SUS304N2

SUS304N2  Austenitic Stainless Steel

Introduction & Properties

Stainless steel SUS304N2 is a kind of austenitic one containing chrome and nickel, and it is developed on the basis of SUS304  by adding nitrogen and niobium.Adding Nb can improve inter granular corrosion resistance of steel while adding N can significantly increase the strength, so that it can reduce the thickness of materials and weigh of parts and components. SUS304N2 can be used in the manufacturing for high strength and resistance to inter granular corrosion of the welding equipment and structures.

Chemical Composition of SUS304N2 (%)
 Grade                         C        Si        Mn          P           S          Cr          Ni        N
 SUS304N2   Min.      --        --          --             --           --        18.0       7.5      0.15
                         Max.    0.08    1.00     2.50     0.045    0.03     20.0      10.5    0.30

Forging process of SUS304N2
Preheat / ℃    initial forging temperature / ℃    final forging temperature / ℃     Cooling
      815                     1150 ~ 1160                                      ≥ 930                       air-cooled
Preliminary heat treatment of SUS304N2
Annealing on stress elimination: 300 ~ 350 ℃, heat 1 ~ 2h, air cooling;
 annealing on eliminating hardening: 750 ~ 850 ℃, heat 1 ~ 3h, fast-cooling.
 
Stabilization and solution heat treatment of SUS304N2
Solution heat treatment: 1010 ~ 1150 ℃, rapid cooling, the hardness ≤ 250HBW;
Stabilization treatment:  850 ~ 900 ℃, heat 2h, air cooling.

Application

SUS304N2 can be used for parts with the requirements of  high strength and resistance to inter granular corrosion.


Please contact our company service (hotline:86 0510-83,632,628) to get more information on selection, application, heat treatment and inventory and other related information about SUS304N2, you can also contact us for more information about austenitic stainless steel and  stainless steel.



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HongChao (DongGuan) Stainless Steel,INC.

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Guangdong,China

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