Hot Rolled Alloy 2304 Duplex Stainless Steel Plate with High Yield Strength and Corrosion Resistance

Certificação ISO, AISI
Quantidade de ordem mínima 50 kg
Preço US $2.25-6.85 / kg
Detalhes do produto
Modelo NÃO. 2304 s32304 Forma Plano
Técnica Laminado a quente Tratamento de superfície conservação em vinagre
Especificação 1220*2440, 1500*3000, 1500*6000, 2000*6000 mm Capacidade de produção 50.000 kg
índice do cromo 23% Conteúdo de níquel 4%
Teor de Molibdênio 0,2% Conteúdo de nitrogênio 0,1%
Densidade 7.800 kg/m3 Força de rendimento MPa 400
Resistência à tracção 600 MPa Alongamento 25%
Dureza HV10 180-230
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Hot Rolled Stainless Steel Plate

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Corrosion Resistant Duplex Stainless Steel Plate

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High Yield Strength Alloy 2304 Plate

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Descrição de produto
Alloy 2304 Duplex Stainless Steel Plate S32304
Alloy 2304 (UNS S32304) is a 23% chromium, 4% nickel, molybdenum-free duplex stainless steel. This alloy offers corrosion resistance properties similar to 316L, while providing mechanical properties with yield strength twice that of 304L/316L austenitic grades. These enhanced properties enable weight savings in properly designed pressure vessel applications.
Chemical Analysis
Typical Values (Weight %)
Carbon Chromium Nickel Molybdenum Nitrogen Others
0.020 23 4 0.2 0.1 S=0.001
PREN = [Cr%] + 3.3 [Mo%] + 16 [N%] ≥ 24
Mechanical Properties
Tensile Properties (Minimum Values)
°C Rp 0.2 MPa Rp 1.0 MPa UTS MPa °F YS 0.2% Offset KSI YS 0.1% Offset KSI UTS KSI Elongation %
20 400 440 600 68 58 64 87 25
100 330 365 570 212 48 53 83 25
200 280 310 530 392 41 45 77 20
300 230 260 490 572 33 38 71 20
Values obtained for hot rolled plates (th ≤ 2"). Alloy 2304 must not be used for extended periods at temperatures above 300°C (572°F) due to precipitation hardening.
Toughness Values (KCV Minimum Values)
Temp. -50°C +20°C -60°F +70°F
Single 75 J/cm² 90 J/cm² 54 ft. lbs 65 ft. lbs
Average (5) 90 J/cm² 150 J/cm² 65 ft. lbs 87 ft. lbs
Hardness (Typical Values)
Average (5) HV10 HB HRC
180-230 180-230 ≤ 20
Physical Properties
Density: 7,800 kg/m³ - 0.28 lb/in³
Interval Temp. °C Thermal expansion α×10⁻⁶K⁻¹ °C Resistivity (μΩ·cm) Thermal conductivity (W·m⁻¹·K⁻¹) Specific heat (J·kg⁻¹·K⁻¹) Young modulus E (GPa) Shear modulus G (GPa)
20-100 13 20 80 17 450 200 75
20-100 13 100 92 18 500 190 73
20-200 13.5 200 100 19 530 180 70
20-300 14 300 105 20 560 170 67
Structure
The chemical composition of Alloy 2304 is optimized to achieve a typical 50% austenite / 50% ferrite microstructure following solution annealing treatment at 950°-1050°C (1742°-1922°F). The microstructure demonstrates exceptional stability compared to molybdenum-containing duplex stainless steels. Intermetallic phases appear only after 10 hours of exposure in the 750°-850°C (1382°-1562°F) temperature range. Copper additions, when specified, increase hardness after heat treatment in the 350°-500°C (662°-932°F) range.
Processing
Hot Forming
Hot forming should be performed within the 1150°-900°C (2100°-1650°F) temperature range. Post-forming solution annealing treatment at 950°-1050°C (1742°-1922°F) is recommended to fully restore corrosion resistance and mechanical properties. Careful support during heating is essential to prevent creep deformation.
Cold Forming
Alloy 2304 can be cold formed using standard equipment for 304L and 316L grades. Higher stresses are required due to increased yield strength. Final solution annealing after cold forming restores optimal mechanical and corrosion resistance properties.
Descaling
Use standard 304L/316L solutions and pastes. Pickling times are longer than for austenitic grades due to the alloy's superior corrosion resistance.
Machinability
Alloy 2304 duplex demonstrates improved machinability, particularly in drilling operations, with performance equivalent to 316LEZ. Enhanced corrosion resistance and cleanliness are achieved without sulphur additions, improving localized corrosion resistance behavior.
Hot Rolled Alloy 2304 Duplex Stainless Steel Plate with High Yield Strength and Corrosion Resistance 0 Hot Rolled Alloy 2304 Duplex Stainless Steel Plate with High Yield Strength and Corrosion Resistance 1