What is stainless steel? Why does stainless steel have different grades?What kind of stainless steel is not easy to rust?
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The non-destructive testing technologies include liquid penetrant testing, magnetic particle testing, eddy current testing, radiographic testing, ultrasonic testing, etc.
Machining error refers to the degree of deviation between the actual geometric parameters of the part after machining and the ideal geometric parameters.
A must-have instruction book for heat treatment workshops for foundries.
304 SS is a common material in stainless steel, it is also called 18/8 stainless steel in the industry, meaning it contains more than 18% chromium and more than 8% nickel.
In the manufacturing field, zinc, nickel, and chrome plating are the most widely used.
45# is the grade of steel, which is a high-quality carbon structural steel, corresponding to the Japanese standard S45C, the American standard: 1045, and the German standard C45.
1. caused by defects in raw materials
2. caused by inclusions … … …
It mainly uses the artificial simulated salt spray environmental conditions created by the equipment to evaluate the corrosion resistance of products or metal materials.
Annealing, normalizing, quenching, tempering, solution treatment…
Rockwell hardness (HR);
Brinell hardness (HB);
Vickers hardness (HV);
Knoop hardness (HK)……
Causes and solutions of shrinkage, roughness, cracks, spherical protrusions, and flash.
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