309S 2B Hot Rolled Stainless Steel Coil ASTM Standard for Marine
Applications
Product Description:
309S is a variant of 309 stainless steel with low carbon content,
which is used for occasions requiring welding. The lower carbon
content minimizes the precipitation of carbides in the heat
affected zone near the weld, which may lead to intergranular
corrosion (welding corrosion) of stainless steel in some
environments.
The 309S stainless steel coil is a high-temperature resistant grade
of stainless steel. It contains additional alloying elements that
provide enhanced resistance to corrosion and high-temperature
environments.
The 2B finish refers to the surface finish of the coil. The "2B"
indicates a matte or dull finish, which is achieved through a cold
rolling and annealing process. This finish provides a uniform and细微
surface texture.
The hot rolled process is used to produce the coil. During hot
rolling, the stainless steel is heated to a high temperature and
rolled into the desired thickness and shape.
ASTM Standard for Marine Applications ensures that the coil meets
the specific requirements and specifications for use in marine
environments. This includes testing for mechanical properties,
corrosion resistance, and weldability.
This type of stainless steel coil is commonly used in marine
applications such as shipbuilding, offshore structures, marine
piping, and naval architecture. Its resistance to corrosion and
high-temperature makes it suitable for withstanding the harsh
conditions encountered in marine environments.
The 309S 2B Hot Rolled Stainless Steel Coil ASTM Standard for
Marine Applications offers durability, corrosion resistance, and
meets the industry standards for marine applications. Proper
installation and maintenance are crucial to ensure its performance
and longevity in marine settings.
It's important to note that specific applications and requirements
may vary. It is advisable to consult relevant specifications and
guidelines to ensure the suitability of this coil for a particular
marine project or application.
Product Name | 309S 2B Hot Rolled Stainless Steel Coil ASTM Standard for Marine
Applications |
Size | as required |
Width | 20mm-2000mm or as required |
Thickness | 0.02mm-40mm or as required |
Standard | ASTM/JIS/GB/UNS/AS |
Technique | Hot rolled / cold rolled |
Surface Treatment | 2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, chequered, embossed,
hairline, sand blast, Brush, etching, Hot rolled plate (HR), Cold
rolled sheet (CR), SATIN (Met with Plastic Coated) etc |
Thickness Tolerance | ±0.01mm~ ±0.25mm |
Material | 309S stainless steel |
Application | Boiler, energy (nuclear power, thermal power, fuel cell),
industrial furnace, incinerator, heating furnace, chemical
industry, petrochemical and other important fields. |
MOQ | 1 ton , We can accept sample order. |
Shipment Time | Within 15-20 workdays after receiving deposit or workable L/C |
Export Packing | Waterproof paper, and steel strip packed. Standard Export Seaworthy Package.Suit for all kinds of
transport,or as required |
Capacity | 250,000 tons/year |
Chemical Composition:
C | Si | Mn | P | S | Cr | Ni | N |
≤ % | ≤ % | ≤ % | ≤ % | ≤ % | % | % | ≤ % |
0.08 | 1.0 | 2,0 | 0,045 | 0,03 | 22.0-24.0 | 12.0-15.0 | / |
Physical Properties:
Density | Thermal Conductivity 212°F (100°C) |
0.285 lbs/in3 | 9.0 BTU/hr/ft2/ft/°F |
7.89 g/cm3 | 15.6 W/m-°K |
Specific Heat | Melting Range |
0.12 BTU/lb-°F (32 – 212°F) | 2500 – 2590°F |
502 J/kg-°K (0 – 100°C) | 1480 – 1530°C |
Modulus of Elasticity | Electrical Resistivity |
28.5 x 106 psi | 30.7 Microhm-in at 68°C |
193 GPa | 78 Microhm-cm at 20°C |
Typical Values at 68°F (20°C)
Yield Strength | Ultimate Tensile | Elongation | Hardness |
0.2% Offset | Strength | in 2 in. |
psi (min.) | (MPa) | psi (min.) | (MPa) | % (min.) | (max.) |
45,000 | 310 | 85,000 | 586 | 50 | 202 (HBN) |
Application:
Applications of 309S 2B Hot Rolled Stainless Steel Coil ASTM
Standard for Marine Applications:
- Shipbuilding: This coil is used in the construction of ships and
boats, including hulls, decks, and superstructures, due to its
corrosion resistance in marine environments.
- Offshore structures: It finds applications in offshore oil rigs,
platforms, and wind turbines, where it withstands the harsh
conditions of saltwater and exposure to marine elements.
- Piping systems: The coil is utilized in piping systems on ships and
offshore installations for transporting fluids, such as water,
fuel, and chemicals.
- Marine equipment: It is suitable for manufacturing marine
equipment, such as pumps, valves, and heat exchangers, due to its
resistance to corrosion and high-temperature.
- Naval architecture: In naval vessels and military applications, the
coil is used for constructing compartments, bulkheads, and other
structural components.
- Yacht building: Due to its aesthetic appeal and corrosion
resistance, the coil is chosen for manufacturing yachts and
pleasure boats.
- Marine infrastructure: It can be utilized in the construction of
docks, piers, and marinas, providing durability and resistance to
saltwater corrosion.
- Fishing vessels: Fishing boats and vessels often use this coil for
constructing fishing gear, tanks, and processing equipment.
- Marine repair and maintenance: The coil is used in marine repair
and maintenance work, such as welding and fabricating components
for ships and offshore structures.
The applications of 309S 2B Hot Rolled Stainless Steel Coil ASTM
Standard for Marine Applications are diverse, catering to the
specific requirements of the marine industry. Its corrosion
resistance, high-temperature tolerance, and mechanical properties
make it a preferred choice for withstanding the challenging
conditions encountered in marine environments.
FAQ:
Q1. What are your company's main products ?
A1: Our main products are stainless steel plate/sheet, coil,
round/square pipe, bar, channel, etc.
Q2. How do you control quality ?
A2: Mill Test Certification is supplied with shipment, Third Party
Inspection is available. and we also get ISO,SGS,Alibaba Verified.
Q3. What are the advantages of your company ?
A3: We have many professionals, technical personnel, more
competitive prices and best after-dales service than other
stainless steel companies.
Q4: What is the terms of packing?
A4: generally, we pack our goods in bundles or coils with rods or
belts, we could also pack the goods as the customers requirement.
Q5:What is your delivery time?
A5: For stocks, we could transport the goods to loading port within
7 days after we received your deposit
For production period, it usually takes about 15 days-30 days after
receiving the deposit.
Q6. Can you provide sample ?
A6: We can provide the samll samples in stock for free, as long as
you contact us.
Customized samples will take about 5-7days.
Q7. How many coutries you already exported ?
A7: Exported to more than 50 countries mainly from America, Russia,
UK, Kuwait, Egypt, Turkey, Jordan,India, etc.