Muhandislik uchun bepul vosita
Po'lat Markasi Ekvivalenti & CE Kalkulyatori
EN, AISI, DIN, JIS standartlari bo'yicha po'lat markalarini o'zaro solishtiring. Uglerod ekvivalenti (CE), payvandlanuvchanlik va oldindan qizdirish haroratini hisoblang.
EN / W.Nr.
AISI / SAE
CE IIW
AWS D1.1
Results
Uglerod Ekvivalenti CE (IIW)
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Payvandlanuvchanlikni Baholash
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Oldindan Qizdirish Tavsiyasi
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Pcm (Ito-Bessyo)
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Marka Ekvivalentlari
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Odatiy Oqish Chegarasi / UTS
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| EN | W.Nr. | AISI | DIN | JIS | Type | CE |
|---|
Uglerod Ekvivalenti — IIW Formulasi
Uglerod Ekvivalenti — Pcm (Ito-Bessyo)
Past ko'mir mikroqotishmali po'latlar uchun yaxshiroq (C < 0,18%):
Payvandlanish Tasnifi
| CE Range | Weldability | Preheat |
|---|---|---|
| < 0.35 | Good | Yo'q / ixtiyoriy |
| 0.35 – 0.40 | Good–Fair | 50–100 °C, t > 25 mm bo'lganda |
| 0.40 – 0.45 | Fair | 100–150 °C |
| 0.45 – 0.50 | Fair–Poor | 150–200 °C |
| 0.50 – 0.60 | Poor | 200–250 °C |
| > 0.60 | Very Poor | 250–300 °C, maxsus texnologik tartiblar |
Amaliy Misol
Misol — S355J2 (1.0577)
Tipik kimyoviy tarkib: C=0.18, Mn=1.50, Cr=0, Mo=0, V=0.05, Ni=0, Cu=0
CE = 0.18 + 1.50/6 + (0+0+0.05)/5 + (0+0)/15 = 0.18 + 0.25 + 0.01 = 0.44
Weldability: Fair → Preheat 100–150 °C recommended for t > 20 mm
Vibromera — Ko'chma Balanslashtirish & Tebranish Tahlili
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