Bayani na A335ASTM A335/ASME S-A335) ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙasashen duniya ne don bututun ƙarfe na ƙarfe mara nauyi da aka yi amfani da shi a cikin matsanancin zafin jiki da yanayin matsa lamba. Ana amfani dashi ko'ina a cikin petrochemical, wuta (masu zafi / makamashin nukiliya), tukunyar jirgi da masana'antu masu tacewa. Bututun ƙarfe a ƙarƙashin wannan ma'auni suna da kyakkyawan ƙarfin zafin jiki, juriya mai raɗaɗi da juriya na lalata, kuma sun dace da matsanancin yanayin aiki.
Abubuwan gama gari da abubuwan sinadaran A335
Ana bambanta kayan A335 ta lambobi "P", kuma maki daban-daban sun dace da yanayin zafi daban-daban da yanayin lalata:
| Daraja | Babban abubuwan sinadaran | Halaye | Zazzabi mai dacewa |
| Saukewa: A335P5 | Cr 4-6%, Mo 0.45-0.65% | Mai jurewa lalata sulfur da rarrafe a matsakaicin yanayin zafi | ≤650°C |
| Saukewa: A335P9 | Cr 8-10%, Mo 0.9-1.1% | Yana da tsayayyar iskar shaka mai zafi mai zafi kuma yana da ƙarfi mai ƙarfi | ≤650°C |
| Saukewa: A335P11 | Cr 1.0-1.5%, Mo 0.44-0.65% | Kyakkyawan weldability da ƙarfin matsakaici-zazzabi | ≤550°C |
| Saukewa: A335P12 | Cr 0.8-1.25%, Mo 0.44-0.65% | Kama da P11, zaɓi na tattalin arziki | ≤550°C |
| Saukewa: A335P22 | Cr 2.0-2.5%, Mo 0.9-1.1% | Anti-hydrogen lalata, wanda akafi amfani dashi a cikin tukunyar jirgi na tashar wuta | ≤600°C |
| Saukewa: A335P91 | Cr 8-9.5%, Mo 0.85-1.05% | Ƙarfi mai ƙarfi, wanda aka fi so don raka'a masu mahimmanci | ≤650°C |
| Saukewa: A335P92 | P91+W | Mafi girman juriya na zafin jiki, dace da raka'o'in ultra-supercritical | ≤700°C |
Yanayin aikace-aikace na A335 karfe bututu
1. Petrochemical masana'antu
A335 P5/P9: Raka'a masu fashewa a cikin matatun mai, bututun sulfur mai zafi mai zafi.
A335 P11/P12: Masu musayar zafi, bututun watsa tururi mai matsakaicin zafi.
2. Masana'antar wutar lantarki (masu wutar lantarki / wutar lantarki)
A335 P22: Babban bututun tururi da shugabannin masana'antar wutar lantarki ta gargajiya.
A335 P91/P92: Supercritical / matsananci-mafi girman raka'a, bututun mai karfin nukiliya.
3. Boilers da matsa lamba
A335 P91: Abubuwan zafi masu zafi na zamani masu inganci mai ƙarfi.
A335 P92: Bututun da ke jure zafin zafin jiki don manyan tukunyar jirgi.
Yadda za a zabi kayan A335 daidai? Bukatun zafin jiki:
Bukatun zafin jiki:
≤550°C: P11/P12
≤650°C: P5/P9/P22/P91
≤700°C: P92
Muhalli mai lalacewa:
Sulfur mai matsakaici → P5/P9
Yanayi mai lalata hydrogen → P22/P91
Farashin da ƙarfi:
Zaɓin tattalin arziki → P11/P12
Babban buƙatun ƙarfi → P91/P92
International daidai matsayin ga A335 karfe bututu
| A335 | (EN) | (JIS) |
| P11 | 13CrMo4-5 | Saukewa: STPA23 |
| P22 | 10CrMo9-10 | Saukewa: STPA24 |
| P91 | Saukewa: X10CrMoVNb9-1 | Saukewa: STPA26 |
FAQ
Q1: Menene bambanci tsakanin A335 P91 da P22?
P91: Mafi girman chromium da abun ciki na molybdenum, juriya mai ƙarfi mai ƙarfi, dacewa da raka'a masu mahimmanci.
P22: Ƙananan farashi, dacewa da tukunyar wutar lantarki na gargajiya.
Q2: Shin A335 karfe bututu bukatar zafi magani?
Ana buƙatar Normalizing + tempering magani, kuma P91/P92 kuma yana buƙatar kulawa mai tsauri na ƙimar sanyaya.
Q3: Shin A335 P92 ya fi P91?
P92 yana da mafi girman juriya na zafin jiki (≤700 ° C) saboda kasancewar tungsten (W), amma farashin kuma ya fi girma.
A335 daidaitaccen gami da bututun ƙarfe mara nauyi shine babban abu a ƙarƙashin babban zafin jiki da yanayin matsa lamba. Daban-daban kayan (kamar P5, P9, P11, P22, P91, P92) sun dace da yanayi daban-daban. Lokacin zabar, yana da mahimmanci a yi la'akari da yanayin zafin jiki, lalata, ƙarfi da abubuwan farashi, kuma koma zuwa daidaitattun daidaitattun ƙasashen duniya (kamar EN, JIS).
Lokacin aikawa: Juni-06-2025
