1Cr12、12Cr12、F.3110-X6Cr13、08X13

● Characteristics and scope of application:

Stainless steel 1Cr12 is a good stainless heat-resistant steel for steam turbine blades and high-stress components.

 

● Chemical composition:

Grade	C≤	Si≤	Mn≤	S≤	P≤	Cr	Ni≤
1Cr12	0.15	0.50	1.00	0.030	0.040	11.50 13.00	0.60

 

● Mechanical properties:

Tensile strength σb (MPa): quenched and tempered, ≥590

Conditional yield strength σ0.2 (MPa): quenching and tempering, ≥390

Elongation δ5 (%): quenching and tempering, ≥25

Section shrinkage ψ (%): quenching and tempering, ≥55

Impact energy Akv (J): quenching and tempering, ≥118

Hardness: Annealing, ≤200HB; Quenching and tempering, ≥170HB

 

● Heat treatment specifications and metallographic structure:

Heat treatment specifications: 1) Annealing, slow cooling at 800 ～ 900 ℃ or quick cooling at about 750 ℃; 2) Quenching, oil cooling at 959 ～ 1000 ℃; 3) Quick cooling at 700 ～ 750 ℃

Metallographic structure: the organization is characterized by martensite 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.