ASTM A242 kila

ʻO ka  ASTM A242 kikoʻī ka kikoʻī maʻamau  no ka ikaika haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa kiʻekiʻe kiʻekiʻe no nā lālā hoʻolālā kahi mea nui e mālama ai i ke kaumaha a me ke kū ʻana o ka corrosion i ka lewa. Hōʻike ʻia nā koi waiwai mīkini e  ʻano huahana (nā papa a me nā kaola, a me nā ʻano hana) a me ka mānoanoa.

Loaʻa i ke kila ASTM A242 ke kūpaʻa corrosion o ka lewa
ʻO ka pā kila ma lalo o ka maʻamau ASTM A242 i kapa ʻia ʻo ka pā kila weathering, i kuhikuhi ʻia i ke kila semi-kiled a i ʻole i pepehi ʻia. Loaʻa iā ia ke kūpaʻa corrosion maikaʻi i hiki ke hoʻohana ʻia ke kila ma nā wahi hana he nui.

ʻOi aku ka maikaʻi o ke kila hoʻoheheʻe ʻana o ASTM A242 ma mua o ke kila kalapona me ke keleawe a i ʻole ke keleawe i hoʻohui ʻia.

Waiwai Mechanical A242:
Uku:
70 ksi min (3/4 a lalo), 67 ksi min (3/4-1.5) 63 ksi min (ma luna o 1.5-4)
Hāʻawi:
50 ksi min (3/4 a lalo), 46 ksi min (3/4-1.5) 42 ksi min (ma luna o 1.5-4)
Elongation:
16% min i ka 8” 19% min i 2” (no nā papa ʻoi aku ka laulā ma mua o 24”)

Hoʻohui Kimia No Corten Steel ASTM A242 Type 1 Plate & Sheet

	Corten – A	ASTM 588 Papa A	ASTM 242 TYPE -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
Silika	0.25-0.75	0.30-0.65	0.25-0.40	0.28-0.72
Nickel, max	0.65	0.40	–	0.20-0.49
Chromium	0.50-1.25	0.40-065	–	0.30-0.50
Molybdenum, max	–	–	–	–
keleawe	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

Nā waiwai mīkini o ke kila corten ASTM A242 Type 1 papa & Pepa

	Ikaika U'i	Min. Lae Hua	ʻO ka lōʻihi
CORTEN A	[470 – 630 MPa]	[355 MPa]	20 % min
ASTM 588 GR. A	[485 MPa]	[345 MPa]	21% min
ASTM 242 TYPE -1	[480 MPa]	[345 MPa]	16% min
IRSM 41-97	[480 MPa]	[340 MPa]	21% min