IiMfuno zoBume beMichiza,%,
C: ≤0.30
Mnu: 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
Nb: ≤0.02
Mo: ≤0.12
*Umxholo weManganese unokunyuswa nge-0.05% kwi-0.01% nganye yehla kwisiqulatho sekhabhoni ukuya kutsho kwi-1.35%.
** Umxholo we-Niobium, ngokusekelwe kwisivumelwano, unokunyuswa ukuya kwi-0.05% yohlalutyo lwe-melted kunye ne-0.06% yohlalutyo lwemveliso egqityiweyo.
Iimfuno zonyango lobushushu:
1. Iqheleke ngaphezu kwe815°C.
2. Yenza ngokuqhelekileyo ngaphezu kwe-815 ° C, emva koko ucaphuke.
3. Ukutshisa okwenziwe phakathi kwe-845 kunye ne-945 ° C, emva koko kupholile kwisithando somlilo ngaphezu kwe-845 ° C (kwiityhubhu ezingenamthungo kuphela).
4. Yenziwe yaze yathanjiswa ngokweNqaku 3 engentla.
5. Iqiniswe yaze yafudumala ngaphezulu kwama-815°C.
Iimfuno zokusebenza koomatshini:
Amandla esivuno: ≥240Mpa
Amandla okuqina: ≥415Mpa
Ubude:
| Isampulu | A333 GR.6 | |
| Ngokuthe nkqo | Ukunqamleza | |
| Ubuncinane bexabiso lesetyhula eqhelekileyoumboniso okanye umlinganiselo omncinci womgama wokumakisha we-4D | 22 | 12 |
| Iisampulu ezixande ezinobunzima bodonga obuyi-5/16 ngaphakathi. (7.94 mm) nangaphezulu, kunye nayo yonke imilinganiselo emincinci ivavanywaicandelo elinqamlezileyo elipheleleyo kwi-2 in. (50 mm)amanqaku | 30 | 16.5 |
| Imizekelo yoxande ukuya kuthi ga kwi-5/16 in. (7.94 mm) ubukhulu bodonga kwi-2 in. (50 mm) umgama wokumakisha (ububanzi bomfanekiso 1/2 ngaphakathi., 12.7 mm) | A | A |
A Vumela ukucutha kwe-1.5% ekunciphiseni ubude be-longitudinal kunye ne-1.0% yokunciphisa ubude obunqamlekileyo kwi-1/32 nganye kwi-.
Uvavanyo lweMpembelelo
Uvavanyo lobushushu: -45°C
Xa kusetyenziswa imizekelo yempembelelo encinci yeCharpy kwaye ububanzi benotshi yomzekelo bungaphantsi kwama-80% obuninzi bezinto eziphathekayo, iqondo lobushushu eliphantsi lempembelelo kufuneka lisetyenziswe njengoko kubalwe kwiTheyibhile 6 yenkcazo ye-ASTM A333.
| Umzekelo, mm | Ubuncinci bomyinge weesampulu ezintathu | Ubuncinci bexabiso lokuvulae of iisampuli ezintathu |
| 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 |
Imibhobho yensimbi kufuneka ihlolwe nge-hydrostatically okanye ingonakalisi (i-eddy current okanye i-ultrasonic) kwisiseko sesebe-ngesebe.
Ukunyamezela kobubanzi obungaphandle bombhobho wentsimbi:
| Ububanzi bangaphandle, mm | ukunyamezela okulungileyo, mm | ukunyamezela okubi, 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 |
Ukunyamezela ubungakanani bodonga lombhobho wentsimbi:
Naliphi na inqaku aliyi kuba ngaphantsi kwe-12.5% yobukhulu bodonga.Ukuba ubuncinci bodonga buyalelwe, akukho nqaku liya kuba ngaphantsi kodonga olufunekayo.
Ixesha lokuposa: Feb-22-2024