在一定磨损条件下，中硬度钢比高硬度钢耐磨。
Under certain wear condition the wear resistance of 45 steel with medium hardness is higher than that with high hardness.
一些有最高硬度的钢是自制的。
一些有最高硬度的钢是自制的。
通过冷裂敏感性试验、焊接热影响区最高硬度试验及可调拘束试验，对新型铁路车辆用TCS耐蚀钢的焊接性进行了深入系统分析。
The weldability of TCS corrosion resistant stainless steel for railway wagon was investigated by cold cracking sensitivity test, HAZ maximum hardness test and varestraint test.
PCBN刀具适合各种轴承钢、工具钢、淬火钢以及各种高硬度铸铁、喷涂、硬质合金的粗精加工。
PCBN cutters are used for rough and fine processing various of bearing steel, tool steel, chilled steel, and other many kinds of cast steel and carbide of different hardness.
用途：用于切割高硬度花岗岩、大理石，钢筋混凝土木材PV C管件砖头角钢螺纹钢等各类材料。
USES: used for cutting high hardness granite, marble, concrete timber PVC tube brick Angle steel rebar and other kinds of materials.
但我想确定一下这款表是否是高精度全钢抛光表扣处理，高硬度蓝宝石水晶防眩表面，三针走时是否精准是否有3点位置日历显示功能。
I want be sure that if they had high precision steel polishing clasp processing and had high hardness sapphire crystal surface the glar.
磨刀部分采用高硬度的硬质合金材料，将刀具表面的金属以钢屑的方式去除，磨刀时用力易于掌控，从而将较钝的刀锋快速修正成型。
The whetting part is made of high rigidity metal, will remove the knife's surface metal by steel scurf, easy to control when whetting, and then fast shape the dull blade.
采用理论计算、热影响区最高硬度试验和小铁研试验方法研究了超低碳含铜时效钢的抗裂性。
Cracking resistance of ultra-low cabon Cu-bearing age-hardening steels was studied in this paper by computing, maximum hardness in weld heat-affected zone test and Y-groove cracking test.
采用理论计算、热影响区最高硬度试验和小铁研试验方法研究了超低碳含铜时效钢的抗裂性。
Cracking resistance of ultra-low cabon Cu-bearing age-hardening steels was studied in this paper by computing, maximum hardness in weld heat-affected zone test and Y-groove cracking test.
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