Analysis of Stainless Steel Material for Metal Stamping Parts

Dongguan Changdong Metal Stamping Parts Co., LTD., founded in 2012, located in Dalang Town, Dongguan City, is one of China professional metal stamping parts manufacturer, specialized in various size of metal stamping parts production.

Stainless steel is a common material used in metal stamping parts. Dongguan Changdong Metal Stamping Parts Co., Ltd. has a detailed analysis of stainless steel materials as follows:

1. Definition:

The abbreviation of the code for Steel Use Stainless in the Japanese JIS standard, that is, stainless steel plate. Commonly used SUS are SUS301, SUS303, SUS304, SUS403, SUS430, SUS316....

According to the hardness, there are 1/4H, 1/2H, 3/4H, H (full hard) and EH (hardened).

2. Classification:

SUS301: Suitable for elastic use, high carbon content, not easy to elastic fatigue, poor ductility, not easy to stretch. In structural design, it is mostly used for spring design.

SUS304: Not suitable for elastic use, low carbon content, low hardness, relatively soft. Good corrosion resistance, heat resistance, mechanical properties, good room temperature processing performance such as deep drawing and bending, and will not harden after heat treatment. Stainless steel products such as water cups, kitchen and bathroom basins are all SUS304. 304 stainless steel is positioned as "food grade" metal by the national standard - normal contact with water, tea, coffee, milk, oil, salt, sauce, vinegar, etc. is no problem.

SUS316: Good plasticity, toughness, cold deformation, welding process performance, and high temperature strength. Due to the addition of Mo (2~3%), corrosion resistance, especially excellent corrosion resistance. Therefore, 316 is also commonly used to make thermos cups. As a thermos cup product performance, 304 stainless steel material is sufficient. However, 316 stainless steel is a further upgrade on the basis of 304 stainless steel (controlling the proportion of impurities and adding molybdenum) - stronger corrosion resistance. However, the stronger the product, the higher the cost. Therefore, the price of thermos cups made of 316 material is often higher.

SUS403: The material contains more impurities (impure), resulting in unstable hardness. In most applications, SUS301 and SUS304 have high versatility. In high-strength elastic and friction working environments, SUS301 has greater advantages; when using materials for welding, SUS304 has greater advantages.

3. Brand: