SUS321、S32100

Stainless steel: SUS321

Characteristics and scope of application:

Adding Ti improves intergranular corrosion resistance and is not recommended for decorative parts.

 

Corrosion resistance:

SUS321, SUS347, and SUS348 are stainless steels stabilized with titanium, niobium plus tantalum, and niobium, respectively, and are suitable for welding members used at high temperatures.

 

chemical composition:

Grade	C≤	Si≤	Mn≤	S≤	P≤	Cr	Ni	Ti≥
SUS321	0.08	1.00	2.00	0.030	0.045	17.00 19.00	9.00 13.00	5×C%

 

Mechanical properties:

Tensile strength σb (MPa): ≥520

Conditional yield strength σ0.2 (MPa): ≥206

Elongation δ5 (%): ≥40

Section shrinkage rate ψ (%): ≥50

Hardness: ≤187HB; ≤90HRB; ≤200HV

 

Heat treatment specifications and metallographic structure:

Heat treatment specifications: 1) rapid solution cooling at 920 ～ 1150 ℃; 2) stabilizing treatment can be performed according to the requirements of the buyer. The heat treatment temperature is 850 ～ 930 ℃, but it must be specified in the contract.

Metallographic structure: the organization is characterized by austenite type.

 

delivery status:

Generally, it is delivered in a heat-treated state, and the type of heat treatment is specified in the contract; if it is not specified, it is delivered in a non-heat-treated state.