Stainless Steel Pipe
309 stainless steel is a stainless steel type with incredible corrosion resistance and high temperature performance. It is widely used in fields such as aviation, chemical industry, and petroleum.
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309 and 309S are austenitic chromium-nickel stainless steels that are typically used for higher temperature applications. Due to its high chromium and nickel content, 309 and 309S alloys have a high degree of corrosion resistance, excellent oxidation resistance and excellent heat resistance, while providing good strength at room temperature and high temperature. The only significant difference between 309 and 309S is the carbon content. The 309S alloy has less carbon, which minimizes carbide precipitation and improves weldability.
Product Parameters
Product Name 309/309S Stainless Steel Pipe Type Steel Pipe Outer diameter Round Tube 4mm-200mm Square Tube 10*10mm-100*100mm Rectangular Tube 10*20mm-50*100mm Wall Thickness 0.6mm-6.0mm Length 1-6 meters, Length can be customized Standard ASTM, AISI, JIS, GB, DIN, EN, etc. Surface Black, Bright Polished, Rough Turning, Matt Surface Treatment, No. 4. BA, etc. Scope of Application Common applications for stainless steel pipes include food processing, Textile operations, Breweries, Water treatment plants, Oil and gas processing, Fertilizers and pesticides, Chemical applications, Construction, Pharmaceuticals, Auto parts, etc. Certificate ISO, SGS, BV, etc. Production Technology Hot Rolling, Cold Rolling Edge Processing Edging, Trimming
Chemical Composition
C Si Mn Cr Ni S P ≤ 0.08 ≤ 0.75 ≤ 2.0 22.0~24.0 12.0~15.0 ≤ 0.03 ≤ 0.045
Mechanical Properties
Tensile Strength Kb (MPa) Yield Strength σ0.2 (MPa) Elongation D5 (%) Hardness ≥515 ≥205 ≥35 ≤ 217HB
Physical Performance
Density(g/cm³) Modulus of Elasticity(Gpa) Coefficient of Thermal Expansion(10-6/°C) Coefficient of Thermal Conductivity(W/m*K) Resistivity(ΜΩ. cm) 7.98 200 14.9 15.6 78
In general, our online service time is Beijing time: 8:00-22:00, after 22:00, we will reply to your inquiry during the next working day.
The inner layer has a waterproof paper outer layer with iron packaging and is fixed with a fumigation wooden pallet. It can effectively protect products from corrosion during ocean transportation.
Of course, we can send samples to all parts of the world, our samples are free, but customers need to bear the courier costs.
You need to provide the grade, width, thickness, coating and the number of tons you need to purchase.
Under normal circumstances, we ship from Shanghai, Tianjin, Qingdao, Ningbo ports, you can choose other ports according to your needs.
Prices vary from period to period due to cyclical changes in the price of raw materials.
We have ISO 9001, SGS, EWC and other certifications.
In general, our delivery time is within 30-45 days, and may be delayed if the demand is extremely large or special circumstances occur.