DIN 2391 Seamless Precision Steel Tubes
Txheej txheem cej luam
TIAB SA 2391yog German Industrial Standard rauseamless precision steel rajnrogtshwj xeeb qhov tseeb qhov tseeb. Cov hlab no yog tus cwj pwm los ntawm kev nruj nruj heev ntawm qhov ntev, zoo heev nto tiav, thiab cov khoom siv kho kom zoo ib yam. Lawv siv rau hauv daim ntawv thov uas xav tau qhov ntev thiab txhim khu kev qha, xws li hydraulic kheej kheej, pneumatic systems, bearings, thiab mechanical engineering applications.
Qhov tseem ceeb Distinction:Tsis zoo li cov kav dej siab, DIN 2391 tsom raudimensional precision thiab mechanical zoges tsis txhob muaj peev xwm tuav tau.
Ntu Qauv & Qib
DIN 2391 muaj ob qhov tseem ceeb:
| Ib feem | Title | Ntsiab Feature |
|---|---|---|
| DIN 2391 Tshooj 1 | Seamless precision steel raj - Kev xa khoom xa tuaj | Cov kev cai dav dav, qib, kev xeem |
| DIN 2391 Tshooj 2 | Seamless precision steel raj - Qhov ntev | Precise dimensional tables |
Common Steel Qib:
| Qib Qib | Khoom Txheem | Daim ntawv thov |
|---|---|---|
| St 35 | DIN 1629 / EN 10216-1 | Lub hom phiaj dav dav, qis zog |
| St 52 | DIN 17175 / EN 10216-2 | Kev siv zog ntau dua |
| C 10, C 15, C 35, C 45 | DIN 17210 / EN 10083 | Case hardening los yog kub kho steels |
| E 295, E 335, E 360 | DIN 17100 / EN 10025 | Cov qauv hlau nrog cov khoom tshwj xeeb |
| 42CrMo4 | DIN 17200 / EN 10083 | Alloy steel rau siab zog |
| X5CrNi18-10 (304) | DIN 17440 / EN 10088 | Stainless hlau (Part 1 npog qhov no ib yam nkaus) |
Nco tseg:Cov ntaub ntawv qib tau teev tseg nyias; DIN 2391 txhais tau tiastube manufacturing xav tau, tsis yog steel chemistry.
Cov yam ntxwv tseem ceeb ntawm DIN 2391 Tubes
1. Dimensional Precision:
nruj tolerancesnyob rau sab nraud txoj kab uas hla thiab phab ntsa thickness
Zoo heev roundnessthiab ncaj
Raws li qhov ntevraws tag nrho ntev
Smooth nto tiav
2. Kev tsim khoom zoo:
Seamless kev tsim kho(tsis muaj welds)
Tswj microstructure
Yeem kev kho cua sov(annealed, normalized, quenched & tempered)
Tshwj xeeb nto tiavmuaj
3. Kev xeem nruj:
Yuav tsum tau soj ntsuam qhov ntev
Mechanical kuaj(tensile, hardness)
Kev tshuaj xyuas qhov zoo
Kev xaiv uas tsis yog -kev kuaj kev puas tsuaj
Mechanical Properties (Piv txwv)
Rau Cov Qib Siab:
| Khoom siv | Yield zog Min (MPa) | Tensile zog (MPa) | Elongation Min (%) |
|---|---|---|---|
| St 35 (normalized) | 235 | 360-480 | 25 |
| St 52 (normalized) | 355 | 510-650 | 22 |
| E 295 | 295 | 490-610 | 21 |
| E 335 | 335 | 590-710 | 18 |
| 42CrMo4 (QT) | 650 | 900-1100 | 12 |
Lus Cim: Cov khoom yog nyob ntawm qhov kev kho cua sov.
