ASTM A283 Urupapuro rwicyuma

Icyuma cya ASTM A283 kiranga icyuma gito kandi giciriritse cyimbaraga za karubone icyuma cyiza. Ifite ibintu bine bihuriweho, buri kimwe kigaragara nkibikoresho bitandukanye. Igice cyimiterere yibice gikurikira cyerekana intera ikubiyemo ibintu byose bitandukanye.

Ibi bisobanuro bikubiyemo ibyiciro bine byibyuma bya karubone bifite ubuziranenge bwuburyo bukoreshwa muri rusange. Icyitegererezo cy'icyuma kigomba gushonga gitunganijwe hifashishijwe umuriro, ogisijeni shingiro, cyangwa itanura ry'amashanyarazi. Isesengura ry'ibicuruzwa n'ibicuruzwa bigomba gukorwa aho ibikoresho by'ibyuma bigomba kuba bihuye n'ibikoresho bya shimi bya karubone, manganese, fosifore, sulfure, silikoni, n'umuringa. Ingero z'icyuma nazo zigomba kwipimisha kandi zigomba guhuza n'indangagaciro zisabwa zingufu zingana, aho zitanga umusaruro, no kuramba.

ASTM A283 Ibiranga imiti

	Icyiciro A.	Icyiciro B.	Icyiciro C.	Icyiciro D.
Carbone, max	0.14	0.17	0.24	0.27
Manganese, max	0.90	0.90	0.90	0.90
Fosifore, max	0.035	0.035	0.035	0.035
Amazi meza	0.04	0.04	0.04	0.04
Silicon Isahani 1 1 / 2 muri no munsi, max Isahani irenga 1 1 / 2 muri	0.40 0.15-0.40	0.40 0.15-0.40	0.40 0.15-0.40	0.40 0.15-0.40
Umuringa min% mugihe ibyuma byumuringa byerekanwe	0.20	0.20	0.20	0.20

ASTM A283 Ibikoresho bya mashini

Icyiciro A.	Icyiciro B.	Icyiciro C.	Icyiciro D.
Imbaraga zikomeye:	45,000 -60,000 psi [310 - 415 MPa]	50.000 -65,000 psi [345 - 450 MPa]	55.000 75.000 psi [380 - 515 MPa]	60.000 -80,000 psi [415 - 550 MPa]
Min. Umusaruro:	24.000psi [165 MPa]	27.000psi [185 MPa]	30.000psi [205 MPa]	33.000psi [ 230 MPa]
Kurambura muri 8 ":	27% min	25% min	22% min	20% min
Kurambura muri 2 ":	38% min	28% min	25% min	23% min

ASTM A283 ibyuma bya karubone ni umusemburo wibyuma, byongeye gushyirwa mubyuma bya karubone. Nibisobanuro byibyuma bikubiyemo ibyiciro bine byicyuma gito cya karubone icyuma cyubaka muburyo rusange. Icyiciro A, B, C na D.