ASTM A709 ipu uamea

ASTM A709 / A709M Fa'amatalaga Fa'asinomaga mo le Kaponi ma le Malosi Maualuga Fa'ata'otoga U'amea Maualalo, Papatusi, ma Pa ma Pa'u u'amea Fa'ata'oto mo Alalaupapa Oloa ma Au'aunaga / Standards & Publications / Standards Oloa

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Fa'amatalaga o oloa Su'ega vaila'au & meatotino fa'ainisinia

Fa'amatalaga o oloa

O le ASTM A709 o le Fa'amatalaga Fa'asinomaga mo Structural Steel mo Alalaupapa ma e aofia ai le kaponi, malosi-maualalo-alloy, ma tineia ma fa'afefeteina u'amea u'amea fa'aaogaina e fai ma laupapa faufale i le fausiaina o alalaupapa. Ua ofoina atu e Gnee ia togi e lima o le A709; 36, 50, 50W, HPS 50W ma HPS 70W. O togi e tolu o le tau o le 50W, HPS 50W, ma le HPS 70W o loʻo iai le ASTM G101 faʻaleleia le Atmospheric Corrosion Resistance Index o le ≥6.0.

Su'ega vaila'au & meatotino fa'ainisinia

A709 Vasega 36 Su'ega vaila'au Su'esu'ega vevela

Mafiafia mm	Uamea faufale	Papa Uamea				Uamea Taamilomilo Pa
Mafiafia mm	Uamea faufale	≤20	20～≤40	40～≤65	65～≤100	≤20	20～≤40	40～≤100
C, maualuga，%	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, maualuga,%	0.05	0.05	0.05	0.05	0.05	0.05	0.05	0.05
Si	0.40 maualuga	0.40 maualuga	0.40 maualuga	0.15-0.40	0.15-0.40	0.40 maualuga	0.40 maualuga	0.40 maualuga
Ku, min,%	0.20	0.20	0.20	0.20	0.20	0.20	0.20	0.20

O le 709 Gr. 36 mea tau masini

A709 Vasega	mafiafia mm	Tuuina atu [MPa]	Ta'alo [MPa]	Fa'aumi ole Min %				fa'aitiitiga Min %	HB
				Papa Uamea		Uamea faufale
				8in[200mm]	2in[50mm]	8in[200mm]	2in[50mm]
36[250]	≤100	[250]min	400-550	20	23	20	21	…	…
36[250]		[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	…