Dimensional Tolerances (Tight nruj heev)
Sab nraud txoj kab uas hla (Piv txwv rau Tshooj 1):
| OD Ntau (mm) | Siab ntev h8 | Siab ntev h9 | Kev kam rau siab h10 |
|---|---|---|---|
| 3-6 | ± 0.018 hli | ± 0.030 hli | ± 0.048 hli |
| 6-10 | ± 0.022 hli | ± 0.036 hli | ± 0.058 hli |
| 10-18 | ± 0.027 hli | ± 0.043 hli | ± 0.070 hli |
| 18-30 | ± 0.033 hli | ± 0.052 hli | ± 0.084 hli |
| 30-50 | ± 0.039 hli | ± 0.062 hli | ± 0.100 hli |
| 50-80 | ± 0.046 hli | ± 0.074 hli | ± 0.120 hli |
| 80-120 | ± 0.054 hli | ± 0.087 hli | ± 0.140 hli |
ISO Tolerance Qib:
h6, h7:Super precision (kev txiav txim tshwj xeeb)
h8:High precision (tus qauv rau DIN 2391)
h9, h10:Kev lag luam precision
Phab ntsa Thickness Tolerances:
| Phab ntsa Thickness (mm) | Ua siab ntev |
|---|---|
| Tsawg dua los yog sib npaug rau 1.0 | ± 0.10 hli |
| 1.0 - 3.0 | ± 10% ntawm nominal |
| > 3.0 | ± 8% ntawm nominal |
Ntau nruj dua li cov kav dej ntev ntev (feem ntau ± 12.5%)
Lwm Yam Tolerances:
Ncaj nraim:Feem ntau 0.5 hli ib 'meter' (yuav yog 0.2 hli / m tshwj xeeb)
Roundness:Nyob rau hauv OD kam rau ua
Nto Roughness:Ra Less tshaj los yog sib npaug rau 3.2 μm raug (tuaj yeem yog Ra Tsawg dua lossis sib npaug rau 1.6 μm tshwj xeeb)
Ntev:± 1 hli rau kev txiav ntev
Kev tsim khoom
Kev tsim tshwj xeeb rau Precision Tubes:
Kev xaiv khoom siv:High - zoo steel nrog cov khoom zoo ib yam
Kub ua haujlwm:Mannesmann tho, tab sis nrog kev tswj kom meej
Kev kos duab txias:Ntau dhau los ntawm kev tuag rau qhov tseeb
Kev kho cua sov:Annealing, normalizing, los yog quenching & tempering
Straightening:Precision roller straightening
Ua tiav:Txiav, deburring, kho qhov chaw
Kev tshuaj xyuas:100% kev soj ntsuam qhov ntev thiab qhov chaw
Txias Txheej Txheem:
Lub hom phiaj:Ua kom nruj tolerances thiab du nto
Txoj kev:Sinking, plug drawing, mandrel kos duab
Cov txiaj ntsig:Txhim kho qhov tseeb qhov tseeb, zoo dua nto tiav, muaj zog ntxiv
Qhov tsis zoo:Tus nqi siab dua, lub sijhawm ntau lawm
Common Manufacturing Routes:
Kub tiav + txias kos + kub kho
Txias drawn + stress relieved
Cold drawn + hardened & tempered(rau cov hlau alloy)
Surface Conditions & Finishes
| Finish Designation | Kev piav qhia | Hom Ra (μm) | Daim ntawv thov |
|---|---|---|---|
| Dub | Raws li -kos, lub teeb scale | 3.2-6.3 | General tshuab |
| Ci ntsa iab | Pickled los yog ntxuav | 1.6-3.2 | Hydraulic thooj voos kheej kheej |
| Polished | Mechanically polished | 0.4-1.6 | Precision bearings, ncej |
| Hauv av | Hauv nruab nrab | 0.2-0.8 | High - daim ntawv thov kev ua tau zoo |
| Honed | Internal honing | 0.1-0.4 | Hydraulic thooj voos kheej kheej (ID) |
| Plated | Chrome, npib tsib xee plating | - | Hnav / corrosion kuj |
Kev xeem yuav tsum tau
Yuav tsum xeem:
| Kuaj | Txuj | Kev xav tau |
|---|---|---|
| Dimensional Check | DIN 2391 Tshooj 2 | 100% kev soj ntsuam ntawm OD, phab ntsa, ntev |
| Tensile Test | TIAB SA 50125 | Ib lub tshav kub, ib phab ntsa thickness |
| Hardness Test | TSI 50150 | Feem ntau yuav tsum tau, tshwj xeeb tshaj yog rau cov hlau alloys |
| Kev soj ntsuam saum npoo | Visual, qee zaum nthuav dav | Dawb los ntawm kab nrib pleb, seams, pits |
| Txheeb xyuas qhov ncaj | Rolling ntawm daim hlau | Tsis pub dhau qhov txwv |
Optional Testing (los ntawm kev pom zoo):
Kev kuaj ultrasonic:Rau qhov tsis xws luag
Eddy Current Testing:Rau qhov tsis xws luag
