1. Brief introduction:

   It’s iron-nickel-chromium austenitic precipitation strengthened high elasticity alloy. After solution treatment, it has good plasticity and low hardness,so it’s easy to process and mold. After solid solution or cold strain aging treatment,it gains high mechanical and elastic properties.

   It is mainly used for manufacturing various aviation elastic sensitive elements and parts resistant to nitric acid or other corrosive media, such as bellows, diaphragms, bellows, transfer rods, baffles and other elastic structural members.

    

2. Chemical composition under YB/T5256-2011 standard:

   Grade	chemical composition,%
   3J1	C	P	S	Si	Mn	Cr	Ni	Ti	Al	Fe
   	MAX
   	0.05	0.02	0.02	0.8	1	11.5~13	34.5~36.5	2.7~3.2	1.0~1.8	Remainder

   Remarks：If require adjustments for some chemical compositions, pls consult with us.

   
   

3. Norminal mechanical properties at room temperature:
   

   Grade	Condition	Modulus of elasticity E	Tensile strength Rm N/mm2	Hardness Hv
   3J1	cold worked+Aged	186500-206000	≥1200	400-480

    

4. Main product types:

   wire,rod, bar,strip.

   
   

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