Shuruudaha Halabuurka Kiimikada ，%
C: ≤0.30
Mn: 0.29-1.06
P: ≤0.025
S: ≤0.025
Si: ≥0.10
Ni: ≤0.40
C: ≤0.30
Cu: ≤0.40
V: ≤0.08
Nb: ≤0.02
Mo: ≤0.12
* Waxa ku jira manganese waxa lagu kordhin karaa 0.05% 0.01% kasta oo hoos u dhaca kaarboonka ilaa 1.35%.
**Nuxurka Niobium, ee ku salaysan heshiis, waxa la kordhin karaa ilaa 0.05% falanqaynta dhalaalka iyo 0.06% falanqaynta alaabta dhammaatay.
Shuruudaha daaweynta kulaylka:
1. Caadi ka sarreeya 815°C.
2. Caadi ka dhig 815°C,kadibna xanaaq.
3. Kulayl ayaa samaysmay inta u dhaxaysa 845 iyo 945°C, ka dibna lagu qaboojiyey foornada ka sarraysa 845°C (tuubooyinka aan xidhnayn oo keliya).
4. Mashiino ka dibna la xanaaqi sida ku xusan Qodobka 3aad.
5. Wuu qallafsan yahay ka dibna wuxuu ka sarreeyaa 815°C.
Shuruudaha waxqabadka makaanikada:
Awoodda wax-soosaarka: ≥240Mpa
Xoogga xajinta: ≥415Mpa
Dheeraynta:
| Tusaale | A333 GR.6 | |
| Toosan | Guddoon | |
| Qiimaha ugu yar ee wareegtada caadiga ahmuunado ama miisaan yar oo leh masaafo calaamadeed oo ah 4D | 22 | 12 |
| Muunado leydi ah oo dhumucdiisu tahay 5/16 in.isgoys buuxa oo ah 2 in. (50 mm)calaamadayn | 30 | 16.5 |
| Tijaabooyin leydi ah oo ilaa 5/16 inji ah | A | A |
Oggolow 1.5% hoos u dhigida dhererka dhererka iyo 1.0% dhimista dhererka transverse 1/32 in. (0.79 mm) dhumucda darbiga ilaa 5/16 in.
Tijaabada Saamaynta
Heerkulka Tijaabada: -45°C
Marka shaybaarada saamaynta Charpy yar la isticmaalo oo balaca cirifka muunadu uu ka yaraado 80% dhumucda dhabta ah ee walaxda, heerkulka tijaabada saamaynta hoose waa in loo isticmaalaa sida lagu xisaabiyay shaxda 6 ee qeexida ASTM A333.
| Tusaale, mm | Celceliska ugu yar ee saddex muunado | Qiimaha ugu yar eee of saddexda shaybaar |
| 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 |
Tuubooyinka birtu waa inay ahaadaan kuwo la tijaabiyey ama aan burbursanayn (eddy current ama ultrasonic) oo ku salaysan laan-laan.
Dulqaadka dhexroorka dibadda ee tuubada birta:
| Dhexroorka ka baxsan, mm | dulqaad togan,mm | dulqaad xun,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 |
U adkeysiga dhumucda gidaarka ee tuubada birta:
Dhibic kasta waa inuusan ka yarayn 12.5% dhumucda derbiga magacaaban.Haddii dhumucda derbiga ugu yar la dalbado, dhibicna waa inay ka yaraataa dhumucda gidaarka ee loo baahan yahay.
Waqtiga boostada: Febraayo-22-2024