蘇州供應ML08AL冷墩線盤條優質ML08AL冷墩線_冷墩鋼_優特鋼_冶金礦產_貨源

材質：ML08A1	產地/廠傢：寶鋼	用途：螺栓,螺母,螺釘,鉚釘
倉庫：現貨	規格：Φ0.5-40

蘇州恒利達金屬材料有限公司

>.>>>產品描述

>.>>ML08AL碳素冷鐓鋼

材料名稱：冷鐓鋼

牌號：nt face="Arial">ML08nt>標準：nt face="Arial">GB/T 6478-1986nt>

>.>>>ML08AL碳素冷鐓鋼化學成分

碳 nt face="Arial">C nt>nt face="宋體">：nt>nt face="Arial">0.05nt>nt face="宋體">～nt>nt face="Arial">0.12(nt>nt face="宋體">允許偏差nt>nt face="Arial">:nt>nt face="宋體">±nt>nt face="Arial">0.01)nt>

矽 nt face="Arial">Sint>nt face="宋體">：≤nt>nt face="Arial">0.03;nt>nt face="宋體">采用堿性電爐冶練時，≤nt>nt face="Arial">0.17nt>

錳 nt face="Arial">Mnnt>nt face="宋體">：nt>nt face="Arial">0.20nt>nt face="宋體">～nt>nt face="Arial">0.50(nt>nt face="宋體">允許偏差nt>nt face="Arial">:nt>nt face="宋體">±nt>nt face="Arial">0.02)nt>

硫 nt face="Arial">S nt>nt face="宋體">：≤nt>nt face="Arial">0.035nt>

磷 nt face="Arial">P nt>nt face="宋體">：≤nt>nt face="Arial">0.035nt>

鉻 nt face="Arial">Crnt>nt face="宋體">：允許殘餘含量≤nt>nt face="Arial">0.020nt>

鎳 nt face="Arial">Nint>nt face="宋體">：允許殘餘含量≤nt>nt face="Arial">0.020nt>

>.>>>ML08AL碳素冷鐓鋼力學性能

抗拉強度 σnt face="Arial">b (MPa)nt>nt face="宋體">：≥nt>nt face="Arial">324(33)nt>

屈服強度 σnt face="Arial">s (MPa)nt>nt face="宋體">：≥nt>nt face="Arial">196(20)nt>

伸長率 δnt face="Arial">5 (nt>nt face="宋體">％nt>nt face="Arial">)nt>nt face="宋體">：≥nt>nt face="Arial">33nt>

斷麵收縮率 ψ nt face="Arial">(nt>nt face="宋體">％nt>nt face="Arial">)nt>nt face="宋體">：≥nt>nt face="Arial">60nt>

硬度：nt face="Arial">(nt>nt face="宋體">熱軋nt>nt face="Arial">)nt>nt face="宋體">≤nt>nt face="Arial">131HB,nt>nt face="宋體">壓痕直徑≥nt>nt face="Arial">5.2mmnt>

>.>>>ML08AL碳素冷鐓鋼

熱處理規范：加熱到較AC3臨界點高30～50℃的溫度，保溫時間不少於30min，空冷。