Birta yar-yar 309 tuubbooyin aan kala go 'lahayn
Sharraxaadda Gaaban:
Birta dhagan 309 waa bir kuleylka kuleylka leh ee loo yaqaan 'kululetic'
Imtixaan bir ah oo birta ah
Birta saliida leh 309 waxaa lagu yaqaanaa iska caabin ku kululeeyaan meel gaar ah, taasoo ku habboon codsiyada heerkulka sare, gaar ahaan jawiga saboolka ah ee saliida leh. iyo heerkulka sare-heer sare ah. The't "oo aan la tolo" ayaa muujinaya in tuubada la soo saaro iyada oo aan wax gogosha loo yeelo. Tuunyo aan kala go 'lahayn ayaa inta badan laga door bidaa codsi sare iyo heerkul heer sare ah oo ay ugu wacan yihiin qaab dhismeedkooda. la kulmay.
Faahfaahinta 309 tuubbooyin:
| Heer u qaybin | 309,309s |
| Faahfaahinta | ASTM A / Asme Sa213 / A249 / A269 |
| Dherer | Hal si kedis ah, laba jibbaar oo madax ah. |
| Weynaan | 10.29 od (mm) - 762 od (mm) |
| Dhumuc weyni | 0.35 od (mm) ilaa 6.35 od (mm) dhumucdiisu waa 0.1mm illaa 1.2mm. |
| Jadwal | Sch3, Sch30, SCD40, STD, Sch80, XS, S Sch60, Sch10, Sch120, Sch120, Sch160, Xxs |
| Teeb ku qorid | Jahwareer / Erw / Webed / been abuur |
| Qaab | Tuubbooyinka wareega, tuubooyinka caadiga ah, tuubooyinka labajibbaaraneyaasha, tuubooyinka alwaaxa ah |
| Xiidh ceyriin ah | Posco, baistal, Tisco, saky bir, barokokumpu |
Birta birta ah 309 tuubooyin kale:
309 Tuubooyinka Tuun ee Birta Labaad:
| Heer u qaybin | C | Si | Mn | S | P | Cr | Ni |
| 309 | 0.20 | 1.0 | 2.0 | 0.030 | 0.045 | 18 ~ 23 | 8-14 |
Sifooyinka farsamada ee birta birta ee birta ah 309 tuubooyinka:
| Heer u qaybin | Xoog TSenlisle (MPA) Min | Codadka (% 50mm) min | Dhali xoog 0.2% caddeyn (MPA) min | Rockwell b (hr b) max | Brinell (HB) ugu bad |
| 309 | 620 | 45 | 310 | 85 | 169 |
Baakadaha saky bir ah:
1. Xirmooyinku aad ayey muhiim utahay gaar ahaan kiis ka mid ah maraakiibta caalamiga ah ee ku wareejiya khadadka kala duwan si ay u gaaraan halka ugu dambeysa, sidaa darteed waxaan walaac gaar ah ku galnay baakadaha.
2. Saky bir ah oo alaabteena badan ku xirnaado siyaabo badan oo ku saleysan badeecadaha. Waxaan alaabooyinkayaga u soo saarnaa siyaabo badan, sida,