Magnetic Particle Testing:Rau nto tawg
Metallographic Examination:Rau microstructure
Kev Ntsuas Siab:Txawm hais tias feem ntau tsis xav tau rau DIN 2391
Daim ntawv thov
Primary Industries:
Hydraulic & Pneumatic Systems:Lub tog raj kheej, piston rods
Automotive:Shock absorbers, steering kab, tsav shafts
Mechanical Engineering:Precision shafts, rollers, qhia
Kev lag luam Bearing:Cov kabmob sib tw, lub tes tsho
Tshuab cuab yeej:Spindles, coj txoj kev, pub screws
Textile Machinery:Rollers, spindles
Kev lag luam luam ntawv:Rolls, lub tog raj kheej
Daim ntawv thov tshwj xeeb:
| Daim ntawv thov | Yam khoom | Qhov Tseem Ceeb |
|---|---|---|
| Hydraulic Lub tog raj kheej | 52 Ib., 355 | Ncaj, nto tiav |
| Pneumatic Lub tog raj kheej | 35 Ib., 52 | Dimensional raug |
| Kev Sib Tw Sib Tw | 100Cr6, 42CrMo4 | Hardness, roundness |
| Precision Ncej | C45, 42CrMo4 | Ncaj, nto tiav |
| Qhia Txoj Kev | E 335, E 360 | Hnav tsis kam, ncaj |
Sib piv nrog Lwm Cov Qauv
DIN 2391 vs. Pressure Pipe Standards:
| Parameter | TIAB SA 2391 | EN 10216 / DIN 17175 | API 5L / ASTM A53 |
|---|---|---|---|
| Ua kom pom tseeb | Dimensional precision | Kev tiv thaiv siab | Siab / kis tau tus mob |
| Tolerances | nruj heev (h8-h10) | Txuj (± 0.75-1.0%) | Txheem (± 0.5-1.0%) |
| Nto tiav | Zoo heev(Ra Tsawg dua lossis sib npaug rau 3.2 μm) | Standard (zeeg) | Standard (zeeg) |
| Kev Ntsuas Ntsuas | Dimensions, ncaj | Kev ntsuas siab, cuam tshuam | Kev ntsuas siab, weld kev ncaj ncees |
| Nqi | Siab dua(precision manufacturing) | Txuj | Txuj |
| Kev siv yam | Mechanical, hydraulic | Cov tshuab siab | Roj/gas kis tau tus mob |
DIN 2391 vs. DIN 2448 (Standard Seamless Tubes):
Qauv TSIS MUAJ: DIN 2391Precision raj nrog nruj tolerances
Qauv TSIS MUAJ: DIN 2448Txheem seamless raj rau lub hom phiaj dav dav
Qhov txawv tseem ceeb:Tolerances thiab nto zoo
Cov ntaub ntawv pov thawj
Cov ntaub ntawv xav tau:
DIN 50049 3.1.B Certificate:Tshaj tawm ntawm kev ua raws cai
Dimensional Inspection Report:Nrog kev ntsuas qhov tseeb
Mechanical Test Reports:Tensile, hardness raws li xav tau
Cov ntaub ntawv kho cua sov:Yog kub kho
Khoom siv Traceability:Thaum tshav kub kub naj npawb, batch identification
Hom Marking:
Tus neeg tsim khoom kev txheeb xyuas
Daim ntawv pov thawj DIN 2391
Cov ntaub ntawv qib
Dimensions (OD × phab ntsa)
Kub naj npawb
Kev kho cua sov (yog tias tsim nyog)
Tshuaj ntsuam xyuas
Ordering Information
Cov ntaub ntawv tseem ceeb Specification:
Txheem:DIN 2391 Ntu 1 (thiab Ntu 2 rau qhov loj me)
Khoom Qib:eg, St 52, 42CrMo4
Kev kho cua sov:Piv txwv li, normalized, quenched & tempered
Qhov Loj:OD kam rau ua (h8, h9, thiab lwm yam), phab ntsa thickness, ntev
Nto tiav:Piv txwv li, ci, polished, honed
Kev Xeem Xeem:Kev kuaj ntxiv yog xav tau
Ntawv pov thawj:Hom ntawv pov thawj yuav tsum tau xeem
Qauv Order:
ntawv nyeem
Precision steel tubes rau DIN 2391 Tshooj 1 Khoom: St 52 raws li DIN 17175 Kev kho cua sov: Raws li qhov ntev: 50 hli OD (h8 kam rau ua) × 5 hli phab ntsa × 3000 hli ntev Quantity: 100 daim Nto tiav: Ci ntsa iab (pickled) Straightness: 10mm / 0. Ntxiv: Hardness test report (HB) Marking: Per DIN 2391 with heat number
Kev xaiv kho cua sov
Tej yam xwm txheej:
| Qhov xwm txheej | Cim | Daim ntawv thov |
|---|---|---|
| Raws li - kos | +C | Txias kos yam tsis muaj kev kho mob tom ntej |
