660 A/B/C/D
Density: 7.93 g/cm³
Equivalent designations:
Incoloy A286, A-286, AISI/ASTM 660, DIN W.NR 1.4943
Available products:
pipe,tube,bar,rod,wire,sheet,strip,fastener,bolt and nut,pipe fittings
Product introduction
Alloy 660 is a precipitation hardening austenitic stainless steel known for its impressive strength at high temperatures up to 700°C. Also called the names as UNS S66286, and A-286 alloy. Alloy 660 gains its strength from a high degree of uniformity. It has an impressive yield strength minimum of 105,000 psi and is commonly used in high temperature fastening and bolting materials.
Applications:
1. High temperature fastening and bolting materials
2. Jet engines
3. Gas turbines
4. Turbo charger components
Chemical composition:
Different between 660A, 660B, 660C, 660D:
Applications:
1. High temperature fastening and bolting materials
2. Jet engines
3. Gas turbines
4. Turbo charger components
Chemical composition:
| Grade | Chemical Component % | |||||||||||
| Ni | Cr | Ti | Mn | Mo | Si | V | Al | C | P | S | B | |
| 660 | 24.0-27.0 | 13.5-16.0 | 1.9-2.35 | Max 2.0 | 1.0-1.5 | Max 1.0 | 0.1-0.5 | Max 0.35 | Max 0.0.8 | Max 0.04 | Max 0.03 | Max 0.01 |
| Grade | Class | Solutiona Treatment | Hardening Treatment | ||||||
| 660 | A | 1650 +/- 25 °F [900 +/-14 °C], hold 2 h, min and liquid quench | 1325 +/- 25 °F [720 +/- 14 °C] 16h, air cool | ||||||
| B | 1800 +/- 25 °F [980 +/-14 °C], hold 1 h, min and liquid quench | 1325 +/- 25 °F [720 +/- 14 °C] 16h, air cool | |||||||
| C | 1800 +/- 25 °F [980 +/-14 °C], hold 1 h, min and oil quench | 1425 +/- 25 °F [775 +/- 14 °C] hold 16h, air cool followed by 1200 +/- 25 °F [650 +/- 14 °C], hold 16h, air cool | |||||||
| D | 1650 +/- 25 °F [900 +/-14 °C], hold 2 h, min and liquid quench | 1325 +/- 25 °F [720 +/- 14 °C] hold 16h, air cool followed by 1200 +/- 25 °F [650 +/- 14 °C], hold 16h, air cool | |||||||
| Grade | Class | Tensile Strength, Mpa | Yield Strength (0.2%), Mpa | Elongation %, min | RA %, min | ||||
| Gr 660 | A, B , & C | 895 min | 585 min | 15 | 18 | ||||
| Gr 660 | D | 895 min | 725 min | 15 | 18 | ||||
Available products fo 660:
Welded pipe/tube
Seamless pipe/tube
Pipe fittings
Flanges
Bar/Profiles
Sheet/ Plate/Coil/Strip
Wire/Wire rope
Forgings
Welding Rod
Bolt and Nut
Our Equipments:
Test:
Packing: Anti-wet bag,wooden box,wooden pallet or as required.
Welded pipe/tube
Seamless pipe/tube
Pipe fittings
Flanges
Bar/Profiles
Sheet/ Plate/Coil/Strip
Wire/Wire rope
Forgings
Welding Rod
Bolt and Nut
Our Equipments:
Test:
Packing: Anti-wet bag,wooden box,wooden pallet or as required.