What is the identification method between manganese steel and iron? Please think of a way. Thank you

Use the spark identification method.

Equipment required: Grinding wheel with alumina grinding wheel.

Method:1Start the grinder, grind the workpiece to be inspected and the standard sample separately, and quickly separate the sparks.

2.If there is no material sample. The workpiece is ground on the grinding wheel, the manganese steel feels hard, and the streamline is white or yellow. The bursts are numerous and neat, the miscanthus line is white and slender, and there is a lot of pollen when the carbon content is high.

Industrial pure iron has a soft feel, long spark bouquets, almost all of them are streamlined, and there is no bursting knots. Color: Wheat yellow.

The sparks of cast iron and pig iron are very short, the color is dark yellow and dark red, the sparks are small and small, and there is a lot of pollen.

For details, please refer to some manuals of heat treatment.

In short, the carbon content increases, the sparks change from dark to bright to dark, and the sparks burst from less to more, from coarse to fine. Different alloying elements have characteristic flowers in the spark.

The spark of each type of steel is different, and it will be accurate when you look at it often.

Pay attention to the material of the grinding wheel, the sparks from different grinding wheel materials are self-contained, which is different from alumina. The same grinding wheel material grinds the same spark from grinding the same material.

High manganese steel has high hardness and is often used in wear-resistant parts, such as chain rail plates of tractors, etc., and the hardness of pig iron and manganese steel cannot be compared. By knocking the two parts against each other, the hardness can be immediately separated.

If both are castings, you can tell them by the eye. The casting performance of cast iron is good, and the shape is in place. The castability of high manganese steel is poor, and there must be deficiencies in the appearance.

If it is not high-manganese steel, but the general low-alloy structural steel containing manganese, steel and iron can be separated from the surface, the processing surface of cast iron and the processing surface of steel are very different, how to finish the iron castings, and there is graphite carbon when touched by hand.

You didn't talk about analytical chemistry, if you just distinguish between these two materials, it's enough to use feelings.

Dear, I am glad to answer for you: how to distinguish between manganese steel and ordinary steel Answer: How to distinguish manganese steel and ordinary steel:

1) Look at the spray label: whether it is a manganese steel plate or a general steel plate, there is a built-in spray label in the factory; There will be a coil label in the whole bundle, and some steel coils from the steel mill also contain steel coil numbers on the side of the steel coil; (2) Listen to the sound: the shearing sound of the manganese steel plate is relatively crisp, and the shearing sound of the ordinary steel plate is not crisp.

Gao Zhenghan and manganese plate will be cut off; Grinding and polishing method: grinding and polishing with an electric grinder, there are many sparks on the surface of the plate, and the manganese steel plate with more sparks and bifurcations is more; Material book: Looking at the material certification documents, the general steelmaking mill will mark what material it is when it leaves the factory.

1. Magnetic detection.

Stainless steel is divided into austenitic stainless steel and ferritic stainless steel, in which austenitic stainless steel is non-magnetic, while ferritic stainless steel is a strong magnetic steel body, through a series of experiments to prove that austenitic stainless steel will have no obvious magnetic production under certain special conditions, but under normal circumstances it is not magnetic.

2. Hardness test.

If the austenitic stainless steel is slightly magnetic when it is cold-rolled at atmospheric pressure, then the first magnetic test just mentioned is invalid; Therefore, we need to heat the tested stainless steel to about 1000-1100 and then perform water quenching, which can remove the magnetic properties of the austenitic stainless steel and test the hardness. The hardness of austenitic stainless steels is usually below RB85.

In addition, 430, 430f, and 466 steels are less hardness than rc 24

410, 414, 416 and 431 hardness RC36 43

High carbon type 420, 420F, 440A, B, C and F steels have a hardness of Rc50 60

If the hardness is RC50 55, it may be 420 steel.

The hardness of the quenched specimens 440A and B is RC55 60

An RC value of 60 or higher is 440C steel.

