ASTM A249 / A249M Creole
ASTM A249 estandaSpesifikasyon pou chodyè asye Austenitic soude, sipèchofaj, echanjeur chalè, ak tib kondansateur. ASTM A249 asye ka itilize nan anviwònman piman bouk epi li gen bon rezistans nan tanperati ki wo san deformation. Li ka soude ak lòt metal tankou nikèl oswa Titàn tou. Li se yon wo-fòs, ba-alyaj asye ki te itilize pou anpil aplikasyon, tankou nan endistri chimik, petwòl, ak manje.
Aplikasyon pou tib asye pur ASTM A249
ASTM A249 Tib asye puryo se yon chwa popilè pou idrokarbone ak lòt plant chimik, jenerasyon pouvwa ak plant kojenerasyon, dlo, ak sistèm rekiperasyon chalè dlo ize, plant sentèz inòganik, inite rafineri, ak yon varyete de lòt aplikasyon endistriyèl.
Astm A249 materyèl tib ak klas
Espesifikasyon ASTM A249 endike ke materyèl tib yo itilize nan fanmi asye pur se klas Austenitic Nerjaveèi, ki lajman ki itilize nan anpil aplikasyon.klas ASTM A249 TP304, TP304L, TP316, ak TP316Lyo tout materyèl ideyal pou aplikasyon pou divès kalite paske yo gen anpil avantaj ke lòt asye pa genyen.
ASTM A249 TP304 tib asye purse yon pati esansyèl nan nenpòt sistèm presyon epi yo obligatwa pou soude TIG.ASTM A249 TP304L asye pur tib soudese manifaktire satisfè espesifikasyon yo nan estanda ASTM, 304L klas Nerjaveèi asye, ak fini rkwir klere. Tib la souvan itilize pou ekipman chofaj, kondansateur, ak lòt sistèm chofaj.
Si ou ta renmen pwolonje lavi a nan tib asye pur nan anviwònman piman bouk,ASTM A249 TP316/316L soude tibse yon opsyon ekselan pou echanjeur chalè, surchofaj, ak chodyèr akòz gwo rezistans korozyon li yo ak kapasite pou reziste korozyon entèn ak ekstèn.
ASTM A249 Gwosè Tib Soude, Dimansyon ak Tolerans
ASME SA 249 tiyogwosè ak epesè miray yo se: 1/8 pous (3.2 mm) dyamèt enteryè a 12 pous (304.8 mm) dyamèt ekstèn, 0.015 pous a 0.32 pous (0.4). - 8.1 mm). Dimansyon tiyo yo eksprime an pous oswa milimèt, epi pafwa espesifikasyon (BWG) yo espesifye.
Gwosè komen nan tib A249/A269
| O.D. | MM | Epesè MI | MM | LONGÈ | Klas | Kalite | ESPESIFIKASYON YO |
|---|---|---|---|---|---|---|---|
| 1/2" | 12.70 | 0.065" | 1.65 | 10′ – 20′ | 304/304L/316L | Soude | A249 / A269 / A270 |
| 3/4" | 19.05 | 0.065" | 1.65 | 10′ – 20′ | 304/304L/316L | Soude | A249 / A269 / A270 |
| 1" | 25.4 | 0.049" | 1.24 | 10′ – 20′ | 304/304L/316L | Soude | A249 / A269 / A270 |
| 1" | 25.4 | 0.065" | 1.65 | 10′ – 20′ | 304/304L/316L | Soude | A249 / A269 / A270 |
| 11/2" | 38.10 | 0.049" | 1.24 | 10′ – 20′ | 304/304L/316L | Soude | A249 / A269 / A270 |
| 11/2" | 38.10 | 0.065" | 1.65 | 10′ – 20′ | 304/304L/316L | Soude | A249 / A269 / A270 |
| 2" | 50.80 | 0.049" | 1.24 | 10′ – 20′ | 304/304L/316L | Soude | A249 / A269 / A270 |
| 2" | 50.80 | 0.065" | 1.65 | 10′ – 20′ | 304/304L/316L | Soude | A249 / A269 / A270 |
