![Stainless Steel Test Kit for Differentiating 316/304 [Packaging Upgraded 2025]](https://m.media-amazon.com/images/I/81tyzLzILKL._AC_SL3840_.jpg)






🔍 Know your steel, own your craft — don’t get caught with the wrong grade!
The MARSTEP Stainless Steel Test Kit offers a fast, reliable way to distinguish premium 316 stainless steel from common 304 or 201 grades. With over 100 tests per pack and a simple color-change method delivering results in 2 minutes, this upgraded 2025 kit is perfect for professionals needing quick verification on cutlery, pipes, wire, and castings. Compact and ready-to-use, it ensures you never compromise on material quality.
| ASIN | B0BRJLWV9Q |
| Batteries Required? | No |
| Best Sellers Rank | 84,139 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 115 in Surface & Hardness Testing |
| Customer Reviews | 1.0 1.0 out of 5 stars (1) |
| Date First Available | 12 Jan. 2023 |
| Included components | Stainless Steel Test Kit |
| Item Weight | 18 g |
| Item model number | 1 |
| Manufacturer | MARSTEP TECHNOLOGIES |
| Material | PE_(Polyethylene), Composition v2023 |
| Package Dimensions | 5.31 x 3.2 x 3.1 cm; 18 g |
| Part number | 1 |
| Special Features | Rapid test kit |
B**R
Damaged
Product damaged when delivered- this has now happened on two seperate occasions. I have raised a complaint prior to this one, and have had no reply back. Please can this be looked at as a matter of urgency.
Trustpilot
2 weeks ago
1 month ago