316l Stainless Steel Seamless Pipe in Wuxi ,China
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 2 m.t.
- Supply Capability:
- 25000 m.t./month
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Item specifice
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 | <100 | <90 | <90 | ||
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.
Surface Finish :
Surface finish | Characteristics and application |
No.2B | The surface brightness and flatness of no2B is better than no2D. then through a special surface treatment to improve its mechanical properties, No2B could nearly satisfy comprehensive uses. |
No.3 | Polished with abrasive belt of git#100-#200, have better brightness with discontinuous coarse stria, used as inner and external ornaments for building, electrical appliances and kitchen utensils etc. |
No.4 | Polished with abrasive belt of grit #150-#180,have better brightness with discontinuous coarse stria, but thinner than No3, are used as bathtub buildings inner and external ornaments electrical appliances kitchen utensils and food processing equipment etc. |
HL | Polished with abrasive belt of grit #150-#320 on the NO.4 finish and has continuous streaks, mainly used as buildings ornaments elevators, door of building, frontal plate etc. |
BA | Cold rolled, bright annealed and skin-passed, the product have excellent brightness and good reflexivity like mirror, kitchen apparatus, ornament etc. |
8K | The product have excellent brightness and prefer reflexivity can to be the mirror. |
- Q:What is the difference between 321 and 321H stainless steel pipes?
- The main difference between 321 and 321H stainless steel pipes lies in their carbon content and resulting mechanical properties. Both grades are stabilized austenitic stainless steels with titanium as the stabilizing element. However, 321H contains a higher carbon content compared to 321. The increased carbon content in 321H provides improved high-temperature strength and creep resistance. This makes 321H suitable for applications where elevated temperatures are involved, such as in the manufacturing of heat exchangers, furnace parts, and other high-temperature equipment. On the other hand, 321 stainless steel pipes are commonly used in applications that do not require exposure to high temperatures. They offer excellent resistance to intergranular corrosion and are frequently used in the aerospace industry, as well as for the fabrication of exhaust systems, chemical processing equipment, and other general-purpose applications. In summary, the difference between 321 and 321H stainless steel pipes lies in their carbon content and resulting mechanical properties. 321H is specifically designed for high-temperature applications, while 321 is suitable for general-purpose applications that do not require exposure to elevated temperatures.
- Q:Can stainless steel pipes be used for water treatment facilities?
- Yes, stainless steel pipes can be used for water treatment facilities. Stainless steel is resistant to corrosion, which makes it suitable for transporting and storing water without the risk of contamination. It also has excellent strength and durability properties, allowing it to withstand the harsh conditions and high pressures typically found in water treatment processes. Additionally, stainless steel pipes can be easily cleaned and maintained, ensuring the purity and safety of the treated water.
- Q:What are the different types of stainless steel pipe couplings?
- In the market, one can find a variety of stainless steel pipe couplings, each offering their own unique features and functions. Some commonly used types are as follows: 1. Compression couplings: These couplings are designed to securely connect pipes by compressing their ends together using a compression nut. They are suitable for both rigid and flexible pipe systems and can be easily installed. 2. Flanged couplings: These couplings have flanges on both ends, which can be bolted together to create a strong and leak-proof connection. They are commonly used in industrial applications that involve high pressures and temperatures. 3. Grooved couplings: These couplings consist of two segments that grip the pipe ends when tightened, creating a reliable and flexible connection. They are frequently used in fire protection systems and HVAC applications, as they are easy to install and can withstand vibration and movement. 4. Threaded couplings: These couplings have internal threads that allow them to be screwed onto the pipe ends. They are commonly used in low-pressure applications and can be easily assembled and disassembled. 5. Quick connect couplings: These couplings have a quick-connect mechanism that enables easy and rapid installation without the need for tools or additional components. They are commonly used in plumbing and irrigation systems. 6. Welded couplings: These couplings require welding the pipe ends together to create a permanent and strong connection. They are commonly used in high-pressure and high-temperature applications where a robust joint is essential. To ensure the appropriate selection of a stainless steel pipe coupling, it is important to consider the specific requirements of the application, such as operating conditions, pipe material, and system design. Seeking advice from a professional or referring to industry standards can help in making the right choice.
- Q:What are the different types of stainless steel pipe insulation?
