SUS447J1、S44700

● Characteristics and scope of application:

447J1 stainless steel, high Cr-Mo system, C, N reduced to extremely low, corrosion resistance is very good, resistance to halide stress corrosion cracking, pitting corrosion 447J1 stainless steel is used to manufacture equipment and causticity related to organic acids such as acetic acid and lactic acid Alkali equipment.

 

● Chemical composition:

Grade	C≤	Si≤	Mn≤	S≤	P≤	Cr	Mo	Ni≤	Ti+Cu	N≤	Cu≤
SUS447J1	0.01	0.40	0.40	0.020	0.030	28.50  32.00	1.50 2.50	0.50	≤0.50	0.015	0.20

 

● Mechanical properties:

Tensile strength σb (MPa): ≥451

Conditional yield strength σ0.2 (MPa): ≥294

Elongation δ5 (%): ≥20

Section shrinkage ψ (%): ≥45

Hardness: ≤209HB

 

● Heat treatment specifications and metallographic structure:

Heat treatment specifications: annealing 900 ~ 1050 ℃ rapid cooling.

Metallographic structure: The structure is characterized by ferrite type.

 

● Delivery status:

Delivery in the annealed state.