309S/0Cr23Ni13/S30908 Stainless Steel Seamless Pipe
Basic Info
Model No.: 309S/0Cr23Ni13/S30908
Product Description
He Bei GuangHao Pipe Fittings Co .,LTD Specializing in the production of Steel Pipe and pipe fittings
Main production:Heat Preservation Anticorrosive Pipe，Seamless Pipe，ERW/HFW Steel Pipe，LSAW STEEL PIPE，Spiral Tube，Buttweld Steel Pipe Fittings,Industrial Flanges,Steel Pipes,Buttweld Elbows,Buttwel Tees,Forged fittings,etc.
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Forged Fittings/Buttweld Steel Pipe Fittings Type: Elbow, cross, street elbow, tee, coupling, half coupling, cap, plug, bushing, union, outlet, sage nipple, bull plug, reducer insert, pipe nipple etc.
309S/0Cr23Ni13/S30908 Stainless Steel Seamless Pipe Type PipelineGrade 309 / 309S are austenitic chromium-nickel stainless steels, which are often used for high temperature applications. Due to their high chromium and nickel content, Grade 309 / 309S pipes are highly corrosion resistant, and have outstanding resistance to oxidation. Also, they exhibit excellent heat resistance while providing good strength at ambient or elevated temperatures. However, the only significant difference between 309 and 309S is the carbon content. Grade 309S stainless steel pipes have a much less carbon composition, which minimizes carbide precipitation, and improves weldability.
Heat Treatment:
- They cannot be hardened through heat treatment because they consist solely of austenite at room temperature
- Higher tensile and yield strengths can be obtained through cold working
Fabrication:
- Can be roll formed, stamped, and drawn readily
- In process annealing is often required to reduce hardness and increase ductility
309 / 309S stainless steel pipes and tubes are used exclusively for their excellent oxidation resistance, and strength at high temperatures. Additionally, they offer good resistance to creep deformation and extreme environment. Some examples include, but are not limited to:
- Heating elements
- Aircraft and jet engine parts
- Heat exchangers
- Carburizing annealing products
- Sulfite liquor handling equipment
- Kiln liners
- Boiler baffles
- Refinery and chemical processing equipment
- Auto exhaust parts
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | |
| 309S | min. max | - 0.08 | 2.00 | 0.75 | 0.045 | 0.030 | 22.0 24.0 | - | 12.0 15.0 |
Physical Property:
| Grade | Density (kg/m3) | Yield Strength 0.2% offset (KSI) | Tensile Strength (KSI) | % Elongation (2″ Gauge length) |
| 309S | 7.98 | 30min | 75min | 40min |
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