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Chemical composition and properties of SUS329J3L stainless steel is similar to AISI 2205.
1, Summary
SUS 329J3L (2205) contains a large number of enhanced corrosion resistance elements, such as Cr, Mo, N etc, it is duplex stainless steel coexisted austenite and ferrite.
2, Features
1) Superior salt corrosion, stress corrosion cracking (SCC), pitting, crevice corrosion, wear corrosion resistance compared with 316L and 317L.
Compared with austenitic stainless steel, in terms of pitting and cracking corrosion resistance of 2205 steel is much better, it has excellent corrosion resistance properties ;
2) Compared with the ordinary austenitic stainless steel, 2205 steel has lower coefficient of thermal expansion, but higher thermal conductivity;
3) High intensity, its compressive strength is twice than the austenitic stainless steel
4) Improve the chemical, marine equipment life, improve the economics of environmental protection equipment;
5) This alloy is particularly suitable for -50 ° F / +600 ° F temperature, strictly limited circumstances (particularly for welded structures).It can also be used in lower temperatures.
3, Applicable scope
Pressure vessels, high pressure storage tanks, high pressure piping, heat exchanger (chemical processing industry), oil and gas pipelines, heat exchangers, pipes, sewage treatment, pulp and paper industry classification, bleaching equipment, storage and processing systems, high-strength corrosion under the rotary axes, press rolls, blades, impellers, ship or truck's cargo box, food processing equipment, marine environmental equipment.
4,Chemical composition (JIS G 4305-2005) (wt%)
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Chemical composition
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C
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Si
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Mn
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P
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S
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Cr
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Ni
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Mo
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N
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Standard
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£0.03
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£1.00
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£2.00
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£0.04
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£0.03
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21.0~24.0
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4.5~6.5
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2.5~3.5
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0.08~0.2
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General
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0.025
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0.6
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1.5
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0.026
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0.001
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22.5
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5.8
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3.0
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0.16
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5, Properties (JIS G 4305-2005)
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Distinction
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Mechanical Properties
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Note
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Ys (Mpa)
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Ts (Mpa)
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El (%)
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Hv
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2.0t/2B
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Standard
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≥ 450
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≥ 620
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≥ 18
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≤ 320
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General
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670
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875
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27
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280
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6, Physical properties
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Density (g/cm3)
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Magnetic
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Specific Heat (J/g.0C)
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Thermal Conductivity 1000C(W/m. 0C)
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Thermal Expansion
20~1000C
(10-6/0C)
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7.8
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Yes
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0.45
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19.0
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13.7
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7, Heat Treatment
Solution treatment: 950 ~ 11000C, quench. The rate of Ferrite and Austenite general is controlled in 50%, the general content may be achieved a minimum of 30%
8, Using state
Solution annealed condition: NO.1, 2D, 2B, and other surface treatment status.
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