Cold Drawn/ Cold Rolled Seamless Alloy Steel Tube

Alloy steel tubes are made from steel that has been combined with other elements to enhance its mechanical properties. These tubes are widely used in industries such as oil and gas, automotive, aerospace, and construction due to their superior strength, durability, and resistance to corrosion and high temperatures.

Key Features of Alloy Steel Tubes:

• High Strength: Alloy steel tubes are known for their high tensile strength, making them suitable for high-pressure applications.

• Corrosion Resistance: The addition of elements like chromium, nickel, and molybdenum improves resistance to rust and corrosion.

• Temperature Resistance: These tubes can withstand extreme temperatures, both high and low, without losing their structural integrity.

• Durability: Alloy steel tubes are highly durable and have a long service life, even in harsh environments.

• Versatility: They can be manufactured in various shapes, sizes, and thicknesses to meet specific industrial requirements.

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• Oil and Gas Industry: Used in pipelines, drilling equipment, and refineries.

• Automotive Industry: Utilized in the manufacturing of engine components, exhaust systems, and chassis.

• Aerospace Industry: Employed in the construction of aircraft frames and engines.

• Construction Industry: Used in structural frameworks and scaffolding.

• Power Generation: Applied in boilers, heat exchangers, and turbines.

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Table: Parts of Comparison of Common Alloy Steel Tubes

Manufacturing Process:

1. Melting and Alloying: Raw materials are melted in a furnace, and alloying elements are added to achieve the desired composition.

2. Forming(Cold drawn or Cold Rolled): The billets are heated and formed into tubes through processes like extrusion or rolling.

3. Heat Treatment: The tubes undergo heat treatment to enhance their mechanical properties.

4. Finishing: The tubes are cut, polished, and inspected for quality assurance.

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Standards and Specifications:

• ASTM A213: Standard specification for seamless ferritic and austenitic alloy-steel boiler, superheater, and heat-exchanger tubes.

• ASTM A335: Standard specification for seamless ferritic alloy-steel pipe for high-temperature service.

• ASME SA213: Similar to ASTM A213 but with additional requirements for use in ASME Boiler and Pressure Vessel Code applications.

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Advantages:

• Enhanced Mechanical Properties: Superior strength and toughness compared to carbon steel.

• Improved Performance: Better performance in extreme conditions, such as high pressure and temperature.

• Longevity: Longer service life due to resistance to wear and tear.

Tags: Alloy Seamless Steel Tube, Alloy steel tube

Zhejiang New Era Steel Tube Technology Co., Ltd is one of the best seamless steel tube products manufacturer and exporter in china. Our main products include cold drawn and cold rolled seamless steel tubes .We can manufacture non-standard and special application tubes, also according to the international standards as well. Ningbo Pipeway Trade Co.,Ltd is our branch company for all internation business service for our company.

Our Production equipments including 16 cold drawing lines and 22 cold rolled machines:

We have full testing equipments for different kinds of testing for steel tubes:

Our products can produced as DIN,ASTM,ASME,EN,JIS,BS,GB,GOST,ISO etc international standard 

Precision steel tubes:DIN2391 st52/A519 4130 4140 1026/EN10305-1 E355+N/EN10305-4 E235+N

Boiler steel tubes:ASTM A192/A179/A210 Gr.A/A213;DIN17175 st35.8/EN10216

Seamless Mechanical tubes: ASTM A519, EN10297-1/EN10210 S355J2H

Wire line Drill Rods:BQ,NQ,HQ,PQ XJY750,XJY850 4130+SR 1541

Oil and Gas line pipes:API 5L Grade B,A106 Gr.B,A53 Gr.B,API 5D

Stainless Steel tubes 304,304L,316,316L

Steel pipes and tube Size range:OD 4-300mm,Wt:0.5-30mm

We have 15 years experience of exporting steel tubes and steel pipes , main exporting to American, Europe, Asian, Australia, Africa .

We have cerficate of ISO9001,TS16949,TUV/PED for different market demand: