JIS G3462 alloy steel kavyog siv nyob rau hauv kev lag luam roj thiab roj, boiler raj thiab cua kub exchanger raj. Cov yeeb nkab loj li ntawm 4 hli mus rau 1219.2 hli. Seamless kav muaj ib txoj kab uas hla me me, hos welded kav muaj ib txoj kab uas hla loj.
Cov yeeb nkab phab ntsa thickness ranges ntawm 0.5mm txog 20mm. JIS G3462 STBA22 alloy steel yeeb nkab muaj cov sijhawm sib txawv ntawm sch5 txog XXS. Cov kav dej ntev muaj xws li ib qho random, ob chav random thiab txiav rau qhov ntev ntev.
STBA22 alloy steel boiler thiab tshav kub exchanger raj muaj siab thermal conductivity. Cov pa roj carbon steel ua cua sov rau hauv thiab tawm ntawm cov yeeb nkab raws nws qhov ntev. Cov kav dej thiab cov raj tuaj yeem muab faib ua cov kav dej welded, cov kav dej seamless, ERW, EFW, fabricated kav thiab U-shaped kav.
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Tshuaj muaj pes tsawg leeg ntawm JIS G3462 STBA22 yeeb nkab
chemical muaj pes tsawg leeg:
Cov pa roj carbon (C): 0 15-0.25%
Silicon (Si): 0 15-0.50%
Manganese (Mn): 0 50-1 00%
Phosphorus (P): Tsawg dua lossis sib npaug rau 0.035%
Sulfur (S): Tsawg dua lossis sib npaug rau 0.035%
Chromium (Cr): 1.00-1.50%
Molybdenum (Mo): 0 40-0.60%
JIS G3462 STBA22 alloy yeeb nkab Mechanical cwj pwm:
Tensile zog (Rm): Ntau dua lossis sib npaug li 480 MPa
Yield zog (ReL): Ntau dua lossis sib npaug li 330 MPa
Elongation (A): Ntau dua lossis sib npaug li 22%
Impact toughness (-20 degree): Ntau dua lossis sib npaug li 41 J
Sab nrauv thiab phab ntsa Thickness Ntawm JIS G3462 Kub Exchanger & Boiler Tubes
| Kev ua tiav | Qhov Loj | OD Tolerance | Phab ntsa kam rau ua | ||||||
| Kub Rolled Tube | OD – 80 mmOD > 80 mmWall < 12 mmWall - 12 mm | ± {{0}}.4 hli ± 0.5% ntawm OD | ± 0.7 hli ± (5% x wallthickness + 0.1 hli | ||||||
| Kub dov peeled tube | Txhua qhov loj meWall < 12 mmWall - 12 mm | + 0.25/{2}} hli | ± 0.8 hli ± 5% x phab ntsa thickness + 0.2 hli) | ||||||
| Cold Worked tubecold-dov los yog txias-draw | OD < 40 mmOD 40 - 80 mmOD > 80 Phab ntsa Thickness< 6 mm Wall Thickness6 - 8 mm Wall Thickness > 8 | + 0.30/- 0 mm*+ 0.35/- 0 mm*+ 0.40/- 0 mm* | ± {{0}}.30 hli ± 0.35 hli ± 0.40 m | ||||||
JIS G3462 Alloy Steel Boiler Tube
GNEE Cov kev pabcuam muaj nqis ntxiv
UT (Ultrasonic kuaj)
AR (Raws li Kub Rolled nkaus xwb)
TMCP (Thermal Mechanical Control Processing)
N (Normalized)
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