| 摘要 |
A non-alloyed basic cored wire for electric arc welding with gas shielding, comprising an internally hollow filiform metal support filled with a mixture containing weld material, slagging agents and deoxidants, characterised in that said mixture has the following chemical specification by weight: Mntot 15-19 %; Sitot 11,5-14,5 %; Fetot 34-40 %; CaO 18-22 %; MgO 6-8 %; Al2O3 5-7 %. |
