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ASTM A572-50 karfe da katako - girman IPN.
A572-50 karfe i beam ana amfani da ko'ina wajen yin gini & aikace-aikacen gini don shi na iya samar da ƙarin ƙarfi kowane raka'a na nauyi. Ƙananan abun ciki na abubuwan gami irin su columbium & vanadium yana haɓaka kaddarorin cikin ƙarfi da lalata yanayi. Sakamakon babban ƙarfinsa na 50,000 ksi ƙarfin amfanin ƙasa, sassan A572-50 karfe I suna ƙara maye gurbin katako na ƙarfe na carbon na yau da kullun kamar A36 wanda yakamata ya zama mai kauri don biyan buƙatun ƙarfin.
Ana samun sashin ASTM 572 Karfe I a wasu maki kamar 42, 55 & 60. Da fatan za a nemo takamaiman abubuwan sinadaran a cikin teburin da ke ƙasa.
Bayanin samfur:
| Abu | Daraja | Carbon, max, % | Manganese, max, % | Silicon, max, % | Phosphorus, max, % | Sulfur, max, % |
| A572 karfe katako | 42 | 0.21 | 1.35 | 0.40 | 0.04 | 0.05 |
| 50 | 0.23 | 1.35 | 0.40 | 0.04 | 0.05 | |
| 55 | 0.25 | 1.35 | 0.40 | 0.04 | 0.05 |
| Abu | Daraja | Matsayin Haɓaka, min, ksi [MPa] | Ƙarfin ɗamara, min, ksi [MPa] |
| A572 karfe katako | 42 | 42 [290] | 60 [415] |
| 50 | 50 [345] | 65 [450] | |
| 55 | 55 [380] | 70 [485] |
| Abu | Nauyi (kg/m) | Zurfin (mm) | Nisa (mm) | Kaurin yanar gizo (mm) | Kaurin Flange (mm) |
| Farashin IPE80 | 6.0 | 80 | 46 | 3.8 | 5.2 |
| Farashin IPE100 | 8.1 | 100 | 55 | 4.1 | 5.7 |
| Farashin IPE120 | 10.4 | 120 | 64 | 4.4 | 6.3 |
| Farashin IPE140 | 12.9 | 140 | 73 | 4.7 | 6.9 |
| Farashin IPE160 | 15.8 | 160 | 82 | 5.0 | 7.4 |
| Farashin IPE180 | 18.8 | 180 | 91 | 5.3 | 8.0 |
| Farashin IPE200 | 22.4 | 200 | 100 | 5.6 | 8.5 |
| Farashin IPE220 | 26.2 | 220 | 110 | 5.9 | 9.2 |
| Farashin IPE240 | 30.7 | 240 | 120 | 6.2 | 9.8 |
| Farashin IPE270 | 36.1 | 270 | 135 | 6.6 | 10.2 |
| Farashin IPE300 | 42.2 | 300 | 150 | 7.1 | 10.7 |
| Farashin IPE330 | 49.1 | 330 | 160 | 7.5 | 11.5 |
| Farashin IPE360 | 57.1 | 360 | 170 | 8 | 12.7 |
| Farashin IPE400 | 66.3 | 400 | 180 | 8.6 | 13.6 |
| Farashin IPE450 | 79.1 | 450 | 190 | 9.4 | 14.6 |
| Farashin IPE500 | 90.7 | 500 | 200 | 10.2 | 16 |
| Farashin IPE550 | 106.0 | 550 | 210 | 11.2 | 17.2 |
| Farashin IPE600 | 124.4 | 600 | 220 | 12 | 19 |
| Abu | Nauyi (kg/m) | Zurfin (mm) | Nisa (mm) | Kaurin yanar gizo (mm) | Kaurin Flange (mm) |
| Farashin IPN80 | 5.9 | 80 | 42 | 3.9 | 5.9 |
| Farashin IPN100 | 8.3 | 100 | 50 | 4.5 | 6.8 |
| Farashin IPN120 | 11.1 | 120 | 58 | 5.1 | 7.7 |
| Saukewa: IPN140 | 14.3 | 140 | 66 | 5.7 | 8.6 |
| Saukewa: IPN160 | 17.9 | 160 | 74 | 6.3 | 9.5 |
| Farashin IPN180 | 21.9 | 180 | 82 | 6.9 | 10.4 |
| Farashin IPN200 | 26.2 | 200 | 90 | 7.5 | 11.3 |
| Saukewa: IPN220 | 31.1 | 220 | 98 | 8.1 | 12.2 |
| Saukewa: IPN240 | 36.2 | 240 | 106 | 8.7 | 13.1 |
| Saukewa: IPN260 | 41.9 | 260 | 113 | 9.4 | 14.1 |
| Saukewa: IPN280 | 47.9 | 280 | 119 | 10.1 | 15.2 |
| Farashin IPN300 | 54.2 | 300 | 125 | 10.8 | 16.2 |
| Saukewa: IPN320 | 61.0 | 320 | 131 | 11.5 | 17.3 |
| Saukewa: IPN340 | 68.0 | 340 | 137 | 12.2 | 18.3 |
| Saukewa: IPN360 | 76.1 | 360 | 143 | 13 | 19.5 |
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