304 /316/321stainless steel seamless pipe

304 /316/321stainless steel seamless pipe System 1

304 /316/321stainless steel seamless pipe

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Loading Port:: Qingdao

Payment Terms:: TT OR LC

Min Order Qty:: 100 kg

Supply Capability:: 1000000 kg/month

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Specification

Standard:

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

Technique:

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

Shape:

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

Surface Treatment:

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

Steel Grade:

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

Certification:

API,CE,RoHS,IBR,BV,ISO,SGS,UL,BSI

Thickness:

0.1-100mm

Length:

1-12

Outer Diameter:

1-500

Net Weight:

100000

Stainless steel pipe is a hollow long round steel, widely used in petroleum, chemical, medical, food, light industry, machinery, instrument, such as industrial pipeline and mechanical structure parts, etc. In addition, in the bending and torsional strength phase, the weight is lighter, it is widely used in the manufacture of machinery parts and engineering structures. Also commonly used for the production of various kinds of conventional weapons, barrel, shells, etc. We also supply stainless steel parts, such as the three links, elbow, flange etc. Looking forward to establishing a long-term business relationship with you.

stainless pipe 202-1

Item	Description
Product name	Stainless steel pipe/tube
Material	201 202 304 304L 316 316L 321 309 310 310S 430 410
Thickness	0.5mm-100mm
Outer diameter	10mm-1000mm
Length	6meters or as per customized
Technical treatment	Cold rolled and Hot rolled
Application	decorative pipe, construction pipe, mechanical pipe, stove heat exchanger tubes, food hygiene pipe, water and liquid delivery
Standard	ASTM GB KS AISI SAE AWS ASME BS DIN CAS API KR NK LR AB JIS
Certification	BV ISO SGS API WSF
Dimension(LWH)	0.5mm6mm6000mm-8mm610mm6000mm
Trade terms	Pay terms: L/C T/T west union
Trade terms	Price terms: FOB CIF EXW CFR

Test	Squash test, extended test, water pressure test, crystal rot test, heat treatment, NDT
Chemical Composition		201	202	304	316	430
	C	≤0.15	≤0.15	≤0.08	≤0.08	≤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	16-18	17-19	18-20	16-18	16-18
	Ni	3.5-5.5	4.0-6.0	8.0-10.5	10.0-14.0
	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)		< 253	< 253	< 200	< 200

Q: Can stainless steel pipes be heat treated?: Yes, stainless steel pipes can be heat treated. Heat treatment is a process that involves heating the stainless steel pipe to a specific temperature, holding it at that temperature for a certain period of time, and then cooling it down in a controlled manner. This process is typically done to alter the mechanical properties of the stainless steel, such as increasing its hardness or improving its strength. Heat treatment can also be used to relieve stress or remove impurities in the stainless steel pipe. However, it is important to note that not all grades of stainless steel can be heat treated, as the composition of the alloy plays a significant role in its heat treatability. It is recommended to consult the manufacturer or a metallurgical expert to determine the appropriate heat treatment process for a specific stainless steel pipe.

Q: How do you protect stainless steel pipes from internal corrosion?: One effective way to protect stainless steel pipes from internal corrosion is by using corrosion inhibitors. These chemicals are added to the fluid or water that flows through the pipes, forming a protective layer on the inner surface of the pipes, preventing corrosion. Additionally, regular cleaning and maintenance of the pipes can help remove any accumulated debris or corrosion-inducing substances, ensuring their longevity and integrity.

Q: Can stainless steel pipes be used for food processing equipment?: Stainless steel pipes have the capability to be utilized for food processing equipment. The food industry highly favors stainless steel due to its ability to resist corrosion, its durability, and its hygienic properties. It does not interact with food or beverages, guaranteeing the absence of contamination or alteration of the product. In addition, stainless steel pipes are easily cleaned and maintained, making them an ideal option for use in food processing equipment where cleanliness and food safety are crucial. Furthermore, stainless steel has the capacity to endure high temperatures and pressures, which are often necessary in food processing operations. In conclusion, stainless steel pipes are a suitable choice for food processing equipment and are extensively employed in the industry.

Q: Do stainless steel pipes require any special coatings?: Stainless steel pipes, being resistant to corrosion and staining, are highly durable and long-lasting. Their inherent corrosion resistance eliminates the need for extra coatings or treatments. The presence of chromium in the alloy composition creates a protective oxide layer on the surface, preventing rust and corrosion. As a result, stainless steel pipes can be used in various applications without the necessity of special coatings for protection.

