ASTM A992 ni iki?

ItsindaASTM A992Ibisobanuro bya /A992M -11 (2015) bigena ibice by'icyuma gikozwe mu byuma bizingiye bikoreshwa mu nyubako, mu nyubako z'ibiraro, no mu zindi nyubako zikunze gukoreshwa. Ibipimo ngenderwaho bigena ingano ikoreshwa mu kugena imiterere y'ibinyabutabire ikenewe mu gusesengura ubushyuhe nka: karuboni, manganese, fosifore, sulfur, vanadium, titaniyumu, nikeli, chromium, molybdenum, niobiyumu, na umuringa. Ibipimo ngenderwaho binagaragaza imiterere yo gukanda ikenewe mu igerageza ryo gukanda nk'imbaraga z'umusaruro, imbaraga zo gukanda, no kurekura.

ASTM A992(Fy = 50 ksi, Fu = 65 ksi) niyo miterere ikundwa cyane ku bice bya flange nini none ubu isimburaASTM A36naA572Icyiciro cya 50. ASTM A992/A992M -11 (2015) ifite ibyiza byinshi bitandukanye: igaragaza ubushobozi bwo gukora ibintu, ari na cyo gipimo ntarengwa cyo gukora ku musaruro cya 0.85; byongeye kandi, ku gaciro ka karubone kagera kuri 0.5 ku ijana, igaragaza ko ubushobozi bwo gukora ibintu ari 0.85 ku ijana. , yongera ubushobozi bwo gusudira icyuma ku gaciro ka karubone kagera kuri 0.45 (0.47 ku miterere itanu iri mu Itsinda rya 4); kandi ASTM A992/A992M -11 (2015) ikoreshwa ku bwoko bwose bw'imiterere y'icyuma gishyushye.

Itandukaniro riri hagati y'ibikoresho bya ASTM A572 Grade 50 n'ibikoresho bya ASTM A992 Grade
Ibikoresho bya ASTM A572 Grade 50 bisa n'ibikoresho bya ASTM A992 ariko hari itandukaniro. Ibice byinshi bya flange binini bikoreshwa muri iki gihe ni ASTM A992 grade. Nubwo ASTM A992 na ASTM A572 Grade 50 muri rusange ari bimwe, ASTM A992 ni nziza mu bijyanye n'imiterere ya shimi n'imicungire y'imiterere ya mekanike.

ASTM A992 ifite agaciro katoroshye k’umusaruro n’agaciro katoroshye k’umusaruro, ndetse n’igipimo cy’imbaraga zato cyane k’umusaruro ugereranije n’ubunini bw’umusaruro ndetse n’agaciro ntarengwa k’umusaruro kangana na karuboni. Urwego rwa ASTM A992 rurahendutse kugura ugereranyije na ASTM A572 Icyiciro cya 50 (n’urwego rwa ASTM A36) ku bice binini bya flange.