S301 Al≥99.5 Goodductilityandcorrosionresistance.Gasweldingandargonarcweldingofpurealuminum. 塑性好、耐蝕。純鋁氣焊、氬弧焊用 ER1100 S311 Si5AlRem. Corrosionresistance,widerangeofusage.Gasweldingandargonarcweldingofaluminumalloysotherthanhighmagnesiumalloys. 抗裂性好，通用性大。鋁合金氣焊、氬弧焊用。不宜用高鎂合金 ER4043 S321 Mn1.3AlRem. Goodcorrosionresistance,weldabilityandductility.Gasweldingandargonarcweldingofaluminumalloys. 良好的耐蝕性、可焊性及塑性。鋁合金氣焊、氬弧焊用 　 S331 Mg5Mn0.4 AlRem. Corrosionresistanceandhighstrength.Argonarcweldingofaluminumalloys. 耐蝕，強度高。鋁合金氬弧焊用 ER5183