1.6541 chemical element composition content (%)
1.6541 mechanical properties.
1.6541 is a high-strength, low-alloy structural steel. It has the advantage of excellent mechanical properties, as well as good weldability and malleability. The wide range of applications of this steel includes aviation, shipbuilding, automobiles, machinery manufacturing, petrochemical and other fields.
I.16541 parameters.
1.The chemical composition of 6541 includes: Carbon(c)035%-0.45%, silicon (Si) 020%-0.35%, manganese (mn) 060%-0.90%, phosphorus (p) 0035%, sulfur (s) 0040%, chromium (cr) 080%-1.10%, molybdenum (mo) 015%-0.25%, nickel (Ni) 160%-2.00%, aluminium (al) 0050%, titanium(ti) 0050%, niobium (nb) 0050%。
1.The heat treatment process of 6541 includes quenching, tempering and normalizing. The quenching temperature is 840 -870 °C, quenching water or oil cooling; The tempering temperature is 560 -600 °C, air cooled or water cooled; The normalizing temperature is 910 -940 °C, air cooled or oil cooled.
II.1Metallographic structure and material structure of 6541.
1.The metallographic structure of 6541 is mainly composed of coarse-grained ferrite and fine-grained bainite. After quenching and tempering treatment, the grain is refined to meet the requirements of high strength and toughness. The structure of the material is a face-centered cubic crystal structure.
III. 1Performance characteristics of 6541:
1.Performance characteristics of the 6541 include:
1.High strength, high toughness, tensile strength of more than 980MPa, yield strength of more than 835MPa, elongation of more than 13%.
2.Good wear resistance and corrosion resistance, suitable for working in harsh environments such as high temperature, high pressure, corrosion, etc.
3.It is easy to process, and can be processed in a variety of ways such as cold rolling, hot rolling, cold drawing, forging, welding, etc.
4.Low temperature quenching can obtain materials with high hardness and strength.
IV. 1Mechanical properties of 6541.
1.The mechanical properties of 6541 are shown in the table below
Mechanical Properties |Numeric |
Tensile strength |980MPa or more |
Yield Strength |835MPa or more |
Elongation |13% or more |
Hardness | hrc35-40 |
Impact toughness |60 J cm or more |
V.16541 plates, round bars, forgings, seamless tubes, forging rings and other applications.
1.There are various application forms of 6541, and the more commonly used ones are plates, round bars, forgings, seamless pipes, forging rings, etc. Specific uses for these forms of application include:
1.Plate: widely used in automobile manufacturing, shipbuilding, steel structure engineering and other fields.
2.Round steel: mainly used in machinery manufacturing, automobile manufacturing, petrochemical industry and other fields.
3.Forgings: widely used in aviation, aerospace, military and other fields.
4.Seamless pipe: suitable for oil, natural gas, chemical industry and other fields.
5.Forging rings: widely used in machinery manufacturing, automobile manufacturing, military industry and other fields.
VI.1Experimental methods and conclusions of 6541.
1.The experimental methods of 6541 include tensile test, impact test, hardness test, metallographic test, etc. The conclusion of the tensile test is that the yield strength and tensile strength values meet the relevant standards; The conclusion of the impact test is that the impact toughness value meets the relevant standards; The conclusion of the hardness test is that the hardness value meets the relevant standards; The conclusion of the metallographic test is that the metallographic structure meets the relevant standards.
7. The difference between casting and forging, smelting process, how to cold roll, hot roll and cold drawing? How about electroslag and electric furnaces?
Casting and forging are two commonly used methods of forming materials. Casting is the pouring of molten metal or alloy into a mold and cooling it to obtain a part of the desired shape. Forging is the process of heating the metal to a certain temperature, and then applying pressure to plastically deform it, and finally obtain the desired shape of the part.
The smelting process includes electric arc furnace smelting, induction furnace smelting, etc. Electric arc furnace smelting uses electric arc heating to melt metals; Induction furnace smelting uses induction heating to melt the metal. In the smelting process, the composition of the steel needs to be controlled by precise temperature control and the addition of appropriate alloying elements.
Cold rolling, hot rolling, and cold drawing are commonly used processing methods. Cold rolling is the plastic deformation of steel at room temperature to achieve the desired thickness and surface quality. Hot rolling is the plastic deformation of steel after heating it to high temperatures. Cold drawing involves stretching the steel at room temperature to achieve the desired diameter and surface quality.
Electroslag furnaces and electric furnaces are commonly used equipment for melting metal. The electroslag furnace uses an electric arc to convert electrical energy into heat energy, and discharges the slag and impure substances after melting the metal; Electric furnaces use electrical resistance to convert electrical energy into heat energy, melt the metal and refine it to control the composition of the steel.
In summary, 1As a multi-purpose material with excellent performance, 6541 provides great convenience for all walks of life due to its wide range of application fields and a variety of processing methods.