Molybdenum thiab Chromium Molybdenum Thaum tshav kub kub Resistant SteelVuamHluav taws xob
R306
GB/T E5516-B2
AWS A5.5 E8016-B2
Nqe lus piav qhia: R306 yog pearlitic tshav kub-resistant steel electrode nrog qis-hydrogen poov tshuaj txheej uas muaj 1% Cr - 0.5% Mo. Ob leeg AC thiab DC tuaj yeem siv tau, thiab tuaj yeem txuas rau txhua txoj haujlwm.Lub vuam yuav tsum tau preheated rau 160 ~ 250 ° C ua ntej vuam.
Daim ntawv thov: Siv rau vuam Cr 1% - Mo 0.5% tshav kub-resistant steel uas nws ua hauj lwm kub yog qis dua 520 ℃, xws li boiler kav, siab hlab ntsha, vaporizers thiab roj av refining khoom, thiab lwm yam.
Tshuaj muaj pes tsawg leeg ntawm weld hlau (%):
| C | Mn | Si | Cr | Mo | S | P |
| 0.05 ~ 0.12 hli | 0.50 ~ 0.90 hli | ≤ 0.60 | 0.80 ~ 1.50 Nws | 0.40 ~ 0.65 hli | ≤ 0.030 | ≤ 0.030 |
Mechanical zog ntawm weld hlau:
| Cov khoom kuaj | Tensile zog Mpa | Yield zog Mpa | Elongation % | Tus nqi cuam tshuam (J) Ib txwm Temp. |
| lav | ≥540 | ≥440 | ≥17 | ≥47 |
Pom zoo tam sim no:
| Qws txoj kab uas hla (mm) | 2.5 | 3.2 | 4.0 | 5.0 |
| Vuam tam sim no (A) | 60 ~ 90 | 90-130 Nws | 140 ~ 180 ib | 180 ~ 210 ib |
Daim ntawv ceeb toom:
1. Cov electrode yuav tsum tau ci rau 1 teev ntawm ib ncig ntawm 350 ℃ ua ntej vuam ua haujlwm;
2. Nws yog ib qho tseem ceeb los ntxuav cov xeb, roj nplai, dej, thiab impurities ntawm vuam qhov chaw ua ntej vuam.