Answer: High manganese steel, which is what we call manganese 13, is very green before heat treatment, and can be cracked with a sledgehammer. After heat treatment, the metal structure is released and changed, the surface is very hard, and the core has a certain plasticity. Therefore, it is generally used for wear-resistant parts, such as lining plates and hanging heads of mining machinery, cement machinery, and coal grinding machinery.

If you want to identify high manganese steel, there are two methods, first: spectroscopy, this method is very accurate to measure the manganese content.

Second: empirical method, the appearance is similar to carbon steel, the surface of high manganese steel is punched with steel, due to the high hardness of the punch mark is very small, and the carbon steel plasticity is large, so the punch mark is very deep. Then use a magnet to suck out the possibility of stainless steel, the high manganese steel magnet can be sucked, and the surface of the stainless steel is hard, but the magnet can not be absorbed.

KBN700 cutter grade CBN inserts for machining high manganese steel have good results.

High manganese steel processing can choose KBN700 grade tools, high manganese steel belongs to the typical difficult-to-process materials, in the process of turning and processing, there will often be hardening is very serious and heat generation, easy to make the tool fail and other problems, for the above high manganese steel processing problems, KBN700 material cubic boron nitride insert is a better choice, KBN700 material itself hardness is relatively high, for high manganese steel casting and molding defects and serious surface hardening, The processing efficiency of traditional tools is low, and it has a good effect.

The difference between manganese steel and regular steel is:

1. Different compositions: The main components of ordinary steel are iron and carbon, which is called iron-carbon alloy. The iron-carbon alloy containing less than 2% carbon is called steel, and the full name of carbon steel is carbon steel, which is divided into ordinary carbon steel and high-quality carbon steel according to quality; Manganese steel is smelted by adding metal manganese to carbon steel.

2. Different performance characteristics: ordinary steel materials have good comprehensive mechanical properties and stable quality; Manganese metal can effectively improve the comprehensive properties of steel, and manganese steel after heat treatment can have higher hardness and higher toughness at the same time. Commonly used manganese steels are alloy structural steel and spring steel.

3. Different applications: carbon steel general engineering structure and ordinary mechanical parts. For example, Q235 can make bolts, nuts, pins, hooks and important mechanical parts that are not too key and empty, as well as rebar and section steel in building structures; At present, manganese steel is used in large quantities to make steel mills, ball bearings, buckets of bulldozers and excavators, and other components that are often abrased, as well as railroad tracks and bridges.

In the military, high-manganese steel is used to make steel helmets, tank steel armor, warheads for armor-piercing shells, etc.

Steel is an alloy of iron with C (carbon), Si (silicon), Mn (manganese), P (phosphorus), S (sulfur) and a small amount of other elements. In addition to Fe (iron), the content of C plays a major role in the mechanical properties of steel, so it is collectively called iron-carbon alloy. It is the most important, the main and the most used metal material in engineering technology.

Manganese steel is a kind of high-strength steel, mainly used to withstand impact, extrusion, material wear and other harsh working conditions, the failure form is mainly wear and tear, partial fracture, deformation, now generally applicable to the engine under the guard plate.

Manganese steel is an alloy steel material, and this material is very hard, the structure is also very strong, and the load-bearing capacity is better than other metal materials.

Manganese steel is a kind of wear-resistant, wear-resistant steel with particularly strong hardness, which is often used in some important projects and is a new building material.

This is a metal carbide, and it is particularly resistant to high temperatures, but also very wear-resistant, not easy to deform, the metal is very good, very popular.

is a compound of iron and carbon. This kind of thing is very strong, and the melting point is also very high, and it is used in various ways.

This is a high-strength material, and the material has a strong load-bearing capacity, and the material is also more wear-resistant, and the material is also very strong.

The role of manganese in iron and steel materials: dissolves into the matrix of metal materials and plays the role of solution strengthening; Carbides are formed, which play the role of diffusion and strengthening; Improve the hardenability of steel. Increases the tempering resistance of the steel and produces secondary hardening. Avoid the second type of tempering brittleness.

This is the difference between manganese-added steel and ordinary carbon steel. In terms of performance, the machinability and wear resistance and corrosion resistance of manganese steel and some other material properties are much stronger than those of carbon steel.