Yam khoom	Paub meej
Executive Standard	DIN 17175 Seamless steel raj rau kev pabcuam kub siab)
Khoom Qib	ST35.8, Khoom No. 1.0305
Txheej txheem ntau lawm	Kub Rolled Seamless / Cold Drawn Seamless
Kev Xa Khoom	Normalized (NBK + N), puv - ntev kev kho cua sov
Hla ntu	Round seamless raj
Ua haujlwm Temp. Ntau yam	-20℃~ 450℃(max luv luv ncov 600 degree)
Max Ua Haujlwm Siab	Tsawg dua los yog sib npaug rau 5.88 MPa nruab nrab siab system
Qib sib npaug	EN: P235GH; ASTM: A179 Gr.A; JIS: STB340; BS: CFS320Made-in-Ch...

914da4dbc0cd90f54b25a852594327a9tplv-be4g95zd3a-448x448

DIN 17175 ST35.8 yog tus qauv German uas tsis yog - alloy carbon seamless steel raj tshwj xeeb tsim raunruab nrab & siab kub, nruab nrab - kev pabcuam siabmus txog 450 degree. Nws nta ruaj khov siab -kub txhua yam kev ua tau zoo, weldability zoo heev, niaj hnub phab ntsa tuab thiab nruj qhov ntev kam rau ua, dav siv hauv European boiler, fais fab nroj tsuag, petrochemical thiab tshav kub hloov tshuab.

Tsim los ntawm kub dov / txias kos duab seamless txheej txheem, tag nrho normalized cua sov-kho kom tau raws li DIN 17175 elevated kub specification. Haum rau cov kav dej ncu, boiler cua sov qhov chaw, tshav kub exchangers thiab siab piping nyob rau hauv ntev - lub sij hawm thermal load.

Technical Data

Chemical Composition (Qhov hnyav, Max txwv)

Lub ntsiab	C	Si	Mn	P	S	Cr / Mo
TSI 35.8	Tsawg dua lossis sib npaug li 0.17	0.10–0.35	0.40–0.80	Tsawg dua lossis sib npaug li 0.030	Tsawg dua lossis sib npaug li 0.030	Tsis muaj ntxiv

Chav Kub Mechanical Properties

Khoom	Tus nqi
Tensile zog Rm	360-480 MPa
Yield Strength Re (WT Tsawg dua lossis sib npaug rau 16mm)	Ntau dua lossis sib npaug li 235 MPa
Yield zog Re (WT 16-40mm)	Ntau dua lossis sib npaug li 225 MPa
Elongation A (L=5.65√S)	Ntau dua lossis sib npaug li 25%
Hardness	Tsawg dua lossis sib npaug rau 143 HB

Sab nraud txoj kab uas hla (OD): 14 mm - 711 mm

Phab ntsa Thickness (WT): 2mm - 60mm

Ntev: Random ntev (3-12m), taag txiav ntev (6m / 9m / 12m / 24m) raws li kev cai

Kev cai me me precision qhov ntau thiab tsawg (12.7mm OD upwards) muaj rau cov cua kub exchanger raj

Dimensional kam rau ua

Sab nraud txoj kab uas hla: ± 0.8% OD

Phab ntsa Thickness:

WT Tsawg dua lossis sib npaug rau 0.11 × OD: ± 12.5% nominal phab ntsa

WT > 0.11 × OD: ± 10% nominal phab ntsa

Ntev: ± 50mm rau qhov ntev

* Kev kho deg & Xaus

Nto tiav: Dub kub dov oxide / Pickled & Annealed (AP) / Bright annealed (BA)

Yeeb Nkab Kawg: Plain kawg / Beveled kawg rau vuam; yas kaus mom tiv thaiv - puas

Anti- xeb: Cov roj av txheej rau seaworthy thauj

* Cov khoom soj ntsuam Standard

Tag nrho cov kav dej dhau qhov kev tshuaj xyuas tag nrho ua ntej xa zaub mov:
Chemical composition spectroscopy test
Kev ntsuas tensile, qis- ntsuas qhov kub thiab txias
Nplhaib expansion / flattening test
100% Ultrasonic Testing (UT) rau sab hauv tsis xws luag
Hydrostatic leak test (tsis muaj to)
Kev ntsuas tag nrho
Kev tshuaj xyuas qhov muag pom (tsis muaj tawg, quav, lamination)
Batch marking & traceability xeem

1044745131

Daim ntawv thov

ST35.8 DIN17175 tubes yog cov khoom tseem ceeb ntawm cov kav dej rau nruab nrab - kub thermal tshuab, dav siv thoob ntiaj teb kev lag luam:

