Vim li cas TP304L seamless kav txuas ntxiv tuaj yeem ua rau muaj qhov sib txawv ntawm qhov sib txawv, qhov sib txawv ntawm qhov sib txawv los yog qhov sib txawv ntawm cov dej hauv cov tshuab ua kua los yog cov ntawv siv purity siab, txawm tias thaum ua tau raws li cov kev cai? Lub ntsiab lus yog nyob rau hauv seb cov ntsiab lus ntawm cov pa roj carbon monoxide yog tswj nruj, seb qhov kev kho cua sov puas tau ua kom raug, thiab seb qhov tseeb qhov tseeb thiab qhov chaw zoo tiag tiag ua tau raws li cov qauv kev siv high-end.
Peb ASTM A312 TP304L txias-kuav los tiag stainless hlau seamless yeeb nkab nta nruj tswj cov ntsiab lus carbon (C Tsawg dua los yog sib npaug rau 0.03%), uas zoo txo qhov kev pheej hmoo ntawm intergranular corrosion thaum vuam thiab high-temperature kev pab cuam. The cold rolling process ensures a denser and smoother interior and exterior surface, free of scale, cracks or inclusions. Qhov no txo qis tsis kam mus rau cov kua dej ntws thiab txo qhov ntsuas thiab cov kab mob sib kis los ntawm kwv yees li 15% txog 20%, ua rau nws tshwj xeeb tshaj yog haum rau kev lag luam uas muaj kev tiv thaiv corrosion siab, xws li kev ua tshuaj lom neeg, khoom noj khoom haus thiab kev lag luam tshuaj.
ASTM A312 TP304L Cold Rolled Seamless Yeeb Nkab
Tag nrho cov ASTM A312 TP304L hlab tau txais cov txheej txheem kev daws teeb meem, feem ntau siab dua 1040 degrees, ua raws li kev quenching ceev. Qhov no ua kom tiav kev sib cais ntawm carbides, tsis tu ncua microstructure thiab muaj txiaj ntsig zoo rau kev ntxhov siab, yog li txhim kho corrosion kuj thiab qhov ntev stability.
Hais txog qhov ntev ntev, peb nruj me ntsis ua raws li ASTM A312 cov qauv, thaum ua kom zoo dua ntawm qhov zoo ntawm qhov txias dov. Sab nraud txoj kab uas hla yog tswj nyob rau hauv ib tug ntau yam ntawm ± 0.2% rau ± 0.3%, thiab phab ntsa thickness kam rau ua nyob rau hauv ± 10%, kom ntseeg tau zoo heev haum nyob rau hauv precision sib dhos, txo qhov kev teeb tsa tsis raug thiab txo cov pa phem.
Tshuaj muaj pes tsawg leeg
| Qib | Yog lawm | c | mn | Cr | Q | Yog lawm | Tsis yog | |
|---|---|---|---|---|---|---|---|---|
| TP 304 L | min. | - | - | - | 18 | - | - | 8 |
| max. | 1 | 0.03 ib | 2 | 20 | 0.045 ib | 0.03 ib | 12 |
Mechanical Properties (UNS S30403)
| Tensile zog, min. MPa [ksi] | 485 MPa - 70 ksi |
|---|---|
| Yield zog, min. MPa [ksi] | 170 MPa - 25 ksi |
| Elongation, min. (% hauv 50mm) | 40% |
ASTM A312 TP304L Seamless yeeb nkab muaj qhov ntau thiab tsawg
| NB qhov ntau thiab tsawg | SCH 5 | SCH 10 | SCH 40 | SCH 80 | TIAB SA 160 |
|---|---|---|---|---|---|
| 1/8 " | √ | √ | √ | √ | √ |
| 1/4 " | √ | √ | √ | √ | √ |
| 3/8 " | √ | √ | √ | √ | √ |
| 1/2 " | √ | √ | √ | √ | √ |
| 3/4 " | √ | √ | √ | √ | √ |
| 1" | √ | √ | √ | √ | √ |
| 1 1/4" | √ | √ | √ | √ | √ |
| 1 1/2" | √ | √ | √ | √ | √ |
| 2" | √ | √ | √ | √ | √ |
| 2 1/2" | √ | √ | √ | √ | √ |
| 3" | √ | √ | √ | √ | √ |
| 4" | √ | √ | √ | √ | √ |
| 5" | √ | √ | √ | √ | √ |
| 6" | √ | √ | √ | √ | √ |
Phab ntsa Thickness Tolerances rau ASTM A312 Seamless Yeeb Nkab
Rau cov yeeb nkab txias-tiav seamless, qhov tso cai hloov pauv hauv phab ntsa tuab yog txiav txim siab los ntawm nominal yeeb nkab loj (NPS) raws li hauv qab no:
| NPS npe | Outer Diameter (OD) Ntau | Kev kam rau siab (%) | Kev kam rau siab (%) |
|---|---|---|---|
| 1/8 rau 2 1/2 (incl.) | 0.405 "mus rau 2.875" (10.3-73.0 hli) | -12.5% | +20,0% |
| 3 mus rau 18 (incl.) | 3,500 "mus rau 18,000" (88.9-457.2 hli) | -12.5% | +15,0% |
| 20 thiab laus dua | 20,000 "(508.0 mm) thiab siab dua | -12.5% | +15,0% |
Kev tshuaj xyuas thiab kev sim
Kev tswj kom zoo yog ib qho ntawm cov txheej txheem tseem ceeb tshaj plaws hauv kev tsim khoom. Peb hais rau 100% kev tshuaj xyuas ua ntej xa khoom kom ntseeg tau tias cov khoom raug xa tawm tsis muaj qhov tsis xws luag.
Peb muaj cov cuab yeej ua tiav rau kev tshuaj xyuas zoo, suav nrog kev sim tshuab, tshuaj xyuas tshuaj, lub zog tensile thiab hardness kuaj, spectrometry, kuaj ultrasonic, thiab lwm yam.
Kev ntim khoom zoo
1) Bundled nrog steel strapping.
2) Kev ntim khoom pib nrog lub hnab yas, ua raws li txoj hlua khi; Txhawm rau pom cov ntsiab lus ntim, thov saib daim duab hauv cov lus piav qhia ntxaws.
3) Hauv ntau.
4) Raws li cov neeg siv khoom xav tau.
5) Kev xa khoom:
• Thawv: 25 tons rau ib lub thawv rau cov kav dej nrog cov txheej txheem sab nraud. Rau 20-ko taw ntim, qhov siab tshaj plaws yog 5.85 m; Rau 40ft thawv, qhov siab tshaj plaws yog 12m.
• Lub nkoj thauj khoom loj: Tsis muaj kev txwv rau qhov ntev ntawm cov kav dej; Txawm li cas los xij, lub sijhawm thauj khoom qhov chaw tshwj xeeb yog ntev.
Packing ntawm stainless hlau raj hauv cov thawv ntoo
