Dowel pins in hardened and Martensitic stainless steel

Dowel pins are widely used as a standard mechanical part in industrial production and manufacturing. Hardening or using martensitic stainless steel materials to manufacture cylindrical pins strength and wear resistance is often necessary to improve cylindrical pins' strength and wear resistance. This article will introduce the process, properties, and applications of hardened steel and martensitic stainless steel cylindrical pins.

Dowel Pin Stock: Cut this stock to the length you need.

Steel has good strength. M2 tool steel is more complicated than 4140 alloy steel for better wear resistance.

Stainless steel is more corrosion-resistant than steel. 18-8 stainless steel offers a balance of strength and corrosion resistance. It may be mildly magnetic. 316 stainless steel has the best corrosion resistance of our stainless steel dowel pin stock. It may be mildly magnetic. 416 stainless steel is more wear-resistant than other stainless steel. It has some corrosion resistance and is magnetic. 17-4 PH stainless steel is our most robust dowel pin stock. It has some corrosion resistance and is magnetic.

Hardened steel dowel pins process

Hardening is a heat treatment method that changes the crystal structure and properties of a material by rapid cooling. The process flow of hardened steel cylindrical pins generally includes the following steps:

1. Material preparation: choose suitable carbon steel as a raw material; usually, choose steel with higher carbon content.

2. Pre-heat treatment: Grinding, cleaning, and other treatments are carried out on the raw materials to remove oxides and pollutants on the surface.

3. Heating: Put the cylindrical pin into the heating furnace and heat it to the appropriate temperature, usually more than the material's critical temperature.

4. Quenching: the heated cylindrical pins are quickly immersed in a cooling medium, commonly used cooling media such as water, oil, and salt solution.

5. Temperature tempering: To reduce the internal stresses generated after quenching, the temperature tempering treatment is generally carried out.

Hardened steel dowel pin features and performance

Hardened steel cylindrical pins have the following features and performance:

1. High hardness: after hardening treatment, the surface hardness of cylindrical pins is significantly increased, Which can provide better wear resistance.

2. High strength: Hardening treatment changes the steel's crystal structure, enhancing its strength and toughness.

3. Low toughness: Hardening treatment makes the steel brittle, reducing its toughness and impact resistance.

4. Easy deformation: hardened steel cylindrical pins are susceptible to plastic deformation in the use process, so we need to pay attention to the conditions of use and the force size.

Hardened Steel Dowel Pins Application Areas

Hardened steel cylindrical pins are widely used in the following fields:

1. Machinery manufacturing: transmission parts or connectors used in automobiles, ships, machine tools, and other mechanical equipment.

2. Engineering construction: used in bridges, construction machinery, and other engineering construction fields.

3. Mining and metallurgy: used in mining equipment, metallurgical equipment, and so on.

Hardened Steel Dowel Pins Martensitic Stainless Steel Dowel Pins Material Characteristics

Martensitic stainless steel is a material with good corrosion resistance and mechanical properties. Compared with ordinary stainless steel, martensitic stainless steel has the following characteristics:

1. High strength: Martensitic stainless steel has higher strength and hardness than ordinary stainless steel.

2. Good corrosion resistance: Martensitic stainless steel has good corrosion resistance at room temperature and can resist the erosion of most chemical media.

3. Good plasticity: Martensitic stainless steel has good plasticity and workability and can be molded into various processes.

4. Easily magnetic: Martensitic stainless steel has a certain degree of magnetism, suitable for some industrial areas.

五、Hardened Steel Dowel Pins Application Areas

Martensitic stainless steel cylindrical pins are widely used in the following fields:

1. Chemical industry: used to manufacture equipment and pipelines with high corrosion resistance requirements.

2. Food processing: used to manufacture food processing equipment, such as stirrers, conveyor belts, etc..

3. Medical equipment: used to manufacture medical equipment and surgical tools.

4. Oil and gas extraction: used to manufacture oil and gas extraction equipment.

Hardened steel cylindrical pins and martensitic stainless steel cylindrical pins are two common cylindrical pin materials. Hardened steel cylindrical pins are characterized by high hardness and strength and are suitable for occasions requiring high wear resistance. Martensitic stainless steel cylindrical pins have good corrosion resistance and mechanical properties and are ideal for corrosive media. According to the specific application requirements and working environment, choosing appropriate materials can improve the performance and life of the cylindrical pin.

Center-Groove Dowel Pins: Center-groove pins are often used instead of clevis pins or to create T-handles. The grooves pinch shut when pressed into a hole, creating tension and holding the pin in place. The grooved center locks pins in position, while the smooth ends act as a pivot. The hole should be equal to or slightly larger than the diameter shown for the best fit. The ends are chamfered for easy insertion. Pins are made of zinc-plated steel for good strength and some corrosion resistance. Breaking strength is measured as double shear, the force required to break a pin into three pieces, type E pins.

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