SS 904L Seamless Stainless Steel Pipe in Wuxi ,China

SS 904L Seamless Stainless Steel Pipe in Wuxi ,China

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 5 m.t.

Supply Capability:: 25000 m.t./month

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Specification

Standard:

AISI

Technique:

Saw

Shape:

Square

Surface Treatment:

Oiled

Steel Grade:

RHB335,300 Series

Certification:

SGS

Thickness:

Length:

10000

Outer Diameter:

Net Weight:

316 stainless steel pipe

Product Description

Name	Stainless Steel Seamless & Welded Tube &Pipe
Items	Square tubes, round tubes, oval pipes, special shaped pipes, empaistic pipes, fittings
Standard	ASTM A554, A249, A269 and A270
Material Grade	201: Ni 0.8%~1%
	202: Ni 3.5%~4.5%
	304: Ni 8%, Cr 18%
	316: Ni 10%, Cr 18%
	316L: Ni10%~14%
	430: Cr16%~18%
Outer Diameter	9.53mm--159mm
Thickness	0.3mm - 3.0mm
Length	6m or as customers' request
Tolerance	a) Outer Diameter: +/- 0.2mm
	b) Thickness: +/- 0.02mm
	c) Length: +/- 5mm
Surface	180G, 240G, 320G Satin / Hairline 400G, 600G Mirror finish
Application	handrail,railing, staircase, weldmesh screen,door,window, balcony,fence,bench,furniture,etc
Test	Squash test, extended test, water pressure test, crystal rot test, heat treatment, NDT
Chemical Composition of Material	Material Composition	201	202	304	316L	430
	C	≤0.15	≤0.15	≤0.08	≤0.035	≤0.12
	Si	≤1.00	≤1.00	≤1.00	≤1.00	≤1.00
	Mn	5.5-7.5	7.5-10	≤2.00	≤2.00	≤1.00
	P	≤0.06	≤0.06	≤0.045	≤0.045	≤0.040
	S	≤0.03	≤0.03	≤0.030	≤0.030	≤0.030
	Cr	13-15	14-17	18-20	16-18	16-18
	Ni	0.7-1.1	3.5-4.5	8-10.5	10-14
	Mo				2.0-3.0
Mechanical Property	Material Item		201	202	304	316
	Tensile Strength		≥535	≥520	≥520	≥520
	Yield Strength		≥245	≥205	≥205	≥205
	Extension		≥30%	≥30%	≥35%	≥35%
	Hardness (HV)		<105< span="">	<100< span="">	<90< span="">	<90< span="">

Our Work shop

Our products:

High Pressure SS 904L Seamless Stainless Steel Pipe

Definition of stainless steel(Adopted form Wikipedia)

In metallurgy, stainless steel, also known as inox steel or inox from French "inoxydable",

is defined as a steelalloy with a minimum of 10.5% to 11% chromium content by mass.

Stainless steel does not readily corrode, rust or stain with water as ordinary steel does,

but despite the name it is not fully stain-proof, most notably under low oxygen, high salinity,

or poor circulation environments. It is also called corrosion-resistant steel or CRES

when the alloy type and grade are not detailed, particularly in the aviation industry.

There are different grades and surface finishes of stainless steel to suit the environment

the alloy must endure. Stainless steel is used where both the properties of steel

and resistance to corrosion are required.

Q: Can stainless steel pipes be chromed?: Indeed, it is possible to chrome stainless steel pipes. To achieve this, a layer of chromium is applied onto the surface of the stainless steel pipe through a process called chrome plating. Typically, this involves immersing the stainless steel pipe in a solution containing chromium salts, while an electric current is passed through the bath. As a result, the chromium adheres to the surface of the stainless steel pipe. This chrome plating not only enhances the appearance of the stainless steel pipe but also provides a protective finish, increasing its resistance to corrosion and wear.

Q: What is the difference between 17-4 and 15-5 stainless steel pipes?: The main difference between 17-4 and 15-5 stainless steel pipes lies in their composition and properties. 17-4 stainless steel is a precipitation-hardening alloy that contains around 17% chromium and 4% nickel. It also includes significant amounts of copper, niobium, and tantalum, which contribute to its high strength and corrosion resistance. 17-4 stainless steel pipes are known for their excellent mechanical properties, making them ideal for applications that require high strength and toughness. They are commonly used in industries such as aerospace, defense, and oil and gas. On the other hand, 15-5 stainless steel is also a precipitation-hardening alloy, but it contains around 15% chromium and 5% nickel. It has a higher copper content compared to 17-4 stainless steel. The addition of copper in 15-5 stainless steel enhances its resistance to corrosion and improves its toughness. These pipes are often used in applications where a combination of strength, corrosion resistance, and good formability is required. They find applications in industries such as marine, chemical processing, and food processing. In summary, while both 17-4 and 15-5 stainless steel pipes are precipitation-hardening alloys, the difference lies in their chromium, nickel, and copper content. 17-4 stainless steel offers higher strength and toughness, making it suitable for demanding applications. 15-5 stainless steel, with its increased copper content, provides enhanced corrosion resistance and formability, making it a preferred choice for certain industries.