1.Power Plant & Boiler Kev Lag Luam
Tsawg / nruab nrab siab boiler cua sov raj, boiler riser raj, economizer hlab, chav sau headers, pab chav pipelines rau thermal hwj chim noj.
2.Heat Exchanger & Thermal Equipment
Plhaub & raj cua sov exchangers, cua preheaters, roj txias coils, industrial furnace heat transfer pipes.
3.Petrochemical & Fertilizer Cog
Nruab nrab-kub nruab nrab- cov txheej txheem siab cov kav dej, cov roj crude preheating raj, chiv tshuaj tiv thaiv rauv auxiliary piping.
4.Industrial Cua sov & Central Cua sov System
Factory steam kis kab, koog tsev kawm ntawv cua sov siab -kub dej kav dej, thermal roj cov kav dej.
6.Machinery & Pressure Vessel Manufacturing
Lub nkoj siab txuas cov kav dej, hydraulic thermal roj kav dej, lub cav siab -kub txias pipelines.
7.European Engineering & EPC Projects
Ua raws li German DIN & EU PED tus qauv, dav nkag rau Spain, Lub Tebchaws Yelemees, Ltalis, Poland thiab lwm yam EU kev lag luam.

Cov lus nug nquag nug (FAQ)

Q1: Qhov txawv ntawm ST35.8 thiab ST45.8 nyob rau hauv DIN17175 yog dab tsi?
A: ST35.8 yog qib qis- carbon qib nrog cov ductility zoo dua, elongation Ntau dua lossis sib npaug li 25%, haum rau kev khoov thiab cov cua kub sib txawv hauv qab qis dua lossis sib npaug li 450℃. ST45.8 muaj zog tensile ntau dua (410-530MPa) rau siab dua load, qis elongation (Ntau dua los yog sib npaug rau 21%). ST35.8 yog qhov kev xaiv tseem ceeb rau nruab nrab -kub boiler raj.
Q2: Puas tuaj yeem ST35.8 hloov ASTM A179 raj ncaj qha?
A: Yog, lawv yog cov qhab nia sib npaug. ST35.8 ua raws li DIN tus qauv siab, thaum A179 ua raws li US boiler tus qauv. Rau EU kev ua lag luam, ST35.8 nyiam ua kom tau raws li PED cov ntawv pov thawj hauv zos.
Q3: Dab tsi yog qhov siab tshaj plaws ua haujlwm kub rau ST35.8?
A: Nruam ntev -lub sijhawm ua haujlwm kub tsawg dua lossis sib npaug li 450℃; luv-lub sij hawm instantaneous ncov kub tuaj yeem ncav cuag 600 degree, tsis pom zoo rau kev ua haujlwm ntev -lub sijhawm ua haujlwm siab tshaj 450℃.
Q4: Daim ntawv pov thawj twg koj tuaj yeem muab rau kev xa tawm?
A: Peb muab Mill Test Certificate EN 10204 3.1 / 3.2, SGS soj ntsuam daim ntawv qhia, CE cim (PED 2014/68/EU), ISO 9001 Hoobkas ntawv pov thawj, thib peb - tog BV / VERITAS tshuaj xyuas raws li cov neeg thov.
Q5: Yam tsawg kawg nkaus txiav txim kom muaj nuj nqis koj txais?
A: Txheem MOQ: 1 metric tuj; Kev txiav txim me me Loj dua lossis sib npaug li 500kg tau txais kev txiav txim siab nyias nyias - phab ntsa cua kub exchanger raj. Kev sib xyaw qhov ntau thiab tsawg hauv ib qho kev xa khoom tau txais kev txhawb nqa.
Q6: Puas muaj kev tshaj tawm - kev pabcuam?
A: Yog, peb muab cov yeeb nkab txiav, khoov, U- dabtsi yog khoov rau cov cua kub exchangers, bevel machining, anti-corrosion txheej (3LPE) thiab customized ntev txiav.
Q7: Qhov kev kho cua sov dab tsi ua ST35.8 raj xa?
A: Tag nrho cov raj xa mus rau hauv lub xeev normalized (NBK) raws li qhov yuav tsum tau ua DIN 17175, tshem tawm cov kev ntxhov siab sab hauv thiab ruaj khov siab -kub kev ua haujlwm. Txias- cov raj uas tsis muaj kev ua haujlwm tsis raug tso cai rau kev pabcuam siab.
Q8: Ntev npaum li cas koj lub sijhawm khoom xa tuaj?
A: Txheem Tshuag ntau thiab tsawg: 7-10 hnub; customized tsis yog{2}} qauv OD/WT: 20-30 hnub; bulk kev txiav txim siab tshaj 100 tons: cov sij hawm sib tham tau.