Dimensional Specifications

Parameter	Paub meej
Qhov Loj	1/2 "NB rau 24" NB (DN15 txog DN600)
Phab ntsa Thickness	SCH 40 rau SCH 160 / XXS
Sab nraud txoj kab uas hla	Mus txog 509 mm
Phab ntsa Thickness	2.1mm-20mm (customizable)
Ntev	Ib qho Random, Ob Chav Random, lossis Custom Cut
Xaus	Plain End (PE), Beveled End (BE), Threaded
Kev kho saum npoo	Polished, Varnished, 3LPE, FBE

Txheem:ASTM A335 / ASME SA335 / ASTM A335 / ASTM A335 / ASTM A335 / ASTM A335 / ASME SA335 / ASTM A335 / ASTM A335 / ASME SA335 / ASTM A335 / ASTM A335 / ASTM A335 / ASTM A335 / ASTM A335 / ASTM A335 / ASTM A335 / ASTM A335 / ASTM A335 / ASME SA335 / ASTM A335 / ASTM A335 / ASME SA335 / ASME SA335 / ASTM A335 / ASME SA335 / ASTM A335 / ASME SA335 / ASTM A335 / ASME SA335 / ASTM A335 / ASME SA335 / ASTM A335 / ASME SA335) Cov ntawv pov thawj

Qib:P91 (UNS K91560)

Hom:Seamless - Kub tiav lossis txias kos

Standards sib npaug:EN 10216-2, ASTM A213, ASME SA213, GOST 550-75

Khoom siv sib npaug:T91, X10CrMoVNb9-1, 1.4903

Haum rau:Bending, flanging, thiab fusion vuam

Kev kho cua sov:Muab nyob rau hauv normalized + tempered mob

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Technical Parameters

ASTM A335 P91 (tseem hu ua ASME SA335 P91, UNS K91560) yog seamless ferritic alloy steel yeeb nkab tshwj xeeb tsim los rau siab - kub thiab siab - kev pabcuam siab.

P91 qib yog 9% chromium - 1% molybdenum alloy nrog vanadium thiab niobium micro- ntxiv, muab cov khoom siv kho tshuab zoo heev ntawm qhov kub siab txog 650℃rau kev pabcuam ntev -. Nws yog cov khoom ntawm kev xaiv rau ultra-supercritical boilers, siab -kub chav kab, thiab lwm yam tseem ceeb heev -siab tshuab qhov ntev - lub sij hawm kev cia siab yog qhov tseem ceeb .

Lub ntsiab	Cov ntsiab lus ntau	Lub ntsiab	Cov ntsiab lus ntau
C	0.08 – 0.12	Cr	8.00 – 9.50
Mo	0.85 – 1.05	V	0.18 – 0.25
Nb	0.06 – 0.10	N	0.03 – 0.07
Si	0.20 – 0.50	Mn	0.30 – 0.60
P	Tsawg dua los yog sib npaug rau 0.020	S	Tsawg dua lossis sib npaug li 0.010

Performance Index	Txheem tus nqi
Tensile zog	Ntau dua lossis sib npaug li 585 MPa
Yield zog	Ntau dua lossis sib npaug li 415 MPa
Elongation tom qab Fracture	Ntau dua lossis sib npaug li 20%
Charpy V-notch Impact Energy (-29 degree)	Ntau dua lossis sib npaug rau 18 J (tus nqi nruab nrab)

Cov txheej txheem tseem ceeb rau smelting thiab sib sau:

Hluav taws xob arc rauv / converter smelting yog siv, ua raws li LF refining, VD nqus degassing, thiab casting ntawm round billets. Nyob rau hauv cov txheej txheem kub dov, lub 1200℃steel billet yog perforated rau hauv cov hlab ntsha capillary, thiab ces tsim los ntawm nruam dov. Lub dov compression piv yuav tsum tau tswj ntawm 3.5-5.0 kom ntseeg tau tias lub compactness ntawm cov qauv.

