ASTM A376 TP347H Stainless hlau Seamless Tube 347/347H Inox Tube
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ASTM A376 TP347H Stainless hlau Seamless Tube 347/347H Inox Tube
Kev piav qhia
| Daim ntawv thov: | Kev tsim kho, Kho kom zoo nkauj, kev lag luam, boiler, tshuaj | Txheem: | DIN, ASTM, JIS, AISI |
|---|---|---|---|
| Steel Qib: | 347 | Hom: | Seamless |
| Vuam kab hom: | Seamless | Thickness: | 0.5 ~ 60mm |
| Ntev: | 3000mm ~ 6000mm, Cov neeg siv khoom thov | Cov duab: | Round.square.Rectangle |
| Sab nraud txoj kab uas hla: | 6-762 hli | Cov txheej txheem: | Txias Drawn |
| Nto: | Annealing, pickling | ||
| Lub teeb siab: |
seamless stainless hlau raj,ss seamless kav |
||
General Properties
Alloy 347 (UNS S34700) yog columbium stabilized austenitic stainless hlau phaj nrog zoo dav corrosion kuj thiab me ntsis zoo kuj nyob rau hauv muaj zog oxidizing tej yam kev mob tshaj 321 (UNS S32100). Nws muaj kev tiv thaiv zoo heev rau intergranular corrosion tom qab raug kub hauv chromium carbide nag lossis daus ntawm 800 - 1500 degree F (427 - 816 degree). Cov hlau muaj qhov zoo oxidation tsis kam thiab creep zog rau 1500 degree F (816 degree). Nws kuj muaj qhov zoo ntawm qhov kub thiab txias toughness.
Alloy 347H (UNS S3409) stainless hlau phaj yog cov carbon ntau dua (0.04 - 0.10) version ntawm cov hlau. Nws tau tsim los txhim kho kev nkag siab thiab muaj zog dua ntawm qhov kub siab tshaj 1000 degree F (537 degree ). Feem ntau, cov ntsiab lus carbon ntawm lub phaj ua kom muaj ntawv pov thawj dual.
Alloy 347 stainless hlau phaj tsis tuaj yeem hardened los ntawm kev kho cua sov, tsuas yog los ntawm kev ua haujlwm txias. Nws tuaj yeem ua tau yooj yim welded thiab ua tiav los ntawm cov txheej txheem khw fabrication.
Corrosion Resistance
Alloy 347 stainless hlau phaj nthuav tawm zoo dav dav corrosion kuj uas yog piv rau 304. Nws tau tsim los siv rau hauv chromium carbide nag lossis daus ntau ntawm 800 - 1500 degree F (427 - 816 degree) qhov twg tsis ruaj khov alloys xws li 304 raug rau intergranular nres. Nyob rau hauv qhov kub thiab txias, tag nrho corrosion kuj ntawm Alloy 347 stainless hlau phaj yog superior rau Alloy 321 stainless hlau phaj. Alloy 347 kuj ua tau zoo dua li Alloy 321 nyob rau hauv oxidizing ib puag ncig mus txog 1500 degree F (816 degree).
Cov hlau tuaj yeem siv rau hauv cov kev daws teeb meem nitric, feem ntau diluted organic acids ntawm qhov kub nruab nrab thiab hauv cov ntshiab phosphoric acid ntawm qhov kub thiab txias txog li 10% diluted daws ntawm qhov kub thiab txias. Alloy 347 stainless hlau phaj resists polythionic acid kev nyuaj siab corrosion cracking nyob rau hauv cov kev pab cuam hydrocarbon. Nws tuaj yeem siv tau hauv cov tshuaj chloride lossis fluoride dawb caustic daws ntawm qhov kub thiab txias.
Alloy 347 stainless hlau phaj tsis ua haujlwm zoo hauv cov tshuaj chloride, txawm tias nyob rau hauv me me, lossis hauv sulfuric acid.
Tshuaj ntsuam xyuas
Qhov hnyav % (tag nrho cov txiaj ntsig yog qhov siab tshaj plaws tshwj tsis yog muaj ntau yam qhia)
| Lub ntsiab | 347 | 347H |
|---|---|---|
| Chromium | 17.00 feeb.-19.00 max. | 17.00 feeb.-19.00 max. |
| Nickel | 9. 00 min.-13 00 max. | 9. 00 min.-13 00 max. |
| Cov pa roj carbon | 0.08 | 0.04 min.-0.10 max. |
| Manganese | 2.00 | 2.00 |
| Phosphorus | 0.045 | 0.045 |
| Sulfur | 0.03 | 0.03 |
| Silicon | 0.75 | 0.75 |
| Columbium & Tantalum | 10 x (C + N) min.-1 00 max. | 8 x (C + N) min.-1 00 max. |
| Hlau | Tshuav | Tshuav |
Mechanical Properties
Tus nqi zoo ntawm 68 degree F (20 degree)
| Yield zog 0.2% Offset |
Qhov kawg Tensile Lub zog |
Elongation ua 2in. |
Hardness | ||
|---|---|---|---|---|---|
| psi (min.) | (MPa) | psi (min.) | (MPa) | % (min.) | (max.) |
| 30,000 | 205 | 75,000 | 515 | 40 | 201 Brinell |
Cov ntaub ntawv Fabrication
Alloy 347 stainless hlau phaj tuaj yeem ua tau yooj yim welded thiab ua tiav los ntawm cov khoom siv hauv khw.
Txias txoj kev
Lub alloy yog ductile heev thiab cov ntaub ntawv yooj yim.
Kub txoj kev
Cov ntsiab lus sulfur siab ntawm Alloy 303 kuj muaj kev cuam tshuam rau kev ua haujlwm kub. Yog tias yuav tsum tau ua kom kub, ib zaug ntxiv, 304 yuav tsum raug suav hais tias yog kev xaiv xaiv.
Tshuab dhos
Qhov txias ua hauj lwm hardening tus nqi ntawm 347 stainless hlau phaj ua rau nws tsawg machinable tshaj 410 stainless hlau, tab sis zoo ib yam li 304. Cov lus hauv qab no muab cov ntaub ntawv machining cuam tshuam.
Cim npe nrov: astm a376 tp347h stainless hlau seamless raj 347/347h inox raj, Tuam Tshoj astm a376 tp347h stainless hlau seamless raj 347/347h inox tube lwm tus neeg
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