ZHEJIANG YONGXIANG CABLE GROUP CO,.LTD

ZHEJIANG YONGXIANG CABLE GROUP CO,.LTD

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Name: Jason
Tel: 86-571-82481838
Fax: 86-571-82473180
E-mail: sales@weldingsolder.com
Add: Yongxiang Road Pu Er Village Linpu Town Xiaoshan District Hangzhou City Zhejiang Province China

E8015-B2

E8015-B2
Product name : E8015-B2
Item : R307
Details :
 

R307

According with GB E5515-B2
Corresponding with AWS  E8015-B2


Introduction: R307 is a kind of Cr1%-Mo0.5% pearlitic heat-resistant steel electrode with low-hydrogen natrium type coating. DCRP (Direct Current Reversed Polarity). All-position welding. The weldments should be given preheating and postweld heat treatment according to their structural features.


Uses: Used for welding Cr1%-Mo0.5% heat-resistant steel below 520℃, such as boiler pipes, high pressure vessels, equipment for petroleum refining, etc. Also used for welding 30CrMoSi cast steel.


Chemical Composition of Deposited Metal (%)
Chemical Composition
C
Mn
Si
S
P
Mo
Cr
Guarantee Value
0.05~0.12
≤0.90
≤0.60
≤0.035
≤0.035
0.40~0.65
0.80~1.50

Mechanical Properties of Deposited Metal
Test Item
Rm(MPa)
ReL或Rp0.2(Mpa)
A(%)
KV2(J)
Guarantee Value
≥540
≥440
≥17
≥47(normal temperature)
General Result
550~650
≥450
≥18
≥60

Diffusible Hydrogen Content in Deposited Metal: ≤6.0ml/100g(Glycerine Hydrogen Test)

X-ray Radiographic Inspection: ⅠDegree

Reference Current (DC+)
Electrode Diameter(mm)
φ2.0
φ2.5
φ3.2
φ4.0
φ5.0
Welding Current (A)
40~70
60~90
90~120
130~180
160~210

Instructions:
1.The electrodes must be baked under about 350℃ for an hour before welding, and used as soon as baking is completed.
2.The stains on the weldments, such as rust, oil stains, moisture, etc., must be cleared away before welding.
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