AISI CA 6-NM / 1.4313 Stainless Steel

Stainless Steel AISI CA 6-NM / EN 1.4313: Properties, Applications, and Features

✅ General Technical Characteristics

Stainless steel AISI CA 6-NM (EN 1.4313) is a martensitic-ferritic corrosion-resistant steel with enhanced mechanical properties. It contains a moderate amount of nickel, providing increased strength and ductility. Due to its low carbon content and the addition of molybdenum, this steel offers good corrosion resistance, particularly in high-humidity and moderately aggressive environments.

Main Characteristics:

• High strength and hardness after heat treatment.
• Resistance to corrosion in humid and moderately aggressive environments.
• Good weldability and machinability.
• Improved impact toughness and resistance to cracking under load.
• Balanced combination of mechanical and corrosion-resistant properties.

🔬 Chemical Composition AISI CA 6-NM / EN 1.4313 (%):

• Carbon (C): ≤ 0.05
• Silicon (Si): ≤ 0.70
• Manganese (Mn): ≤ 1.50
• Phosphorus (P): ≤ 0.040
• Sulfur (S): ≤ 0.015
• Chromium (Cr): 12.0 – 14.0
• Nickel (Ni): 3.5 – 5.5
• Molybdenum (Mo): 0.20 – 0.80

💡 Thanks to the optimal combination of chromium, nickel, and molybdenum, this steel offers improved strength and corrosion resistance.

🏭 Applications

Steel AISI CA 6-NM (EN 1.4313) is used in various industries where a combination of strength, corrosion resistance, and impact toughness is required.

Main Application Areas:

• Turbine equipment and components for hydropower plants.
• Production of pumps and valves for industrial systems.
• Aerospace and shipbuilding industries.
• High-strength components for mechanical engineering.
• Components for the petrochemical and gas industries.

📊 Mechanical Properties

• Tensile Strength (Rm): 750 – 950 MPa
• Yield Strength (Rp0.2): ≥ 550 MPa
• Hardness (HB): 230 – 290 HB
• Elongation (A5): ≥ 14 %
• Impact Toughness (KV2): ≥ 40 J at -20°C

⭐ Features

• High mechanical strength – ensures durability of components operating under heavy loads.
• Corrosion resistance – suitable for humid and moderately aggressive environments.
• Heat resistance – withstands elevated temperatures without significant deterioration of mechanical properties.
• Good weldability – allows the steel to be used in structures requiring strong joints.
• Resistance to impact loads – reduces the risk of cracking and failure of components under dynamic loads.

AISI CA 6-NM / EN 1.4313 steel delivery forms