ASTM A572 xagal bir ah waa qayb kale oo xoog-sare leh, daawaha hoose (HSLA) qaybaha birta ee columbium-vanadium. Iyada oo ay ugu wacan tahay qadar yar oo ah columbium & walxaha alloy vanadium, xagasha birta A572 duuban ee kulul ayaa leh astaamo ka wanaagsan birta kaarboon A36. Marka hore, A572 waxay leedahay awood ka sarraysa A36 sida xoogga wax-soo-saarka iyo xoogga xajinta. Marka labaad, way fududahay in alxanka, la sameeyo iyo mashiinka.
A572 xagal bir xoog badan
Xaglaha birta galvanized & Pre-lacquered
A572 xagal bir ah ayaa leh codsiyo ballaaran sababtoo ah saamiga sare ee xoogga iyo miisaanka. Sababtoo ah kuma jiraan maaddo naxaas ah oo waxtar u leh iska caabbinta daxalka, A572 xaglaha birta qaab dhismeedka badanaa waa galvanized-kulul ama horay loo lacquered. Midabka rinjiyeynta waa codsigaaga.
A572 xagal bir ah sharaxaad:
Fiiro gaar ah: Cabbirrada birta xagal gaar ah ayaa diyaar ah haddii tirada dalabkaagu ka sarreeyo ugu yaraan.
A572 xagal bir ah sifooyinka & faa'iidooyinka:
Shayga | Darajo | Kaarboon, ugu badnaan, % | Manganese, ugu badnaan, % | Silikoon, ugu badnaan, % | Fosfooraska, ugu badnaan, % | Baaruud, ugu badnaan, % |
Xagalka Birta A572 | 42 | 0.21 | 1.35 | 0.40 | 0.04 | 0.05 |
50 | 0.23 | 1.35 | 0.40 | 0.04 | 0.05 | |
55 | 0.25 | 1.35 | 0.40 | 0.04 | 0.05 |
Shayga | Darajo | Dhibicda Wax-soosaarka, min, ksi [MPa] | Xooga Jimicsiga, min, ksi [MPa] |
Xagalka Birta A572 | 42 | 42 [290] | 60 [415] |
50 | 50 [345] | 65 [450] | |
55 | 55 [380] | 70 [485] |