Q: Cov ntsiab lus carbon cuam tshuam li cas rau kev ua haujlwm ntawm seamless steel kav (siv 10 # thiab 45 # ua piv txwv)?
A: 10 # steel (tsawg carbon) muaj cov pa roj carbon tsawg, zoo plasticity, toughness thiab weldability, tab sis tsis muaj zog; 45 # steel (cov pa nruab nrab) muaj cov pa roj carbon ntau dua, muaj zog dua thiab hardness, tab sis cov yas zoo dua thiab kev sib txuas ntau dua li 10 # steel . 45# cov kav dej seamless feem ntau siv rau cov khoom siv tshuab uas xav tau lub zog siab.
Q: Dab tsi yog qhov cuam tshuam toughness ntawm ASTM A335 P22 seamless steel kav?
A: Nyob rau hauv chav tsev kub (20 degree), qhov tsawg kawg nkaus toughness (KV) ntawm ASTM A335 P22 seamless steel kav yog 27 J. Rau qis- qhov kub thiab txias kev pab cuam, qhov cuam tshuam toughness yuav tsum siab dua (xws li, 40 J ntawm -20℃).
Q: Puas API 5L X65 seamless steel kav muaj corrosion kuj?
A: API 5L X65 nws tus kheej muaj qhov yooj yim corrosion kuj, tab sis nws tsis haum rau muaj zog corrosive ib puag ncig (xws li kua qaub- hauv paus media). Rau corrosive ua hauj lwm tej yam kev mob, nws yuav tsum tau kho nrog anti-corrosion txheej (xws li 3PE anti-corrosion txheej) los yog xaiv nrog corrosion- qib alloy resistant.
Q: Dab tsi yog qhov yuav tsum tau elongation ntawm GB / T 8163 20# seamless steel kav?
A: Qhov tsawg kawg nkaus elongation ntawm GB / T 8163 20# seamless steel kav yog 24%, uas qhia txog cov yas deformation muaj peev xwm ntawm cov yeeb nkab thaum nws rub kom tawg.
Q: Qib twg ntawm seamless steel yeeb nkab haum rau siab - siab boiler dej kav kav dej?
A: ASTM A335 P91 lossis GB / T 5310 12Cr1MoVG seamless steel kav yog tsim nyog. Lawv muaj qhov zoo heev -kub tsis kam, siab tsis kam thiab nkag siab, uas tuaj yeem hloov mus rau qhov siab - kub thiab siab - qhov chaw siab ntawm boiler dej.
