Know Exactly What Metal You Have — In Seconds

Stop guessing whether your cookware, cutlery, building materials, or scrap metal is genuine 304/316-grade stainless steel or a lower-quality 200-series alloy. This compact 12ml Stainless Steel Grade Testing Liquid gives you fast, reliable, color-coded results with just one drop — no lab equipment needed.

Made in Mainland China.

Why You Need This Testing Solution

Not all stainless steel is created equal. Grade 201, 202, and 301 alloys contain higher manganese content and are far less corrosion-resistant than food-safe 304 or marine-grade 316 steel. Counterfeit or mislabeled materials are common in kitchenware, construction, and manufacturing — this solution helps you verify quality instantly and avoid costly mistakes.

Detects Steel Grades: Accurately identifies 200, 201, 202, 301, and 304/316 stainless steel based on manganese content
One-Drop Test: Simply place one drop on the metal surface and compare the color change to the chart on the bottle
Compact & Portable: Tiny 2.1 × 6.7 cm (0.83" × 2.64") bottle — easy to tuck in a toolbox, bag, or workbench drawer
Results in Minutes: Quick color reaction provides confident, dependable material identification
Beginner-Friendly: Clear indicator chart printed on the bottle — no technical expertise required
Wide Application: Ideal for kitchenware inspection, scrap yards, quality control, workshops, manufacturing, and home use

Product Specifications

Volume: 12ml per bottle
Liquid: Transparent chemical solution
Bottle Color: White
Size: Approximately 2.1 × 6.7 cm (0.83" × 2.64")
Package: Available as 1-piece or 2-piece set

How to Use

Clean the metal surface to remove grease or dirt
Apply one small drop of testing liquid directly onto the surface
Observe the color change within 1–2 minutes
Compare the result color to the indicator chart on the bottle
Identify the stainless steel grade with confidence

Perfect For

Verifying cookware, cutlery, and kitchen appliances
Quality control in manufacturing and fabrication
Scrap metal sorting and recycling facilities
Building and construction material verification
DIY enthusiasts and home inspectors

For more handy tools for your workshop, check out our 14-in-1 Electrician Pliers – Wire Stripper, Cutter & Tester and our 1/4" Hex Shank Wire Twister Drill Attachment | Rebar Tie Tool.

For more information on safe chemical handling and material safety, visit the OSHA Hazard Communication Standard.

Frequently Asked Questions

Q: What stainless steel grades can this testing liquid identify?

A: This stainless steel testing solution can accurately identify grades 200, 201, 202, 301, and 304/316 based on their manganese content. A color-coded indicator chart on the bottle makes it easy to match the result to the correct grade.

Q: Is this testing liquid safe to use on kitchen utensils and tableware?

A: The liquid is a chemical testing agent and should be handled with care, kept away from children, and used in a well-ventilated area. After testing, rinse the surface thoroughly with water before using the item for food preparation. Always read any safety instructions provided with the product.

Q: How quickly does the test produce results?

A: The color reaction typically appears within 1–2 minutes of applying a single drop to the cleaned metal surface. Simply compare the resulting color to the chart on the bottle for an immediate grade identification.

Q: Can I use this to test building and construction materials?

A: Yes. This testing liquid is widely used in workshops, scrap yards, manufacturing facilities, and construction sites to verify the grade of stainless steel in structural components, pipes, and hardware — helping prevent costly material mix-ups.