330 Stainless steel wire mesh
330 Stainless Steel Wire Mesh (UNS N08330, EN 1.4864, X12CrNiSi35-16, Incoloy 330) is is a premium high-nickel austenitic heat-resistant nickel-chromium-iron alloy wire mesh, engineered with high Ni-Cr-Si content (34–37% Ni, 17–20% Cr, 0.75–1.5% Si), Its primary characteristic is superior resistance to carburization, oxidation, and thermal shock at elevated temperatures, outperforming both 309 and 310S in specific severe environments.
Typical Chemical Composition:
Grade | Chromium (Cr) | Nickel (Ni) | Silicon (Si) | Carbon (C) | Manganese (Mn) | Iron (Fe) |
330 | 14.0 – 17.0% | 33.0 – 37.0% | 0.75 – 1.50% | ≤ 0.08% | ≤ 2.0% | Balance |
Standards: UNS N08330, EN 1.4864, ASTM B511 (wire cloth), ASTM B536 (plate/sheet), AMS 5592; often marketed as Incoloy® 330 (trade name).
Types of 330 Wire Mesh
Due to the high cost of the alloy, mesh is often designed for durability and long life.
Mesh Type | Weave Pattern | Common Use |
Rod-Reinforced Mesh Belts | Special Construction | Heavy-duty furnace belts carrying large or heavy parts through carburizing furnaces. |
Double Crimped Wire Mesh | Crimped Weave | High-strength screens for severe vibration and impact at high temperatures. |
Plain / Twill Weave | 1:1 or 2:1 | General parts baskets and smaller component supports. |
Expanded Metal | N/A | Lightweight trays and liners where maximum open area is needed. |
Comparison: 330 vs. 310S vs. 309
This comparison is critical for selecting the right high-temperature mesh. While 309 and 310S are excellent for oxidation, 330 is the choice for carburizing.
Feature | 330 (14-17Cr, 34-37Ni) | 310S (24-26Cr, 19-22Ni) | 309 (22-24Cr, 12-15Ni) |
Primary Strength | Carburization Resistance | Oxidation Resistance | Cost-Effective Heat Resistance |
Max Service Temp | ~1150℃ | ~1150℃ | ~1100℃ |
Carburization Resistance | Excellent | Moderate | Poor (can become brittle) |
Resistance to Sulfur | Good (with high Ni) | Good | Moderate |
Nickel Content | Very High (~35%) | High (~20%) | Moderate (~13%) |
Cost | Very High | High | Medium |
Best For | Case-hardening furnaces, carbon-rich atmospheres | General furnaces, radiant tubes, oxidizing atmospheres | Lower-temp furnace parts, cost savings |
Mechanical & Performance Advantages:
· Continuous service temperature: up to 1150°C (2100°F)
· Intermittent peak temperature: up to 1200°C (2192°F)
· Density: 7.98 g/cm³; Melting range: 1400–1425°C
· Annealing: 1065–1120°C, water quenching recommended
Typical Applications
· Heat Treatment & Furnace Engineering: Muffle furnaces, radiant tubes, heating element supports, furnace liners, annealing trays, kiln components
· Petrochemical & Chemical: High-temp catalyst filtration, carburizing/nitriding process equipment, sulfur recovery units, incinerator flue gas systems
· Power Generation: Boiler baffles, air preheater screens, high-temp dust removal
· Metallurgy: Molten metal filtration, slag separation, protective atmospheres purification
