The characteristics and inspection items of common metal materials are as follows:

1.Steel:

Properties: It features high strength, hardness and wear resistance, and is easy to process and weld.

Testing items: hardness test, tensile test, impact test, metallographic analysis, chemical composition analysis, etc.

2. Aluminum:

Characteristics: lightweight, good thermal conductivity, corrosion-resistant, easy to process and form.

Testing items: hardness test, tensile test, chemical composition analysis, metallographic analysis, etc.

3. Copper:

Properties: Good electrical conductivity, good thermal conductivity, and excellent processability.

Testing items: hardness test, tensile test, metallographic analysis, chemical composition analysis, etc.

4. Nickel:

Properties: It has excellent corrosion resistance, magnetic properties and thermal stability.

Testing items: hardness test, tensile test, metallographic analysis, chemical composition analysis, etc.

5. Titanium:

Properties: It features high strength, corrosion resistance and biocompatibility.

Testing items: hardness test, tensile test, metallographic analysis, chemical composition analysis, etc.

6. Stainless steel:

Characteristics: It has corrosion resistance, high-temperature resistance and good strength.

Testing items: hardness test, tensile test, metallographic analysis, chemical composition analysis, dimensional measurement, etc.

7. Alloy steel:

Characteristics: It features high strength, hardness and wear resistance, and is suitable for high-temperature and high-pressure environments.

Testing items:

hardness test, tensile test, metallographic analysis, chemical composition analysis, etc.

For the above-mentioned metallic materials, common inspection items include hardness testing, tensile testing, impact testing, metallographic analysis, chemical composition analysis, and dimensional measurement, etc. These inspection items can help evaluate the performance and quality of metallic materials and ensure that they meet design and usage requirements.