Metal fabricators have numerous standard raw materials at their disposal that can reduce cycle times and workflow. This guide discusses the various types of raw materials that are typically used in metal fabrication.

Metal fabrication is the creation of metal parts, machinery, or components through forming, cutting, and other like processes. Common fabricatio

Casting, a fabrication process that has been in use for over 6,000 years, involves forcing liquid metal into a mold and allowing it to cool and harden in the desired shape. A high degree of custom flexibility makes casting an ideal choice for applications that require complex geometries. Raw materials used in the process typically include molten metal, but epoxies, concrete, and clay are also used. Common metals used in the casting pro

In the beginning . . .

During the first part of the 20th century, a metallurgist named Izod invented an impact test for determining the suitability of various metals to be used as cutting tools. The test involved a pendulum with a known weight at the end of its arm swinging down and striking the specimen as it stood cla

Ductile fracture. A mode of fracture that is attended by extensive gross plastic deformation.	延性/韧性断裂：一种伴随大量塑性变形的断裂方式。
Brittle fracture. Fracture that occurs by rapid crack propaga

       1、可淬硬性     虽然不如合金钢好，但能但能适用于许多零件。而对某些零件，浅层

    耐热耐磨板冶金特性

    耐磨性是成分、组织在几个方面的综合强烈影响。应用于仿CR4800化学成分与加工工艺发展了冶金结构组织，由下列因素强烈地改变了耐磨性：

脱氧方法 脱氧方法对钢的缺口韧性的影响，直接归因于脱氧操作下那些合金元素的存在及夹杂物的特征。沸腾钢一般都含有相当高的氧和氮，其钢锭的纯净度和均匀性一般都很差。沸腾钢的这些特点可以说明它的缺口韧性很差的原因。镇静钢，特别是Si-Al脱氧钢具有比沸腾钢较低的转变温度和较高的上平台能量值。半镇静钢的韧性介于沸腾钢和镇静

碳   增加，则提高转变温度，降低断裂能的沙锅内平台。碳是对缺口韧性影响比较强烈的元素。通常为达到最大韧性，必须在保持所需强度前提下，尽可能降低含碳量。

硼   采用含硼的低碳钢是可获得韧性而不降低强度

    “韧性”是金属破断前吸收能量和塑性变形的能力。金属在变形和破断时所吸收的能量是对其韧性的一种量度；相反，金属在破断之前的变形量是对金属塑性的一种量度；而导致破坏的必要的力是其强度的一种量度。当金属物体在必须承受一定的载荷下使用时，金属的强度是应予以控制的性能。如果金属必须变形为一定形状时，塑性则是应予以控制的性能。但是，如果金属必须能吸收一定量的机械能而又不破坏，

基本品级标识用于厂家之间，以及厂家与用户之间的技术交流。基本品级标识列举如下：