What is the hardness of DT4 electrical pure iron

DT4 electrical pure iron hardness, coercivity.

Introduction to magnetic flux and other properties.

The hardness of DT4E is relatively low, usually between HV1 85 and 125.

Note: Hardness is the average of the three-point test.

Coercivity: Coercivity

From the stable saturation magnetization state of the specimen, the magnetic field is monotonically changed along the saturation hysteresis loop, so that the magnetic polarization intensity decreases to zero along the saturation hysteresis loop.

It is called coercivity, expressed in Hc, and is measured in ampere per meter (A m).

The largest permeability.

maximum permeability

Under DC magnetization, the magnetic induction intensity of the specimen is stable on the basic magnetization curve.

The ratio to the strength of the corresponding magnetic field is called permeability and is denoted by . The greatest value of its ratio is called the greatest permeability and is denoted by max. The unit is heng per meter (h m).

Note: 1. DT4E is a special-purpose steel, the density is slightly higher than that of ordinary carbon steel, and the material is relatively soft, and it is easy to have pits and contusions if it is not properly transported.

2. DT4E is a grade in the electromagnetic pure iron series, as well as DT4, DT4A, DT4C. The product form is not only plate.

There are also round rods, etc., if you are interested, you can check in the brand number.

3. DT is actually "electromagnetic pure iron" - referred to as "electric railway" - pinyin abbreviation "DT".

(aka: electromagnetic pure iron, electrical pure iron, industrial pure iron, Yaoqiang pure iron) (1-1) Specification form: pure iron round steel, pure iron rod, pure iron coil, pure iron belt, pure iron wire rod, pure iron wire, Yaoqiang pure iron, pure iron cold drawing, pure iron plate, pure iron sheet, pure iron slitting, pure iron seamless pipe, pure iron forging.

1-2) Steel grade: DT3, DT4, DT4A, DT4E, DT4C (1-3) Electromagnetic pure iron grade description:

1-4) Uses: cells, armature yokes, and pure iron of various types of relays in electrical appliances and telecommunications; the core material of the electromagnet; Instruments, meter magnetic conductive components; the core and housing of the DC motor; electrical or magnetic parts for automobiles, tractors and lathes; Brakes, clutches. Magnetic shelter equipment, such as all kinds of magnetic shelter covers or shelter boxes, require high shelter equipment.

sealing materials, etc.

The above questions are answered by Taiyuan Yaoqiang Pure Iron for you!

DT4E pure iron, pure iron is a ferroalloy with a carbon content of less, also known as wrought iron (the carbon content is called steel, and the carbon content is called pig iron).

DT4C electrical pure iron has high purity, low coercivity, high magnetic flux, and is a cost-effective choice for soft magnetic materials, called electromagnetic pure iron (aka: electrical pure iron, industrial pure iron).

Question: What is electrical pure iron?

Soft magnetic materials refer to magnetic materials with low coercivity and high permeability. Soft magnetic materials are easy to magnetize and also easy to demagnetize, and are widely used in electrical equipment and electronic equipment. A typical soft magnetic material can achieve a large magnetization with a small external magnetic field.

The most widely used soft magnetic materials are iron-silicon alloys (silicon steel sheets) and various soft ferrites.

Question: What is the use of electrician pure iron?

Electromagnetic pure iron has high magnetic inductance and low diamagnetism. It is widely used in electronic and electrician, electrical components, magnetic materials, amorphous products, relays, sensors, automobile brakes, textile machinery, electric meters, solenoid valves and other products. Its melting point is higher than that of iron, it is more difficult to rust than iron in humid air, and it can be passivated in cold concentrated sulfuric acid.

Question: What is the chemical composition of electromagnet pure iron?

In terms of electromagnetic properties alone, the higher the purity, the better the electromagnetic properties. However, the process of producing high-purity iron is complex and costly. The solution of electromagnetic pure iron is to add aluminum-silicon in smelting to weaken the adverse effects of other impurities on magnetic properties.

The reference values of the chemical composition of electromagnetic pure iron are shown in the table below.

The above questions are provided by Taiyuan Yaoqiang Pure Iron, I hope it will help you!

<> electrical pure iron is a multi-purpose material with low carbon content and low impurity weight, and has good magnetic properties. Pure iron is a kind of metal material with low carbon content, less various elements and lower inclusions in steel.

Pure iron is the earliest soft magnetic material used in industry. In 1886, the West Inshouse Electric Company of the United States first used hot-rolled mild steel sheets with impurity content of about 0 4 to make transformer laminated cores. In 1890, 0 35mm thick hot-rolled low-carbon steel sheet was widely used to make motor and transformer cores, thus creating the history of industrial soft magnetic materials, and becoming the main soft magnetic materials used in the late 19th and early 20th centuries.

Pure iron is characterized by low coercivity, high permeability and high magnetic inductance, and has good processing properties. Its disadvantage is that the resistivity is low, that is, the eddy current loss is high under the AC magnetic field, and it is generally only used as a magnetic conductor under a constant magnetic field.

