AISI 201 / 1.4372 Stainless Steel

✅ General Technical Characteristics

Stainless steel AISI 201 (12X15G9ND) is an austenitic stainless steel containing an increased amount of manganese and nitrogen, providing high mechanical strength and corrosion resistance. This alloy is a more economical alternative to AISI 304 and AISI 316 while maintaining good performance characteristics under moderate loads.

Main Characteristics:

• High mechanical strength and hardness.
• Good corrosion resistance in mildly aggressive environments.
• Resistance to mechanical stress and wear.
• High plasticity and good weldability.
• Cost-effective compared to other austenitic steels.

🔬 Chemical Composition AISI 201 / 12X15G9ND (%)

• Carbon (C): ≤ 0.15
• Silicon (Si): ≤ 0.75
• Manganese (Mn): 5.5 – 7.5
• Phosphorus (P): ≤ 0.060
• Sulfur (S): ≤ 0.030
• Chromium (Cr): 16.0 – 18.0
• Nickel (Ni): 3.5 – 5.5
• Nitrogen (N): ≤ 0.25

💡 The increased content of manganese and nitrogen improves strength and reduces the need for expensive nickel, making the alloy more affordable.

🏭 Applications

Due to its high mechanical strength and corrosion resistance, AISI 201 (12X15G9ND) steel is widely used in various industries.

Main Application Areas:

• Production of household appliances and kitchen equipment.
• Automotive and railway industries.
• Architectural and decorative structures.
• Food and chemical industries (tanks, pipes, sheets).
• Manufacturing of cookware, railings, furniture, and design elements.

📊 Mechanical Properties

• Tensile Strength (Rm): 650 – 850 MPa
• Yield Strength (Rp0.2): ≥ 275 MPa
• Hardness (HB): ≤ 230 HB
• Elongation (A5): ≥ 40 %

⭐ Features

• Cost-effectiveness – a less expensive alloy compared to AISI 304 and AISI 316.
• Good mechanical strength – allows the material to be used in high-load constructions.
• Corrosion resistance – suitable for use in moderately aggressive environments.
• High plasticity – easily processed, stamped, and welded.
• Durability – withstands mechanical loads well and retains its properties over time.

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