1. Hardness: solid solution, 363HB and 38HRC; 480 hours, 375HB and 40HRC; 550 aging, 331HB and 35HRC; 580 aging, 302HB and 31HRC; 620 Aging, 277HB & 28HRC Overview is a martensitic precipitation hardening stainless steel material.
2. Heat treatment (heattreatment) - is the method of using heating and cooling to change the physical properties of metals. Heat treatment improves the microstructure of the steel and achieves the required physical requirements. Toughness, hardness, and wear resistance are several of the properties that are obtained through heat treatment.
3. The hardness of steel: the code of metal hardness is H. According to the different hardness test methods, the conventional expressions include Brinell (HB), Rockwell (HRC), Vickers (HV), Leeb (HL) hardness, etc., among which HB and HRC are more commonly used. HB has a wide range of applications, and HRC is suitable for materials with high surface hardness, such as heat treatment hardness, etc.
4. Hot pressure processing is not solution treatment", Solid solution pickling of plates, Tensile Strength (RM MPa): 480, Elongation Strength (RP2 MPa): 175, Elongation A %: 40, Section Shrinkage (Z %): 60.
5. Mechanical properties of S3210 stainless steel: Delivery condition: solution treatment of bars, solution pickling of plates, tensile strength (RM MPa) 520, elongation strength (RP2 MPa): 205, elongation A %: 40, section shrinkage (Z %): 50.
1. Generally, stainless steel can be divided into three hardness states: soft, semi-hard and hard.
These hardness states can be achieved by processing methods such as cold working, which can make stainless steel hard and brittle, and hot working, which can make it soft and tough.
2. With the increase of cold deformation, the strength and hardness of metal materials increase, but the plasticity and toughness decrease. Introduction The phenomenon that the strength and hardness of metal materials increase while the plasticity and toughness decrease when they are plastically deformed below the recrystallization temperature. It is also known as cold work hardening.
3. This situation will become hard. Different hardness stainless steel cold drawing, the hardness of the surface itself will become hard, cold drawing is uniformly elongated after high temperature processing, the outer surface hardness will become higher after high temperature, the change of hardness and carbon content is related, 4 series with quenching to increase the hardness is more obvious.
4. After this processing, the length of the steel increases, the diameter decreases, and the elastic limit rises to the equivalent of the raw material strengthening stage, which greatly improves the elastic limit of the material. In addition, the strain rate is reduced, and the stiffness of the material is improved.
5. AISI316 austenitic stainless steel, applied to the same cold work hardening processing deformation, respectively heated to heat treatment and then kept warm for 10min, and then cooled down at the same cold rate, the metallographic structure and grain size rating results are shown in Figure 2.
6. These will increase the hardness of the surface layer of the metal and reduce the plasticity of the surface layer metal deformation, which is called cold work hardening. Metal materials - the use of stainless steel in life Stainless steel is the mainstream material for making various kitchen appliances in daily life.