General information:

Alloy 1.4418 is a high carbon martensitic stainless steel alloy known primarily for its excellent strength and corrosion resistance. This alloy is also often referred to as "X4CrNiMo16-5-1" or "S165M" and is used in a variety of applications.


Chemical composition:

Carbon (C): 0.04 - 0.06%

Chromium (Cr): 15.0 - 17.0%

Molybdenum (Mo): 0.8 - 1.5%

Nickel (Ni): 4.0 - 6.0%

Manganese (Mn): 1.5% (max)

Phosphorus (P): 0.035% (max)

Sulfur (S): 0.015% (max)

Silicon (Si): 1.0% (max)


Characteristics:

Outstanding corrosion resistance: The 1.4418 alloy offers excellent resistance to corrosive media such as water, oil and chemicals.

High Strength: This alloy has high strength that makes it suitable for use in demanding applications such as aerospace, medical and automotive.

Good Weldability: 1.4418 alloy welds well and can be treated after welding without affecting corrosion resistance and strength.

Good machinability: This alloy has good machinability and its good mechanical properties make it easy to shape and drill.


Applications 

Alloy 1.4418 is used in a variety of applications including:

Aerospace

Medical Technology

Automotive Industry

Food Industry

Chemical processing plantspaper and pulp industry


Heat treatment:

Alloy 1.4418 can be subjected to a variety of heat treatments to improve its mechanical properties. Some of the most common 


Heat treatments are:

Solution heat treatment at 1040-1080°C followed by water or oil quenchingTemper at 200-300°C for 1-4 hours to reduce hardness and improve toughness


Forms of delivery:

Alloy 1.4418 is available in a variety of forms including:

Sheets

Rods

Tube

Forgings

Wire


Note: The above data is for reference only and may vary by manufacturer and production batch. The manufacturer's relevant specifications and data sheets should always be consulted prior to use.