Ni-Cr-Mo AISI 8640
Ni-Cr-Mo AISI 8640
Buy Ni-Cr-Mo 8640 bolts, nuts and other fasteners from Boltport, an Indian manufacturer & supplier of Ni-Cr-Mo 8640 bolting materials to ASTM B446, B564, F467, F468, UNS N068640, DIN EN 2.4856, AMS 5666 and BS 3076 specifications with properties adequate for high strength, corrosion resistant and high temperature applications up to 1000º C (1800º F).
Boltport fasteners offer Ni-Cr-Mo 8640 bolts and nuts with standard and custom manufacturing to your specification. We covers Ni-Cr-Mo 8640 hex bolts, studs, stud bolts, hex nuts, washers, threaded rod and other fastener in metric and inch sizes with coarse, fine and extra fine threads to ASME, UN, BS, ISO and DIN standards.
AISI 8640 Specifications
- ASTM B446 / ASME SB446
- ASTM B443 / ASME SB443
- ASTM B564 / ASME SB564
- ASTM F467 / F467M
- ASTM F468 / F468M
- AMS 5666
- BS 3076
- AISI 8640
- UNS N068640
- DIN / EN / Werkstoff No. 2.4856
AISI 8640 Properties
| Chemical Composition | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Elements | Ni | Cr | Mo | Fe | Nb + Tc | Co | Mn | Si | Al | Ti | C | P | S |
| Min % | - | 20.0 | 8.0 | - | 3.15 | 8.0 | - | - | - | - | - | - | - |
| Max % | Bal | 23.0 | 10.0 | 5.0 | 4.15 | 1.0 | 0.5 | 0.5 | 0.4 | 0.40 | 0.10 | 0.015 | 0.015 |
| Mechanical Properties | |||
|---|---|---|---|
| Temperature (°F) | Ultimate Tensile (ksi) | Yield Strength at 0.2% Offset(ksi) | Elongation % |
| Room Temp. | 144.0 | 84.0 | 44.0 |
| 400 | 134.0 | 66.0 | 45.0 |
| 8640 | 132.0 | 63.0 | 42.5 |
| 800 | 132.0 | 61.0 | 45.0 |
| 1000 | 130.0 | 61.0 | 48.0 |
| 1200 | 119.0 | 60.0 | 34.0 |
| 1400 | 78.0 | 59.0 | 59.0 |
| 18640 | 40.0 | 39.0 | 117.0 |
AISI 8640 Characteristics
- Excellent resistance to chloride pitting and crevice corrosion cracking
- Immune to Chloride ion stress corrosion
- Maintains high strength at elevated temperatures
- Resistant to sea water, in both flowing and stagnant condition
- Heat resistant
AISI 8640 Applications
- Marine engineering
- Furnaces & gas turbines
- Chemical processing plants
- Boiler & pressure vessels
- Nuclear power plants