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Alloy pipe seamless steel pipe for high pressure heat resistant alloy pipe and low pressure alloy pipe structure

Short Description:

Alloy pipes are divided into structural seamless pipes and high-pressure heat-resistant alloy pipes. It is mainly different from the production standard and industry of alloy pipe. Annealing and tempering of alloy pipe changes its mechanical properties. Meet the required processing conditions. Its performance is higher than that of ordinary seamless steel pipe, its utilization value is higher, the chemical composition of alloy pipe contains more Cr, and its performance of high temperature resistance, low temperature resistance and corrosion resistance. The common carbon seamless pipe does not contain alloy components or has few alloy components. The reason why alloy pipes are widely used in petroleum, aerospace, chemical industry, electric power, boiler, military industry and other industries is that the mechanical properties of alloy pipes change and are easy to adjust.

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Product Description

Alloy pipes have hollow sections and are widely used as pipelines for transporting fluids, such as pipelines for transporting oil, natural gas, gas, water, machining, and some solid materials. Compared with solid steel such as round steel, alloy steel pipe has lighter weight when its bending and torsional strength is the same. Alloy steel pipe is an economic section steel, which is widely used to manufacture structural parts and mechanical parts, such as oil drill pipe, automobile transmission shaft, bicycle frame and steel scaffold used in construction. Making ring parts with alloy steel pipe can improve the material utilization rate, simplify the manufacturing process, save materials and processing hours, such as rolling bearing ring, jack sleeve, etc. at present, steel pipe has been widely used for manufacturing. Alloy steel pipe is also an indispensable material for all kinds of conventional weapons. Gun barrel and barrel should be made of steel pipe. Alloy steel pipe can be divided into round pipe and special-shaped pipe according to different cross-sectional area and shape. Because the circular area is the largest under the condition of equal circumference, more fluid can be transported by circular pipe. In addition, when the ring section is subjected to internal or external radial pressure, the force is more uniform. Therefore, most steel pipes are round pipes. Alloy pipes include large-diameter alloy pipes, thick wall alloy pipes, high-pressure alloy pipes, alloy flanges, alloy elbows, P91 alloy pipes and seamless steel pipes. In addition, special pipes for chemical fertilizer are also very common.

Product Parameter

Standerd GB/T8162 ASTM A53 ASME SA53 JIS DIN
Steel pipe grade 16Mn 12Cr1MoV T91 27SiMn 30CrMo 15CrMo 20G Cr9Mo 10CrMo910 15Mo3 15CrMoV 35CrMoV 45CrMo

15CrMoG12Cr2MoG12Cr1MoVG12Cr2MoWVTiB10Cr9Mo1VNbSA210A1SA210CSA213 T11SA213 T12SA213 T22SA213 T23SA213 T91SA213 T92ST45.8/13CrMo44

Lengh hot rolled (extruded and expanded): 3-12m

cold rolled (drawn): 2-10.5m

Outer Diameter hot rolled:32-756mm/cold drawn:5-200mm
wall thickness 2.5-100mm
Processing Service Cutting or according to the customer's demand
Packaging Details Bare packing/wooden case /waterproof cloth
Terms of Payment T/T L/C
20 feet container contains dimension Length under 6000mm/25T
40 feet container contains dimension Length under 12000mm/27T


Samples Free samples are provided but the freight is paid by the buyer
Min order 1Ton

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Product Application

Alloy tubes are mainly used for heating surface tubes of low and medium pressure boilers (working pressure is generally not greater than 5.88MPA and working temperature is below 450 ℃); It is used for heating surface pipes, economizers, superheaters, reheaters and pipes for petrochemical industry of high-pressure boilers (working pressure is generally above 9.8MPa and working temperature is between 450 ℃ ~ 650 ℃). Therefore, alloy tubes are widely used in petroleum, aerospace, chemical industry, electric power, boiler, military industry and other industries.

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