| Annealed | +A | Rau siab kawg machinability |
| Li qub | +N | Rau cov khoom siv sib xws |
| Quenched & Tempered | + QT | Rau siab zog (alloy steels) |
| Kev ntxhov siab | + SR | Rau qhov seem stability |
Rau cov khoom siv tshwj xeeb:
Carbon Steels (St 35, St 52):Feem ntau normalized
Case Hardening Steels (C10, C15):Annealed los yog normalized
Alloy hlau (42CrMo4):Quenched & tempered
Stainless hlau:Tshuaj annealed
Quality Assurance
Qhov tseem ceeb ntawm kev ua tau zoo:
Dimensional raug:OD, phab ntsa, roundness nyob rau hauv nruj tolerances
Nto Zoo:Tsis muaj teeb meem, qhia roughness
Ncaj nraim:Qhov tseem ceeb rau ntau yam kev siv
Mechanical Properties:Raws li qhov ntev
Microstructure:Tsim nyog rau cov khoom siv thiab kev kho mob
Kev tshuaj xyuas:
Cua Gauge / Plug Gauge:Rau kev ntsuas ID
Micrometer/Calipers:Rau OD thiab phab ntsa
Nto Roughness Tester:Rau kev ntsuas Ra
Straightedge / Rolling Test:Rau kev ncaj
Hardness Tester:Rau kev txheeb xyuas hardness
Visual / Magnified Inspection:Rau qhov tsis xws luag
Kev txiav txim siab nqi
Nqe Factors:
Qib kam rau ua:h8 nqi ntau dua h10
Nto tiav:Polished / av ntxiv tus nqi tseem ceeb
Khoom Qib:Alloy steels raug nqi ntau dua li carbon steels
Kev kho cua sov:Kev ua ntxiv ua rau tus nqi nce ntxiv
Kev Xeem Xeem:Kev kuaj ntxiv ntxiv tus nqi
Ntim:Cov khoom me me muaj nqi ntau dua
Tus nqi hwm tus nqi:
vs. txheem seamless raj:30-100% siab dua
h8 vs h10 kam rau ua:10-20% siab dua
Polished vs. ci tiav:20-50% siab dua
Alloy hlau vs. carbon steel:50-200% siab dua
Kev lag luam siv
German / European Engineering:
Standard rau precision daim ntaub ntawvhauv German machinery
Qhia dav davnyob rau hauv hydraulic kheej kheej manufacturing
Feem ntau hauv automotivecov khoom siv hluav taws xob
Siv los ntawm bearing manufacturersrau kev sib tw thiab lub tes tsho
Kev lees txais thoob ntiaj teb:
Pom zoo thoob ntiaj tebrau zoo precision tubing
Feem ntau teevhauv cov haujlwm thoob ntiaj teb nrog cov khoom siv German
Lwm txoj rauDOM (Drawn Over Mandrel) tubing hauv Asmeskas
Piv rauJapanese JIS G3445 precision tubing
Qhov xwm txheej tam sim no:
Thaum DIN 2391 tseem siv, ntau lub tuam txhab tau hloov mus rau:
TS EN 10305-1:Seamless txias drawn raj rau precision daim ntaub ntawv
Tuam txhab- cov qauv tshwj xeebnrog cov kev xav tau zoo sib xws
ISO cov qauvrau cov haujlwm thoob ntiaj teb
Niaj hnub nimno sib npaug & Migration
EN 10305 Series:
| DIN Txuj | EN sib npaug | xwm txheej |
|---|---|---|
| DIN 2391 Tshooj 1 | TS EN 10305-1 | Tam sim no European tus qauv |
| DIN 2391 Tshooj 2 | Dimension rooj nyob rau hauv EN 10305-1 | Incorporated |
EN 10305-1 Cov yam ntxwv tseem ceeb:
E 235, E 355 qib(zoo ib yam li St 35, St 52)
Cov chav kawm kam rau ua zoo sib xws(h8, h9, thiab lwm yam)
Cov kev cai niaj hnub ntawv pov thawj(EN 10204)
CE marking muaj peev xwmrau tej daim ntawv thov
Migration Recommendation:
Rau cov haujlwm tshiab, xav txog kev qhia meejTS EN 10305-1es tsis txhob DIN 2391 rau:
European kev cai ua raws cai
Cov ntaub ntawv niaj hnub xav tau
Kev lees txais thoob ntiaj teb qhov project
Muaj yav tom ntej
Technical Summary
DIN 2391 seamless precision steel rajsawv cev rauzoo tshaj plaws qibntawm seamless tubing raukev siv tshuab thiab hydraulicqhov twg qhov tseeb qhov loj me, qhov chaw tiav, thiab cov khoom sib xws yog qhov tseem ceeb.
