ty-yj502(q) C02 protects the core of medicine to weld silks angrily 
Accord with national standard gb/t 10045-2001 e501t-1 
It is equivalent to aws a5.20 e71t-1 
Comments: It's time to weld silks and protect the core of medicine to weld one for co 2 which oxidizes the titanium calcium type dreg department angrily. It weld craft to be of good performance, electric arc stabilize, splash light taking off dregging easy, welding seam take shape esthetic, very the whole position weld. Weld silk surface and inherent quality steady and reliable, weld silk degree heavy very, hand over silk to be even, it is high in efficiency to weld. 
Use: It's time to weld the low carbon steel that silks are suitable for ≥ 500mpa of tensile strength and low and shut the welding of the steel structural steel. Can be used in metallurgy extensively, industrial departments such as the heavy-duty machinery, petrochemical industry, rolling stock, vessel, container, bridge, architecture, nuclear power, pressure container and girder steel shelf,etc.. 
Melt and apply metal chemical composition '  % ) 
c mn si s p 
≤ 0.18 ≤ 1.75 ≤ 0.90 ≤ 0.030 ≤ 0.030 
Melt and apply metal mechanics performance 
Experimental project   σ b σ s δ 5 akv (j)  -20 ℃ 
Guaranteeing value ≥ 480 ≥ 400 ≥ 22 ≥ 27 
Consult the norm 
Weld the silk diameter   Weld the electric current   Voltage co2 angry flow of electric arc (l/min) 
1.2  120 -  300  20 -  30  15 -  25
1.4  140 -  320  23 -  31  15 -  25
1.6  180 -  450  25 -  32  15