説明

13-8Mo Precipitation Hardening Stainless Steel Pipe

13-8 stainless steel, also known as PH13-8Mo or AMS5629, is an iron-based alloy containing elements such as aluminum, molybdenum, chromium, and nickel. It has good corrosion resistance and excellent mechanical properties, and is widely used in the aerospace and defense industries. Among them, 13-8Mo stainless steel exhibits excellent performance in high strength, high hardness, and good toughness, making it an excellent engineering material. 13-8Mo is a stainless steel with high hardness obtained through heat treatment, and its hardness after heat treatment usually reaches H950 level.

The effect of heat treatment on the hardness of 13-8 stainless steel:

Heat treatment can significantly improve the hardness of 13-8 stainless steel. In the heat treatment process of 13-8 stainless steel, by controlling the temperature and time, various elements in the alloy are rearranged and dissolved, thereby improving the grain structure and mechanical properties of the alloy. Among them, the hardness of 13-8 stainless steel treated with H950 can reach a high level, usually between HRC 40-44.

Process flow of H950 heat treatment:

H950 heat treatment is one of the commonly used heat treatment processes for 13-8 stainless steel. It usually includes the following steps:

(1) Solution treatment: Firstly, heat the 13-8 stainless steel to a temperature of about 1010 degree C and maintain it for a certain period of time for solution treatment, so that the alloy elements in the solution are uniformly dissolved.

(2) Processing annealing: Next, the material after solution treatment is processed and annealed to reduce its hardness for processing and forming.

(3) Cooling: Finally, the annealed material is rapidly cooled to fix its microstructure and hardness.

Performance characteristics of H950 after heat treatment:

The 13-8 stainless steel treated with H950 has some significant performance characteristics:

(1) High hardness: After H950 heat treatment, the hardness of 13-8 stainless steel can reach the level of HRC 40-44, with good wear resistance and abrasion resistance.

(2) Good toughness: Despite the increase in hardness, 13-8 stainless steel after H950 heat treatment still has good toughness and can adapt to complex engineering application environments.

(3) Excellent corrosion resistance: After H950 heat treatment, the corrosion resistance of 13-8 stainless steel has been significantly improved, and it can perform well in harsh corrosive environments.

Due to its excellent performance characteristics, 13-8 stainless steel treated with H950 has been widely used in aerospace, defense, automotive manufacturing, chemical industry and other fields. Used for manufacturing high pressure and high temperature engineering equipment components, aerospace equipment structural components, etc.

1.Chemical Composition

C: [ Less than or equal to {{0}}.05] Mn: [ Less than or equal to 0.20] Si: [ Less than or equal to 0.10] S: [ Less than or equal to 0.008] P: [ Less than or equal to 0.010] Ni: [7.50-8.50] Cr: [12.25-13.25] Mo: [2.00-2.50] Al: [0.90-1.35] N: [ Less than or equal to 0.010]

2.Mechanical properties at room temp.

Quenched and Tempered Hardness Q&T Samples (HBW): [ Greater than or equal to 400]

Quenched and Tempered Hardness Q&T Samples (HRC): [ Greater than or equal to 43]

Required Plastic Elongation Strength Rp0.2 (MPa): [ Greater than or equal to 1310]

Tensile Strength Rm TS (MPa): [ Greater than or equal to 1420]

Reduction of Area Z (%): [ Greater than or equal to 50]

Elongation after Fracture 4D (%): [ Greater than or equal to 10]

Transverse Yield Strength Rp0.2 (MPa): [ Greater than or equal to 1310]

Transverse Tensile Strength Rm (MPa): [ Greater than or equal to 1420]

Elongation after cross-section A (%): [ Greater than or equal to 10]

Cross section shrinkage Z (%): [ Greater than or equal to 40]

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