Ibisabwa mu miterere y'imiti, %,
C: ≤0.30
Mn: 0.29-1.06
P: ≤0.025
S: ≤0.025
Si: ≥0.10
Ni: ≤0.40
Cr: ≤0.30
Cu: ≤0.40
V: ≤0.08
Icyitonderwa: ≤0.02
ukwezi: ≤0.12
*Umubare wa Manganese ushobora kwiyongeraho 0.05% kuri buri gabanuka rya 0.01% ry'umubare wa karuboni kugeza kuri 1.35%.
**Ibipimo bya Niobium, hashingiwe ku byumvikane, bishobora kwiyongera kugeza kuri 0.05% mu isesengura ry’ibicuruzwa bishongeshejwe na 0.06% mu isesengura ry’ibicuruzwa byarangiye.
Ibisabwa mu kuvura ubushyuhe:
1. Guhindura ubushyuhe buri hejuru ya 815°C.
2. Shyira ubushyuhe buri hejuru ya 815°C, hanyuma ubushyuhe bube buri hejuru.
3. Ishyushye ikozwe hagati ya 845 na 945°C, hanyuma ikonjeshwa mu itanura riri hejuru ya 845°C (ku miyoboro idafunze gusa).
4. Yakozwe mu mashini hanyuma agashya nk'uko bivugwa haruguru ku ngingo ya 3.
5. Yakomeretse hanyuma ikaranze hejuru ya 815°C.
Ibisabwa mu mikorere ya mekanike:
Ingufu z'umusaruro: ≥240Mpa
Ingufu zo gukurura: ≥415Mpa
Uburebure:
| Urugero | A333 GR.6 | |
| Ihagaze | Impinduka | |
| Agaciro ntarengwa k'uruziga rusanzweicyitegererezo cyangwa icyitegererezo gito gifite intera ya 4D | 22 | 12 |
| Ingero z'urukiramende zifite ubugari bw'inkuta bwa santimetero 7.94 no hejuru, hamwe n'ingero zose nto zageragerejwe muriigice cyose cyambukiranya igice kuri santimetero 50 (50 mm)ibimenyetso | 30 | 16.5 |
| Ingero z'urukuta zifite uburebure bwa santimetero 7.94 (7.94 mm) ku ntera ya santimetero 50 (ubugari bwa santimetero 1.5, mm 12.7) | A | A |
A Emera kugabanuka kwa 1.5% mu burebure bw'inkuta n'igabanuka rya 1.0% mu burebure bw'inkuta kuri buri santimetero 1/32 (0.79 mm) y'ubugari bw'urukuta kugeza kuri santimetero 7.94 ukurikije agaciro k'uburebure kavuzwe haruguru.
Ikizamini cy'Ingaruka
Ubushyuhe bw'ikizamini: -45°C
Iyo hakoreshejwe ingero nto za Charpy kandi ubugari bw'ingero bukaba buri munsi ya 80% by'ubunini nyakuri bw'ibikoresho, ubushyuhe bwo gupima ingaruka bugomba gukoreshwa nk'uko byabazwe mu mbonerahamwe ya 6 y'ibisobanuro bya ASTM A333.
| Urugero, mm | Impuzandengo y'ingero eshatu nibura | Agaciro ntarengwa ka kurie of ingero eshatu |
| 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 |
Imiyoboro y'icyuma igomba gupimwa hifashishijwe amashanyarazi cyangwa idasenya (amashanyarazi ya eddy cyangwa ultrasonic) ku ishami ku rindi.
Ubushobozi bwo kwihanganira umurambararo w'inyuma w'umuyoboro w'icyuma:
| Ingano yo hanze, mm | kwihanganirana neza, mm | kwihanganira nabi, 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 |
Ubunini bw'urukuta bw'umuyoboro w'icyuma:
Ingingo iyo ari yo yose ntigomba kuba munsi ya 12.5% by'ubugari bw'urukuta. Iyo ubugari bw'urukuta buke butegetswe, nta ngingo igomba kuba munsi y'ubugari bw'urukuta busabwa.
Igihe cyo kohereza: 22 Gashyantare 2024