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 insulated with polyvinyl chloride?: No, stainless steel pipes cannot be insulated with polyvinyl chloride.

Q:What is the difference between ferritic and austenitic stainless steel pipes?: Ferritic and austenitic stainless steel pipes differ primarily in their microstructure and composition, resulting in distinct properties and applications. Ferritic stainless steel pipes are characterized by a ferrite microstructure, which is a body-centered cubic crystal structure. They contain high levels of chromium (typically around 10-30%) and low levels of carbon. Due to their low carbon content, ferritic stainless steel pipes have excellent corrosion resistance but are prone to sensitization and intergranular corrosion at high temperatures. They also possess good durability, heat resistance, and magnetic properties, making them suitable for applications such as automotive exhaust systems, architectural structures, and heat exchangers. On the other hand, austenitic stainless steel pipes have an austenite microstructure, which is a face-centered cubic crystal structure. They contain high levels of chromium (typically around 16-26%) and nickel (usually 6-22%), along with low carbon content. Austenitic stainless steel pipes exhibit superior corrosion resistance, even in highly aggressive environments. Their non-magnetic nature, excellent ductility, and high toughness make them ideal for various industries, including chemical processing, food and beverage, pharmaceuticals, and medical equipment manufacturing. Austenitic stainless steel pipes are also less prone to sensitization and intergranular corrosion compared to ferritic stainless steel pipes. In summary, ferritic stainless steel pipes have a ferrite microstructure, good corrosion resistance, and magnetic properties, while austenitic stainless steel pipes have an austenite microstructure, superior corrosion resistance, non-magnetic properties, and enhanced mechanical properties. The choice between ferritic and austenitic stainless steel pipes depends on the specific application, desired properties, and environmental conditions.

Q:Can stainless steel pipes be heat treated?: Yes, stainless steel pipes can be heat treated. Heat treatment processes such as annealing, solution annealing, and stress relieving can be applied to stainless steel pipes to improve their mechanical properties, such as strength, hardness, and corrosion resistance.

Q:Can stainless steel pipes be used for power generation applications?: Yes, stainless steel pipes can be used for power generation applications. Stainless steel is a popular choice for pipes in power generation due to its high corrosion resistance, durability, and strength. It can withstand high temperatures and pressures, making it suitable for various power generation processes such as thermal power plants, nuclear power plants, and hydroelectric power plants. Stainless steel pipes are commonly used in power generation applications for several reasons. Firstly, stainless steel has excellent resistance to corrosion, both from high-temperature steam and chemicals commonly used in power generation processes. This resistance ensures that the pipes remain intact and reliable over a long period of time, reducing maintenance and replacement costs. Secondly, stainless steel pipes are known for their durability and strength. They can withstand the high pressures and temperatures generated during power generation without deforming or breaking. This is crucial for ensuring the safety and efficiency of power generation systems. Furthermore, stainless steel is also highly resistant to scaling and fouling, which can occur in power generation applications due to the presence of impurities in water or steam. The smooth surface of stainless steel pipes helps minimize the buildup of deposits, ensuring efficient heat transfer and preventing clogging or blockage. Lastly, stainless steel pipes are compatible with a wide range of power generation fuels, including coal, natural gas, oil, and renewable energy sources. They can handle the corrosive effects of these fuels and maintain their structural integrity. In summary, stainless steel pipes are well-suited for power generation applications due to their corrosion resistance, durability, strength, and compatibility with various fuels. They offer a reliable and long-lasting solution for transporting fluids and gases in power generation systems.

Q:What is the difference between double wall and single wall stainless steel pipes?: The main difference between double wall and single wall stainless steel pipes lies in their construction and applications. Single wall stainless steel pipes are made up of one layer of stainless steel. They are commonly used in various industrial applications such as plumbing, heating, ventilation, and air conditioning systems. These pipes are known for their durability, corrosion resistance, and high tensile strength. Single wall stainless steel pipes are suitable for transporting fluids and gases at moderate temperatures and pressures. On the other hand, double wall stainless steel pipes consist of an inner and outer layer of stainless steel, with a layer of insulation in between. The insulation layer provides thermal insulation, preventing heat transfer and maintaining the temperature of the fluid or gas inside the pipe. Double wall stainless steel pipes are typically used in applications where temperature control is critical, such as in high-temperature industrial processes or in the transport of hot or cold fluids. Due to their insulation layer, double wall stainless steel pipes have superior energy efficiency compared to single wall pipes. They minimize heat loss or gain, reducing energy consumption and optimizing the efficiency of heating or cooling systems. Additionally, the insulation layer also helps to reduce condensation, which can prevent damage to surrounding equipment or structures. In summary, the main difference between double wall and single wall stainless steel pipes is the presence of an insulation layer in double wall pipes. This insulation layer provides thermal insulation, making them suitable for applications that require temperature control and energy efficiency. Single wall pipes, on the other hand, are commonly used in various industrial applications that do not require insulation or stringent temperature control.

Q:Can stainless steel pipes spray black paint?: Stainless steel pipes can spray black paint.The surface of stainless steel has a smooth surface

Q:What is the average cost of stainless steel pipes?: The average cost of stainless steel pipes can vary depending on various factors such as the size, grade, and supplier. On average, stainless steel pipes can range from $5 to $20 per foot. However, it is recommended to obtain quotes from multiple suppliers to get a more accurate and current price.

Q:Are stainless steel pipes suitable for water desalination plants?: Yes, stainless steel pipes are suitable for water desalination plants. Stainless steel is an excellent material choice for water desalination plants due to its corrosion resistance, durability, and hygienic properties. These pipes are highly resistant to rust, corrosion, and scaling, ensuring a long lifespan and minimal maintenance requirements. Additionally, stainless steel pipes do not leach harmful substances into the water, making them safe for use in desalination plants. Their high strength and pressure-bearing capacity also make them ideal for handling the high-pressure environments commonly found in water desalination processes. Overall, stainless steel pipes provide reliable and efficient water transport in desalination plants, contributing to the production of clean and safe drinking water.

Q:Can stainless steel pipes be used for high-pressure applications?: Yes, stainless steel pipes can be used for high-pressure applications. Stainless steel is known for its excellent strength and corrosion resistance, making it suitable for handling high-pressure environments. It can withstand the high pressure without deformation or leakage, ensuring the safety and reliability of the system.

Q:About stainless steel welding deformation: For welding of grade 304 stainless steel, the current can be adjusted a little, not preheating, to prevent deformation after welding, the welding sequence should pay attention to, such as left -- right -- in the welding line, avoid welding head, to prevent warping.

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