Precision Engineering nrog ASTM A519 Alloy Tubing
ASTM A519 Cov Lus Qhia Tshwj Xeebyog tus qauv specification rau ntau qib ntawm carbon thiab alloy steel seamless mechanical tubing. Tsis zoo li cov kav dej los yog cov kav dej siab, A519 tsom rau qhov "kawg-siv" daim ntawv thov siv tshuab. Qhov kev qhia tshwj xeeb no tso cai rau kev ua siab ntev ntev ntawm phab ntsa tuab thiab sab nraud, ua rau nws xaiv qhov tseem ceeb tshaj plaws rau cov khoom uas xav tau siab - precision machining, siab torsional lub zog, thiab cov lus teb rau kev kho cua sov.
Common Alloy Qib: 4100 thiab 4300 Series
Thaum A519 npog cov hlau, nws muaj nuj nqis tshaj rau nwsSiab -Hloov Alloyqib:
4130 / 4140 (Chrome-Moly):Muab siab hardenability thiab toughness. Qhov zoo tshaj plaws rau cov khoom siv hauv aerospace, kev sib tw thav duab, thiab siab - lub tog raj kheej roj.
4340 (Ni-Cr-}Mo):Triple- alloy steel muab ultra- lub zog siab thoob plaws hauv cov ntoo loj - ntu. Feem ntau nyob rau hauv hnyav machinery axles.
8620:Cov qib zoo carburizing siv rau cov iav thiab bushings xav tau ib qho nyuaj saum npoo thiab cov tub ntxhais tawv.
Mechanical Properties thiab Thermal Conditions
Mechanical tubing yog nkag rau hauv ntau yam xwm txheej kom haum rau kev tsim khoom tshwj xeeb:
| Qhov xwm txheej | Code | Cov txiaj ntsig engineering |
|---|---|---|
| Kub Tiav lawm | HF | Economical rau machining yooj yim. |
| Txias Drawn | CD | Maximum dimensional precision & nto tiav. |
| Kev ntxhov siab | SR | Tiv thaiv warping thaum lub sij hawm machining complex. |
| Annealed | A | Maximum ductility rau hnyav sib sau. |
| Li qub | N | Refined grain qauv rau uniform zog. |
Precision thiab Quality Control
A519 raj yog tshwj xeeb seamless, tsim los ntawm kub- tho cov khoom siv. Qhov no tshem tawm cov kev pheej hmoo ntawm weld seam thiab tso cai rau ib homogeneous grain qauv. Rau cov ntawv thov tseem ceeb, cov raj tau dhau 100% Eddy Tam sim no lossis Ultrasonic kuaj txhawm rau txheeb xyuas qhov tsis zoo ntawm qhov chaw thiab subsurface. Qhov txias- txheej txheem kos duab (CD) tuaj yeem ua tiav cov phab ntsa tuab kom nruj li +/- 5%, zoo dua li cov qauv txheej txheem.
FAQs
Puas yog A519 haum rau kev pabcuam siab?
Thaum technically muaj zog, A519 yog tus qauv siv tshuab. Txhawm rau tiv thaiv lub siab, cov kav dej yuav tsum tau lees paub rau A106, A335, lossis A312.
Kuv puas tuaj yeem txuas A 519 4140 tubing?
Yog lawm, tab sis nws yuav tsum muaj cov txheej txheem tshwj xeeb. Alloy steels muaj siab hardenability, yog li preheating thiab tswj txias yog yuav tsum tau los tiv thaiv HAZ cracking.
Qhov siab tshaj plaws txoj kab uas hla rau A519 yog dab tsi?
Seamless mechanical raj feem ntau muaj txog 12.75 nti OD.
'Ua Haujlwm Hardening' cuam tshuam li cas A519 CD tubes?
Qhov txias- txheej txheem kos duab ib txwm ua rau kom muaj txiaj ntsig thiab lub zog tensile, txawm tias nws txo qis elongation me ntsis.
Dab tsi yog qhov kam rau ua rau A519?
Tus qauv kam rau ua tau txhais nyob rau hauv ASTM A519 Tables, feem ntau ncav cuag +/- 0.1mm rau me me precision diameters.
