Isahani ya ASTM A709

ASTM A709 ni Igipimo gisanzwe cyerekana ibyuma byubaka ibiraro kandi bikubiyemo karubone, imbaraga-nkeya-zivanze, hamwe n'ibyuma bizimya kandi byoroheje bikoreshwa nk'ibyapa byubaka mukubaka ibiraro. Gnee atanga amanota atanu akurikira ya A709; 36, 50, 50W, HPS 50W na HPS 70W. Ibyiciro bitatu byikirere bya 50W, HPS 50W, na HPS 70W bifite ASTM G101 byongerewe ingufu za Atmospheric Corrosion Resistance Index ya ≥6.0.

A709 Icyiciro cya 36 Ibigize imiti Isesengura ubushyuhe

Mm	Ibyuma byubaka	Isahani				Icyuma kizunguruka
		≤20	20 ≤ ≤40	40 ～ 65	65 ≤ 100	≤20	20 ≤ ≤40	40 ～ ≤100
C, max ，%	0.25	0.25	0.25	0.25	0.27	0.26	0.27	0.28
Mn,%	…	…	0.80-1.20	0.80-1.20	0.80-1.20	…	0.60-0.90	0.60-0.90
P, max,%	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04
S, max,%	0.05	0.05	0.05	0.05	0.05	0.05	0.05	0.05
Si	0.40max	0.40max	0.40max	0.15-0.40	0.15-0.40	0.40max	0.40max	0.40max
Cu, min,%	0.20	0.20	0.20	0.20	0.20	0.20	0.20	0.20

A 709 Gr. 36 ibikoresho bya mashini

A709 Icyiciro	Umubyimba mm	Tanga umusaruro [MPa]	Tensile [MPa]	Kurambura Min%				kugabanuka Min %	HB
				Isahani		Ibyuma byubaka
				8in [200mm]	2in [50mm]	8in [200mm]	2in [50mm]
36[250]	≤100	[250] min	400-550	20	23	20	21	…	…
		[250] min	400min	…	…	20	19	…	…
50[345]	≤100	345min	450min	18	21	18	21F	…	…
50S [345S]	G.	345-450HI	450minH	…	…	18	21	…	…
50W [345W] HPS50W [HPS345W]	≤100	345min	485min	18	21	18	21J	…	…
HPS70W [HPS485W]	≤100	485min	585-760	…	19K	…	…	…	…
100 [690], 100W [690W], HPS100W [HPS690W]	≤65	690minB	760-895	…	18K	…	…	L.	235-293M
100 [690], 100W [690W],	65-100	620minB	690-895	…	16K	…	…	L.	…