❓ FAQ – Stainless Steel Material Comparison (201 vs 304 vs 316)
❓ FAQ – Stainless Steel Material Comparison (201 vs 304 vs 316)
🔹 Q1: What are the common types of stainless steel available?
A: The three most commonly used grades are 201, 304, and 316. Each has different chemical compositions, corrosion resistance, mechanical properties, and suitable application environments.
🔹 Q2: What are the advantages and disadvantages of 201 stainless steel?
A:
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✅ Cost-effective and suitable for mass production
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✅ High hardness, good for stamping and forming
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⚠️ Lower corrosion resistance than 304/316
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⚠️ May have slight magnetic properties
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🛠️ Best used in dry indoor environments and non-critical components
🔹 Q3: Why is 304 stainless steel so widely used?
A:
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✅ Made with ~18% chromium and 8% nickel
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✅ Excellent corrosion resistance for most environments
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✅ Non-magnetic
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✅ Ideal for kitchenware, household hardware, building structures
🔹 Q4: Is 316 stainless steel the best grade available?
A:
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✅ Contains molybdenum (2–3%) for improved corrosion resistance
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✅ Highly resistant to salt, acid, and harsh chemicals
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✅ Preferred for marine equipment, medical devices, and industrial applications
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⚠️ Higher cost, often used in demanding environments only
Category | 201 Stainless Steel | 304 Stainless Steel | 316 Stainless Steel |
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Alloy Composition | Chromium + Manganese + Low Nickel | Chromium + Nickel (~8%) | Chromium + Nickel + Molybdenum (2–3%) |
Corrosion Resistance | Moderate – suitable for dry indoor use | High – suitable for most environments | Excellent – ideal for marine and chemical environments |
Mechanical Properties | High hardness, suitable for stamping | Good ductility and strength | High tensile strength and fatigue resistance |
Magnetic Properties | Partially magnetic | Non-magnetic | Non-magnetic |
Cost | Lowest | Moderate | Highest |
Typical Applications | Furniture hardware, indoor decorative parts | Kitchenware, tableware, building components | Medical devices, marine parts, chemical tanks |