304 vs. 201 Stainless Steel: Which One is Better for Your Bottle?

Stainless steel bottles by a mountain lake.
Stainless Steel Bottles in Nature

Choosing the right stainless steel for your custom water bottles can be challenging. You want durability, attractiveness, and cost-effectiveness, but understanding steel grades can feel confusing. Making the wrong choice means risking rust, poor durability, and unhappy customers.

For drinkware like tumblers and bottles, 304 stainless steel1 is better than 201 because it's more resistant to rust and corrosion, ensuring a longer-lasting product.

But does this mean 201 stainless steel2 has no value at all? Not necessarily—read on to discover when and why you might still consider it.

Is 304 stainless steel really better than 201?

Choosing stainless steel can be confusing, especially between grades like 304 and 201. Here's how they stack up.

304 stainless steel contains higher amounts of nickel and chromium, making it significantly more resistant to corrosion than 201.

Side-by-side comparison of stainless steel types.
Comparing 201 vs. 304 Stainless Steel

Comparing 201 vs 304 stainless steel

Factor 201 Stainless Steel 304 Stainless Steel
Corrosion Resistance Moderate Excellent
Nickel Content Lower (3.5–5.5%) Higher (8–10.5%)
Chromium Content Around 16–18% Around 18–20%
Cost Lower Higher

201 stainless steel is appealing for its lower cost, but its weaker resistance to corrosion means products may rust sooner, especially when exposed to moisture or salty environments. For high-quality drinkware that remains rust-free, especially with frequent usage or exposure to moisture, 304 is the smarter choice.

Does 201 stainless steel rust?

If you're considering using 201 stainless steel, one crucial question you might have is whether it rusts. Understanding this helps avoid customer complaints and maintain brand reputation.

Yes, 201 stainless steel2 can rust, especially in humid or salty environments.

Rust risks of 201 stainless steel.
201 Stainless Steel and Rust Risks

Factors causing 201 stainless steel to rust:

Factor Explanation
Environment Exposure to moisture, salt, or acids speeds rusting.
Maintenance Lack of proper cleaning can accelerate rust formation.
Quality Variation Inconsistent production quality increases rust risk.

While it's tempting to choose 201 stainless steel to lower production costs, keep in mind your customers’ environments. For outdoor, marine, or humid areas, the added durability of 304 stainless steel can better meet their expectations.

Will a magnet stick to 201 stainless steel?

Have you ever noticed customers checking the quality of stainless steel products with a magnet? This test often causes confusion. Clarifying this aspect helps build trust in your brand.

Yes, a magnet will slightly stick to 201 stainless steel3 because it has lower nickel content, making it slightly magnetic.

Stainless steel 201 vs. 304 magnet test.
Magnet Test for Stainless Steel

Magnetism comparison:

Stainless Steel Type Magnetism Reason
201 Slightly magnetic Lower nickel, higher manganese content
304 Non-magnetic Higher nickel content reduces magnetism

This means you can quickly test stainless steel grades3 yourself. A slight attraction indicates 201 stainless steel, whereas 304 stainless steel will usually show no attraction.

What grade of stainless steel is best for drinkware?

With multiple stainless steel grades available, knowing which one to pick for drinkware is key to satisfying customers and standing out in the market.

Grade 304 stainless steel4 is best suited for drinkware, offering excellent corrosion resistance, food safety, durability, and ease of cleaning.

Stainless steel tumbler grades comparison.
Magnet Test for Stainless Steel

Quick comparison of stainless steel grades:

Grade Rust Resistance Durability Food Safety
201 Medium Good Acceptable, but can degrade
304 Excellent Very High High, widely accepted
316 Outstanding Highest Exceptional, medical-grade

While 316 stainless steel is superior, its high cost usually limits use to medical and specialty products. 304 is the ideal balance between quality and price, making it perfect for your drinkware line.

Conclusion

Choosing the right stainless steel directly impacts your product’s quality, customer satisfaction, and overall reputation. Although 201 stainless steel offers cost savings, investing in 304 stainless steel4 ensures durable, high-quality products that align with customer expectations. As your trusted partner, we always recommend grade 304 stainless steel to elevate your drinkware line.



  1. Explore the advantages of 304 stainless steel, including its corrosion resistance and durability, to enhance your product quality.  

  2. Learn about the scenarios where 201 stainless steel might be suitable, despite its limitations, to make informed decisions.  

  3. Understanding how magnetism works in stainless steel grades can help determine product quality.  

  4. Discover why 304 stainless steel is the best choice for drinkware, ensuring long-lasting performance and food safety.  

Get in Touch with CupCraft Supply

Need drinkware that fits your business? Contact CupCraft Supply today. You’ll get quick answers, custom solutions, and reliable support from our team—led by Pauline Chan—to meet your procurement needs fast and hassle-free.

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Get in Touch with CupCraft Supply

Need drinkware that fits your business? Contact CupCraft Supply today. You’ll get quick answers, custom solutions, and reliable support from our team—led by Pauline Chan—to meet your procurement needs fast and hassle-free.