Molybdenum thiab Chromium Molybdenum Thaum tshav kub kub Resistant Steel Vuam Electrode
r407 ua
GB/T E6015-B3
AWS A5.5 E9015-B3
Nqe lus piav qhia: R407 yog pearlitic tshav kub-resistant steel electrode nrog qis-hydrogen sodium txheej uas muaj 2.5% Cr - 1% Mo. Siv DCEP (direct tam sim no electrode zoo) thiab tuaj yeem welded hauv txhua txoj haujlwm.Lub vuam yuav tsum tau preheated rau 200 ~ 300 ° C ua ntej vuam.
Daim ntawv thov: Siv rau vuam kub-kub thiab high-pressure pipelines nrog ua hauj lwm kub hauv qab 550 ° C, hluavtaws chemical machinery, roj av cracking 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 | ≤0.50 | 2.00-2.50 Nws | 0.90 ~ 1.20 Nws | ≤ 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 | ≥590 | ≥490 | ≥15 | ≥47 |
| Kuaj | 600 ~ 680 | ≥500 | 18~21 ib |
Diffusion hydrogen ntsiab lus ntawm deposited hlau: ≤4.0mL / 100g (glycerin method)
X-ray kuaj: qib kuv
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 ~ 120 hli | 140 ~ 180 ib | 170-210 ib |
Daim ntawv ceeb toom:
1. Cov electrode yuav tsum tau ci rau 1 teev 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.
