309S Stainless Steel Plate
309S Stainless Steel Plate is a low-carbon austenitic stainless steel, making it the highly weldable variation of Grade 309. It is characterized by high levels of chromium and nickel, giving it excellent resistance to oxidation and corrosion at elevated temperatures (up to 1830℉ or 980℃). The low carbon content minimizes carbide precipitation during welding, which preserves its corrosion resistance. This plate is primarily used in high-temperature industrial applications, such as furnace components, oven linings, heat exchangers, boiler baffles, and thermowells, where sustained heat and corrosion resistance are critical for long service life.
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- Commodity name: 309S Stainless Steel Plate
309S Stainless Steel Plate is a low-carbon austenitic stainless steel, making it the highly weldable variation of Grade 309. It is characterized by high levels of chromium and nickel, giving it excellent resistance to oxidation and corrosion at elevated temperatures (up to 1830℉ or 980℃). The low carbon content minimizes carbide precipitation during welding, which preserves its corrosion resistance. This plate is primarily used in high-temperature industrial applications, such as furnace components, oven linings, heat exchangers, boiler baffles, and thermowells, where sustained heat and corrosion resistance are critical for long service life.
309S Stainless Steel Plate Description
Applications
Furnace Parts (Doors, Burners, Fans) Heat Exchangers and Recuperators Boiler Baffles and Tube Hangers Kiln Liners and Incinerator Components High-Temperature Containers (Annealing Boxes) Petroleum Refining Equipment Chemical Processing Equipment Sulfite Liquor Handling Equipment Aircraft and Jet Engine Parts Thermal Processing Baskets and Trays Product Parameters
Product Name
309S Stainless Steel Plate
Type
Plate
Thickness
0.3mm-200mm
Length
2000mm, 2438mm, 3000mm, 5800mm, 6000mm, 12000mm, etc.
Width
40mm-600mm, 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, etc.
Standard
ASTM, AISI, JIS, GB, DIN, EN, etc.
Surface
BA, 2B, NO.1, NO.4, 4K, HL, 8K, etc.
Scope of Application
Widely used in high temperature and electrical industry, medical equipment construction, chemical, food industry, agriculture and ship parts, food and beverage packaging,
Kitchen supplies, trains, airplanes, conveyor belts, vehicles, bolts, nuts, springs and screens, etc.
Certificate
ISO, SGS, BV, etc.
Production Technology
Hot Rolling, Cold Rolling
Edge Processing
Edging, Trimming
Approximate grade comparison table
ASTM GB EN DIN JIS GOST 309S (UNS S30908) 0Cr23Ni13 1.4833 (X6CrNi23-13) X8CrNi23-13 (W. Nr. 1.4833) SUS 309S 20Х23Н13 (20Kh23N13) Chemical Composition
C (Carbon) Si (Silicon) Mn (Manganese) P (Phosphorus) S (Sulfur) Cr (Chromium) Ni (Nickel) Fe (Iron) ≤0.08 ≤1.00 ≤2.00 ≤0.045 ≤0.030 22.0 - 24.0 12.0 - 15.0 Balance Mechanical Properties
Tensile Strength (Rm) (MPa) Yield Strength (Rp0.2) (MPa) Elongation A5 (%) Hardness (HB/HRB/HV) ≥520 ≥205 ≥40 ≤187HRB, ≤90HRB, ≤200HRB Physical Performance
Density (g/cm^3) Modulus of Elasticity (GPa) Coefficient of Thermal Expansion (10^-6 / °C) (20-100°C) Coefficient of Thermal Conductivity (W/m·K) (100°C) Electrical Resistivity (micro-Ohm·cm) (20°C) ~7.98 ~200 ~16.0 ~15.6 ~78 -
309S Stainless Steel Plate - Stock Warehouse








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309S Stainless Steel Plate - Product Inspection








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309S Stainless Steel Plate - Product Measurement








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309S Stainless Steel Plate- Product Packaging








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