S41008、X6Cr13、1.4000

characteristic

Used for parts with higher toughness and impact load.

use

Such as steam turbine blades, structural frames, stainless equipment, linings, bolts, nuts, etc.

 

chemical composition

Steel number	C≤	Si≤	Mn≤	S≤	P≤	Cr	Ni≤
S41008	0.08	1.00	1.00	0.030	0.040	11.50 13.50	0.60

 

Mechanical properties

Tensile strength σb (MPa): quenching and tempering, ≥412

Conditional yield strength σ0.2 (MPa): quenching and tempering, ≥206

Elongation δ5 (%): quenching and tempering, ≥20

Hardness: Annealed, ≤183HB

 

Heat treatment specifications and metallographic structure

Heat treatment specifications: 1) annealing, slow cooling at 800 ～ 900 ℃ or rapid cooling at about 750 ℃; 2) quenching (solid solution), oil cooling at 950 ～ 1000 ℃; 3) tempering, rapid cooling at 700 ～ 750 ℃.

Metallographic structure: The structure is characterized by ferrite type.

 

delivery status:

Generally, it is delivered in the state of heat treatment, and the type of heat treatment is indicated in the contract; if it is not specified, it is delivered in the state of no heat treatment.