- On the market, you can find various stainless steel pipe insulation options. These options differ in terms of their material composition, construction, and insulation properties. One popular option is fiberglass insulation, which involves wrapping a layer of fiberglass material around the stainless steel pipe. This type of insulation is known for its exceptional thermal insulation properties and its ability to withstand high temperatures. It is also resistant to moisture, making it suitable for both indoor and outdoor use. Another option is foam insulation, which is made from a foamed plastic material like polyurethane or polystyrene. Foam insulation is lightweight, easy to install, and provides good thermal and acoustic insulation. It is commonly used in residential and commercial buildings to insulate hot water pipes and HVAC systems. Additionally, there are elastomeric insulation materials, which are flexible rubber-like materials that can be easily wrapped around the stainless steel pipe. These materials are recognized for their excellent thermal insulation properties and their ability to resist moisture and condensation. Elastomeric insulation is frequently used in refrigeration and air conditioning systems. Lastly, there are pre-insulated stainless steel pipe systems, which come with a layer of insulation material already applied to the stainless steel pipe. This type of insulation is commonly used in industrial applications where thermal insulation is critical, such as in chemical plants or oil refineries. To sum up, the available options for stainless steel pipe insulation include fiberglass insulation, foam insulation, elastomeric insulation, and pre-insulated pipe systems. The choice of insulation type depends on factors such as the specific application, desired insulation properties, and budget.
- Q:Can stainless steel pipes be used for gas transportation?
- Indeed, gas transportation can indeed make use of stainless steel pipes. Stainless steel, known for its resistance to corrosion, possesses the ability to endure high-pressure circumstances. This characteristic makes it suitable for the conveyance of diverse gases such as natural gas, propane, and hydrogen. The strength, durability, and ability to withstand extreme temperatures exhibited by stainless steel pipes render them an unquestionably dependable choice for gas transportation. Moreover, the non-reactive nature of stainless steel guarantees the preservation of gas integrity and reduces the likelihood of contamination. All in all, the gas industry extensively employs stainless steel pipes due to their reliable nature, safety, and prolonged lifespan.
- Q:Can stainless steel pipes be pressure tested?
- Yes, stainless steel pipes can be pressure tested. Pressure testing involves subjecting the pipes to a higher pressure than they would normally experience during normal operations to ensure their strength and integrity. Stainless steel is known for its durability and ability to withstand high-pressure conditions, making it suitable for pressure testing applications. The process involves filling the pipes with a liquid or gas and increasing the pressure to the desired level while monitoring for any leaks or failures. It is important to follow proper procedures and safety measures during pressure testing to ensure accurate results and prevent any potential hazards.
- Q:What are the different types of stainless steel pipe unions?
- There are various types of stainless steel pipe unions, including threaded unions, socket weld unions, and butt weld unions. Threaded unions have female threads on both ends, allowing them to be easily screwed onto male threaded pipes. Socket weld unions have one socket end and one threaded end, allowing for easy welding onto pipes. Butt weld unions have two plain ends that are welded directly to pipes using the butt welding technique.
- Q:What is the difference between ferritic and austenitic stainless steel pipes?
- The primary distinction between ferritic and austenitic stainless steel pipes lies in their microstructure and composition, resulting in different properties and applications. Ferritic stainless steel pipes possess a ferrite microstructure, characterized by a body-centered cubic crystal structure. They boast high chromium levels (typically 10-30%) and low carbon content. This low carbon composition grants them excellent resistance against corrosion, though they are susceptible to sensitization and intergranular corrosion at elevated temperatures. Furthermore, they exhibit commendable durability, heat resistance, and magnetism, rendering them suitable for various uses such as automotive exhaust systems, architectural structures, and heat exchangers. In contrast, austenitic stainless steel pipes possess an austenite microstructure, characterized by a face-centered cubic crystal structure. These pipes contain high levels of chromium (usually 16-26%) and nickel (typically 6-22%), alongside low carbon content. Austenitic stainless steel pipes demonstrate superior resistance against corrosion, even in highly aggressive environments. They are non-magnetic, extremely ductile, and possess high toughness, making them ideal for industries such as chemical processing, food and beverage, pharmaceuticals, and medical equipment manufacturing. Additionally, they are less prone to sensitization and intergranular corrosion compared to their ferritic counterparts. To summarize, ferritic stainless steel pipes possess a ferrite microstructure, good corrosion resistance, and magnetism, while austenitic stainless steel pipes possess an austenite microstructure, superior corrosion resistance, non-magnetic properties, and enhanced mechanical properties. The choice between ferritic and austenitic stainless steel pipes hinges on the specific application, desired properties, and environmental conditions.
- Q:Stainless steel seamless steel tube, ordinary seamless steel pipe, which is good?
- There are many kinds of seamless steel tubes. If you require high strength, the strength of the ordinary seamless tube is higher than that of the stainless steel
- Q:Can stainless steel pipes be insulated with polycaprolactone?
- Yes, stainless steel pipes can be insulated with polycaprolactone. Polycaprolactone is a versatile and flexible thermoplastic material that can be used for insulation purposes. It can provide effective thermal insulation to stainless steel pipes and help in reducing heat transfer and preventing condensation.
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316l Stainless Steel Seamless Pipe in Wuxi ,China
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 2 m.t.
- Supply Capability:
- 25000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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