
• Pene trataen test (PT), blong detektem surfes krak we i smol tumas blong luk wetem ai
• Iグラfe traksen test blong weld, blong meja shaip blong root mo cap blong weld
• Dimensional inspekSen: outsaid daimita, wall thiknes, ovaliti, lengh tolerens mo straen
• Dekarburizesen dep test, blong meja thiknes blong leya we karbon i reredusem from hit proses
• Impact test (Charpy V-notch) long low temperecha, blong paip we i wok long kriyojenik kondisen
• Flensensen test (ISO 8494), blong meja abiliti blong flens long rim blong paip without krak
• Ekspansen test (ISO 8493), blong meka duktiriti blong paip we i stap expanded long weld fiting proses
• Surfas finis mejaement (Ra, RD) we i uas profilometer, blong sanitari mo dekorativ paip
• Ferrite namba mejaement (FN), blong sudum se weld blong duplex mo austenitik paip i gat korek faze balance
• Sulfide stress cracking rezsistens test, blong paip we i wok long sour ol mo gas environmen
• Hydrogen induced cracking test, blong paip blong oli pipelain we i ekspos long H2S
• Nominal pressa rating verifikasen blong paip sistem, blong sudum we pipelain i holem wok presa
• Korosen prodak analisis (Rust tekti test long salt spray), blong dekorativ paip mo eksternal yus

Ol Common Question

Hamas dei bae i tekem blong finisem stainless steel paip testing?

Turnaraon blong test i dependem long namba blong test item mo kaen blong sempel. Blong wan program we i inkled kemikal komposisen, tensail, hardnes, mo intergranular korosen test, i save tekem samwe 7–15 wokking dei. Sipos i gat nondistruktiv test o korosen test we i nid long taem ekspos olsem HIC test, bae turnaraon i go long ples we i mo long liklik. Klien i save askem blong risivem shedul bifor i stat.

Hamas i kostem blong mekem stainless steel paip testing?

Kos i determinem long namba mo kaen blong test item we klien i needem. Wan basic paket we i inkled kemikal komposisen mo mekanikal test i kostem leas longwan programs we i inkled nondistruktiv test, korosen test, mo SEM analisis. Blong risivem eksak kwoutesen, klien i save kontaktem injinia blong laboratuar, givim infomesean blong klas stili, sas, namba sempel, mo ol item we i nid, mo bae oli kalkulem kos blong evri item.

Ol test item we i inkled long stainless steel paip testing oli save difren haos?

Yes, test item i dependem long kaen blong paip mo standad we i apply long hem. Blong welded sanitari paip, program i save inkled kemikal komposisen, tensail, hardnes, raones, mo intergranular korosen. Blong seamless duplex paip blong oli industri, i save adum alpha fase deteksen, piting korosen, impact test, mo UT skrin. Blong egzos paip, i save inkled termal fatik mo oksidesen test. Injinia i save helpem klien blong selektem item we i matchem wetem yus blong paip.

Hamas sempel man i nid blong preparim blong stainless steel paip testing?

Blong standad program, man i nid wan pis paip we i long 300–500 mm, o samting 100–500 g blong metal sampel, blong mekem kemikal analisis mo mekanikal specimen. Sipos test i inkled tensail, i nid mo wan seksem we i long 500 mm o tu pis blong 300 mm. Blong korosen test, man i nid sampel we i big inaf blong katlem sevral specimen long 10 mm × 10 mm × 50 mm. Laboratuar i save givim guideline blong sampling afta i save kaen blong paip mo test item.

Summary

Stainless steel paip testing i kavaem kemikal komposisen analisis, mekanikal propoti test, korosen rezsistens evaluaesen, nondistruktiv inspeks en, mo dimensional verifikasen blong seamless, welded, duplex, ferritik, mo sanitari stainless steel paip. Turnaraon blong test i standem long 7–15 wokking dei, mo skop blong servaes i kavaem ol paip blong fodorol, simikol, oli mo gas, diori, otomotiv, mo kriyojenik aplikesen.