ภาพรวม
HASTELLOY Alloy 6-3 (UNS N06985) is a nickel-chromium-molybdenum-copper superalloy containing Ni bal, Cr 22, Fe 19.5, Mo 7, Cu 1.9, and Co 5 max, designed for exceptional resistance to sulfuric acid and oxidizing chloride environments. The higher molybdenum content (7) and copper addition (1.9) compared to HASTELLOY 6 provide improved resistance to reducing acids, while the controlled cobalt content enhances structural stability. The alloy is widely used in chemical process equipment for handling sulfuric acid, hydrochloric acid mixtures, and other aggressive media.
คำอธิบาย (อังกฤษ)
HASTELLOY Alloy 6-3 is supplied in the sheet solution heat-treated condition, delivering yield strength of 324 MPa, tensile strength of 690 MPa, elongation of 50%, and hardness of HRB 79. The alloy is manufactured to multiple ASTM standards covering sheet/plate/strip (B 582), rod (B 581), pipe and tube (B 619, B 622, B 626), and fittings (B 366). The good ductility (50%) combined with high chromium and molybdenum content makes the alloy suitable for welded fabrications in the chemical process industry. HASTELLOY 6-3 is widely used in chemical processing, fertilizer production, and marine applications.
ช่วงขนาด
- Sheet: 0.5 - 6 mm thickness, Width up to 1200 mm, Length up to 3000 mm
- Plate: 6 - 50 mm thickness, Width up to 1500 mm, Length up to 3000 mm
- Strip: 0.1 - 3 mm thickness, Width up to 300 mm, Coil
ข้อกำหนดเกรด
| ระบบ | ค่า |
|---|---|
| 🇺🇸 ASTM | B 434 |
| European | EN 10095, DIN 17750 |
| China | GB/T 15007, GB/T 2054 |
| Japan | JIS H4551 |
| Aerospace | AMS |
องค์ประกอบทางเคมี
| ธาตุ | ค่า |
|---|---|
| Cr | 22 |
| Mo | 7 |
| Fe | 19.5 |
| Mn | 0.8 |
| Si | 0.4 |
| Cb+Ta | 0.3 |
| W | 1.5Max |
| Cu | 1.9 |
| Co | 5Max |
| C | 0.015max |
| Ni | bal |
คุณสมบัติเชิงกล
| productCenter.property | ค่า |
|---|---|
| Yield Strength (0.2% offset) | 324 MPa |
| Tensile Strength | 690 MPa |
| Elongation (in 2 in) | 50% |
| Hardness | HRB 79 |
คุณสมบัติทางกายภาพ
| คุณสมบัติ | หน่วย | ค่า |
|---|---|---|
| Density | g/cm³ | 0.316 lb/cu in |
| Specific Gravity | - | 8.75 |
| Melting Point | °C | 2480 °F |
| Specific Heat (32-212°F) | J/kg·K | 0.105 Btu/lb/°F |
| Thermal Expansion Coefficient (32-212°F) | ×10⁻⁶/K | 6.8 in/in/°F × 10⁻⁶ |
| Thermal Conductivity (32-212°F) | W/m·K | 75 Btu/sq ft/hr/°F/in |
| Electrical Resistivity (68°F) | μΩ·cm | 695 ohms/cir mil ft |
| Tensile Modulus of Elasticity | GPa | 29.5 × 10⁶ psi |