X5CrNiN19-9、1.4315、X2CrNi18-9、1.4307

characteristic
X5CrNiN19-9 is a nitrogen-containing stainless steel. On the basis of X5CrNi18-10, S, Mn is reduced, and N element is added to prevent plasticity reduction and improve the strength of steel; improve the resistance to pitting corrosion, crevice corrosion and gap corrosion.

Scope of application:
X5CrNiN19-9 is the most widely used stainless steel, suitable for petroleum and chemical equipment. It is suitable for manufacturing acid pipelines and containers.

Chemical composition:

Grade	C≤	Si≤	Mn≤	S≤	P≤	Cr	Ni	N
X5CrNiN19-9	0.08	1.00	2.50	0.030	0.045	18.00  20.00	7.00  10.50	0.10 0.25

 

Mechanical properties:

Tensile strength σb (MPa): ≥550

Conditional yield strength σ0.2 (MPa): ≥275

Elongation δ5 (%): ≥35

Section shrinkage rate ψ (%): ≥50

Hardness HB≤217; HRB≤95; HV≤220

 

Heat treatment specifications and metallographic structure:

Heat treatment specifications: solid solution 1010 ~ 1150 ℃ rapid cooling.

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.