Tulaga Fa'ainumera Manaomia，%，
C: ≤0.30
Mn: 0.29-1.06
P: ≤0.025
S: ≤0.025
Si: ≥0.10
Ni: ≤0.40
Cr: ≤0.30
Ku: ≤0.40
V: ≤0.08
Nb: ≤0.02
Mo: ≤0.12
*E mafai ona fa'atuputeleina i le 0.05% le fa'aputuga o le manganese mo ta'i 0.01% fa'aitiitia i totonu o le kaponi e o'o atu i le 1.35%.
** Niobium anotusi, faʻavae i luga o maliega, e mafai ona faʻateleina i le 0.05% mo suʻesuʻega faʻafefe ma 0.06% mo suʻesuʻega o oloa maeʻa.
Manaoga o le vevela:
1. Fa'atonu i luga ole 815°C.
2. Fa'atonu i luga ole 815°C, ona ita lea.
3. Fa'avela vevela i le va o le 845 ma le 945°C, ona fa'alili lea i le ogaumu i luga a'e o le 845°C (mo na'o paipa e leai ni mea).
4. Masini ona fa'afefeteina e pei ona ta'ua i luga Point 3.
5. Fa'ama'a'a ona fa'afefeteina lea i luga a'e o le 815°C.
Manaoga fa'ainisinia:
Malosiaga maua: ≥240Mpa
Malosiaga tensile: ≥415Mpa
Elongation:
| Fa'ata'ita'iga | A333 GR.6 | |
| Tusa'o | Fa'asagatau | |
| Tau aupito maualalo o se li'o masanifaʻataʻitaʻiga poʻo se faʻataʻitaʻiga laʻititi laʻititi ma se faʻailoga mamao o le 4D | 22 | 12 |
| Fa'ata'ita'i fa'ata'ita'i fa'ata'ita'i fa'atasi ma le mafiafia puipui o le 5/16 inisi (7.94 mm) ma sili atu, ma fa'ata'ita'iga laiti uma na fa'ata'ita'iina i totonu.fa'asaga atoa ile 2 inisi (50 mm)fa'ailoga | 30 | 16.5 |
| Fa'ata'ita'i fa'ata'ita'i e o'o i le 5/16 ini. (7.94 mm) mafiafia puipui i le 2 inisi (50 mm) fa'ailoga mamao (lautele fa'ata'ita'i 1/2 ini., 12.7 mm) | A | A |
A Fa'ataga se fa'aitiitiga 1.5% i le fa'aumiumi fa'aumiumi ma le fa'aitiitiga 1.0% o le fa'alavalava fa'alava mo ta'itasi 1/32 in. (0.79 mm) o le mafiafia o le puipui e o'o atu i le 5/16 in. (7.94 mm) mai le tau fa'aumiumi o lo'o lisi atu i luga.
Su'ega o A'afiaga
Su'ega vevela: -45°C
A fa'aogaina fa'ata'ita'iga la'ititi o a'afiaga a le Charpy ma e la'ititi ifo i le 80% ole mafiafia ole meafaitino, e tatau ona fa'aoga le vevela ole su'ega maualalo e pei ona fa'atatau ile Laulau 6 ole fa'amatalaga ASTM A333.
| Fa'ata'ita'iga, mm | La'ititi la'ititi o fa'ata'ita'iga e tolu | Tau aupito maualalo o lugae of o faataitaiga e tolu |
| 10 × 10 | 18 | 14 |
| 10 × 7.5 | 14 | 11 |
| 10 × 6.67 | 12 | 9 |
| 10 × 5 | 9 | 7 |
| 10 × 3.33 | 7 | 4 |
| 10 × 2.5 | 5 | 4 |
O paipa u'amea e tatau ona fa'ata'ita'iina i le hydrostatically po'o le le fa'aleagaina (eddy current po'o le ultrasonic) i luga ole lala ma lea lala.
Fa'apalepale o le pito i fafo o le paipa u'amea:
| Vaitafe fafo, mm | faapalepale lelei,mm | faapalepale leaga,mm |
| 10.3-48.3 | 0.4 | 0.4 |
| 48.3＜D≤114.3 | 0.8 | 0.8 |
| 114.3＜D≤219.10 | 1.6 | 0.8 |
| 219.1＜D≤457.2 | 2.4 | 0.8 |
| 457.2＜D≤660 | 3.2 | 0.8 |
| 660＜D≤864 | 4.0 | 0.8 |
| 864＜D≤1219 | 4.8 | 0.8 |
Fa'apalepale mafiafia puipui o paipa u'amea:
So'o se mea e le tatau ona la'ititi ifo i le 12.5% ole mafiafia ole puipui.Afai e fa'atonuina le mafiafia aupito maualalo o puipui, e leai se vaega e tatau ona la'ititi nai lo le mafiafia puipui e mana'omia.
Taimi meli: Feb-22-2024