ASTM A242 simbi

Mamiriro e ASTM A242 ndiwo akajairwa  yesimbi yakadzika-simba yakaderera-alloy structural simbi kunhengo dzemaumbirwo uko kwakakosha kuchengetedza huremu uye kusaita ngura mumhepo. Mechanical property inodiwa inotsanangurwa ne  product type (maplates and bars, and structural Shapes) uye nekukora.

ASTM A242 simbi ine atmospheric corrosion resistance
Iyo ndiro yesimbi iri pasi peASTM A242 yakajairwa zvakare inodaidzwa kuti weathering simbi ndiro, inoreva semi-akaurayiwa kana kuurayiwa zvizere simbi. Iyo ine yakanaka airspheric corrosion resistance saka simbi inogona kushandiswa munzvimbo dzakawanda dzekushanda.

ASTM A242 weathering simbi iri nani pane iyo kabhoni structural simbi ine kana isina mhangura yakawedzerwa mukati.

Mechanical zvivakwa A242:
Tensile:
70 ksi min (3/4 zvichidzika), 67 ksi min (3/4-1.5) 63 ksi min (kupfuura 1.5-4)
Goho:
50 ksi min (3/4 zvichidzika), 46 ksi min (3/4-1.5) 42 ksi min (kupfuura 1.5-4)
Elongation:
16% min mu8” 19% min mu2” (yemapureti akafara kupfuura 24”)

Kemikari Kuumbwa KweCorten Steel ASTM A242 Rudzi 1 Plate & Sheet

	Corten – A	ASTM 588 Giredhi 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
Sarufa, 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
Nickel, max	0.65	0.40	-	0.20-0.49
Chromium	0.50-1.25	0.40-065	-	0.30-0.50
Molybdenum, max	-	-	-	-
Mhangura	0.25-0.55	0.25-0.40	0.20 min	0.30-0.39
Vanadium	-	0.02-0.10	-	0.050
Aluminium	-	…	-	0.030

Mechanical properties ye corten steel ASTM A242 Type 1 mahwendefa & Sheets

	Tensile Simba	Min. Yield Point	Elongation
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