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RPZ Valve
With 20 years of expertise in steel ball production, our manufacturing facility was established in 1998 and holds the ISO9001:2015 certification. We specialize in a wide range of materials including carbon steel, chrome steel, plastic, ceramic, and rollers tailored to specific industrial requirements. Our global footprint spans markets in the USA, UK, Italy, Germany, Russia, Brazil, France, Peru, and South Africa.
Our stainless steel balls are engineered for high precision and durability across various industrial sectors. We provide both 300 series and 400 series to meet different corrosion resistance and hardness needs.
| AISI Number | C% | Si% | Mn% | Cr% | Ni% | Mo% | Property |
|---|---|---|---|---|---|---|---|
| AISI 304 | 0.07 Max | 1.00 Max | 2.00 Max | 17.0-19.0 | 8.0-10.5 | - | Slightly magnetic, HRC 25min |
| AISI 316 | 0.07 Max | 1.00 Max | 2.00 Max | 16.5-18.5 | 10.5-13.5 | 2.0-2.5 | High corrosion resistance |
| AISI 420 | 0.07-0.25 | 1.00 Max | 1.00 Max | 12.0-14.0 | - | - | Magnetic, HRC 50min |
| AISI 430 | 0.08 Max | 1.00 Max | 1.00 Max | 15.5-17.5 | - | - | Ferritic, heat resistant |
| AISI 440 | 0.95-1.20 | 1.00 Max | 1.00 Max | 16.0-18.0 | - | - | Martensitic, high hardness |
Packing Process: 10kg Weighing → Sealed Plastic Bags → Small Boxes → Detailed Labeling → Plywood Case.