AK-EM4
Standard：
EN ISO 26304 B:S 76A4 FB SUN5M3
AWS A5.23 F11A4-EM4-M4
GB/T 12470 F76A4 -H08Mn2NiMoA
Description: AK-EM4 is a low alloy high strength steel submerged arc welding wire. With the corresponding flux, a weld with excellent mechanical properties can be obtained.
Application: With flux (such as SJ618, etc.), it is used for the welding of low-alloy and high-strength structural meshes such as lifting and transportation machinery and construction machinery, such as Q690.
Typical Chemical Composition(%):
C：≤0.10 Si：0.20-0.60 Mn：1.40-1.80 S：≤0.010 P：≤0.015 Cr: 0.60 Mo: 0.50-0.65
Typical Mechanical Properties(%):
Tensile strength (MPa) : 760-900
Yield Stress (MPa) : ≥680
Elongation (%) : ≥15
Impact values (J) : ≥27J/-40℃
