316 Stainless Steel Pipe

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 5 m.t.

Supply Capability:: 100000 m.t./month

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STAINLESS STEEL PIPE CHEAP and GOOD QUALITY from CHINA

Item specifice

Standard:

AISI,ASTM,JIS,GB,BS,DIN,API,EN

Technique:

Spring,Hot Rolled,Cold Rolled,Cold Drawn,ERW,Forged,Saw,Extruded,EFW

Shape:

LTZ,Oval,Rectangular,Round,Hexagonal,C Channel,Square,U Channel

Surface Treatment:

PVDF Coated,Black,Bright,Polished,Chromed Passivation,Dry,Oiled,Color Coated,Copper Coated,Coated,Galvanized

Steel Grade:

RHB335,Q215B,Q235,Q215,Q195,A53(A,B),20#,10#,SS400-SS490,600 Series,400 Series,300 Series,200 Series,HRB400,Q235B

Certification:

CE,SGS,ISO

Thickness:

as required

Length:

12m

Net Weight:

as required

SPECIFICATION

Stainless Steel Pipe:

1. 201, 202, 301, 304, 316L, 430, etc

2. OD: 6mm-159mm

3. Thickness: 0.25mm-3.5mm

4. Finish: Mirror, Satin, Hairline

316 STAINLESS STEEL PIPE:

Name	316 Stainless steel pipe
Standard	ASTM A554,ASTM A312
Material Grade	201,202,304,316,316L,430
Main Material	a) 201 (Ni0.8%-1%) b) 202 (Ni: 3.0%-4.0%) c) 304 (Ni: 8% Cr: 18%) d) 316 (Ni: 10% Cr: 18%)
Size Range	139mm-1600mm ETC.
Thickness	0.5-30mm
Length	6m or as customers' request
Tolerance	a) Outer Diameter: +/- 0.2mm
	b) Thickness: +/- 0.02mm
	c) Length: +/- 5mm
Surface	180G, 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		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

316 Stainless Steel Pipe

Q:What is the difference between seamless and welded stainless steel pipes?: The main difference between seamless and welded stainless steel pipes lies in their manufacturing process and the resulting characteristics of the pipes. Seamless stainless steel pipes are produced by piercing a solid billet or ingot, heating it to a high temperature, and then rolling it into a hollow cylindrical shape. This process ensures that there are no seams or joints in the pipe, resulting in a smooth and uniform surface. Seamless pipes are generally considered to have higher strength and better corrosion resistance compared to welded pipes. They are also preferred in applications where high pressure or temperature is involved, as their seamless nature makes them more reliable and less prone to leaks. On the other hand, welded stainless steel pipes are manufactured by joining two or more pieces of steel together using various welding techniques. This process introduces a seam or weld line along the length of the pipe. Welded pipes can be produced in a continuous or intermittent welding process, depending on the required specifications. While welded pipes may have slightly lower strength and corrosion resistance compared to seamless pipes, advancements in welding technology have significantly improved their quality and performance. Welded pipes are generally more cost-effective and commonly used in applications where lower pressure or temperature is involved. In summary, the difference between seamless and welded stainless steel pipes lies in their manufacturing process and resulting characteristics. Seamless pipes, with no seams or joints, offer higher strength, better corrosion resistance, and are preferred in high-pressure or temperature applications. Welded pipes, with welded seams, are more cost-effective, commonly used in lower-pressure or temperature applications, and have seen significant improvements in quality and performance. Ultimately, the choice between seamless and welded pipes depends on the specific requirements of the application and cost considerations.

Q:What are the different types of stainless steel pipe tees?: Different applications and requirements call for various kinds of stainless steel pipe tees. 1. An equal tee is designed with three outlets of the same size, forming a 90-degree angle. It is commonly utilized to branch off or combine flow in a pipeline with equal diameters. 2. A reducing tee, as the name implies, has one outlet smaller than the other two. Its purpose is to connect pipes of different sizes, facilitating a seamless transition in fluid or gas flow. 3. In high-pressure or high-temperature applications, a barred tee provides additional support and reinforcement with a welded bar across the branch opening. This prevents stress concentration and potential failure. 4. For pipeline diversion or angled connections, a lateral tee with one outlet at a 45-degree angle is often employed. 5. A cross tee, featuring four outlets forming a cross-shaped configuration, is used when flow needs to be split or combined in multiple directions, primarily in complex piping systems. 6. Unions and socket weld tees have sockets or unions at the branch connection, allowing for easy disassembly and maintenance. They are commonly used when regular inspection, cleaning, or replacement is required. 7. Threaded tees have threaded branch connections that can be screwed onto the pipe without welding. They are frequently used in low-pressure applications or situations where frequent disassembly is necessary. Each type of stainless steel pipe tee offers specific advantages and is chosen based on the requirements of the particular piping system, including flow rates, pressure, temperature, and compatibility with the transported fluids or gases.

Q:Can stainless steel pipes be used for high-pressure applications?: Indeed, high-pressure applications can utilize stainless steel pipes. Renowned for their exceptional corrosion resistance, strength, and durability, stainless steel proves to be a fitting choice for managing high-pressure fluids or gases. Without succumbing to deformation or leakage, stainless steel pipes endure immense pressures, guaranteeing the secure and effective transportation of fluids across diverse industries such as oil and gas, chemical processing, and power generation. Moreover, their ability to withstand extreme temperatures further amplifies their aptness for high-pressure applications.

