Specifications
ASTM A106 Qib B Seamless yeeb nkab Specification:
TxujASTM A106 / A106M (sib npaug rau ASME SA106M).
Qib: Qib B - muaj zog dua thiab cov ntsiab lus carbon dua qib A.
Ua haujlwm kub: Haum rau425 degree, zoo tagnrho rau cov kav dej loj thiab cov tshuab boiler.
Chemical Composition (Qib B)
| Element | Cov ntsiab lus (%) |
| Cov pa roj carbon (C) | Tsawg dua los yog sib npaug li 0.30 |
| Manganese (Mn) | 0.29–1.06 |
| Phosphorus (P) | Tsawg dua lossis sib npaug li 0.035 |
| Sulfur (S) | Tsawg dua lossis sib npaug li 0.035 |
| Silicon (Si) | Ntau dua lossis sib npaug li 0.10 |
Mechanical Properties (yam tsawg kawg nkaus)
| Khoom | Tus nqi |
| Yield zog | Ntau dua lossis sib npaug li 240 MPa |
| Tensile zog | Ntau dua lossis sib npaug li 415 MPa |
| Elongation | Ntau dua lossis sib npaug li 21% (ntawm 50mm ntsuas qhov ntev) |
Dimensions & Phab ntsa Thickness
ASTM A106 Qib B seamless steel yeeb nkab qhov ntev thiab phab ntsa tuabyog standardized nyob rau hauvASME B36.10M, nrog qhov ntau thiab tsawg ntawm NPS 1/8 "mus rau 48" (DN6 txog DN1200). Hauv qab no yog tus sawv cevdimensional reference tablerau qhov ntau thiab tsawg NPS:
| NPS (hauv) | DN (hli) | Sab nraud txoj kab uas hla (mm) | SCH 10 | SCH 40 (STD) | SCH 80 (XS) | XXS |
|---|---|---|---|---|---|---|
| 1/8 | 6 | 10.3 | 1.73 | 2.41 | 3.02 | - |
| 1/4 | 8 | 13.7 | 2.24 | 2.77 | 3.40 | - |
| 1/2 | 15 | 21.3 | 2.77 | 3.73 | 5.56 | 7.47 |
| 3/4 | 20 | 26.7 | 2.87 | 3.91 | 5.74 | 7.82 |
| 1 | 25 | 33.4 | 3.38 | 4.55 | 6.35 | 9.09 |
| 1.5 | 40 | 48.3 | 3.68 | 4.85 | 7.14 | 10.15 |
| 2 | 50 | 60.3 | 3.91 | 5.54 | 8.74 | 11.07 |
| 3 | 80 | 88.9 | 5.49 | 7.62 | 11.13 | 15.24 |
| 4 | 100 | 114.3 | 6.02 | 8.56 | 13.49 | 17.12 |
| 6 | 150 | 168.3 | 7.11 | 10.97 | 18.26 | 21.97 |
| 8 | 200 | 219.1 | 8.18 | 12.70 | 22.23 | 26.97 |
| 10 | 250 | 273.1 | 9.27 | 12.70 | 25.40 | 33.32 |
| 12 | 300 | 323.9 | 9.53 | 12.70 | 25.40 | 39.67 |
| 16 | 400 | 406.4 | 9.53 | 12.70 | 26.97 | 47.62 |
| 20 | 500 | 508.0 | 9.53 | 12.70 | 26.97 | 52.37 |
| 24 | 600 | 609.6 | 9.53 | 12.70 | 26.97 | 57.12 |
Sau ntawv:
Txhua qhov loj me hauvmm.
SCH 40yog tus qauv rau feem ntau cov kev siv siab -siab.
XXS(Double Extra Strong) phab ntsa tuab feem ntau muaj rau NPS Tsawg dua lossis sib npaug li 12 ".
Kev kam rau ua: OD ± 1%, phab ntsa thickness -12.5% rau +20%.
kev tsim khoom
ASTM A106 Qib B Seamless Yeeb Nkab:
| Kauj ruam | Txheej txheem theem | Cov ntsiab lus tseem ceeb |
|---|---|---|
| 1 | Kev npaj raw khoom | High-cov pa roj carbon steel zoo (xws li, 20# steel) raug tshuaj xyuas thiab ntxuav kom tshem tawm cov nplai, xeb, lossis impurities. |
| 2 | Cua sov | Billets yog rhuab rau ~1200 degreenyob rau hauv ib lub qhov cub hluav taws xob rau cov yas yas ua ntej tho. |
| 3 | Piercing | Siv lub tshuab rotary piercer los yog mandrel zeb los tsim lub hollow "niam raj" los ntawm kev thawb lub billet mus rau mandrel. |
| 4 | Kub Rolling | Cov niam lub raj yog dov nyob rau hauv tsis siv neeg los yog nruam mills kom txo txoj kab uas hla thiab phab ntsa thickness nrog nruj tolerances (± 12.5%). |
| 5 | Sizing & Stretch Txo | Cov kav dej dhau los ntawm qhov loj me thiab ncab-txo cov mills kom ua tiav txoj kab uas hla sab nraud thiab txhim kho qhov chaw tiav. |
| 6 | Kev kos duab txias (yeem) | Rau txias- cov kav dej: pickling, lubrication, thiab kos los ntawm kev tuag ntawm chav tsev kub kom siab dua thiab lub zog. |
| 7 | Kev kho cua sov | normalizingntawm900-930 degreeUa raws li cov cua txias kom ua kom zoo dua cov qauv nplej thiab txhim kho cov khoom siv kho tshuab. |
| 8 | Ncaj & Txiav | Multi- yob straightening tshuab yog curvature; cov kav dej raug txiav mus rau qhov ntev (6m lossis 12m). |
| 9 | Tsis yog -Kev Ntsuas Kev Puas Tsuaj (NDT) | 100% Kev kuaj ultrasonic (UT)thiab/los yogEddy Current Testing (ET)rau sab hauv thiab nto defects. |
| 10 | Hydrostatic Test | Txhua lub yeeb nkab raug kuaj ntawm1.5 × tsim siablos xyuas kom meej cov xau nruj thiab cov qauv kev ntseeg siab. |
| 11 | Marking & Txheej | Kev cim ruaj khov (tus qauv, qib, tus lej kub); xaiv xim dub lossis 3LPE txheej rau kev tiv thaiv corrosion. |
| 12 | Ntim | Bundled nrog steel straps, kawg caps ntsia, thiab npaj rau kev xa khoom. |
| 13 | Kev soj ntsuam zaum kawg & Certification | Cov qauv kuaj (tensile, khoov, cuam tshuam); tshaj tawm MTR, thib peb-cov ntaub ntawv tshaj tawm (BV, TUV, SGS), thiab cov ntaub ntawv ua raws. |
Kev xeem zoo
★Hydrostatic Test: 1.5 × ua haujlwm siab.
★ NDT: 100% ultrasonic (UT) lossis eddy tam sim no kuaj (ET).
★ Kev Ntsuas Kev Ntsuas: Charpy V-notch test for nuclear or low-temperature applications.
Daim ntawv thov
★ Roj & Roj: High-siab reactor piping, heat exchanger tubes.
★ Cov nroj tsuag muaj zog: Supercritical chav kab (piv txwv li, Φ406 × 50mm ntawm 541℃).
★Gas kis tau tus mob: Ntev -kab raj xa dej.
★Boiler Systems: Superheater thiab reheater raj.
Cov khoom qhia
tiv tauj
peb nyob ntawm no rau koj
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