Pure iron has been actively developed and applied in China. Taiyuan Iron & Steel (Group) **** is the earliest enterprise in China to develop and produce pure iron. TISCO began to develop industrial pure iron in 1955, creating a precedent for industrial pure iron in China, and with strong technical force and continuous technology forward, it has designed its own composition and successfully developed aluminum static and timeless pure iron, forming a unique product in China.

TISCO has also developed a vacuum smelting process and an electroslag remelting process, successfully trial-produced low-carbon industrial pure iron (C 0 002) and hairline-free pure iron, and successfully trial-produced electrolytic pure iron powder and pure iron plate (purity up to 99 9*, which can be used for chemical analysis of pure iron standard samples), thus forming China's own pure iron series products and realizing the serialization of grades. After more than 40 years of development, TISCO has gradually formed the current development trend of complete varieties and specifications, and has become the main base of pure iron production in China. At present, the national pure iron standard was drafted by TISCO.

In electrical appliances and telecommunications, we make cells and armature yokes for various types of relays. 2. It is used for bending and focusing magnets, electroacoustics, solenoid valves, electromagnetic cores of magnetic separation equipment, etc. 3. It is used for high-resolution magnet capsule on analytical instruments, electromagnetic sorter and geophone in geological instruments.

Wrought iron is a product obtained by the direct reduction of iron ore with carbon, or by the melting of pig iron and the oxidation of impurities; Although the smelting temperature of the former is lower and the temperature of the latter is higher, the pig iron thickens due to the increase of the melting point after decarburization. Both are not easy to completely separate the slag from the iron, so wrought iron often contains a small amount of slag, which shows fibrous tissue after processing.

China has used pig iron in the Spring and Autumn Period and the Warring States Period, and the development time of wrought iron should be earlier.

Electromagnetic pure iron is divided into general, high, special, and super according to the magnetic performance level - for example, DT4, DT4A, DT4E, and DT4C are general, high, special, and super respectively.

First, coercivity is different.

1. DT4: DT4 coercivity 96.

2. DT4C: DT4C coercivity 32

Second, the timeliness value-added is different.

1. DT4: DT4 aging value-added.

2. DT4C: DT4C aging value-added 4.

3. The maximum permeability is different.

1. DT4: DT4 maximum permeability.

2. DT4C: DT4C maximum permeability.

The difference between coercivity. DT4C coercivity is below 32 and DT4 is below 96

The electrician's grade is marked by the pinyin prefix "dt" of "electric railway".", sequence number and magnetic grade symbol (A is high, E is special, C is super). Yaoqiang Pure Iron uses a picture to let you understand the secret of DT4 grade.

Liaocheng Dedao metal production industrial pure iron pipe has less carbon content, so the strengthening effect is not good, not suitable for structural engineering steel or tool steel, the carbon content is called steel, and the content greater than this is called cast iron.

DT4 has good performance. However, DT4 has been upgraded to DT4C DT4E It is recommended to use DT4C

Electrical pure iron is a special-purpose steel, the density is slightly higher than that of ordinary carbon steel, the material is also relatively soft, and improper transportation is prone to pits and contusions. The density is usually. Yaoqiang Pure Iron is happy to answer for you, I hope it will be helpful to you.

The density of pure iron dt4c is gram cm3).

DT4 is electromagnetic pure iron for general purpose, and the main index is coercivity DT8 is pure iron without hairlines, which requires good vacuum performance and dense structure of pure iron materials, and has certain magnetic properties.

The electroslag reconstitution production process must be adopted, and the main characteristics are as follows:

1) The internal purity of the steel is high, the low-power structure is dense, uniform, excellent, the inclusions are very low, and the gas content is very small, so as to ensure that the tower-shaped sample is qualified.

2) The electromagnetic performance is excellent, stable, uniform and non-magnetic.

3) Good thermal processing performance, no red brittle area, can ensure the use of various hot processing purposes.

The hairlines observed under the microscope are the oxide inclusions produced by deoxidation during steelmaking, which are forged and distributed in intermittent chains.

The following is a brief explanation of the difference between the two by TISCO Yaoqiang Pure Iron:

DT8 belongs to military pure iron (also called pure iron without hairlines), which is mainly used to seal magnetic conductive materials in high-vacuum ultra-high frequency tubes, such as cesium bundle tube magnetic pole shoes. Electron tube pure iron parts material, pure iron material vacuum performance is good, dense structure, and has a certain magnetic properties, such as the pure iron material in the magnetron.

DT4 belongs to electromagnetic pure iron, which is mainly used for cells, armature yokes and yokes of various types of relays in civil appliances and telecommunications; the core material of the electromagnet; Instruments, meter magnetic conductive components; the core and housing of the DC motor; electrical or magnetic parts for automobiles, tractors and lathes; Magnetic shelter equipment, such as all kinds of magnetic shelter covers or shelter boxes, require high shelter equipment.