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309S stainless steel plate mill finish all size can be made as
client request
Description:
309S stainless steel - S30908 (American AISI, ASTM) 309S. The steel
mill produces more 309S stainless steel, which is better in
corrosion resistance and high temperature resistance. Can withstand
980 ° C high temperature. Mainly used in boilers, chemicals and
other industries. 309 does not contain sulfur S content compared to
309S.
309 stainless steel. 309S stainless steel - S30908 (American AISI,
ASTM) 309S.
Stainless steel 309 and 309S are austenitic chromium-nickel
stainless steels that are often used for higher temperature
applications. Due to their high chromium and nickel content, Alloys
309 and 309S are highly corrosion resistant, have outstanding
resistance to oxidation, and excellent heat resistance while
providing good strength at room and elevated temperatures. The only
significant difference between 309 and 309S is the carbon content.
Alloy 309S has a much less carbon composition which minimizes
carbide precipitation and improves weldability.
Surface condition
A number of different commercial surface finishes have been
developed to meet the aesthetic requirements of architects. For
example, the surface may be highly reflective or matte; it may be
glossy, polished or embossed; it may be colored, colored, plated or
etched with a pattern on the surface of the stainless steel, or may
be drawn, etc. To meet the designer's various requirements for
appearance. It is easy to maintain the surface condition. Only
occasional rinsing can remove dust. Due to the good corrosion
resistance, surface contamination or similar surface contamination
can also be easily removed.
Composition Specification (%)
Grade/E. | C | Mn | Si | P | S | Cr | Mo | Ni | Cu |
309S | 0.08 max | 2.0 max | 0.75 max | 0.045 max | 0.03 max | min: 22.0 max: 24.0 | - | min: 12.0 max: 15.0 | - |
Mechanical Property Specification
Grade | Tensile Strength MPa (min) | Yield Strength 0.2% MPa(min) | Elongation | Hardness |
309S | 515 | 205 | 40 | 217 |
Applications:
Most of the requirements for use are to maintain the original
appearance of the building for a long time. When determining the
type of stainless steel to be used, the main considerations are the
required aesthetic standards, the corrosive nature of the location
atmosphere, and the cleaning system to be used. However, more and
more applications are only seeking structural integrity or water
impermeability.
International Stainless Steel Marking Method:
1. Austenitic stainless steel is marked with numbers of 200 and 300
series. For example, some common austenitic stainless steels are
marked with 302, 304, 316 and 310.
2 Ferritic and martensitic stainless steels. The digital
representation of the 400 series.
3 Ferritic stainless steel is marked with 430 and 446, martensitic
stainless steel is marked with 410, 420 and 440C, two-phase
(austenitic-ferritic),
4 Stainless steel, precipitation hardened stainless steel and low
iron content At 50% of high alloys are usually patented or trade
names.
Stainless steel is often classified according to the state of the
organization: martensitic steel, ferritic steel, austenitic steel,
and the like. In addition, it can be divided into: chromium
stainless steel, chrome nickel stainless steel and chromium
manganese nitrogen stainless steel.
Export Packing:
1. Unit weight: 2-3tons per package or as client request.
2. Packing Type: strong wooden pallet and steel strip
reinforcement, or as clients' request.