Stainless Steel Grade Test Solution – 304 Manganese Detector 12ml
Stainless Steel Grade Test Solution – 304 Manganese Detector 12ml
HpLive Stainless Steel Grade Testing Solution – 12ml
Quickly and accurately identify the grade of chromium-nickel stainless steel with this compact, easy-to-use testing reagent. No equipment or machinery required — simply apply a drop and observe the color change to determine your steel's grade in minutes. Ideal for metalworkers, fabricators, DIY enthusiasts, and quality inspectors who need fast, reliable results on the spot.
Made in Mainland China.
How It Works
Apply a single drop of the testing solution directly onto the surface of the stainless steel. Watch the reaction carefully — the time it takes for the solution to turn red reveals the grade of the material:
- 200 / Regular 201: Turns red in ~5–30 seconds — manganese content above standard.
- 201: Turns red in approximately 50 seconds — manganese content above standard.
- 202: Turns red in approximately 1 minute — manganese content above standard.
- 301 Standard: Turns a light red in 2–3 minutes — new national standard; 304 stainless steel.
- 304 (Old National Standard): No color change within 3 minutes, with slight darkening only — highest quality indicator.
Tip: In cold weather, gently warm the test surface with a lighter for 3–6 seconds before applying the solution to ensure accurate results.
Key Features
- ✅ No machinery or power source needed
- ✅ Fast, visible color-change reaction
- ✅ Distinguishes between 200, 201, 202, 301, and 304 stainless steel grades
- ✅ Compact 12ml bottle — easy to carry and store
- ✅ Suitable for metalworking, fabrication, and quality control
Specifications
| Capacity | 12ml |
| Brand | HpLive |
| Application | Stainless steel grade identification |
| Battery Required | No |
| Origin | Mainland China |
What's in the Box
- 1 × 12ml Stainless Steel Testing Solution
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Frequently Asked Questions
Q: How do I use the stainless steel grade testing solution correctly?
A: Simply apply one drop of the testing solution onto a clean section of the stainless steel surface and observe how quickly the solution turns red. The reaction time directly indicates the grade — faster color change suggests a lower-grade or higher-manganese alloy, while no change within 3 minutes typically indicates 304 (old national standard) grade steel.
Q: Can I use this testing solution in cold weather?
A: Yes. When temperatures are low, the reaction may slow down. Before testing, briefly warm the steel surface with a lighter for approximately 3–6 seconds to ensure an accurate and timely color response.
Q: What stainless steel grades can this solution identify?
A: This 12ml testing reagent can help distinguish between grades 200, 201, 202, 301, and 304 stainless steel based on the timed color-change reaction. It is especially useful for verifying whether a material meets 304-grade standards.
Q: Is this solution safe to handle?
A: Handle with care as with any chemical reagent. Avoid contact with skin and eyes, and keep out of reach of children. Store in a cool, dry place away from direct sunlight. Always follow standard chemical safety precautions when using metalworking reagents.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.