Premium AISI 347H Stainless Steel from China
Mar 23, 2026
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🧪 Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.04 - 0.10 |
| Manganese (Mn) | ≤ 2.00 |
| Silicon (Si) | ≤ 0.75 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 |
| Chromium (Cr) | 17.0 - 20.0 |
| Nickel (Ni) | 9.0 - 13.0 |
| Niobium (Nb) | 8×C min - 1.00 max |
| Tantalum (Ta) | ≤ 0.10 |
| Nitrogen (N) | ≤ 0.10 |
⚙️ Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength (Room Temperature) | ≥ 515 MPa |
| Yield Strength (0.2% Offset) | ≥ 205 MPa |
| Elongation in 50mm | ≥ 40% |
| Reduction of Area | ≥ 50% |
| Hardness (Brinell) | ≤ 217 HB |
| Hardness (Rockwell B) | ≤ 95 HRB |
| Impact Energy (Charpy V-notch, Room Temp) | ≥ 68 J |
| Fatigue Strength (107 cycles) | 240 MPa |
| Creep Rupture Strength (100,000h at 650°C) | 65 MPa |
| Young's Modulus | 200 GPa |
🔬 Physical Properties
| Property | Value |
|---|---|
| Density | 7.90 g/cm³ |
| Melting Point | 1400-1450°C |
| Thermal Conductivity (100°C) | 14.2 W/m·K |
| Thermal Conductivity (500°C) | 21.5 W/m·K |
| Thermal Expansion (20-100°C) | 17.3×10-6/K |
| Thermal Expansion (20-500°C) | 18.2×10-6/K |
| Specific Heat Capacity | 500 J/kg·K |
| Electrical Resistivity (20°C) | 0.73 µΩ·m |
| Magnetic Permeability | 1.02 µH/m (Non-magnetic) |
| Poisson's Ratio | 0.27-0.30 |
📏 Product Specifications
| Specification | Available Options |
|---|---|
| Product Forms | Round bars, square bars, flat bars, sheets, plates, tubes, pipes, forgings |
| Round Bar Diameter | 6mm - 300mm |
| Square Bar Size | 10mm - 150mm |
| Flat Bar Dimensions | 10-200mm (thickness) × 20-500mm (width) |
| Sheet Thickness | 0.5mm - 6mm |
| Plate Thickness | 6mm - 100mm |
| Tube Outer Diameter | 6mm - 219mm |
| Standards Compliance | ASTM A240, A479, A312, A213, EN 10088, JIS G4305, GB/T 1220 |
| Surface Finishes | Hot rolled, cold rolled, 2B, BA, No.4, hairline, mirror finish |
| Dimensional Tolerance | ±0.1mm to ±0.5mm (depending on product form) |
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