SINOXX 4112
This is a highly corrosion-resistant stainless steel, classified as martensitic chromium steel, with the addition of molybdenum and vanadium. It offers a combination of high hardness, wear resistance, and excellent corrosion resistance. The material also exhibits good strength and the capability to achieve and maintain exceptional hardness (up to HRC 58) along with superior wear resistance.
DESIGNATION BY STANDARDS
EN: 1.4112,
UNS: S44003
DESCRIPTION
- Martensitic chromium steel with molybdenum and vanadium.
- High corrosion resistance.
- Obtains and keeps excellent hardness (HRC 58), and wear resistance.
CORROSION RESISTANCE
- Fresh water
- Steam
- Petroleum products
- Alcohol
APPLICATIONS
Ball bearings and races, gage blocks, moulds and dies, cutlery, valve components, knives and measuring instruments.
MACHINABILITY
- Best machined in the annealed condition.
- Carbide or ceramic tooling is recommended.
WELDABILITY
- Not commonly welded due to its tendency to air harden
- If welding is required, preheat and post weld treatment is required.
SPECIFICATIONS
- Corrosion resistance: 7/10 – High protection against rust and degradation
- Hardness: 8/10 – Excellent durability under pressure
- Strength: 6/10 – Strong and reliable for most applications
Designation by standards
| Brand name | Ravne | Mat. No. | DIN | EN | UNS |
| SINOXX 4112 | OCR6 | 1.41 | X90CrMoV18 | 1.4112 | S44003 |
Chemical composition (in weight %)
| C | Si | Mn | Cr | Mo | Ni | V | W | Others |
| 0.90 | max 1.0 | max 1.0 | 18.0 | 1.10 | - | 0.10 | - | - |
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