Khoom Description
A36 yog dab tsi:
ASTM A36 steel, tsim los ntawm ASTM International, yog ib qho kev siv thiab siv dav siv cov qauv hlau. Nws raug cais raws li qis- carbon, kub- dov steel.
ASTM A36 nthuav dav weldability zoo heev thiab tsim nyog rau cov txheej txheem xws li xuas nrig ntaus, sib tsoo, drilling, tapping, thiab machining. Tsis zoo li siab -kev ua tau zoo alloy steels, cov khoom ntawm cov qauv steel phaj no ua rau nws siv dav hauv ntau yam kev siv.
A588 yog dab tsi:
A588 nthuav tawm ntau yam khoom zoo, xws li elongation Ntau dua lossis sib npaug li 20%, tsis tshua muaj zog yield zog Ntau dua lossis sib npaug li 345 MPa, thiab lub zog tensile xws li 485 txog 620 MPa.
Nws tseem muaj zog tiv thaiv kev ntxhov siab corrosion cracking thiab pitting corrosion, zoo tiv thaiv corrosion cracking thiab pitting. Nws zoo heev atmospheric corrosion kuj ua rau nws tiv taus oxidation, tshuaj lom gases, txo cov tshuaj tiv thaiv, thiab lwm yam tshuaj reactive, yog li ncua cov txheej txheem lifespan.
Dab tsi yog qhov txawv ntawm ASTM A36 thiab A588
ASTM A36 thiab ASTM A588 yog ob qhov tshwj xeeb steel tsim rau kev siv sib txawv. Hauv qab no yog qhov sib txawv ntawm ASTM A36 thiab ASTM A588:
Kev sib xyaw:
ASTM A36: Tsawg- carbon hlau, feem ntau tsis muaj ntau tshaj 0.29% carbon, 0.8-1.2% manganese, nrog rau phosphorus Tsawg dua lossis sib npaug li 0.04%, sulfur Tsawg dua lossis sib npaug li 0.05%, silicon 0.15-0.40%, thiab cov ntsiab lus sib npaug ntawm 0.15-0.40%.
ASTM A588: Siab- zog qis- alloy structural steel feem ntau muaj cov hlau, chromium (0.40–0.80%), npib tsib xee (0.40–0.70%), thiab tooj liab (0.20–0.55%), nrog rau cov manganese me, silicon thiab sulfur.
Lub zog thiab Mechanical Properties:
ASTM A36: Yam tsawg kawg nkaus yield zog 250 MPa, yam tsawg kawg nkaus tensile zog 400-550 MPa, elongation Ntau tshaj los yog sib npaug rau 20%. Exhibits zoo ductility, yooj yim ua, vuam, thiab sib sau.
ASTM A588: Muaj lub zog siab dua li ASTM A36, nrog qhov tsawg kawg nkaus lub zog ntawm 345 MPa, lub zog tensile yam tsawg kawg nkaus ntawm 485-620 MPa, thiab elongation Ntau dua lossis sib npaug li 20%. Nws nthuav tawm zoo heev toughness thiab cuam tshuam lub zog. Vim nws cov alloy muaj pes tsawg leeg, ASTM A588 ua rau pom kev txhim kho atmospheric corrosion kuj.
Corrosion Resistance:
ASTM A36: Tsis yog tsim tshwj xeeb rau corrosive ib puag ncig; tej zaum yuav xav tau cov txheej txheem ntxiv los yog kev tiv thaiv kev tiv thaiv hauv cov xwm txheej corrosive.
ASTM A588: Tshwj xeeb engineered los muab superior atmospheric corrosion kuj. Nws nto tsim cov txheej txheem oxide tiv thaiv, ua tiav qhov ntsuas huab cua tiv thaiv corrosion (ASTM G101 test) Ntau dua lossis sib npaug rau 6.0, ua haujlwm tau zoo rau kev pabcuam sab nraum zoov.
Daim ntawv thov:
ASTM A36: Siv dav hauv kev siv cov qauv siv xws li cov tsev, txuas hniav, thiab cov khoom siv tshuab.
ASTM A588: Feem ntau siv nyob rau hauv cov qauv sab nraum zoov xws li ntev - txuas txuas, lub tsev facades, xa cov yees, thiab cov tsheb thauj khoom- engineering tej yaam num raug cuam tshuam rau tej yam ntuj tso ib puag ncig lub sij hawm ntev.
Hu rau tam sim no kom tau txais A588 Quote
Nws yog ib qho tseem ceeb kom nco ntsoov tias cov kev sib txawv no qhia txog qhov sib txawv ntawm ASTM A36 thiabASTM A588 Cov Lus Qhia Tshwj Xeeb. Thaum xaiv cov qib steel tsim nyog, xav txog qhov kev xav tau ntawm qhov kev thauj khoom, ib puag ncig puag ncig, phaj thickness, thiab cov txheej txheem dabtsi yog khoov.
Tham nrog cov kws tshaj lij lossis cov neeg muag khoom steel kom paub meej tias kev xaiv cov khoom raug.
