SUS317、S31700

Stainless steel: SUS317

Characteristics and scope of application:

SUS317 (L) is a stainless steel containing molybdenum. The content of molybdenum in 317 stainless steel is slightly higher than that in 316 stainless steel. Characteristics: Similar to 316L, but added molybdenum metal to improve corrosion resistance. HB≤195, SUS317 is used in chemical ships, chemical products such as Reactor and other chemical equipment that requires high corrosion resistance.

 

chemical composition:

Grade	C≤	Si≤	Mn≤	S≤	P≤	Cr	Ni	Mo
SUS317	0.08	1.00	2.00	0.030	0.045	18.00 20.00	11.00 15.00	3.00 4.00

 

Mechanical properties:

Tensile strength σb (MPa): ≥520

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

Elongation δ5 (%): ≥40

Section shrinkage ψ (%): ≥60

Hardness: ≤187HB; ≤90HRB; ≤200HV

 

Heat treatment specifications and metallographic structure:

Heat treatment specifications:

Solution: 1010 ～ 1150 ℃, fast cooling.

Microstructure:

The organization is characterized by austenite type.