AISI 4145H Seamless Alloy Steel Tube

Specifications of 4145H Seamless Alloy Steel Tube

AISI 4145H seamless alloy steel tube has become one of the indispensable high performance steel pipe materials in the industrial field due to its excellent performance and wide application fields.

Specifications	ASTM A 519
Grade	4145,4145H
Process	Seamless
Size Range	Cold Drawn: 6-426mm OD; 1-40mm WTHot Finished: 32-1200mm OD; 3.5-200mm WT
Thickness	Up to 200mm
Coating	Black / Galvanized / 3LPE / Turned / Peeled / Grinded / Polished / Anti – Corrosion Oil
Heat Treatment	Spheroidizing / Full Annealing / Process Annealing / Isothermal Annealing / Normalizing / Quenching / Martempering (Marquenching) / Quench And Tempering / Austempering
End	Beveled End, Plain End, Treaded
Mill Test Certificate	EN 10204 3.1 or EN 10204 3.2

Chemical Composition:

Grade	C	Si	Mn	S	P	Cr
4145H	0.43-0.48	0.15-0.35	0.75-1.0	0.040	0.035	0.08-1.10

Mechanical Properties:

Grade	Tensile Strength (MPa) min	Hardness	Yield Strength 0.2% Proof (MPa) min
4145	1100-1250	285-341 HB	850-1050

Product Features And Advantages Of Seamless Alloy Steel Tube

1. Product features

High strength: The tensile strength and yield strength of this alloy steel pipe are higher than that of ordinary steel pipe, and it can withstand greater mechanical stress and pressure.

Good hardenability: It has excellent hardenability. This means that it is able to reach the desired level of hardness and strength evenly and quickly during heat treatment.

Excellent wear resistance: Due to the high hardness of AISI 4145H seamless alloy steel pipe, it has excellent wear resistance and is suitable for high load and high speed operation.

Good toughness: despite its high hardness, the steel pipe still maintains good toughness and can withstand large impact loads without breaking easily.

Good corrosion resistance: it can still maintain good corrosion resistance in harsh environment, prolong the service life.

2. Product advantages

High performance: high strength, good hardenability, excellent wear resistance and toughness, etc., make it the representative of high performance steel pipe.

High reliability: The steel pipe through strict manufacturing process and quality control, to ensure the reliability and stability of the product.

Strong applicability: AISI 4145H seamless alloy steel tube is suitable for a variety of applications under high load, high speed operation and harsh environment, with strong versatility and adaptability.

Application Field Of 4145H Seamless Alloy Steel Tube

1. Oil and gas industry

AISI 4145H seamless alloy steel tube can manufacture drilling equipment. Especially those parts that need to withstand high loads and high stresses. For example, equipment such as drill pipe, drill bit, and shut-off. This is due to its excellent strength and wear resistance, which can maintain excellent performance and stability under harsh working conditions.

2. Mechanical engineering

In mechanical engineering, it also plays an important role. Due to its high strength and wear resistance, the material can be used to manufacture parts and components with high load and high strength requirements. These components need to withstand high mechanical stress and wear, and the AISI 4145H tube is able to meet these requirements, thus extending the service life of the equipment and improving the working efficiency.

3. High temperature and high pressure environment

In petrochemical and other industries, many equipment and pressure vessels need to work under high temperature and high pressure conditions. The ability of 4145H seamless steel pipes to maintain their strength and toughness in such extreme environments makes them an ideal material choice for these devices and pressure vessels.

4. Other areas

In addition to the above fields, it is also widely used in aerospace, mining and other industries that require high strength and wear resistance. In aerospace, the material can be used to make parts for planes and rockets. In the mining industry, it is often used to manufacture mining equipment and tools.