Key Differentiators:
Exceptional Dimensional Accuracy:Tolerances rau h8 (0.039mm ntawm 50mm OD)
Superior Surface Finish:Kev xaiv los ntawm ci rau honed polish
Zoo heev Straightness:Qhov tseem ceeb rau kev siv lub tog raj kheej thiab ncej
Consistent Properties:Los ntawm kev ua tib zoo tswj kev tsim khoom
Khoom siv ntau yam:Los ntawm carbon hlau mus rau alloy thiab stainless qib
Thaum Yuav Qhia Txog DIN 2391 / EN 10305-1:
Xaiv cov raj precision thaum:
Kev siv hydraulic / pneumatic lub tog raj kheej
Precision shafts lossis cov lus qhia yog xav tau
Cov kabmob sib tw lossis lub tes tsho yog tsim
Cov cuab yeej cuab tam lub tshuab xav tau qhov tseeb
Standard yeeb nkab tolerances tsis txaus
Surface finish yog qhov tseem ceeb rau kev ua haujlwm
Xav txog cov raj txheej txheem thaum:
Kev tswj lub siab yog lub luag haujlwm tseem ceeb
Tus nqi yog thawj tus tsav tsheb
Dimensional precision tsis tseem ceeb
Nto tiav tsis tseem ceeb
Daim ntawv thov tsis tso cai rau tus nqi
Cov lus pom zoo rau kev yuav khoom:
Rau Legacy Systems:
Txuas ntxiv nrog DIN 2391 yog tias hloov cov khoom uas twb muaj lawm
Xyuas kom tus neeg muag khoom tuaj yeem ua tau raws li keeb kwm specifications
Xav txog kev hloov kho rau EN 10305-1 yog tias ua tau
Rau Cov Qauv Tshiab:
Qhia rau EN 10305-1 rau cov haujlwm nyob sab Europe
Qhia meej meej cov cai kam rau ua (h8, h9, thiab lwm yam)
Qhia meej qhov yuav tsum tau ua kom tiav
Txhais cov kev kho cua sov
Yuav tsum tau ntawv pov thawj kom raug (EN 10204 3.1/3.2)
Kev Ntsuas Zoo:
Thov daim ntawv ntsuam xyuas qhov ntev
Txheeb xyuas cov khoom siv kho tshuab kom haum raws li qhov xav tau
Kos nto tiav raws li specifications
Paub meej tias kev kho cua sov tau ua tiav
Yav tom ntej Perspective:
Thaum DIN 2391 tseem yog tus qauv hwm hauv cov tubing precision, kev lag luam maj mam hloov mus rauEN 10305 series cov qauvkom zoo dua European kev sib haum xeeb thiab cov ntawv pov thawj niaj hnub no. Txawm li cas los xij, cov kev xav tau rau cov tubing precision tsim nyob rau hauv DIN 2391 txuas ntxiv txheeb xyuas qhov kev cia siab zoo hauv kev siv tshuab engineering thoob ntiaj teb.
Rau cov ntawv thov tseem ceeb, ib txwm sab laj nrog cov chaw tsim khoom hauv lub raj kom ntseeg tau tias lawv tuaj yeem ua tau raws li koj cov kev xav tau tshwj xeeb, vim tias muaj peev xwm tuaj yeem sib txawv ntawm cov neeg tsim khoom ntawm precision tubing.
