ASTM, izwi nka American Society for Testing and Materials, ni umuryango mpuzamahanga ufite ububasha mu bijyanye n’amabwiriza ugamije guteza imbere no gusohora amahame agenga inganda zitandukanye. Aya mahame atanga uburyo bumwe bwo gupima, ibisobanuro n’amabwiriza ku nganda zo muri Amerika. Aya mahame agamije kwemeza ireme, imikorere, n’umutekano w’ibicuruzwa n’ibikoresho no koroshya imikorere myiza y’ubucuruzi mpuzamahanga.
Ubutandukanye n'uburyo ibipimo bya ASTM bishyirwa mu bikorwa ni byinshi kandi bikubiyemo ibintu byinshi birimo, ariko ntibigarukira gusa kuri, siyansi y'ibikoresho, ubwubatsi, ubutabire, ubwubatsi bw'amashanyarazi, n'ubuhanga mu by'imashini. Ibipimo bya ASTM bikubiyemo ibintu byose kuva ku igeragezwa n'isuzuma ry'ibikoresho fatizo kugeza ku bisabwa n'ubuyobozi mu gihe cyo gushushanya, gukora no gukoresha ibicuruzwa.
ASTM A36/A36M:
Ibipimo ngenderwaho by'icyuma bikubiyemo ibisabwa ku byuma bikozwe mu bwubatsi, mu gukora no mu bindi bikorwa by'ubuhanga.
Isahani y'icyuma ya A36Amahame Ngenderwaho yo Gushyira mu Bikorwa
Igipimo ngenderwaho cyo gushyira mu bikorwa ASTM A36/A36M-03a, (kingana na kode ya ASME)
Icyapa cya A36gukoresha
Iri hame rikoreshwa ku biraro n'inyubako zifite inyubako zipfundikiye, zipfundikiye kandi zisudiye, ndetse n'ibice by'icyuma cya karuboni cy'ubwiza rusange, amasafuriya n'imigozi. Ingano y'icyuma ya A36 iratanga umusaruro wa 240MP, kandi iziyongera uko ibikoresho bingana kugira ngo umusaruro ugabanuke, bitewe n'ingano iri hagati ya karuboni, imikorere rusange y'ingufu, imbaraga, ubuziranenge n'ubusudiye n'ibindi bintu kugira ngo ubone imiterere myiza, ikoreshwa cyane.
Ibigize icyuma cya A36:
C: ≤ 0.25, Si ≤ 0.40, Mn: ≤ 0.80-1.20, P ≤ 0.04, S: ≤ 0.05, Cu ≥ 0.20 (igihe hateganyijwe ibikoresho by'icyuma kirimo umuringa).
Imiterere ya mekanike:
Ingufu z'umusaruro: ≥250.
Ingufu zo gukurura: 400-550.
Uburebure: ≥20.
Ibipimo ngenderwaho by'igihugu n'ibikoresho bya A36 bisa na Q235.
Igihe cyo kohereza: Kamena-24-2024
