JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
| Payment Terms | T/T, Western Union |
| Supply Ability | 20Ton per week |
| Delivery Time | 5 - 12 days based on the quantity |
| Packaging Details | standard packing for export |
| Products | Stainless Steel Plate |
| Grade | 309S |
| Thickness | 0.4 - 16.0mm |
| Width | 1500mm 1219mm 1000mm |
| Surface | NO.1 2B |
| Brand | TISCO |
| Standard | ASTM A240/240M |
| Loading Port | Shanghai Port |
| Brand Name | TISCO BAOSTEEL |
| Model Number | 309S |
| Certification | ISO |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T, Western Union | Supply Ability | 20Ton per week |
| Delivery Time | 5 - 12 days based on the quantity | Packaging Details | standard packing for export |
| Products | Stainless Steel Plate | Grade | 309S |
| Thickness | 0.4 - 16.0mm | Width | 1500mm 1219mm 1000mm |
| Surface | NO.1 2B | Brand | TISCO |
| Standard | ASTM A240/240M | Loading Port | Shanghai Port |
| Brand Name | TISCO BAOSTEEL | Model Number | 309S |
| Certification | ISO | Place of Origin | China |
| High Light | 309S stainless steel sheet and plate ，stainless steel sheet and plate TISCO ，14.0mm steel sheets and plates | ||
309S Stainless Steel Plate TISCO Thickness 1.0 - 14.0mm SS Plate AISI309 / UNS S30908
Alloy 309/309S (UNS S30900/S30908) austenitic stainless steel is typically used for elevated temperature applications. Its high chromium and nickel content provides comparable corrosion resistance, superior resistance to oxidation, and the retention of a larger fraction of room temperature strength than the common austenitic Alloy 304.
| China * GB | GB24511 | 06Cr23Ni13 |
| Japan | JIS | SUS309S |
| United States of America | ASTM | 309S |
| UNS | S30908 | |
| South Korea | KS | STS309S |
| European Union | BSEN | 1.4833 |
| India | IS | – |
| Australia | AS | 309S |
| Taiwan, China | CNS | 309S |
| Germany | DIN | X12CrNi23-13 |
| United Kingdom | BS970 BS1449 | – |
| Belgium | BS970Part1 | – |
Alloy 309 (UNS S30900) is an austenitic stainless steel developed for use in high temperature corrosion resistance applications. The alloy resists oxidation up to 1900°F (1038°C) under non-cyclic conditions. Frequent thermal cycling reduces oxidation resistance to approximately 1850°F (1010°C).
Because of its high chromium and low nickel content, Alloy 309 can be utilized in sulfur containing atmospheres up to 1832°F (1000°C). The alloy is not recommended for use in highly carburizing atmospheres since it exhibits only moderate resistance to carbon absorption. Alloy 309 can be utilized in slightly oxidizing, nitriding, cementing and thermal cycling applications, albeit, the maximum service temperature must be reduced.
When heated between 1202 – 1742°F (650 – 950°C) the alloy is subject to sigma phase precipitation. A solution annealing treatment at 2012 – 2102°F (1100 – 1150°C) will restore a degree of toughness.
309S (UNS S30908) is the low carbon version of the alloy. It is utilized for ease of fabrication. 309H (UNS S30909) is a high carbon modification developed for enhanced creep resistance. It most instances the grain size and carbon content of the plate can meet both the 309S and 309H requirements.
Alloy 309 can be easily welded and processed by standard shop fabrication practices.
ASTM……..A 240
ASME……..SA 240
AMS……….5523
Wet Corrosion
Alloy 309 is not designed for service in wet corrosive environments. The high carbon content, which is present to enhance creep properties, has a detrimental effect on aqueous corrosion resistance. The alloy is prone to intergranular corrosion after long term exposure at high temperatures. However, due to its high chromium content (23%), Alloy 309 is more corrosion resistant than most heat resistant alloys.
High Temperature Corrosion
Alloy 309 resists high temperature corrosion in most in-service conditions. Operating temperatures are as follows:
Oxidizing conditions (max. sulfur content – 2 g/m3)
1922°F (1050°C) continuous service
2012°F (1100°C) peak temperature
Oxidizing conditions (max. sulfur greater than 2 g/m3)
1742°F (950°C) maximum temperature
Low oxygen atmosphere (max. sulfur content – 2 g/m3)
1832°F (1000°C) maximum temperature
Nitriding or carburizing atmospheres
1562 –1742°F (850 – 950°C) maximum
The alloy does not perform as well as Alloy 600 (UNS N06600) or Alloy 800 (UNS N08800) in reducing, nitriding or carburizing atmospheres, but it does outperform most heat resistant stainless steels in these conditions.
Typical Creep Properties
| Temperature | Creep Strain (MPa) | Creep Rapture (MPa) | |||||
|---|---|---|---|---|---|---|---|
| °C | °F | 1000 H | 10000 H | 100000 H | 1000 H | 10000 H | 100000 H |
| 600 | 1112 | 120 | 80 | 40 | 190 | 120 | 65 |
| 700 | 1292 | 50 | 25 | 20 | 75 | 36 | 16 |
| 800 | 1472 | 20 | 10 | 8 | 35 | 18 | 7.5 |
| 900 | 1652 | 8 | 4 | 3 | 15 | 8.5 | 3 |
| 1000 | 1832 | 4 | 2.5 | 1.5 | 8 | 4 | 1.5 |
Weight % (all values are maximum unless a range is otherwise indicated)
| Element | 309 | 309S | 309H |
|---|---|---|---|
| Chromium | 22.0 min.-24.0 max. | 22.0 min.-24.0 max. | 22.0 min.-24.0 max. |
| Nickel | 12.0 min.-15.0 max. | 12.0 min.-15.0 max. | 12.0 min.-15.0 max. |
| Carbon | 0.20 | 0.08 | 0.04 min.-0.10 max. |
| Manganese | 2.00 | 2.00 | 2.00 |
| Phosphorus | 0.045 | 0.045 | 0.045 |
| Sulfer | 0.030 | 0.030 | 0.030 |
| Silicon | 0.75 | 0.75 | 0.75 |
| Iron | Balance | Balance | Balance |
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 0.2% Offset | Ultimate Tensile Strength | Elongation in 2 in. | Hardness | ||
|---|---|---|---|---|---|
| psi (min.) | (MPa) | psi (min.) | (MPa) | % (min.) | (max.) |
| 45,000 | 310 | 85,000 | 586 | 50 | 202 (HBN) |
Heat uniformly at 1742 – 2192°F (950 – 1200°C). After hot forming a final anneal at 1832 – 2101°F (1000 – 1150°C) followed by rapid quenching is recommended.
The alloy is quite ductile and forms in a manner very similar to 316. Cold forming of pieces with long-term exposure to high temperatures is not recommended since the alloy is subject to carbide precipitation and sigma phase precipitants.
Alloy 309 can be readily welded by most standard processes including TIG, PLASMA, MIG, SMAW, SAW and FCAW.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter
Total Annual:
>1000000
Employee Number:
>100
Ecer Certification：
Verified Supplier
Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative... Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative...
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