ASTM A269 yog tus qauv kev qhia tshwj xeeb tshaj tawm los ntawm American Society for Testing and Materials (ASTM) uas npog seamless thiab welded austenitic stainless hlau tubing rau kev pabcuam dav dav. Nov yog cov ntsiab lus tseem ceeb ntawm ASTM A269:
Scope: Cov lus qhia tshwj xeeb suav nrog qib ntawm nominal-phab ntsa-thickness, stainless hlau tubing npaj rau kev tiv thaiv corrosion-tiv taus thiab qis- lossis kub-kev pabcuam.
Qhov ntau thiab tsawg thiab Thicknesses: Cov tubing qhov ntau thiab tsawg thiab thicknesses feem ntau muab tso rau hauv qhov kev qhia tshwj xeeb no yog 1⁄4 nti [6.4 mm] hauv txoj kab uas hla thiab loj dua, nrog rau phab ntsa nominal-thickness ntawm 0.020 nti [0.51 mm] thiab hnyav dua.
Mechanical Properties: Cov cuab yeej cuab tam yuav tsum tsis txhob siv rau tubing me dua 1⁄8 nti [3.2 mm] hauv txoj kab uas hla lossis 0.015 nti [0.38 mm] hauv thickness.
Optional Supplementary Requirements: Cov lus qhia tshwj xeeb muab cov kev xav tau ntxiv uas tuaj yeem suav nrog yog tias xav tau, thiab cov no yuav tsum tau teev nyob rau hauv qhov kev txiav txim.
Chav ntsuas ntsuas: Cov txiaj ntsig tau muab rau hauv ob qho tib si SI units thiab inch-phaus units, thiab txhua qhov system yuav tsum siv nws tus kheej. Kev sib xyaw cov txiaj ntsig los ntawm ob lub tshuab yuav ua rau tsis ua raws li tus qauv.
Cov ntaub ntawv siv: Cov lus qhia tshwj xeeb hais txog lwm cov qauv ASTM, xws li A262, A480 / A480M, A632, A1016 / A1016M, thiab E527, nrog rau ASME B31.3 thiab SAE J1086.
Ordering Information: Kev txiav txim rau cov khoom raws li qhov tshwj xeeb no yuav tsum muaj cov ntsiab lus tsim nyog los piav qhia cov khoom xav tau.
Standard Development: Tus qauv tau hloov kho raws sij hawm los cuam tshuam cov kev hloov pauv ntawm cov khoom siv tshwj xeeb thiab kev xav tau ntawm kev lag luam, nrog rau qhov tseeb version yog ASTM A269 / A269M-24.
ASTM A269 ua kom zoo thiab sib xws ntawm austenitic stainless hlau tubing, uas yog siv rau hauv ntau yam kev lag luam, suav nrog kev ua tshuaj, roj thiab roj, kev ua zaub mov, thiab khoom siv kho mob.
