不锈钢SUS301 Cr（铬）的含量较SUS304低，耐蚀性较差，但经过冷加工能获得很好的拉力和硬度，弹性较好，多用于弹片弹簧以及防EMI。
5
Stainless steel SUS304 one of the most widely used stainless steel,
because containing Ni (nickel) than containing Cr (chromium) steel
richer corrosion resistance, heat resistance, with very good mechanical
properties, no heat treatment hardening phenomenon, no elasticity.
5.不锈钢SUS304 使用最广泛的不锈钢之一，因含Ni（镍）故比含Cr（铬）的钢较富有耐蚀性、耐热性，拥有非常好的机械性能，无热处理硬化现象，没有弹性。
What are the main materials commonly used for stamping processing
常用冲压加工材料主要有哪些
Stamping processing has the following characteristics:
冲压加工具有以下特点：
1,
in the process of separation or forming, the thickness of the sheet
metal changes little, and the internal organization does not change;
1、在分离或成形过程中，板料的厚度变化很小，内部组织也不产生变化；
2, high productivity, easy to achieve mechanization, automated production;
2、生产率很高，易实现机械化、自动化生产；
3,
the size of the stamping parts is accurate, the surface is smooth,
generally no longer processed or only supplemented by mechanical
processing can be used as needed;
3、冲压制件尺寸精确，表面光洁，一般不再进行加工或仅按需要补充进行机械加工即可使用；
4,
a wide range of adaptation, from small instruments to large car beams
can be produced, and can produce more complex shape stamping parts;
4、适应范围广，从小型的仪表到大型的汽车横梁等均能生产，并能制出形状较复杂的冲压制件；
5.
The mold used for stamping has high precision, complex manufacturing
and high cost, so it is mainly suitable for mass production.
5、冲压使用的模具精度高，制造复杂，成本高，所以主要适用于大批量生产。
