GCr15軸承鋼
GCr15軸承鋼(gang)是合金(jin)含量(liang)少、性(xing)(xing)(xing)能好、應用最廣泛的高(gao)碳(tan)鉻(ge)軸承鋼(gang)。淬火回(hui)火后,硬(ying)度(du)高(gao)且均勻,耐磨性(xing)(xing)(xing)好,接觸(chu)疲(pi)勞(lao)性(xing)(xing)(xing)能高(gao)。該鋼(gang)冷加工(gong)塑性(xing)(xing)(xing)中等,切削性(xing)(xing)(xing)能一般,焊(han)接性(xing)(xing)(xing)能差,對(dui)白點形成的敏感性(xing)(xing)(xing)高(gao),回(hui)火脆(cui)性(xing)(xing)(xing)大(da)。GCr15軸承鋼(gang),含c0.95-1.05、mn0.25-0.45、si0.15-0.35。調質后,硬(ying)度(du)高(gao)且均勻,耐磨性(xing)(xing)(xing)和接觸(chu)疲(pi)勞(lao)強(qiang)度(du)高(gao),熱加工(gong)性(xing)(xing)(xing)能好。合金(jin)元素(su)含量(liang)少,價格相對(dui)便宜。