EN 10217 S275JR - Kev nthuav qhia
Tseem ceeb:Lub npeS275 JRyog astructural steel qiblos ntawmTS EN 10025, tsis yog lub siab yeeb nkab qib hauvTS EN 10217. Qhov no yog ibcommon specification yuam kev.
TS EN 10217(Pressure Tubes) siv"P" ua ntejQib: P195, P235, P265.
S275 JRyog cov qauv hlau uas muaj 275 MPa qhov tsawg kawg nkaus lub zog, qhov "J" qhia txog 27J Charpy cuam tshuam ntawm chav tsev kub, thiab "R" qhia txog kev dov.
Yog tias koj xav tau ib qhoERW siab yeeb nkabnrog lub zog zoo sib xws rau S275JR, koj yuav tsum qhia qhov tseebEN 10217 qib.
Kho Specification rau ERW Siab Yeeb Nkab
Sib npaug EN 10217 Qib: P265
Rau daim ntawv thov siab xav tau cov khoom zoo ib yam li S275JR, qhov tseeb specification yog:
TS EN 10217-1 P265(rau kev pab cuam dav dav ntawm qhov kub thiab txias)
| Khoom | P265 (EN 10217-1) | S275JR (EN 10025 - Siv) |
|---|---|---|
| Yam tsawg kawg nkaus Yield Strength | 265 MPa rau | 275 MPa rau |
| Tensile Strength Range | 410 - 570 MPa | 370 - 510 MPa (rau t Tsawg dua lossis sib npaug li 16 hli) |
| Elongation Min | 22% | 23% (rau t Tsawg dua lossis sib npaug rau 40mm) |
| Charpy Impact | Tsis standard yuav tsum tau | 27J ntawm +20 degree(tus "J" hauv S275JR) |
| Daim ntawv thov tseem ceeb | Siab Containment | Cov qauv tsim |
Lus Cim: P265 muaj qhov qis dua nominal yield zog tab sis yog tsim thiab sim tshwj xeeb rau kev siab ncaj ncees.
EN 10217-1 P265 ERW yeeb nkab
Chemical Composition (Maximum%)
| Element | P265 |
|---|---|
| Cov pa roj carbon (C) | 0.20 |
| Manganese (Mn) | 1.20 |
| Phosphorus (P) | 0.025 |
| Sulfur (S) | 0.020 |
| Silicon (Si) | 0.35 (yog tias tua hlau) |
Lus Cim: Tighter sulfur tswj dua li cov qauv steel rau zoo weldability thiab formability nyob rau hauv siab.
Manufacturing & Testing (Qhov txawv tseem ceeb)
Weld Seam Kev Tshawb Fawb: 100% tsis yog -kev kuaj kev puas tsuaj(Eddy Tam sim no los yog Ultrasonic) ntawm tag nrho weld ntev yogyuav tsum tauRau EN 10217 siab raj
Kev Ntsuas Siab:Los yog ibKev kuaj hydrostaticlos yog ib qho kev pom zoo NDE yuav tsum tau ua pov thawj los ntawm - nruj.
Flattening Test:Ua rau ntawm ib lub nplhaib qauv thoob plaws lub vuam los xyuas qhov weld ductility.
Ntawv pov thawj:Feem ntau xav tau ib qhoKev soj ntsuam daim ntawv pov thawj 3.1.BRaws li EN 10204, muab cov txiaj ntsig kev xeem tshwj xeeb rau cov khoom siv.
Yog xav tau kev cuam tshuam Toughness (xws li S275JR's 27J)
Rau qis - kub lossis kev pabcuam dynamic qhov twg yuav tsum muaj kev cuam tshuam toughness, koj yuav tsum qhia meejkev xav tau ntxiv. Qhov kev xaiv zoo tshaj plaws yuav yog:
TS EN 10217-3: welded raj ntawm cov hlau zoo hlau
Qib zoo liP275 NL1los yogP275 NL 2
"N"=normalized, "L"=qis kub, "1/2"=qib kub.
Cov qhab nia no suav nrog qhov yuav tsum tau kuaj xyuas Charpy.
Kev sib piv rau cov ntawv thov Toughness
| Specification | Hom Qib | Min Charpy Impact | Ntsiab Feature |
|---|---|---|---|
| TS EN 10217-1 | P265 | Tsis xav tau | Kev pabcuam dav dav |
| TS EN 10217-3 | P275 NL1 | 27J ntawm -50 degree(Tswj) | Tsawg kub siab kev pab cuam |
| TS EN 10025 | S275 JR | 27J ntawm +20 degree | Cov qauv, ambient kub |
