Recommend Products
Name: Fujian Monel 400 Double End Stud Material: Monel 400 Standard: ASME B18.2.1 Size: 5/16 to 4 inch Length: 30 to 1000 mm Class: 12.9 Feature: Resistant to hydrofluoric acidQS Fastener: Monel 400 Double End Stud
Name: Inconel 625 Double End Stud Material: Inconel 625 Standard: ASME B18.2.1 Size: 5/16 to 4 inch Length: 30 to 1000 mm Class: 12.9 Feature: High Yield Strength, Durable Strength and Corrosion ResistanceQS Fastener: Inconel 625 Double End Stud
Name: Xiamen Inconel 600 High Strength Fastener Material: Inconel 600 Standard: ASME Size: 5/16 to 4 inch Length: 30 to 1000 mm Class: 12.9 Feature: High Yield Strength, Durable Strength and Corrosion ResistanceQS Fastener: Inconel 600 High Strength Fastener
Name: Inconel 600 Stud Bolt Putian Material: Inconel 600 Standard: ASME B18.2.1 Size: 5/16 to 4 inch Length: 30 to 1000 mm Class: 12.9 Feature: High Yield Strength, Durable Strength and Corrosion ResistanceQS Fastener: Inconel 600 Stud Bolt
Inconel 718 Nickel Chromium Screw
QS Fastener: Inconel 718 Nickel Chromium Screw
Name: Inconel 718 Nickel Chromium Screw
Material: B637 UNS N07718
Complete Set: Stud Bolt with Two Heavy Hex Nuts
Size: 3/4 Inch
Length: 20 mm
Thread: 10 UNC
Application: For Reactor Flange Connection
Material: B637 UNS N07718
Complete Set: Stud Bolt with Two Heavy Hex Nuts
Size: 3/4 Inch
Length: 20 mm
Thread: 10 UNC
Application: For Reactor Flange Connection
Quantity
Forged from aerospace-grade B637 UNS N07718 nickel-chromium alloy, the Inconel 718 Nickel Chromium Screw is engineered for extreme operating conditions ranging from -423°C to +704°C. With specifications of 3/4 inch × 200mm (10 UNC thread) and ASME/EN certifications, it delivers 300% longer service life than conventional alloy screws, making it the preferred choice for critical components in nuclear reactors, aircraft engines, and similar demanding applications.
1. Expansive Temperature Range (-253°C to 700°C)
The Inconel 718 Nickel Chromium Screw demonstrates stable performance across the entire temperature spectrum:
- Cryogenic -253°C:
- Tensile strength: 1650MPa
- Impact toughness: ≥34J
The Inconel 718 Nickel Chromium Screw demonstrates stable performance across the entire temperature spectrum:
- Cryogenic -253°C:
- Tensile strength: 1650MPa
- Impact toughness: ≥34J
- Room Temperature:
- Yield strength: ≥1034MPa (precipitation-hardened condition)
- High Temperature 650°C:
- Yield strength retention: ≥690MPa (outperforms 90% of stainless steels)
- Yield strength: ≥1034MPa (precipitation-hardened condition)
- High Temperature 650°C:
- Yield strength retention: ≥690MPa (outperforms 90% of stainless steels)
Temperature Stability Verification:
- At 650°C, retains 75% of room-temperature strength (vs. 50% for standard alloys)
- After 1000 hours at 700°C, strength retention exceeds 85%
- At 650°C, retains 75% of room-temperature strength (vs. 50% for standard alloys)
- After 1000 hours at 700°C, strength retention exceeds 85%
2. High-Temperature Strength System at 700°C
The Inconel 718 Nickel Chromium Screw maintains robust mechanical properties under extreme heat:
- Tensile Strength: 820-860MPa (exceeds ASTM B637 standard by 3%)
- Creep Resistance:
- 1000-hour rupture strength: ≥380MPa
- Creep rate: 1×10⁻⁷/s (at 345MPa stress)
The Inconel 718 Nickel Chromium Screw maintains robust mechanical properties under extreme heat:
- Tensile Strength: 820-860MPa (exceeds ASTM B637 standard by 3%)
- Creep Resistance:
- 1000-hour rupture strength: ≥380MPa
- Creep rate: 1×10⁻⁷/s (at 345MPa stress)
- Fatigue Performance:
- Fatigue limit at 650°C: 310MPa (10⁷ cycles)
- Crack propagation rate: 1.2×10⁻⁴mm/cycle
- Fatigue limit at 650°C: 310MPa (10⁷ cycles)
- Crack propagation rate: 1.2×10⁻⁴mm/cycle
3. Ultra-High Oxidation Resistance (800-1000°C)
While the Inconel 718 Nickel Chromium Screw is recommended for long-term use ≤700°C, its short-term oxidation resistance is exceptional:
- 800°C Exposure:
- 75% strength retention after 50 hours
- Oxidation rate <0.1mm/year (static air)
While the Inconel 718 Nickel Chromium Screw is recommended for long-term use ≤700°C, its short-term oxidation resistance is exceptional:
- 800°C Exposure:
- 75% strength retention after 50 hours
- Oxidation rate <0.1mm/year (static air)
- 1000°C Protection:
- Forms 2-5μm dense Cr₂O₃ protective layer
- Oxidation weight gain: 0.3-0.5mg/cm²·h
- Spallation resistance up to 1050°C
- Forms 2-5μm dense Cr₂O₃ protective layer
- Oxidation weight gain: 0.3-0.5mg/cm²·h
- Spallation resistance up to 1050°C
Send Message