Q: What are the different types of stainless steel pipe tees?: There are several different types of stainless steel pipe tees, each designed for specific applications and requirements. 1. Equal Tee: This type of tee has three outlets of the same size, forming a 90-degree angle. It is commonly used to branch off or combine flow in a pipeline with equal diameters. 2. Reducing Tee: As the name suggests, a reducing tee has one outlet smaller than the other two. It is used to connect pipes of different sizes, allowing for a smooth transition in the flow of fluids or gases. 3. Barred Tee: This tee has a bar welded across the branch opening, providing additional support and reinforcement. It is commonly used in high-pressure or high-temperature applications to prevent stress concentration and potential failure. 4. Lateral Tee: A lateral tee has one outlet at a 45-degree angle, allowing for a branch connection at a different direction. It is often used in situations where a pipeline needs to be diverted or connected at an angle. 5. Cross Tee: A cross tee has four outlets forming a cross-shaped configuration. It is used when there is a need to split or combine flow in multiple directions, commonly found in complex piping systems. 6. Unions and Socket Weld Tee: These types of tees have sockets or unions at the branch connection, allowing for easy disassembly and maintenance. They are often used in applications where regular inspection, cleaning, or replacement is required. 7. Threaded Tee: Threaded tees have threaded branch connections, which can be screwed onto the pipe without the need for welding. They are commonly used in low-pressure applications or when frequent disassembly is required. Each type of stainless steel pipe tee offers specific advantages and is selected based on the requirements of the particular piping system, such as flow rates, pressure, temperature, and compatibility with the fluids or gases being transported.

Q: Are stainless steel pipes suitable for cryogenic applications?: Yes, stainless steel pipes are suitable for cryogenic applications. Stainless steel has excellent mechanical properties, including high strength and good corrosion resistance, which make it ideal for handling extremely low temperatures. Additionally, stainless steel has low thermal conductivity, which helps to minimize heat transfer and maintain the desired cryogenic temperatures.

Q: How do you prevent galling in stainless steel pipes?: One way to prevent galling in stainless steel pipes is by applying an anti-seize compound or lubricant to the threaded connections. This helps to reduce friction and prevents the surfaces from seizing together. Additionally, ensuring proper thread engagement and avoiding excessive tightening can also help prevent galling.

Q: What are stainless steel pipes used for?: Stainless steel pipes are widely used in various industries for their exceptional durability, corrosion resistance, and high strength. They find extensive applications in plumbing systems, oil and gas industries, chemical processing plants, food and beverage processing, pharmaceutical industries, and automotive manufacturing, among others. In plumbing systems, stainless steel pipes are favored for their ability to withstand high pressure and temperature, making them suitable for transporting water, gas, and other fluids. They are also commonly used in sewage and drainage systems due to their resistance to corrosion and chemical substances. In the oil and gas industries, stainless steel pipes are used for transporting petroleum products, natural gas, and other fluids under high pressure and extreme temperatures. Their corrosion resistance properties make them indispensable in offshore and onshore drilling operations, refineries, and petrochemical plants, ensuring the safe and efficient transportation of these substances. Chemical processing plants rely on stainless steel pipes for their resistance to chemical reactions and high temperatures. They are used to transport various corrosive chemicals and gases without the risk of contamination or leakage. Additionally, stainless steel pipes are utilized in heat exchangers, reactors, and other equipment that require corrosion-resistant materials. The food and beverage industry also heavily relies on stainless steel pipes due to their hygiene and sanitary properties. They are used for conveying various food products, such as milk, wine, beer, and other liquids, without altering their taste or quality. Stainless steel pipes are easy to clean, maintain, and sterilize, making them ideal for this industry. In the pharmaceutical sector, stainless steel pipes play a crucial role in conveying various drugs, chemicals, and sterile fluids. They meet the stringent requirements of the industry by ensuring product purity, preventing contamination, and offering resistance to corrosion and temperature extremes. Moreover, stainless steel pipes are utilized in automotive manufacturing for their structural strength and resistance to heat and corrosion. They are used in exhaust systems, fuel lines, and other components where durability and resistance to extreme conditions are necessary. Overall, stainless steel pipes are versatile and essential in numerous industries, providing the perfect combination of strength, durability, and corrosion resistance needed for a wide range of applications.

Q: Under what circumstances can the stainless steel pipe be welded by argon arc, and under what conditions can the arc welding be used?: Arc welding is the most widely used welding method in industrial production, it is to use the principle of arc discharge (commonly known as arc combustion) the heat generated by the electrode and the work piece and the formation of weld in melting each other after condensation, so as to obtain the solid joint welding process. The scope of application of electric arc welding is very extensive, such as bucket teeth of excavator, loader, bulldozer blade blade plate, screw conveyor, crusher, mixer blade, rail, forging, gear wheel flange, all kinds of mold, slag crusher, ball mill, machine tool equipment etc..

Q: How do stainless steel pipes compare to concrete pipes?: Stainless steel pipes offer several advantages over concrete pipes. Firstly, stainless steel pipes have a higher strength-to-weight ratio, making them lighter and easier to handle during installation. They are also more resistant to corrosion and have a longer lifespan than concrete pipes. Additionally, stainless steel pipes have smoother inner surfaces, enabling better flow rates and reducing the likelihood of blockages. Lastly, stainless steel pipes are more flexible and can withstand temperature variations, making them suitable for a wider range of applications compared to concrete pipes.

Q: What is the difference between seamless and hot-finished stainless steel pipes?: Seamless stainless steel pipes are manufactured without any welding seams, resulting in a smooth and uniform appearance. They are made by piercing a solid billet of stainless steel and then extruding it into a hollow tube shape. On the other hand, hot-finished stainless steel pipes are made by heating a solid billet and then rolling it into a tube shape while hot. This process may result in visible welding seams, but the pipes are still durable and suitable for various applications.

Q: What is the average lifespan of stainless steel pipes?: The average lifespan of stainless steel pipes can vary depending on various factors such as the quality of the materials used, the environment in which they are installed, and the maintenance practices followed. However, on average, stainless steel pipes can last anywhere from 50 to 100 years or more with proper care and maintenance.

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