309-309S stainless steel pipe
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309/309S STAINLESS STEEL PIPE

309 and 309S are austenitic chromium-nickel stainless steels typically used in higher temperature applications. Due to their 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 and high temperatures. The only significant difference between 309 and 309S is the carbon content. 309S alloy has less carbon, which minimizes carbide precipitation and improves weldability.


Chemical   composition
CSiMnCrNiSP
≤0.08≤0.75≤2.022.0~24.012.0~15.0≤0.03≤0.045
Physical properties
g/cm³Gpa10-6/ºCW/m*Kμohm.in
7.9820014.915.678
Mechanical   properties
σb (MPa)σ0.2 (MPa)δ5 (%)hardness
≥515
    ≥205

    ≥35

    ≤217HB


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COMPANY INTRODUCTION

Shandong Zhongshi International Trade Co., Ltd. is located in Jinan, Shandong Province.Our main products include stainless steel, carbon steel, aluminum, copper, pre-painted galvanized coils, roofing sheets, and various specialty steel plates.
The company boasts an independent and comprehensive product assembly line and supply chain, integrating procurement, R&D, production, sales, and logistics, and implementing comprehensive system management. We offer OEM and ODM services and can manufacture any steel product according to customer drawings and samples. Our products serve major markets including the United States, Europe, the Middle East, Southeast Asia, and South America.

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