304 316L Stainless Steel Pipe Price (ISO Certified factory direct price )
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- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 2 m.t.
- Supply Capability:
- 25000 m.t./month
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Specification
316 stainless steel pipe
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. |
Mechanical Properties: MaterialY.S(N/MM2)T.S(N/MM2)ElongationHRB304>205>520>40<95304l>175>480>40<90316>205>520>40<90316l>175>480>40<90430>205>450>22<89
Applications: SurfaceApplication2BMedical equipment, Food industry, Construction material, Kitchen utensils.BAKitchen utensils, Electric equipment, Building construction.No.1Chemical tank, pipe.No.4Kitchen utensils, Building construction,Medical equipment.HLBuilding Construction.
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- Q: How do you join stainless steel pipes to other materials?
- There are various methods available for joining stainless steel pipes to other materials, depending on the specific application and requirements. Below are some commonly used techniques: 1. Welding: The most widely used and effective method for joining stainless steel pipes to other materials is welding. Depending on the material and desired joint strength, different welding processes like TIG welding, MIG welding, or stick welding can be employed. Welding ensures a strong and long-lasting bond between the stainless steel pipes and other materials. 2. Flanges: Flanges are frequently utilized to connect stainless steel pipes to other materials when easy disassembly or connection to different equipment is necessary. Flanges are usually made from materials such as carbon steel, cast iron, or even stainless steel itself. These flanges are bolted together, creating a secure joint that can be easily disconnected, as required. 3. Threaded connections: Threaded connections provide another means of joining stainless steel pipes to other materials. This method is commonly used for smaller diameter pipes or situations where easy removal or replacement of the pipes is needed. Threaded connections can be achieved using pipe fittings like couplings, unions, or adapters, which have male and female threads that screw together to form a tight seal. 4. Compression fittings: Compression fittings are an alternative option for joining stainless steel pipes to other materials. These fittings consist of a compression nut, a ferrule, and a body that houses the ferrule. The ferrule is compressed onto the pipe, creating a tight seal when the compression nut is tightened. Compression fittings ensure a reliable and leak-free joint between stainless steel pipes and other materials. 5. Mechanical connectors: In certain cases, mechanical connectors can be used to join stainless steel pipes to other materials. These connectors typically involve clamping or fastening mechanisms that secure the pipes together without the need for welding or threading. Mechanical connectors are suitable when disassembly and reassembly are required. When selecting the appropriate method to join stainless steel pipes to other materials, it is crucial to consider the specific application, material compatibility, and the required strength and durability of the joint. Consulting with a professional or referring to industry standards and guidelines is recommended to ensure a proper and reliable connection.
- Q: Are stainless steel pipes suitable for irrigation systems?
- Yes, stainless steel pipes are suitable for irrigation systems. Stainless steel is known for its excellent corrosion resistance, durability, and strength, making it an ideal choice for irrigation systems that are exposed to water and moisture. Stainless steel pipes can withstand high-pressure conditions and are resistant to rust and corrosion, ensuring a long lifespan and minimal maintenance requirements. Additionally, stainless steel pipes are also safe for conveying water for irrigation purposes as they do not leach harmful chemicals into the water supply.
- Q: Can stainless steel pipes be insulated with polyacrylonitrile?
- Indeed, polyacrylonitrile (PAN) can be employed to insulate stainless steel pipes. PAN, a highly adaptable and widely utilized polymer, boasts exceptional thermal insulation capabilities. Thanks to its low thermal conductivity and resistance to heat transfer, PAN is frequently utilized as a foam or fiber insulation material. Applying PAN insulation to stainless steel pipes is a straightforward process that aids in minimizing heat loss or gain, enhancing energy efficiency, and averting condensation. Furthermore, it affords protection against corrosion and mechanical harm.
- Q: What is the difference between seamless and HFW stainless steel pipes?
- Seamless stainless steel pipes are made by piercing a solid billet of stainless steel and then rolling it into a pipe shape without any welding or joints. This seamless manufacturing process results in a smooth and continuous pipe with uniform thickness throughout. On the other hand, HFW (High-Frequency Welding) stainless steel pipes are created by forming a flat strip of stainless steel into a pipe shape and then welding the edges using high-frequency electric currents. This welding process produces a strong and durable joint, but there may be a noticeable weld bead or seam along the length of the pipe. In summary, the main difference between seamless and HFW stainless steel pipes lies in their manufacturing processes. Seamless pipes have no welds or joints, offering a smooth appearance and enhanced corrosion resistance. HFW pipes, although having welded seams, provide a cost-effective option with reliable strength and durability. Ultimately, the choice between these two types of pipes depends on specific application requirements and budget considerations.
- Q: What does "stainless steel pipe" DN mean?
- Nominal diameter is the size of all piping accessories in the piping system. The nominal diameter is a convenient round integer for reference and is not strictly related to the processing size. The nominal diameter follows the letter "DN" followed by a number sign.
- Q: Are stainless steel pipes suitable for sanitary applications?
- Yes, stainless steel pipes are highly suitable for sanitary applications. They are corrosion-resistant, easy to clean, and have excellent hygienic properties, making them ideal for use in industries such as food and beverage, pharmaceuticals, and water treatment.
- Q: What is the chemical composition of stainless steel pipes?
- Stainless steel pipes consist mainly of iron, chromium, and other elements in varying quantities based on the specific grade or type. Iron is the primary element responsible for providing the pipes with their structural strength and durability. Chromium, on the other hand, plays a crucial role in conferring corrosion-resistant properties to stainless steel. It creates a thin, protective layer on the steel's surface that shields it from oxidation and rust. Additionally, stainless steel pipes often contain other elements such as nickel, molybdenum, and manganese. These elements further enhance the pipes' resistance to corrosion, bolster their strength, and bestow them with specific properties. The precise chemical composition of stainless steel pipes can differ significantly depending on the intended application and grade, enabling varying levels of strength, corrosion resistance, and heat resistance.
- Q: Can magnets attract stainless steel tubes?
- Can not. The structure of iron ion in stainless steel tube has changed
- Q: How can I clean the stainless steel tube?
- Stubborn or burned stains, can be mixed with baking soda and water, wipe with a soft cloth.
- Q: What is the working temperature range for stainless steel pipes?
- The working temperature range for stainless steel pipes depends on the specific grade of stainless steel being used. Generally, stainless steel pipes can withstand a wide range of temperatures, from extremely low temperatures to high temperatures. For austenitic stainless steel grades, which are the most commonly used in pipe applications, the working temperature range is typically from -196°C (-320°F) to 816°C (1500°F). These grades, such as 304 and 316, exhibit excellent heat resistance and can maintain their strength and corrosion resistance even at elevated temperatures. However, it is important to note that the working temperature range can vary depending on the specific alloy composition and the application requirements. Some specialized stainless steel grades, such as duplex or super duplex stainless steels, may have different temperature limits due to their unique characteristics. It is always recommended to consult the manufacturer's specifications and guidelines to determine the specific working temperature range for a particular grade of stainless steel pipe. Additionally, considering factors such as pressure, corrosive environment, and thermal cycling should also be taken into account when determining the appropriate working temperature range for stainless steel pipes.
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304 316L Stainless Steel Pipe Price (ISO Certified factory direct price )
- 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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