Stainless Steel 17-4PH Hex Bolt

Stainless Steel 17-4 PH Hex Bolts are fasteners made from a specific type of stainless steel alloy known as 17-4 PH, which stands for "Precipitation Hardening." This alloy is also sometimes referred to as 17-4 stainless or 17-4 PH stainless steel. Here are some key features, applications, heat treatment, and machining considerations for 17-4 PH hex bolts:

Features:

• Corrosion Resistance: 17-4 PH stainless steel offers good corrosion resistance, making it suitable for various applications, including those exposed to moisture, chemicals, and marine environments.
• High Strength: This alloy has excellent strength properties, making it suitable for applications requiring high tensile and yield strength. It is often chosen for heavy-duty and high-stress applications.
• Precipitation Hardening: The "PH" in 17-4 PH stands for precipitation hardening, a heat treatment process that further enhances its mechanical properties. This process improves the strength and hardness of the material.
• Machinability: While 17-4 PH can be machined, it is worth noting that it can be more challenging to machine than some other stainless steel due to its high strength and hardness.
• Weldability: It is possible to weld 17-4 PH, but it may require special precautions and expertise to avoid issues like cracking. Post-weld heat treatment may also be necessary.

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• UNS

  S17400

• WNR

  1.4542

• ASTM / ASME

  ASTM A193 / SA193

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Applications: 17-4 PH hex bolts are used in a wide range of industries and applications, including:

• Aerospace components
• Defense and military equipment
• Oil and gas industry components
• Power generation equipment
• Medical devices
• Industrial machinery
• Marine equipment

Heat Treatment: Heat treatment is a critical aspect of working with 17-4 PH stainless steel. The alloy typically undergoes a solution annealing treatment at around 1950°F (1065°C), followed by rapid cooling to room temperature. After this, a precipitation hardening treatment is performed at a lower temperature, typically around 900-1150°F (480-620°C), to achieve the desired strength and hardness properties. This two-step heat treatment process is essential for optimizing the material's performance.

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SS 17-4Ph Hex Bolts Specification

Machining: Machining 17-4 PH stainless steel can be challenging due to its high strength and hardness. Some considerations for machining include:

• Use carbide tooling for best results.
• Lubricate or use coolant to reduce heat generation and prolong tool life.
• Minimize vibration during machining to avoid tool breakage.
• Take small, light cuts to reduce the load on cutting tools.
• Preheating the work piece before machining can be beneficial.

Equivalent Grades Of Stainless Steel 17-4 Hex Bolts

Chemical Composition of Stainless Steel 17-4PH Hex Bolts

Mechanical Properties of SS 17-4Ph Hex Bolts

Types of Stainless Steel 17-4PH Hex Bolts