Nitronic 30 is a nitrogen-strengthened austenitic stainless steel offering significantly higher annealed strength than conventional 304 while maintaining excellent aqueous corrosion resistance. With nominal composition of 16% chromium, 16% manganese, 2% nickel, and 0.2% nitrogen, this alloy provides good resistance to abrasive and metal-to-metal wear combined with superior mechanical properties. It is widely used for structural components, bulk solids handling equipment, and fasteners requiring a balance of strength, wear resistance, and corrosion protection .
1. Product Specifications & Physical DataZYTC Alloy supplies Nitronic 30 in comprehensive mill forms for industrial applications requiring verified mechanical properties and material traceability. Available Forms: Bar/rod, pipe/tube, coil/strip, plate/sheet/circle, wire, and custom configurations . Specifications: ASTM A240, ASTM A276, ASTM A666, UNS S20400 .
| Chemical Composition (Weight %) | Nitronic 30 Specification |
|---|
| Chromium (Cr) | 15.0 - 17.0 | | Manganese (Mn) | 14.0 - 16.0 | | Nickel (Ni) | 1.5 - 3.0 | | Nitrogen (N) | 0.15 - 0.30 | | Carbon (C) | 0.06 max. | | Silicon (Si) | 1.0 max. | | Phosphorus (P) | 0.040 max. | | Sulfur (S) | 0.030 max. | | Iron (Fe) | Balance |
| Physical Properties | Metric | Imperial |
|---|
| Density | 7.8 g/cm³ | 0.282 lb/in³ | | Modulus of Elasticity | 193 GPa | 28.0 × 10⁶ psi | | Thermal Conductivity (RT) | 16.2 W/m·K | 112 BTU·in/hr·ft²·°F | | Electrical Resistivity | 0.72 µΩ·m | 0.72 µΩ·m |
| Mechanical Properties (Minimum) | Value | Unit |
|---|
| Tensile Strength | 655 MPa | 95 ksi | | Yield Strength (0.2% offset) | 330 MPa | 48 ksi | | Elongation | 35% | 35% | | Hardness (Brinell) | 241 max. | 241 max. | | Hardness (Rockwell B) | 100 max. | 100 max. |
2.Fabrication & Material ComparisonHeat Treatment: Anneal at 1038-1121°C (1900-2050°F), rapid quench; cannot be hardened by heat treatment . 3. Cold Working: Hardened only through cold working; work-hardening rate higher than 304 enables higher strength through cold reduction . Machining: Good machinability with standard methods; requires positive slow feeds and resulfurized lubricants to manage tough chip formation . Welding: Excellent weldability using all common techniques; remains non-magnetic in heat-affected zone; no post-weld heat treatment required . Material Comparison: vs. 304 Stainless: 60% higher yield strength; comparable corrosion resistance; better wear resistance; lower nickel content reduces cost . vs. 316 Stainless: Higher strength but lower molybdenum content; less resistant to pitting in chloride environments . vs. 201 Stainless: Higher manganese and nitrogen provide better strength; similar corrosion resistance . vs. Nitronic 60: Lower silicon and nickel; Nitronic 60 offers better galling resistance for metal-to-metal wear applications .
3. ApplicationsTransportation: Structural components, hose clamps, fasteners Material Handling: Bulk solids handling equipment, conveyors, chutes Mining & Minerals: Screening equipment, wear components, processing machinery Wastewater Treatment: Plant structures, tanks, screens, aeration equipment Construction: Structural components requiring higher strength than 304 General Engineering: Fasteners, springs, wire forms requiring corrosion resistance and strength
Contact ZYTC Alloy for certified Nitronic 30 materials with complete traceability, ASTM specifications, technical datasheets, and competitive pricing on standard sizes or custom-fabricated components. Email: daisy@zytcsteel.com WhatsApp/WeChat: +86 17335753350 |
