A420 WP L3 WP L6 Luj tshib nrog kev tsim kho zoo thiab corrosion tsis kam
Cov hlau roj carbon hlau yog cov cov pa roj carbon thiab cov pa roj carbon monoxide rau li 1% thiab cov khoom siv manganese ntxiv rau li 1%, nrog rau cov hlau tshwj xeeb. Rau cov pa roj carbon hlau, tsis muaj cov qib tsawg kawg tau teev rau lwm cov khoom siv, tab sis lawv feem ntau muaj manganese. Cov ntsiab lus siab tshaj plaws ntawm manganese, silicon thiab tooj yuav tsum tsawg dua 1.65 wt.% Thiab softer, tab sis yooj yim rau tshuab thiab weld; Thaum siab cov pa hlau muaj zog dua, nws nyuaj rau lub tshuab.
Nyob rau ib qho kev qhia zoo ib yam li ASTM A105, siv cov hau kev xws li kev hloov pauv, lossis quenching, lossis quenying, lossis quenching tuaj yeem tuaj yeem hais txog kev hloov pauv ntawm cov tshuab A105 reducer.
Tsis muaj cov ntsiab lus sib txawv - siv ua ib qho kev sib txawv, tsis yog lwm hom hlau, uas ua rau txiv ntoo thiab bolts hu ua tsawg tus nqi bolts. Carbon Steel txiv ntseej thiab cov qib kub tau muab faib ua peb pawg sib txawv raws li cov ntsiab lus carbon me me, nruab nrab thiab cov pa roj carbon ntau.
Cov hlau me me yog qhov tsis muaj zog thiab softer, tab sis yooj yim rau tshuab thiab weld; Thaum siab cov pa hlau muaj zog dua, nws nyuaj rau lub tshuab.