304 Stainless Steel Test Solution – Grade ID Reagent 12ml
304 Stainless Steel Test Solution – Grade ID Reagent 12ml
Instantly Verify Stainless Steel Grades with One Drop
Stop guessing what grade of stainless steel you're working with. This 12ml 304 Stainless Steel Testing Solution is a fast, no-power-required reagent that reveals the manganese content of steel alloys through a simple color-change reaction. Perfect for fabricators, metal buyers, kitchen equipment inspectors, and DIY enthusiasts who need quick, on-the-spot material verification.
Made in Mainland China.
How It Works
Apply a single drop of the testing fluid to a clean steel surface and observe when — or whether — the liquid turns red. The reaction speed directly indicates the steel's manganese content and grade:
- 200 / Ordinary 201: Turns red within 5–30 seconds — high manganese content
- Authentic 201: Turns red in approximately 50 seconds
- 202: Turns red in approximately 1 minute
- 301: Very faint color change at 2–3 minutes — new national standard food-grade steel
- 304: No red color change within 3 minutes (bottom color may slightly darken) — old national standard food-grade steel ✓
Tip: In cold weather, gently warm the steel surface with a lighter for 3–6 seconds before applying the reagent for accurate results.
Key Features
- ✅ No power or equipment needed — simple drop-and-observe method
- ✅ Distinguishes 200 / 201 / 202 / 301 / 304 stainless steel grades
- ✅ Fast results — most readings complete within 3 minutes
- ✅ Compact 12ml bottle — easy to carry on the job site
- ✅ Ideal for verifying authenticity of steel cookware, fixtures, hardware, and more
- ✅ Brand new, high-quality formulation
Specifications
| Capacity | 12ml |
| Application | Stainless steel grade identification |
| Detects | 200, 201, 202, 301, 304 stainless steel grades |
| Power Required | None |
| Origin | Mainland China |
What's in the Box
- 1 × 12ml Steel Testing Fluid
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Frequently Asked Questions
Q: Can this stainless steel test solution identify genuine 304-grade steel?
A: Yes. Genuine 304-grade stainless steel will show no red color change within 3 minutes — at most, the bottom color may darken slightly. This makes it one of the most reliable quick-identification methods for verifying 304 food-grade steel without any lab equipment.
Q: Is this testing solution safe to use at home or on a job site?
A: The reagent is designed for external application to steel surfaces only. Always handle chemical testing fluids with care — avoid contact with skin and eyes, keep out of reach of children, and store in a cool, dry place. Use in a well-ventilated area for best practice.
Q: How many tests can I perform with one 12ml bottle?
A: Since only a single drop is needed per test, one 12ml bottle provides a large number of individual tests — typically well over 100 — making it highly cost-effective for both occasional and frequent use.
Q: Does temperature affect the test results?
A: Yes. In cold conditions, the reaction may slow down. To ensure accurate readings in low temperatures, use a lighter to briefly warm the steel surface for 3–6 seconds before applying the reagent drop.