ASTM A335 (tseem hu ua ASME SA335) yog tus qauv qhia rauseamless ferritic alloy-steel yeeb nkab npaj rau siab -kev pabcuam kub.dav siv nyob rau hauvfais fab nroj tsuag, refineries, boilers, pipelines, thiab tshav kub exchangers.
Peb feem ntau siv qib raws li ASTM A335 rau kev tsim hluav taws xob, roj & roj, thiab kev siv petrochemical yogP11, P22, thiab P91.
Qhov Loj
Sab nraud txoj kab uas hla (OD):21.3 hli - 610 hli
Phab ntsa Thickness (WT):2.0mm-50mm
Ntev:6m, 12m, lossis customized
Teem caij: SCH40, SCH80, SCH160, XXS
Export Ntim
Beveled xaus
Cov kaus mom yas ntawm ob qhov kawg
Bundles nrog steel strips
Ntoo thawv / crates rau siab - tus nqi kav
Cov cim: qib, kub tooj, loj, qauv, logo
| Parameter | P11 (1.25Cr-0.5Mo) | P22 (2.25Cr-1Mo) | P91 (9Cr-1Mo-VNb) |
| UNS Number | K11597 | K21590 | K90901 |
| Chromium (Cr) | 1.00–1.50% | 1.90–2.60% | 8.0–9.5% |
| Molybdenum (hli) | 0.44–0.65% | 0.87–1.13% | 0.85–1.05% |
| Tensile zog (min) | 415 MPa rau | 415 MPa rau | 585 MPa ua |
| Yield zog (min) | 205 MPa | 205 MPa | 415 MPa rau |
| Hardness (max) | 163 HWB | 163 HWB | 250 HWB |
| Max Service Temp | ~ 510℃(950℃F) | ~ 565℃(1050℃F) | ~ 593℃(1100℃F) |
| Matching Forging | A182 F11 | A182 F22 | A182 F91 |
| Kev sib phim | A234 WP11 | A234 WP22 | A234 WP91 |
| Preheat rau Vuam | 150-200 degree | 200-250 degree | 200-300 degree |
| PWHT Temp | 675-730 degree | 675-730 degree | 730-770 degree |
Daim ntawv thov (Qhov tseem ceeb tshaj plaws rau Export)
P11:
Qhia nruab nrab-kub boiler raj
nthuav qhia Reheater raj
nthuav qhia Steam headers
nthuav dav dav dav -tej dej kub hauv cov chaw ua dej
nthuav qhia Thaum tshav kub kub exchanger plhaub
P22:
nthuav qhia High-kub boiler raj
nthuav qhia Superheater raj
nthuav qhia Steam pipelines
nthuav qhia Petrochemical cracking units
nthuav qhia Fais fab nroj tsuag lub ntsiab chav kab
P91:
qhia Ultra-supercritical (USC) / supercritical fais fab nroj tsuag
nthuav qhia High-kub siab -siab (HTHP) chav kav
nthuav qhia Headers thiab cov kab tseem ceeb
nthuav qhia Heavy phab ntsa tuab yeeb nkab rau kev tsim hluav taws xob
nthuav qhia High-kub creep- kev pabcuam tseem ceeb
Qib sib npaug (Rau cov neeg siv khoom thoob ntiaj teb)
P11
EN:13CrMo4-5
JIS:SIB 22
GB:15 CrMo
P22
EN:10CrMo9-10
JIS:SIB 24
GB:12Cr2Mo1
P91
EN:X10CrMoVNb9-1
JIS:SIB 28
GB:10Cr9Mo1VNb
Cov ntsiab lus lag luam tseem ceeb rau cov neeg siv khoom
| Qib | Ntsiab Muag Point rau Cov Neeg Siv Khoom |
| P11 | Tus nqi zoo tshaj rau nruab nrab siab -kub siv. Weldability zoo, dav dav, tus nqi feem ntau -kev nkag tau zoo-theem chrome-moly qib. |
| P22 | Kev lag luam ua haujlwm. Muaj peev xwm kub siab dua P11 nrog tus nqi nruab nrab nce. Zoo heev rau kev siv superheater thiab reheater. |
| P91 | Premium siab - qib kev ua tau zoo. Cov phab ntsa thinner txo qhov hnyav tag nrho (30-50% txo), txo qis thermal qaug zog, thiab lub neej ua haujlwm ntev dua nyob rau hauv ultra-cov xwm txheej supercritical. Justifies ntau dua cov ntaub ntawv tus nqi los ntawm tag nrho cov ntsia nqi txuag. |
Peb qhov chaw nyob
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Xov tooj (WhatsApp/Wechat)
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