Do you know the term of raw material of these pipe fittings?

- Jun 11, 2019-

1. Alloy steel raw material for engineering structure

This refers to the alloy steel flanges used in engineering and building structures, including weldable high-strength alloy structural steel, alloy reinforced steel, alloy steel for railway, alloy steel for geological and petroleum drilling, alloy steel for pressure vessels, high-manganese wear-resistant steel and so on.This type of steel is used for engineering and building structures. In alloy steel, the total content of this type of steel alloy is low, but the production and usage are large.

2. Alloy steel for mechanical structure

This type of steel refers to alloy steel flanges suitable for manufacturing machines and mechanical parts.It is on the basis of high quality carbon steel, appropriately add one or several kinds of alloy elements, used to improve the steel strength, toughness and hardenability.This kind of steel is usually used after heat treatment.It mainly includes two kinds of alloy structural steel and alloy spring steel, including alloy steel with quenching and tempering treatment, alloy steel with surface hardening treatment and alloy steel with cold plastic forming.According to the basic chemical composition system, it can be divided into Mn series steel, SiMn series steel, Cr series steel, CrMo series steel, CrNiMo series steel, Ni series steel, B series steel and so on.

3. Ordinary low-alloy steel raw materials

Ordinary low-alloy steel is a kind of ordinary alloy steel containing a small amount of alloying elements (the total amount of W in most cases does not exceed 3).The strength of steel is higher, comprehensive performance is better, and corrosion resistance, abrasion resistance, good low temperature resistance, good cutting performance and welding performance under the condition of a large number of saving scarce alloying elements, usually one ton of ordinary low alloy steel can be used top 1.2 1.3 tons of carbon steel, its life and using range is far more than carbon steel.Ordinary low alloy steel can be smelted in open hearth and converter by common smelting method, and the cost is similar to carbon steel.

4. Alloy steel for mechanical structure

This type of steel refers to alloy steel suitable for manufacturing machines and mechanical parts.It is on the basis of high quality carbon steel, appropriately add one or several kinds of alloy elements, used to improve the steel strength, toughness and hardenability.This kind of steel is usually used after heat treatment.It mainly includes two kinds of alloy structural steel and alloy spring steel, including alloy steel with quenching and tempering treatment, alloy steel with surface hardening treatment and alloy steel with cold plastic forming.According to the basic chemical composition system, it can be divided into Mn series steel, SiMn series steel, Cr series steel, CrMo series steel, CrNiMo series steel, Ni series steel, B series steel and so on.

5. precision alloy raw materials

Precision alloys refer to alloys with special physical properties.It is an indispensable material in electrical industry, electronic industry, precision instrument industry and automatic control system

Precision alloys are divided into seven categories according to their different physical properties, namely: soft magnetic alloy, deformation permanent magnetic alloy, elastic alloy, expansion alloy, thermal bimetal, resistance alloy, thermocouple alloy.Most precision alloys are based on ferrous metals, only a few are based on nonferrous metals

6. Superalloy raw materials

Superalloy is a thermal strength material with sufficient endurance strength, creep strength, thermal fatigue strength, high-temperature toughness and sufficient chemical stability at high temperature. It is used for 1000º.C about the thermal power components working under high temperature conditions

According to their basic chemical composition, it can be divided into nickel-based superalloys, ferro nickel-based superalloys and cobalt based superalloys

7. heat resistant steel raw materials

Under the condition of high temperature, the steel with oxidation resistance and enough high temperature strength and good heat resisting property is called heat resisting steel.Heat - resistant steel includes oxidation - resistant steel and hot - strength steel.Anti - oxidation steel is also known as no skin steel.Hot strength steel refers to steel with good oxidation resistance and high high temperature strength at high temperature.Heat resistant steel is mainly used for long - term use at high temperature parts

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