🟧 Product Overview
The High‑Temperature Alloy Series (330) is engineered for extreme thermal environments, offering:
- Outstanding oxidation resistance
- Excellent carburization resistance
- Stable mechanical properties at elevated temperatures
- Superior performance under thermal cycling
- Long‑term durability in furnace atmospheres
330 stainless steel contains high nickel and chromium, making it one of the most reliable materials for continuous high‑temperature service.
330 — Premium High‑Temperature Alloy Stainless Steel
- Excellent oxidation resistance up to ~1150°C
- Strong resistance to carburization and thermal shock
- Maintains strength and stability under prolonged heat exposure
- Ideal for industrial furnace components and high‑temperature structural parts
🟧 Available Grade
330
🟧 Standards
- ASTM A240 / A480
- EN 10095 (heat‑resistant alloys)
- GB/T 12345 (heat‑resistant stainless steel)
🟧 Chemical Composition (Typical)
| Element | 330 (%) |
|---|
| C | ≤0.08 |
| Cr | 17.0–20.0 |
| Ni | 34.0–37.0 |
| Mn | ≤2.0 |
| Si | ≤1.5 |
| Fe | Balance |
Note: The high nickel content is the key factor behind 330’s exceptional resistance to oxidation, carburization, and thermal shock.
🟧 Mechanical Properties (Typical)
| Property | Value |
|---|
| Yield Strength | ≥205 MPa |
| Tensile Strength | ≥520 MPa |
| Elongation | ≥40% |
330 maintains mechanical stability even under long‑term exposure to extreme temperatures.
🟧 Product Specifications
Thickness
Width
Surface Finishes
🟧 Applications
High‑Temperature Industrial Applications
- Industrial furnace components
- Heating elements
- Kiln parts
- Heat‑treating fixtures
- Thermal processing equipment
High‑Stress Thermal Environments
- Petrochemical heaters
- High‑temperature structural supports
- Carburizing atmospheres
- Thermal cycling systems
🟧 Why Choose WelSteels
- Full supply of high‑temperature alloy stainless steel (330)
- Stable performance under extreme heat
- Excellent oxidation and carburization resistance
- SGS / BV inspection available
- Export‑grade seaworthy packaging
