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309S stainless steel coil
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309S stainless steel coil

Stainless Steel 309 Coils contain a large amount of chromium compared to other stainless steel, offer higher corrosion & oxidation resistance. 

Type 309 S Alloy mainly divided into austenitic, ferrite and martensitic steels. These SS Coils also possess higher tensile strength and toughness compared to 304 SS due to more chromium.

Types 309 Stainless Steel and 309S are austenitic chromium-nickel stainless steels that provide excellent corrosion resistance and heat resistance plus good strength at room and elevated temperatures. Type 309S Stainless Steel is identical to Type 309 except for a lower carbon content that minimizes carbide precipitation and improves weld ability. They are essentially nonmagnetic as annealed and become lightly magnetic when cold worked.

Composition of 309S stainless steel coil

Element Chromium Nickel Carbon Manganese Phosphorus Sulfer Silicon Iron
309S 22.0 min.-24.0 max. 12.0 min.-15.0 max. 0.08 2 0.045 0.03 0.75 Balance

309S stainless steel coil Mechanical Property

Type Yield Strength 0.2% offset (KSI) Tensile Strength (KSI) % Elongation (2″ Gauge length)
309S 30 min. 75 min. 40 min.

Grade Energy Efficiency Table for 309S Stainless Steel Coil

STANDARDWERKSTOFF NR.UNSJISAFNORBSGOSTEN
SS 3091.4828S30900SUS 309

Specifications of 309S stainless steel coil

PropertiesMetricImperial
Tensile strength, ultimate620 MPa89900 psi
Tensile strength, yield (0.2%)310 MPa45000 psi
Izod impact120 - 165 J88.5 - 122 ft-lb
Modulus of elasticity200 GPa29000 ksi
Shear modulus77 GPa11200 ksi
Poissons ratio0.30.3
Elongation at break (in 50 mm)45%45%
Hardness, Brinell (converted from Rockwell B hardness)147147
Hardness, Knoop (converted from Rockwell B hardness)164164
Hardness, Rockwell B8585
Hardness, Vickers (converted from Rockwell B hardness)169169

Application of 309S stainless steel plate

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    309S is suitable for many industries, such as: automobile, railway transportation, construction, building construction, chemical petrochemical, pharmaceutical.

    Also suitable for: energy and power, oil and gas industry, kitchen and food processing industry, plumbing and overhead water tanks.

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export country

We are a well known worldwide supply and export 300 series stainless steel coil in following countries:,Italy, Philippines, France,Ireland, Portugal, Gambia, Thailand, Ukraine, United Kingdom, Netherlands, South Africa, Spain, Turkey, Libya, Romania, Puerto Rico, Azerbaijan, United Arab Emirates, Pakistan, Ghana, Slovakia, Germany, Saudi Arabia, Afghanistan, Bolivia, Switzerland, Bangladesh, Taiwan, Oman, Egypt, Greece, Norway, Singapore, Bulgaria, Estonia, Belgium, Yemen, Hong Kong, Ecuador, Sri Lanka, Nepal, Belarus, Finland, Gabon, Iran, Canada, Argentina, Lebanon.

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