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.
Product Description:
Product Name | Stainless Steel Strip Coils Grade 309S |
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. |
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) |
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 ?
A35: 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?
A3: 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?
A4: 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 ?
A7: 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 ?
A6: Exported to more than 50 countries mainly from America, Russia, UK, Kuwait, Egypt, Turkey, Jordan,India, etc.