ASTM A283 Pepa uamea carbon

ASTM A283 ipu uamea o lo'o fa'aalia i lalo le malosi ma'ale'ale malosi kaponi ipu u'amea lelei fa'atulagaina. E fa 'ese'ese masani, o lo'o fa'atusaina ta'itasi o se mea 'ese'ese. O le vaega o meafaitino o lo'o i lalo o lo'o fa'aalia ai fa'asologa o lo'o aofia uma ai mea eseese.

O lenei faʻamatalaga e aofia ai faʻailoga e fa o ipu uamea kaponi o le faʻatulagaina lelei mo le faʻaogaina lautele. O fa'ata'ita'iga u'amea e tatau ona fa'afefeteina e ala ile ogaumu fa'aeletise. E tatau ona faia le su'esu'ega o le vevela ma le oloa lea e tatau ona ogatusa ai mea uamea ma mea e mana'omia o vaila'au o le carbon, manganese, phosphorus, sulfur, silicon, ma le 'apamemea. O fa'ata'ita'iga u'amea e tatau fo'i ona fa'ata'ita'iina fa'ata'ita'iga ma'i ma e tatau ona fa'atatau i tau mana'omia o le malosi mālosi, fua fa'atatau, ma le fa'aumiumi.

ASTM A283 Meatotino Kemisi

	Vasega A	Vasega B	Vasega C	Vasega D
Carbon, max	0.14	0.17	0.24	0.27
Manganese, max	0.90	0.90	0.90	0.90
Phosphorus, max	0.035	0.035	0.035	0.035
Sulfur, max	0.04	0.04	0.04	0.04
Silicon Papatusi 1 1/2 i totonu ma lalo, maualuga Papatusi i luga ole 1 1/2 inisi	0.40 0.15-0.40	0.40 0.15-0.40	0.40 0.15-0.40	0.40 0.15-0.40
Kopa min% pe ​​a fa'amaoti apamemea	0.20	0.20	0.20	0.20

ASTM A283 Meatotino Fa'ainisinia

Vasega A	Vasega B	Vasega C	Vasega D
Malosi o le Tensile:	45,000 -60,000 psi [310 - 415 MPa]	50,000 -65,000 psi [345 - 450 MPa]	55,000 75,000 psi [380 - 515 MPa]	60,000 -80,000 psi [415 - 550 MPa]
Min. Fa'ailoga e maua ai:	24,000psi [165 MPa]	27,000psi [185 MPa]	30,000psi [205 MPa]	33,000psi [ 230 MPa]
Fa'atele ile 8":	27% min	25% min	22% min	20% min
Elongation i le 2":	38% min	28% min	25% min	23% min

ASTM A283 carbon uamea o se uʻamea uʻamea, e faʻavasegaina o se carbon steel. Ole fa'amatalaga u'amea lea e aofia ai fa'ailoga e fa o ipu u'amea maualalo kaponi o le fa'atulagaina lelei mo le fa'aogaina lautele. Vasega A, B, C ma le D.