Supply of carbon D707/D708 D707/D708 tungsten carbide wear-resistant electrode

Model: D707 * D708 

 Basic parameters 
 Material: Tungsten Carbide Type: welding electrode welding core diameter (mm): 3.2/4.0 :350-400 mm length 



 D707 tungsten electrode 

 Description: D707 is the use of low carbon steel welding core hydrogen sodium type coating tungsten carbide surfacing electrode, relying on tungsten carbide coating in the transition metal tungsten welding for 40 to 50%. As thick coating, so long sleeves, red in the electrode coating likely to have small pieces after peeling off, so it is appropriate DCRP, use a smaller current. 

 Application: Suitable for welding a strong resistance to wear and machine parts, rock, such as mixed soil mixing suspect leaves, earth moving and pumped into the leaves, leaves of dredging machines, high-speed sand boxes. 

 Welding metal chemical composition (%) 

 C 
 W 
 Mn 
 Si 

 1.5 ~ 3 
 40 ~ 50 
 ≤ 2 
 ≤ 4 


 Surfacing layer hardness: HRC ≥ 60 

 Note: 1, see the carbon steel welding preheat temperatures above 300 ℃, when welding low alloy steel parts for the preheating temperature is 400 ~ 500 ℃ or more, welding stainless steel parts for the preheating temperature is 600 650 ℃ 

 2, low-alloy steel and stainless steel after welding shall be 700 ℃ annealing. 

 3, before welding electrodes shall be 300 ~ 350 ℃ baking 1h. 






 D708 tungsten electrode 

 Product Name: D708 high-alloy electrode wear sales: 65 yuan / kg 

 Product specifications: 3.2/4.0/5.0 Model: D708 

 Product Category: Tungsten electrode 

 Details: D708 surfacing electrode main metal components%: C 1.5 Cr ≤ 3.00 Ni ≤ 5.00-7.00 Si ≤ 1.00 W ≤ 70-85 electrode surfacing with the transition metal tungsten carbide 65% -85%, welding core diameter 3.2 / 4.0/5.0 sophisticated technology to facilitate stable arc, slag off! 

 Features: not to preheat welding, after welding heat. High hardness, high wear resistance, erosion and wear. Solderability good. Anti-rock sand grain wear and extend equipment life 4-8 times. Surfacing hardness of ≥ 65. 

 Uses: mainly used in chemical equipment and machinery and equipment welding repair worn parts. Such as metallurgical machinery, mining machinery, turnout, jaw plate, bucket, shovel teeth, works such as quarrying, brick cutter ship, screw, mixer blades, fan blades, mineral processing machinery, engineering machinery, building materials and machinery! !