U'amea fa'a'au'au N-155
| U'amea fa'a'ofuofu | elemene | C | Si | Mn | S | P | Ni | Cr | Co | N | Fe | Cu | W |
| N-155 u'amea fa'afefiloi | Min | 0.08 | 1.0 | 19.0 | 20.0 | 18.5 | 0.1 | 2.00 | |||||
| Maualuga | 0.16 | 1.0 | 2.0 | 0.03 | 0.04 | 21.0 | 22.5 | 21.0 | 0.2 | Paleni | 0.50 | 3.00 | |
| Oiina | Numera:0.75~1.25, Mo:2.5~3.5; | ||||||||||||
| Tulaga o Aolly | Malosiaga o le tensileRmMpa min | Fa'aloloaA 5minute% |
| fa'a'aisa | 689~965 | 40 |
| Mafiafiakalama/senitimi3 | Tulaga e liusuavai ai℃ |
| 8.245 | 1288~1354 |
Pepa/Ipu -AMS 5532
Pa/Fa'apala -AMS 5768 AMS 5769
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