Q: Can stainless steel pipes be used for outdoor handrails?: Yes, stainless steel pipes can be used for outdoor handrails. Stainless steel is highly resistant to corrosion and rust, making it an excellent choice for outdoor applications. It is durable, low-maintenance, and able to withstand various weather conditions, making it a suitable material for outdoor handrails.

Q: Can stainless steel pipes be sandblasted?: Yes, stainless steel pipes can be sandblasted. Sandblasting is a common method used to clean, smooth, or texture the surface of various materials, including stainless steel. It involves propelling fine particles or abrasive materials at high speeds to remove contaminants or create a desired finish. Sandblasting can effectively remove rust, scale, paint, or other coatings from stainless steel pipes, preparing them for further treatment, such as painting or coating. It is important to consider the type and size of abrasive material used during sandblasting to avoid damaging the stainless steel surface. Additionally, proper safety measures should be followed to protect workers from the hazards associated with sandblasting.

Q: How are stainless steel pipes tested for quality?: To ensure compliance with required standards and specifications, stainless steel pipes are subjected to a rigorous evaluation process. Various methods are employed to assess their quality. One commonly used test is visual examination, where skilled inspectors utilize specialized equipment to meticulously inspect the pipes for any surface defects such as cracks, pits, or corrosion. Dimensional inspection is another crucial quality assessment. During this test, the pipes are carefully measured to verify if they meet the specified dimensions, including length, diameter, and wall thickness. This meticulous examination ensures that the pipes are manufactured with precision and accuracy. Mechanical tests are conducted to evaluate the strength and durability of the stainless steel pipes. These tests encompass various assessments such as tensile strength, yield strength, elongation, and hardness. Tensile strength determines the maximum stress the pipe can withstand before breaking, while yield strength measures the stress at which the pipe starts to deform permanently. Elongation gauges the pipe's ability to stretch without breaking, while hardness indicates its resistance to indentation or scratching. Non-destructive testing methods, including ultrasonic testing and eddy current testing, are also employed. These methods allow for the detection of internal defects or irregularities in the pipe using high-frequency sound waves and electromagnetic currents, respectively. These tests can identify surface cracks or flaws that may not be visible to the naked eye. Moreover, chemical composition analysis is performed to ensure that the stainless steel pipes contain the appropriate amounts of alloying elements, such as chromium and nickel. These elements are crucial in providing the pipes with corrosion resistance properties. In conclusion, stainless steel pipes undergo a comprehensive testing process to guarantee their quality, strength, and reliability for a wide range of applications in industries such as oil and gas, construction, and manufacturing.

Q: Can stainless steel pipes be cold worked?: Yes, stainless steel pipes can be cold worked. Cold working is a process in which the metal is deformed at room temperature, typically through processes like bending, drawing, or rolling. Stainless steel's excellent mechanical properties and ductility make it well-suited for cold working, allowing for the creation of complex shapes and designs while retaining its strength and corrosion resistance.

Q: What is the difference between schedule 10 and schedule 160 stainless steel pipes?: The difference between schedule 10 and schedule 160 stainless steel pipes lies in their respective wall thicknesses and pressure ratings. Schedule 10 stainless steel pipes have a thinner wall thickness compared to schedule 160 pipes. This means that schedule 10 pipes are lighter and have a smaller diameter compared to schedule 160 pipes. The wall thickness of schedule 10 stainless steel pipes is typically 0.109 inches, while schedule 160 pipes have a wall thickness of 0.375 inches. The thicker wall of schedule 160 pipes allows them to withstand higher pressures and handle more heavy-duty applications compared to schedule 10 pipes. Additionally, schedule 160 stainless steel pipes have a higher pressure rating compared to schedule 10 pipes. Schedule 160 pipes are designed to handle higher levels of pressure, making them suitable for applications that require a high level of strength and durability, such as industrial processes or high-pressure fluid transportation systems. In summary, the main difference between schedule 10 and schedule 160 stainless steel pipes is their wall thickness and pressure rating. Schedule 10 pipes have a thinner wall and lower pressure rating, while schedule 160 pipes have a thicker wall and higher pressure rating. The choice between the two will depend on the specific requirements and demands of the application in question.

Q: Are stainless steel pipes suitable for underground sewage systems?: Yes, stainless steel pipes are suitable for underground sewage systems. Stainless steel pipes are known for their durability, strength, and resistance to corrosion, making them an excellent choice for underground applications. They have a long lifespan and can withstand the harsh conditions typically found in sewage systems, such as exposure to moisture, chemicals, and varying temperatures. Additionally, stainless steel pipes have a smooth interior surface, which helps prevent the buildup of debris or waste, reducing the risk of clogs or blockages. Overall, stainless steel pipes provide a reliable and long-lasting solution for underground sewage systems.

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