Heat treatment method of 60Si2Mn round bar

60si2mnSpring steel

60si2mn standard:

gb/t 1222-2007

60si2mn characteristics and scope of application:

It is a widely used silicon-manganese spring steel for strength, elasticity and hardenability.

Slightly higher than 55si2mn. It is suitable for the production of flat springs with large loads or coil springs with a wire diameter of less than 30mm in the railway vehicle and automobile tractor industry, and is also suitable for the production of heat-resistant springs in non-corrosive media with a working temperature of less than 250 and large and important coiled springs that bear alternating loads and work under high stress.

60Si2mn Chemical Composition:

Carbon C: Silicon Si:

Manganese mn:sulfur s:

Phosphorus p:

Chromium cr:

Nickel ni:

Copper cu:

60si2mn Delivery Status:

Hot-rolled steel is delivered in heat-treated or non-heat-treated condition, and cold-drawn steel is delivered in heat-treated condition.

60si2mn Main Specifications:

60Si2Mn round bar, 60Si2Mn rolled bar, 60Si2mn cold drawn bar, 60Si2mn forging bar, 60Si2mn plate, 60Si2mn flat bar.

60Si2mn forgings, 60Si2mn forging rings, 60Si2mn machining parts, 60Si2mn pipes, 60si2mn forging cakes.

60Si2mn heat treatment methods include isothermal tempering and graded quenching, subthermal quenching and high temperature tempering, deformation heat treatment process methods. The use of this method can effectively improve the strength, toughness and service life of 60Si2Mn spring steel.

The heat treatment of 60Si2Mn spring steel includes isothermal tempering and grading quenching, subtemperature quenching and high temperature tempering, and deformation heat treatment. The use of this method can effectively improve the strength, toughness and service life of 60Si2Mn spring steel.

Summary. 20 Steel Heat Treatment Process Heat Treatment Specification: Normalizing, 910, Air Cooling.

20 steel heat treatment: As 20 steel, it is possible to achieve an ordinary quenching hardness of 30-35HRC. It's just that due to the high heating temperature, the quenching deformation is large.

1. After rough machining, the workpiece is heat-treated and quenched as a whole (920 quenched brine), and then finished. Due to the hardness requirement of 30-35HRC, it should be possible to process all processes, which is nothing more than fine turning inner and outer circles, and trimming the spline keyway. 2. The same rough machining, quenching on the surface of the inner hole or only quenching the keyway (depending on the size of the workpiece), and finally finishing.

3. Carburizing and quenching, grinding inner holes and keyways.

20 Steel Heat Treatment Process Heat Treatment Specification: Normalizing, 910, Air Cooling. 20 Steel Heat Treatment:

As a 20 steel, it is possible to achieve an ordinary quenching hardness of 30-35HRC. It's just that due to the high temperature of the heating reputation, the quenching deformation is large. 1. After rough machining, the workpiece is heat-treated and quenched as a whole (920 quenched brine), and then finished.

Due to the hardness requirement of 30-35HRC, it should be possible to process all processes, which is nothing more than fine turning inner and outer circles, and trimming the spline keyway. 2. The same rough machining, quenching on the surface of the inner hole or only quenching the keyway with the alarm table (depending on the size of the workpiece), and finally finishing. Qingtong 3, carburizing and quenching, grinding inner holes and keyways.

Can it be carburized directly. No.

Hello dear, I'm glad to serve you, and will try to help you answer it!The heat treatment process of 20grnim0 steel 20crnimo is a low-carbon alloy steel, which is used after carburizing and quenching after quenching and tempering. The common quenching and tempering heat treatment process of 20crnimo is quenching 880, water-cooled and oil-cooled; Tempered 500, water-cooled, oil-cooled.

20CRMO belongs to the national standard alloy structural steel, the implementation standard: GB T 3077-2015, 20CRMO has high hardenability, no tempering brittleness, good weldability, the tendency to form cold cracking is very small, and the machinability and cold strain plasticity are good. It is generally used in the state of quenching and tempering or carburizing and quenching ants.

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Summary. The hardness of 60Si2Mn quenching and heat return heat treatment can reach HRC58-60, the metallographic structure after heat treatment is tempered chrytonite, the quenching temperature of 60Si2Mn is 870 20, and the oil is cooled; The tempering temperature is 200-50 (30 if special needs).

The process is as follows:

1. The 60Si2MN material is placed in a heat treatment furnace and heated at a temperature of 870.

2. Take it out after heating and holding it for 12min and quench it in oil.

3. After quenching, the sample is re-put into the heat treatment furnace and heated at a temperature of 200 °C.

4. Take out the material after heat preservation, air cooling and tempering, and pay attention to avoid the tempering brittle area of 300.

5. The 60si2mn cylindrical specimen after quenching + tempering treatment is polished under the grinder to make the surface of the specimen smooth.

6. Measure the hardness value of the 60si2mn cylindrical sample with a Rockwell hardness tester, measure it three times and take the average value, and then the hardness of the material after heat treatment can be obtained.

How to heat treat the hardness of 60Si2MN to reach HRC58-60 specific temperature and process.

The hardness of 60Si2Mn quenching and heat return heat treatment can reach HRC58-60, the metallographic structure after heat treatment is tempered chrytonite, the quenching temperature of 60Si2Mn is 870 20, and the oil is cooled; The tempering temperature is 200-50 (30 if special needs). The process is as follows: 1. The 60Si2MN material is placed in the heat treatment furnace and heated at the temperature of 870.

2. Take it out after heating and holding it for 12min and quench it in oil. 3. After quenching, the sample is re-put into the heat treatment furnace and heated at a temperature of 200 °C. 4. Take out the material after heat preservation, air cooling and tempering, and pay attention to avoid the tempering brittle area of 300.

5. The 60si2mn cylindrical specimen after quenching + tempering treatment is polished under the grinder to make the surface of the specimen smooth. 6. Measure the hardness value of the 60si2mn cylindrical sample with a Rockwell hardness tester, measure it three times and take the average value, and then the hardness of the material after heat treatment can be obtained.

The above is the first information for you to inquire about the registration, I hope to help you.

Structure and properties of 60si2mn after heat treatment (spheroidization, annealing, normalizing, quenching, tempering).

Hello, spheroidized annealing structure: spherical pearlite + ferrite, performance: hardness, strength is not high, easy to machine.

Normalized structure: fine flake pearlite + ferrite, performance: hardness and strength are slightly higher than spheroidized annealing, which is convenient for machining.

Quenching structure: martensite + residual austenite, performance: high hardness, low strength, poor plasticity.

Tempered structure: tempered dulceite, performance: high hardness, strength, especially high elastic limit, suitable for all kinds of elastic elements, such as various coil springs, leaf springs, etc.