Ipleyiti yentsimbi ye-ASTM A709

I-ASTM A709 yiNgcaciso yoMgangatho weStructural Steel yeeBridges kwaye ibandakanya ikhabhoni, i-high-high-high-high-alloy alloy, kunye ne-alloy ecinyiweyo kunye ne- tempered alloy steels esetyenziswa njengeepleyiti zesakhiwo ekwakhiweni kweebhulorho. I-Gnee ibonelela ngala mabakala amahlanu alandelayo e-A709; 36, 50, 50W, HPS 50W kunye ne-HPS 70W. Amabanga amathathu emozulu ye-50W, HPS 50W, kunye ne-HPS 70W  bane-ASTM G101 ephuculweyo ye-Atmospheric Corrosion Resistance Index ye-≥6.0.

A709 iBanga lama-36 Ukwakheka kweekhemikhali Uhlalutyo lobushushu

Ubukhulu mm	Intsimbi yolwakhiwo	Ipleyiti yentsimbi				Round Bar steel
		≤20	20～≤40	40～≤65	65～≤100	≤20	20～≤40	40～≤100
C,ubuninzi,%	0.25	0.25	0.25	0.25	0.27	0.26	0.27	0.28
Mnu,%	…	…	0.80-1.20	0.80-1.20	0.80-1.20	…	0.60-0.90	0.60-0.90
P,ubuninzi,%	0.04	0.04	0.04	0.04	0.04	0.04	0.04	0.04
S,ubuninzi,%	0.05	0.05	0.05	0.05	0.05	0.05	0.05	0.05
Si	0.40ubuninzi	0.40ubuninzi	0.40ubuninzi	0.15-0.40	0.15-0.40	0.40ubuninzi	0.40ubuninzi	0.40ubuninzi
Cu,min,%	0.20	0.20	0.20	0.20	0.20	0.20	0.20	0.20

A 709 Gr. 36 ipropati yoomatshini

IBanga le-A709	Zingqindilili mm	Yima kancinci [MPa]	I-Tensile [MPa]	Elongtation Min %				ukunciphisa Min %	HB
				Ipleyiti yentsimbi		Intsimbi yolwakhiwo
				8ngaphakathi[200mm]	2ngaphakathi[50mm]	8ngaphakathi[200mm]	2ngaphakathi[50mm]
36[250]	≤100	[250] imiz	400-550	20	23	20	21	…	…
		[250] imiz	400min	…	…	20	19	…	…
50[345]	≤100	345min	450min	18	21	18	21F	…	…
50S[345S]	G	345-450HI	450minH	…	…	18	21	…	…
50W[345W] I-HPS50W[HPS345W]	≤100	345min	485min	18	21	18	21J	…	…
I-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	…