Kev kho cua sov txheej txheem:Cov txheej txheem tseem ceeb yog normalizing + tempering, nrog rau qhov normalizing kub ntawm 1040 ± 15℃( rwb thaiv tsev rau 30 feeb / 25mm thickness) thiab tempering kub ntawm 770 ± 15 degree. Tus nqi cua txias yuav tsum tau tswj xyuas kom meej kom tsis txhob muaj nag lossis daus ntawm δ ferrite thiab xyuas kom meej tias cov microstructure yog tempered martensite nrog cov qoob loo loj dua lossis sib npaug li 5.

Vuam technical specifications: Preheat rau 200-250℃ua ntej welding, interlayer kub tsawg dua los yog sib npaug rau 300 degree, thiab kev kho cua sov hauv zos ntawm 760 ± 15℃yuav tsum tau ua tom qab vuam. Thaum siv ER90S-B9 vuam hlau, lub zog sib koom ua ke tuaj yeem ncav cuag 0.9 lossis siab dua.

FAQ

Q1: Dab tsi yog qhov txawv ntawm P91 thiab cov pa roj carbon zoo tib yam kav?

A1: P91 yog siab -kawg tshav kub-resistant alloy steel yeeb nkab nrog tshwj xeeb micro- alloying Cheebtsam. Nws tuaj yeem tiv taus ntev - lub sijhawm kev pabcuam ntawm 650℃qhov kub thiab txias, nrog kev nkag siab zoo dua, oxidation tsis kam thiab kev ruaj khov dua li cov kav dej carbon steel. Cov yeeb nkab carbon steel tsuas yog tsim rau qis - qhov kub thiab qis - cov pa xa hluav taws xob sib kis, thiab tsis tuaj yeem hloov mus rau qhov chaw muaj cua sov heev.

Q2: Dab tsi yog qhov txawv ntawm P91 thiab P22 alloy kav?

A2: P91 muaj ntau dua chromium thiab molybdenum cov ntsiab lus thiab ntxiv vanadium, niobium thiab nitrogen cov ntsiab lus. Nws tso cai rau kev ntxhov siab ntawm 550℃-600℃yog ntau dua 3 npaug ntawm P22. P91 yog haum rau ultra-supercritical siab parameter ua hauj lwm tej yam kev mob, thaum P22 tsuas yog muaj feem xyuam rau nruab nrab thiab siab kub pa thermal systems.

Q3: Koj puas tuaj yeem muab kev pabcuam loj thiab kev pabcuam?

A3: Yog. Peb txhawb customized txheej kab, phab ntsa thickness, ruaj -ntev txiav, nto polishing, anti- xeb kev kho mob thiab yeeb nkab kawg grooving. Tag nrho cov khoom customized nruj me ntsis raws li ASTM tus qauv kam rau ua thiab muab cov ntaub ntawv soj ntsuam tiav.

Q4: Cov ntawv pov thawj zoo dab tsi koj tuaj yeem muab tau?

A4: Peb tuaj yeem muab daim ntawv pov thawj Hoobkas kuaj (MTC), tshuaj lom neeg & khoom vaj khoom tsev kuaj daim ntawv tshaj tawm, daim ntawv tshaj tawm kuaj ultrasonic, daim ntawv tshaj tawm kev xeem hydraulic, ASTM / ASME tus qauv ntawv pov thawj, thiab thib peb- daim ntawv pov thawj kev soj ntsuam (SGS, BV, TUV) raws li cov neeg siv khoom xav tau.

Q5: Koj lub sijhawm ntau lawm thiab xa khoom yog dab tsi?

A5: Cov khoom me me yog nyob rau hauv Tshuag nrog 3-7 hnub xa khoom sai. Kev cai tsis yog- qhov loj me yuav siv 15-25 hnub ua haujlwm. Peb txhawb nqa kev txiav txim ntau lawm thiab muab cov kev daws teeb meem hloov pauv rau cov neeg siv khoom thoob ntiaj teb.

Q6: Lub neej kev pab cuam ntawm P91 seamless yeeb nkab yog dab tsi?

A6: Raws li tus qauv kev teeb tsa thiab kev ua haujlwm ib txwm muaj (kub tsawg dua lossis sib npaug li 600 degree, ntsuas siab), lub neej kev pabcuam tuaj yeem ncav cuag ntau dua 15-20 xyoo, ntev dua li cov kav hlau alloy zoo tib yam, txo cov haujlwm ua haujlwm thiab cov nqi tu.

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