Q:Can stainless steel pipes be used in the food processing industry?: The food processing industry can make use of stainless steel pipes. Stainless steel is a preferred option in food processing because it possesses numerous advantageous qualities. Firstly, stainless steel's resistance to corrosion is vital in an environment where food and liquids are constantly being handled and processed. Additionally, stainless steel's easy maintenance and cleaning are crucial for ensuring hygiene and preventing contamination in food processing. Stainless steel pipes are also highly durable and strong, enabling them to withstand the demanding conditions of the food processing industry. Furthermore, stainless steel does not react chemically with food or ingredients, ensuring that the quality and taste of processed products remain unaffected. Overall, stainless steel pipes are an exceptional choice for the food processing industry due to their resistance to corrosion, cleanliness, durability, and non-reactive properties.

Q:What is the difference between 17-7 and 15-7 stainless steel pipes?: The main difference between 17-7 and 15-7 stainless steel pipes lies in their composition and properties. The numbers 17-7 and 15-7 refer to the specific ratios of alloys present in the stainless steel. 17-7 stainless steel contains approximately 17% chromium and 7% nickel, along with small amounts of other elements. This composition gives it high strength, excellent formability, and good corrosion resistance. It is often used in applications that require high strength and resistance to fatigue, such as aerospace components and springs. On the other hand, 15-7 stainless steel contains approximately 15% chromium and 7% nickel, with the addition of 2% molybdenum. This addition of molybdenum enhances the material's corrosion resistance, making it suitable for applications in harsh environments and chemical processing industries. In summary, while both 17-7 and 15-7 stainless steel pipes offer good corrosion resistance and are capable of withstanding high strength requirements, 15-7 stainless steel pipes provide enhanced corrosion resistance due to the addition of molybdenum.

Q:What is the welding of stainless steel?: Many welding methods, commonly used argon arc welding, less thermal stress, less molten metal elements, forming beautiful; the remaining manual arc welding, higher requirements can be used when laser welding

Q:What is the difference between 347 and 347H stainless steel pipes?: The carbon content is the main distinguishing factor between 347 and 347H stainless steel pipes. In the case of 347 pipes, the maximum carbon content is 0.08%, while 347H pipes have a higher carbon content range of 0.04-0.10%. This increased carbon content in 347H pipes contributes to enhanced strength at high temperatures and greater resistance to sensitization, which is the formation of chromium carbides at grain boundaries that can lead to intergranular corrosion. Because of its higher carbon content, it is generally recommended to use 347H stainless steel pipes for applications involving elevated temperatures and thermal cycling. These pipes exhibit improved resistance to creep and can withstand higher levels of stress compared to 347 stainless steel pipes. Industries such as chemical processing, petrochemical, and power generation commonly employ 347H pipes due to their exposure to high temperatures and corrosive environments. To summarize, the disparity between 347 and 347H stainless steel pipes rests in their carbon content. 347H pipes offer superior strength at high temperatures and resistance to sensitization. The choice between the two depends on the specific requirements and conditions of the application.

Q:What is the maximum allowable working pressure for stainless steel pipes?: Several factors, including the grade of stainless steel, pipe size, and operating temperature, determine the maximum allowable working pressure for stainless steel pipes. Compared to other materials, stainless steel pipes generally have higher pressure ratings due to their exceptional resistance to corrosion. Standards and codes, such as ASME B31.3 and B31.1, typically determine the maximum allowable working pressure (MAWP). These codes provide guidelines for the fabrication, design, and installation of piping systems. For instance, ASME B31.3 offers tables and formulas that allow for the calculation of the maximum allowable working pressure based on the temperature, wall thickness, and material properties of the stainless steel pipe. Additionally, the code takes into account safety factors, corrosion allowances, and the specific service conditions. To determine the maximum allowable working pressure of the stainless steel pipe being used, it is crucial to consult the relevant standards and codes. Working pressures can vary significantly depending on factors such as pipe grade, dimensions, and intended application.

Q:How do you choose the right stainless steel grade for a specific application?: When choosing the right stainless steel grade for a specific application, several factors need to be considered. These include the desired corrosion resistance, temperature resistance, mechanical properties, and cost-effectiveness required for the application. It is crucial to thoroughly understand the application's environmental conditions, such as exposure to chemicals, moisture, or high temperatures, as this will determine the level of corrosion resistance needed. Additionally, considering the required strength, toughness, and hardness of the stainless steel for the specific application is important. Balancing these factors with the cost-effectiveness of the grade will help in choosing the most suitable stainless steel grade for the application. Consulting with metallurgical experts or referring to industry standards and guidelines can provide further guidance in making an informed decision.

Q:Can stainless steel pipes be used in high-pressure applications?: Stainless steel pipes, being renowned for their exceptional corrosion resistance, durability, and strength, find their suitability in high-pressure applications. They serve as an optimal choice for handling fluids or gases under high pressure owing to their ability to endure extreme conditions without deformation or failure, which is attributed to their high tensile strength. Moreover, stainless steel pipes exhibit consistent properties even in the face of temperature fluctuations, both high and low, ensuring their reliability and effectiveness in high-pressure scenarios.

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