Heerka A335ASTM A335/ASME S-A335) waa qeexid caalami ah oo loogu talagalay tuubooyinka birta birta ah ee birta ah ee aan sinnayn ee loo isticmaalo heerkulka sare iyo jawiga cadaadiska sarreeya. Waxaa si weyn loogu isticmaalaa batroolka, tamarta (kuleylka / tamarta nukliyeerka), kuleyliyaha iyo warshadaha sifeynta. Tuubooyinka birta ee heerkan hoos yimaada waxay leeyihiin awood heerkul sare oo heer sare ah, caabbinta gurguurta iyo iska caabinta daxalka, waxayna ku habboon yihiin xaalado shaqo oo aad u daran.
Qalabka caadiga ah iyo ka kooban kiimiko ee heerka A335
Qalabka A335 waxaa lagu kala saaraa nambarada "P", iyo darajooyin kala duwan waxay ku habboon yihiin heerkul kala duwan iyo bay'ad daxalaysa:
| Darajo | Qaybaha kiimikada ugu muhiimsan | Astaamaha | Heerkulka lagu dabaqi karo |
| A335 P5 | Cr 4-6%, Mo 0.45-0.65% | U adkaysta daxalka sulfur oo gurguurta heerkul dhexdhexaad ah | ≤650°C |
| A335 P9 | Cr 8-10%, Mo 0.9-1.1% | Waxay leedahay iska caabin oksaydh heerkul sare ah iyo xoog aad u sarreeya | ≤650°C |
| A335 P11 | Cr 1.0-1.5%, Mo 0.44-0.65% | Weldability wanaagsan iyo xoogga heerkulka dhexdhexaadka ah | ≤550°C |
| A335 P12 | Cr 0.8-1.25%, Mo 0.44-0.65% | Si la mid ah P11, doorasho dhaqaale | ≤550°C |
| A335 P22 | Cr 2.0-2.5%, Mo 0.9-1.1% | Daxalka ka-hortagga hydrogen, oo inta badan loo isticmaalo kuleyliyaha xarunta korontada | ≤600°C |
| A335 P91 | Cr 8-9.5%, Mo 0.85-1.05% | Xoog aadka u sarreeya, oo loo doorbido cutubyada sare | ≤650°C |
| A335 P92 | P91 + W | Iska caabin heerkul sare ah, oo ku habboon cutubyada aadka u sarreeya | ≤700°C |
Xaaladaha codsiga ee tuubooyinka birta ee A335
1. Warshadaha kiimikada
A335 P5/P9: Qaybaha dildilaaca ee wershadaha, tuubooyinka baaruudda kuleylkoodu sarreeyo.
A335 P11/P12: Heerarka kulaylka, dhuumaha gudbinta uumiga heerkulka dhexdhexaadka ah.
2. Warshadaha tamarta (awoodda kulaylka / tamarta nukliyeerka)
A335 P22: Dhuumaha uumiga ugu weyn iyo madaxyada dhirta kulaylka caadiga ah.
A335 P91/P92: Cutubyo heer sare ah/sare-sare ah, tuubooyin cadaadis sare leh oo tamarta nukliyeerka ah.
3. Kuleyliyaha iyo weelasha cadaadiska
A335 P91: Qaybaha heerkulka sare ee kuleyliyeyaasha waxtarka sare leh ee casriga ah.
A335 P92: Dhuumaha heerkulka sare u adkaysta ee kuleyliyeyaasha cabbirka sare.
Sidee loo doortaa qalabka saxda ah ee A335? Shuruudaha heerkulka:
Shuruudaha heerkulka:
≤550°C: P11/P12
≤650°C: P5/P9/P22/P91
≤700°C: P92
Bey'adda qudhuntay:
Dhexdhexaad ka kooban baaruud → P5/P9
Deegaanka daxalka leh ee hydrogen → P22/P91
Qiimaha iyo xoogga:
Doorashada dhaqaalaha → P11/P12
Shuruudaha xoogga sare → P91/P92
Heerarka caalamiga ah ee u dhigma ee tuubooyinka birta ee A335
| A335 | (HA) | (JIS) |
| P11 | 13CrMo4-5 | STPA23 |
| P22 | 10CrMo9-10 | STPA24 |
| P91 | X10CrMoVNb9-1 | STPA26 |
FAQ
Q1: Waa maxay faraqa u dhexeeya A335 P91 iyo P22?
P91: Maadada chromium iyo molybdenum sare, caabbinta gurguurta oo xoog badan, oo ku habboon cutubyo heer sare ah.
P22: Qiimaha hoose, oo ku habboon kuleyliyeyaasha warshad dhaqameed ee tamarta.
Q2: Dhuumaha birta A335 ma u baahan tahay daaweyn kulayl?
Caadiyan + daawaynta heerkulka ayaa loo baahan yahay, P91/P92 sidoo kale waxay u baahan tahay xakamayn adag oo heerka qaboojinta.
Q3: A335 P92 ma ka fiican yahay P91?
P92 waxay leedahay iska caabin heerkul sare ah (≤700 ° C) sababtoo ah joogitaanka tungsten (W), laakiin qiimaha ayaa sidoo kale ka sarreeya.
A335 birta birta ah ee caadiga ah waa walxo muhiim ah oo hoos yimaada heerkulka sare iyo xaaladaha cadaadiska sare. Qalab kala duwan (sida P5, P9, P11, P22, P91, P92) waxay ku habboon yihiin xaalado kala duwan. Marka la dooranayo, waxaa lagama maarmaan ah in si buuxda loo tixgeliyo heerkulka, daxalka, xoogga iyo arrimaha qiimaha, iyo tixraac heerarka caalamiga ah ee u dhigma (sida EN, JIS).
Waqtiga boostada: Jun-06-2025
