Aluminumalloys铝合金S301Al≥99.5Goodductilityandcorrosionresistance.Gasweldingandargonarcweldingofpurealuminum.塑性好、耐蚀。纯铝气焊、***弧焊用ER1100S311Si5AlRem.Corrosionresistance,widerangeofusage.Gasweldingandargonarcweldingofaluminumalloysotherthanhighmagnesiumalloys.抗裂性好，通用性大。铝合金气焊、***弧焊用。不宜用高镁合金ER4043S321Mn1.3AlRem.Goodcorrosionresistance,weldabilityandductility.Gasweldingandargonarcweldingofaluminumalloys.良好的耐蚀性、可焊性及塑性。铝合金气焊、***弧焊用S331Mg5Mn0.4AlRem.Corrosionresistanceandhighstrength.Argonarcweldingofaluminumalloys.耐蚀，强度高。铝合金***弧焊用)