ASTM A269 Txuj seamless thiab welded yeeb nkab Specification.pdf
Tso lus
ASTM A269 tus qauv yog dab tsi?
ASTM A269 tus qauv npog stainless hlau tubing ntawm nominal phab ntsa tuab npaj rau kev tiv thaiv corrosion, qis - kub, lossis siab - qhov kub thiab txias. Nws qhia txog ntau yam ntawm cov qib stainless hlau feem ntau siv, xws li TP304 thiab TP316, thiab suav nrog cov khoom siv kho tshuab thiab cov kev xeem. Tubing qhov ntev thiab phab ntsa thicknesses feem ntau ua raws li tus qauv no yog: sab hauv txoj kab uas hla 6.4 hli thiab siab dua, thiab nominal phab ntsa thickness 0.51 hli thiab siab dua. Cov cuab yeej cuab tam yuav tsum tsis txhob siv rau tubing nrog lub taub sab hauv tsawg dua 3.2 hli lossis phab ntsa thickness tsawg dua 0.51 hli. Ib phab ntsa thickness ntawm 0.38 hli kuj tau. Qhov no ua kom ntseeg tau tias cov khoom siv tubing no tsim nyog rau kev tiv thaiv corrosion, qis{15}} kub, thiab siab - qhov kub thiab txias.
Dab tsi yog cov khoom sib npaug rau ASTM A269?
ASTM A-269 thiab nws qhov sib npaug ASME, DIN & EN Standard. 202, 304, 304L, 304H, 304LN, 309S, 310S, 316, 316L, 316H, 316Ti, 3216L, 316Ti, 316LN 347, 347H, 904L, SMO 254, ALLOY 254, 6MO, 6MOLY, UNS S31254 ETC.
ASTM A269 Tube Chemical Composition
Mechanical Properties ntawm ASTM A269 Tubing
Qhov ntau ntawm ASTM A269 cov kav dej uas tau txais kev kho cua sov tas li lossis ncaj qha quenching tom qab thermoforming.
ASTM A269 yeeb nkab Permissible Variations hauv Dimensions
* Rau kev txiav txim tubing nrog phab ntsa thickness yuav tsum tau 19.0 hli los yog ntau tshaj, los yog ib tug puab txoj kab uas hla tsawg dua los yog sib npaug rau ib tug txheej txoj kab uas hla ntawm 60 hli, ib tug ntau dua ntawm phab ntsa thickness variation yog tso cai.
Rau qhov ntau thiab tsawg, phab ntsa thickness sib txawv ntawm 12.5 hli yog tso cai.
Rau tubing nrog ib txoj kab uas hla sab hauv tsawg dua 12.7 hli uas tsis tuaj yeem kos tau zoo, phab ntsa thickness sib txawv ntawm 15 hli los ntawm tus nqi teev yog tso cai.
Cov kev zam no siv rau kev txiav cov khoom tsis pub tshaj 24 ko taw (17.3 meters) ntev. Rau cov hlais ntev tshaj 24 ko taw (17.3 meters) ntev, qhov siab siab siab saum toj no yuav tsum tau nce 6 ntiv tes (13 hli) rau txhua 10 taw (3 meters) lossis tsawg dua 10 taw (3 meters), qhov twg tsawg dua.
ASME SA269 SS Rhaub Tubes Nyhav Daim Ntawv Qhia
| Qhov hnyav / m (kg / m) | Loj (OD * WT) |
|---|---|
| 3.94 | 50.8mm * 3mm |
| 2.21 | 38.1 hli * 2 hli |
| 0.77 | 19mm * 1mm |
| 1.37 | 25.4 hli * 1.5 hli |
| 0.103 | 6.35 hli * 0.25 hli |
| 0.32 | 12.7 hli * 0.5 hli |
| 0.27 | 10mm * 0.5 hli |
| 0.53 | 15.88mm * 0.75 hli |
ASTM A269 Seamless Tube Thaum tshav kub kub kho
| Khoom siv | Kev kho cua sov | Qhov kub thiab txias º F (º C) |
|---|---|---|
| A269 316L | Kev daws | 1900(1040) |
| A269 304 | Kev daws | 1900 (1040) |
| A269 304L | Kev daws | 1900 (1040) |
| A269 316 | Kev daws | 1900(1040) |
Dab tsi yog qhov txawv ntawm ASTM A269 thiab A213?
ASTM A213 yog rau seamless ferritic thiab austenitic alloy steel tubing rau siab - cov ntawv thov siab xws li boilers thiab tshav kub exchangers, thaum ASTM A269 npog ob seamless thiab welded austenitic stainless hlau tubing rau kev xeb dav dav - tiv thaiv kev pab cuam ntawm qhov kub thiab txias. Qhov sib txawv tseem ceeb yog cov txheej txheem tsim khoom (seamless rau A213, seamless thiab welded rau A269) thiab daim ntawv thov (siab- kub siab rau A213, kev pabcuam dav dav rau A269).
Dab tsi yog qhov txawv ntawm ASTM A269 thiab A312?
ASTM A269 npog seamless thiab welded austenitic stainless hlau tubing rau dav dav qis - mus rau siab - qhov kub thiab txias kev pab cuam, thaum ASTM A312 npog seamless, welded, thiab hnyav heev txias - ua hauj lwm austenitic stainless hlau yeeb nkab rau dav corrosive kev pab cuam nyob rau hauv high kub. Qhov sib txawv tseem ceeb yog A269 yog rau dav dav - lub hom phiaj tubing, thaum A312 yog tus qauv rau cov kav dej uas tsim los rau siab dua - kub, corrosive industrial applications.
Dab tsi yog qhov txawv ntawm ASTM A270 thiab A269?
Qhov sib txawv tseem ceeb yog tias ASTM A270 xav tau qhov tshwj xeeb, siab - qhov chaw zoo, ua kom nws haum rau cov khoom siv huv huv xws li cov khoom noj thiab tshuaj, thaum ASTM A269 yog rau kev dav dav - lub hom phiaj tubing uas tsis tshua muaj zog, "ua haujlwm zoo li" ua tiav. Qhov no txhais tau hais tias A270 cov raj muaj polished sab hauv thiab sab nrauv, tsis muaj cov khoom seem ntawm cov hlaws, thiab muaj kev huv zoo dua, qhov A269 tsis xav tau cov yam ntxwv no.