| 21/2" | 63.50 | 0.065" | 1.65 | 10′ – 20′ | 304/304L/316L | Soude | A249 / A269 / A270 |
| 3" | 76.20 | 0.065" | 1.65 | 10′ – 20′ | 304/304L/316L | Soude | A249 / A269 / A270 |
| 4" | 101.60 | 0.065" | 1.65 | 10′ – 20′ | 304/304L/316L | Soude | A249 / A269 / A270 |
| 4" | 101.60 | 0.083" | 2.11 | 10′ – 20′ | 304/304L/316L | Soude | A249 / A269 / A270 |
| 6" | 152.40 | 0.083" | 2.11 | 10′ – 20′ | 304/304L/316L | Soude | A249 / A269 / A270 |
| 6" | 152.40 | 0.109" | 2.77 | 10′ – 20′ | 304/304L/316L | Soude | A249 / A269 / A270 |
| 8" | 203.20 | 0.109" | 2.77 | 10′ – 20′ | 304/304L/316L | Soude | A249 / A269 / A270 |
| 10" | 254.00 | 0.134" | 3.40 | 10′ – 20′ | 304/304L/316L | Soude | A249 / A269 / A270 |
| 12" | 304.80 | 0.134" | 3.40 | 10′ – 20′ | 304/304L/316L | Soude | A249 / A269 / A270 |
Tolerans gwosè
ASTM A249 soude tibtolerans dimansyon se an akò ak ASTM A1016 spesifikasyon, tolerans epesè miray la se +/-10% nan epesè, konpare ak ASTM A269 tolerans gwosè tib jan sa a.
| enpè | VALÈ | L | ||
|---|---|---|---|---|
| ASTM A249 | <25.40mm | �% b10.10mm | ±10.00% | OD＜5{3}}.8mm +3.0mm {{4}m OD ki pi gran pase oswa egal a 50.8mm +5.0 -0mm |
| Pi gran pase oswa egal a 25.4mm ~ 38.1mm | �% b10.15mm | |||
| Pi gran pase oswa egal a 38.1mm ~ 50.8mm | �% b10.20mm | |||
| Pi gran pase oswa egal a 50.8mm ~ 63.5mm | �% b10.25mm | |||
| Pi gran pase oswa egal a 63.5mm ~ 76.2mm | �% b10.30mm | |||
| Pi gran pase oswa egal a 76.2mm ~ 101.6mm | �% b10.38mm | |||
| Pi gran pase oswa egal a 101.6mm ~ 190.5mm | +0.38mm -0.64mm | |||
| Pi gran pase oswa egal a 190.5mm ~ 228.6mm | +0.38mm -1.14mm | |||
| ASTM A269 | <38.1mm | �% b10.13mm | OD<12.7mm ±15% OD pi gran pase oswa egal a 12.7mm ±10% |
OD＜38.1mm +3.20mm -0mm OD ki pi gran pase oswa egal a 38.1mm +4.80 -0mm |
| Pi gran pase oswa egal a 38.1mm ~ 88.9mm | �% b10.25mm | |||
| Pi gran pase oswa egal a 88.9mm ~ 139.7mm | �% b10.38mm | |||
| Pi gran pase oswa egal a 139.7mm ~ 203.7mm | ±0.76mm | |||
| Pi gran pase oswa egal a 203.7mm ~ 304.8mm | ± 1.01mm | |||
| Pi gran pase oswa egal a 304.8mm ~ 355.6mm | ± 1.26mm | |||
Pwopriyete mekanik
ASTM A249: plat, bride ak ranvèse pliye, tès rupture ak dite.
Ki diferans ki genyen ant ASTM A269 ak A249?
ASTM A249 mande anpil tès mekanik pou itilize nan anviwònman kritik nan chodyèr oswa echanjeur chalè. ASTM A269 mande pou ranvèse plat, plis bride ak tès dite. Li pa mande pou tès rupture. ASTM A270 mande pou yon tès ranvèse plat sèlman.
ASTM A249 VS ASTM A269, ki diferans ki genyen?
| Paramèt | ASTM A249 | ASTM 269 |
|---|---|---|
| Tib Faktori | Soude | Soude ak san pwoblèm |
| Aplikasyon | Chodyè Sipèchofaj Echanjeur chalè Kondansasyon |
Sèvis jeneral |
| Gwosè | OD: Max 304.8 Mm Epesè: 0.4 – 8.1 Mm |
ID: min. 3.4 Milimèt Epesè: 0.51 Mm |
| ASTM / ASME | ASTM A249 ASME SA249 |
ASTM A269 |
| Tès | Tès bride | Flaring Tès |
