ASTM A242 uamea

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Folasaga o oloa Fa'amatalaga Fa'atekinisi

Folasaga o oloa

O le ASTM A242 faʻamatalaga o le faʻamatalaga masani mo le maualuga-maualalo-maumea faʻapipiʻi uʻamea fausaga mo tagata faʻapipiʻi e taua tele le faʻasaoina o le mamafa ma le faʻafefe o le ea. O mana'oga fa'ainisinia o lo'o fa'amaoti mai i ituaiga oloa (papa ma fa'amau, ma Fa'ailoga fa'atulagaina) ma le mafiafia.

ASTM A242 uamea o loʻo i ai le faʻafefe o le ea
O le ipu uʻamea i lalo o le ASTM A242 faʻataʻitaʻiga e taʻua foi o le uʻamea uʻamea uʻamea, e taʻua i le semi-fasioti poʻo le oti atoa. E lelei le fa'afefe o le ea ina ia mafai ai ona fa'aoga le sila i le tele o siosiomaga faigaluega.

ASTM A242 weathering steel e matua sili atu le lelei nai lo le carbon structural steel ma pe leai foi se kopa faaopoopo-i totonu.

Mea fa'ainisinia A242:
Ta'alo:
70 ksi min (3/4 ma lalo), 67 ksi min (3/4-1.5) 63 ksi min (sili atu i le 1.5-4)
fua:
50 ksi min (3/4 ma lalo), 46 ksi min (3/4-1.5) 42 ksi min (sili atu i le 1.5-4)
Fa'aumiumi:
16% min i le 8" 19% min i le 2" (mo papatusi lautele nai lo le 24")

Fa'amatalaga Fa'atekinisi

Fa'ainumera Fa'aigoa Mo Corten Uamea ASTM A242 Ituaiga 1 Plate & Pepa

	Corten – A	ASTM 588 Vasega A	ASTM 242 ITIGA -1	IRSM 41 -97
Carbon, Max	0.12	0.19	0.15	0.10
Manganese	0.20-50	0.80-1.25	1.00	0.25-0.45
Phosphorus	0.07-0.15	0.04	0.15	0.07-0.11
Sulfur, max	0.030	0.05	0.05	0.030
Silicon	0.25-0.75	0.30-0.65	0.25-0.40	0.28-0.72
Nikeli, maualuga	0.65	0.40	–	0.20-0.49
Chromium	0.50-1.25	0.40-065	–	0.30-0.50
Molybdenum, maualuga	–	–	–	–
Kopa	0.25-0.55	0.25-0.40	0.20 min	0.30-0.39
Vanadium	–	0.02-0.10	–	0.050
Alumini	–	…	–	0.030

Mea fa'ainisinia o u'amea corten ASTM A242 Type 1 plates & Sheets

	Malosi Tetele	Min. Totogi Fa'atosina	Fa'aumiumi
CORTEN A	[470 – 630 MPa]	[355 MPa]	20 % min
ASTM 588 GR. A	[485 MPa]	[345 MPa]	21% min
ASTM 242 ITIGA -1	[480 MPa]	[345 MPa]	16% min
IRSM 41-97	[480 MPa]	[340 MPa]	21% min

*A242 u'amea talosaga:

A242 ipu uamea e mafai ona faʻaaogaina i le gaosiga o taʻavale, alalaupapa, olo, fausiaina o tane, koneteina, fausaga faʻavaa, faʻatasi ai ma manaʻoga o le uelo, poʻo le faʻamau.

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